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Pontederia crassipes. Pontederia crassipes (formerly "Eichhornia crassipes"), commonly known as common water hyacinth is an aquatic plant native to South America, naturalized throughout the world, and often invasive outside its native range. It is the sole species of the subgenus "Oshunae" within the genus "Pontederia". Anecdotally, it is known as the "terror of Bengal" due to its invasive growth tendencies.## Description.Water hyacinth is a free-floating perennial aquatic plant (or hydrophyte) native to tropical and sub-tropical South America. With broad, thick, glossy, ovate leaves, water hyacinth may rise above the surface of the water as much as 1 (m) in height. The leaves.

Pontederia crassipes. are 10–20 (cm) across on a stem which is floating by means of buoyant bulb-like nodules at its base above the water surface. They have long, spongy and bulbous stalks. The feathery, freely hanging roots are purple-black. An erect stalk supports a single spike of 8–15 conspicuously attractive flowers, mostly lavender to pink in colour with six petals. When not in bloom, water hyacinth may be mistaken for frog's-bit ("Limnobium spongia") or Amazon frogbit ("Limnobium laevigatum").One of the fastest-growing plants known, water hyacinth reproduces primarily by way of runners or stolons, which eventually form daughter plants. Each plant additionally can.

Pontederia crassipes. produce thousands of seeds each year, and these seeds can remain viable for more than 28 years. The common water hyacinth ("Pontederia crassipes") are vigorous growers and mats can double in size in one to two weeks. And in terms of plant count rather than size, they are said to multiply by more than a hundredfold in number, in a matter of 23 days.In their native range, these flowers are pollinated by long-tongued bees and they can reproduce both sexually and clonally. The invasiveness of the hyacinth is related to its ability to clone itself and large patches are likely.

Pontederia crassipes. to all be part of the same genetic form.Water hyacinth has three flower morphs and is termed "tristylous". The flower morphs are named for the length of their pistil: long, medium and short. Tristylous populations are however limited to the native lowland South America range of water hyacinth; in the introduced range, the M-morph prevails, with the L-morph occurring occasionally and the S-morph is absent altogether. This geographical distribution of the floral morphs indicates that founder events have played a prominent role in the species' worldwide spread.## Habitat and ecology.Its habitat ranges from tropical desert to subtropical or warm temperate.

Pontederia crassipes. desert to rainforest zones. The temperature tolerance of the water hyacinth is the following; its minimum growth temperature is 12 (C); its optimum growth temperature is 25 - 30 (C); its maximum growth temperature is 33 - 35 (C), and its pH tolerance is estimated at 5.0–7.5. Leaves are killed by frost and plants do not tolerate water temperatures > 34 (C). Water hyacinths do not grow where the average salinity is greater than 15% that of sea water (around 5 g salt per kg). In brackish water, its leaves show epinasty and chlorosis, and eventually die. Rafts of harvested.

Pontederia crassipes. water hyacinth have been floated to the sea where it is killed."Azotobacter chroococcum", a species of nitrogen-fixing bacteria, is probably concentrated around the bases of the petioles, but the bacteria do not fix nitrogen unless the plant is suffering extreme nitrogen deficiency.Fresh plants contain prickly crystals. This plant is reported to contain hydrogen cyanide, alkaloids, and triterpenoids, and may induce itching. Plants sprayed with 2,4-dichlorophenoxyacetic acid may accumulate lethal doses of nitrates, and other harmful elements in polluted environments.## Invasive species.Water hyacinth grows and reproduces quickly, so it can cover large portions of ponds and lakes. Particularly vulnerable are bodies.

Pontederia crassipes. of water that have already been affected by human activities, such as artificial reservoirs or eutrophied lakes that receive large amounts of nutrients. It outcompetes native aquatic plants, both floating and submerged. In 2011, Wu Fuqin et al. tracked the results of Yunnan Dianchi Lake and also showed that water hyacinth could affect the photosynthesis of phytoplankton, submerged plants and algae by water environment quality and inhibit its growth. The decay process depletes dissolved oxygen in the water, often killing fish.Water hyacinth can absorb a large amount of harmful heavy metals and other substances. After death, it will rot and.

Pontederia crassipes. sink to the bottom of the water, causing secondary pollution to the water body, destroying the natural water quality, and may even affect the quality of residents' drinking water in severe cases. Water where water hyacinth grows heavily is often a breeding place for disease vectors (e.g. mosquitoes and snails) and harmful pathogens, posing a potential threat to the health of local residents. On the other hand, water hyacinth can also provide a food source for goldfish, keep water clean and help to provide oxygen.The invasion of water hyacinth also has socioeconomic consequences. Since water hyacinth is comprised up of.

Pontederia crassipes. 95% water, the evapotranspiration rate is high. As such, small lakes that have been covered with the species can dry out and leave communities without adequate water or food supply. In some areas, dense mats of water hyacinth prevents the use of a waterway, leading to the loss of transportation (both human and cargo) as well as a loss of fishing possibilities. Large sums of money are allocated to the removal of water hyacinth from the water bodies as well as figuring out how to destroy the remains harvested. Harvesting water hyacinth mechanically requires a lot of effort. A million.

Pontederia crassipes. tons of fresh biomass would require 75 trucks with a capacity of 40m^3, per day, for 365 days to get rid of a million tons of water hyacinth. The water hyacinth would then be transferred to a dumping site and allowed to decompose which releases CO2, CH4 and nitrogen oxides which would all negatively impact the air quality and contribute to global warming.Water hyacinth has been widely introduced in North America, Europe, Asia, Australia, Africa, and New Zealand. In many areas, it has become an important and pernicious invasive species. In New Zealand, it is listed on the National Pest.

Pontederia crassipes. Plant Accord, which prevents it from being propagated, distributed, or sold. In large water areas such as Louisiana, the Kerala Backwaters in India, Tonlé Sap in Cambodia, and Lake Victoria, it has become a serious pest. The common water hyacinth has become an invasive plant species on Lake Victoria in Africa after it was introduced into the area in the 1980s.## United States.## Introduction into the U.S..Various accounts are given as to how the water hyacinth was introduced to the United States.The claim that the water hyacinth was introduced to the U.S. in 1884 at the World's Fair in New.

Pontederia crassipes. Orleans, also known as the World Cotton Centennial, has been characterized as the "first authentic account", as well as "local legend".At some time, versions of the "legend" asserted that the plants had been given away as a gift by a Japanese delegation at the fair. This claim is absent in a pertinent article published in a military engineer's trade journal dating to 1940, but appears in a piece penned in 1941 by the director of the wildlife and fisheries division at the Louisiana Department of Conservation, where the author writes, "the Japanese government maintained a Japanese building" at the fair,.

Pontederia crassipes. and the "Japanese staff imported from Venezuela considerable numbers of water hyacinth, which were given away as souvenirs". The claim has been repeated by later writers, with various shifts in the details. Thus NAS fellow Noel D. Vietmeyer (1975) wrote that "Japanese entrepreneurs" introduced the plant into the U.S., and the plants had been "collected from the Orinoco River in Venezuela", and the claim was echoed along the same gist by a pair of NASA researchers (), who asserted that the souvenir plants were carelessly dumped in various waterways. Canadian biologist Spencer C. H. Barrett (2004) meanwhile favored the theory.

Pontederia crassipes. they were first cultivated in garden ponds, after which they multiplied and escaped to the environs. The account gains a different detail as told by children's story-teller Carole Marsh (1992), who says "Japan gave away water hyacinth seeds" during the exposition, and another Southern raconteur, Gaspar J. "Buddy" Stall (1998) assured his readership that the Japanese gave each family a package of those seeds.One paper has also inquired into the role which catalog sales of seeds and plants may have played in the dissemination of invasive plants. It has been found that "P. crassipes" was offered in the 1884 issue.

Pontederia crassipes. of Bordentown, New Jersey-based Edmund D. Sturtevant's "Catalogue of rare water lilies and other choice aquatic plants", and of Germany has offered the plant since 1864 (since the firm was founded). By 1895, it was offered by seed-purveyors in the states of NJ, NY, California, and Florida.The "Harper's Weekly" magazine (1895) printed an anecdotal account stating that a certain man from New Orleans collected and brought home water hyacinths he collected from Colombia, c. 1892, and the plant proliferated in a matter of 2 years.## Infestation and control in the Southeast.As the hyacinths multiply into mats, they eliminate the presence.

Pontederia crassipes. of fish, and choke waterways for boating and shipping. This effect was well taking hold in the state of Louisiana by the turn of the 20th century.The plant invaded Florida in 1890, and an estimated 50 kg/m2 of the plant mass choked Florida's waterways. The clogging of the St. Johns River was posing a serious threat, and in 1897 the government dispatched a task force of the United States Army Corps of Engineers to solve the water hyacinth problem plaguing the Gulf states such as Florida and Louisiana.Thus in the early 20th century, the U.S. War Department (i.e., the Army.

Pontederia crassipes. Corps of Engineers) tested various means of eradicating the plants, including the jet-streaming of steam and hot water, application of various strong acids, and application of petroleum followed by incineration. Spraying with saturated salt solution (but not dilute solutions) effectively killed the plants; unfortunately this was considered prohibitively expensive, and the engineers selected Harvesta brand herbicide, whose active ingredient was arsenic acid, as the optimal cost-effective tool for eradication. This herbicide was used until 1905, when it was substituted with a different, white arsenic based compound. An engineer charged with the spraying did not think the poison to be a.

Pontederia crassipes. matter of concern, stating that the crew of the spraying boat would routinely catch fish from their working areas and consume them. However, spraying had little hope of completely eradicating the water hyacinth, due to the vastness of escaped colonies and the inaccessibility of some of the infested areas, and the engineer suggested that some biological means of control may be needed. In 1910, a bold solution was put forth by the New Foods Society. Their plan was to import and release hippopotamus from Africa into the rivers and bayous of Louisiana. The hippopotamus would then eat the water hyacinth.

Pontederia crassipes. and also produce meat to solve another serious problem at the time, the American meat crisis.Known as the American Hippo bill, H.R. 23621 was introduced by Louisiana Congressman Robert Broussard and debated by the Agricultural Committee of the U.S. House of Representatives. The chief collaborators in the New Foods Society and proponents of Broussard's bill were Major Frederick Russell Burnham, the celebrated American Scout, and Captain Fritz Duquesne, a South African Scout who later became a notorious spy for Germany. Presenting before the Agricultural Committee, Burnham made the point that none of the animals that Americans ate, chickens, pigs, cows,.

Pontederia crassipes. sheep, lambs, were native to the U.S.; all had been imported by European settlers centuries before, so why should Americans hesitate to introduce hippopotamus and other large animals into the American diet? Duquesne, who was born and raised in South Africa, further noted that European settlers on that continent commonly included hippopotamus, ostrich, antelope, and other African wildlife in their diets and suffered no ill effects. The American Hippo bill nearly passed, but fell one vote short.Water hyacinths have also been introduced into waters inhabited by manatees in Florida, for the purpose of bioremediation (cf. §Phytoremediation below) of the waters.

Pontederia crassipes. that have become contaminated and fallen victim to algal blooming. The manatees include the water hyacinth in their diet, but it may not be the food of first choice for them.## Legality of sale and shipment in the United States.In 1956 "E. crassipes" was banned for sale or shipment in the United States, subject to a fine and/or imprisonment. This law was repealed by HR133 [116th Congress (2019-2020)] on 12/27/2020.## Africa.The water hyacinth may have been introduced into Egypt in the late 18th to early 19th century during Muhammad Ali of Egypt's era, but was not recognized as an invasive.

Pontederia crassipes. threat until 1879. The invasion into Egypt is dated between 1879 and 1892 by Brij Gopal. Gopal; Junk; Davis (2000) ", Biodiversity in Wetlands" 2p. 109.</ref>The plant (Afrikaans: "waterhiasint") arguably invaded South Africa in 1910, although earlier dates have been claimed.The plant was introduced by Belgian colonists to Rwanda to beautify their holdings. It then advanced by natural means to Lake Victoria where it was first sighted in 1988. There, without any natural enemies, it has become an ecological plague, suffocating the lake, diminishing the fish reservoir, and hurting the local economies. It impedes access to Kisumu and other harbors.The.

Pontederia crassipes. water hyacinth has also appeared in Ethiopia, where it was first reported in 1965 at the Koka Reservoir and in the Awash River, where the Ethiopian Electric Light and Power Authority has managed to bring it under moderate control at considerable cost of human labor. Other infestations in Ethiopia include many bodies of water in the Gambela Region, the Blue Nile from Lake Tana into Sudan, and Lake Ellen near Alem Tena. By 2018, it has become a serious problem on Lake Tana in Ethiopia.The water hyacinth is also present on the Shire River in the Liwonde National Park in.

Pontederia crassipes. Malawi.## Asia.Water hyacinth was introduced to North America in 1884 and later to Asia, Africa, and Australia. Since there are no natural enemies in the new location, it can multiply quickly and cause disaster.The water hyacinth was introduced to Bengal, India because of its beautiful flowers and shapes of leaves, but turned out to be an invasive weed draining oxygen from the water bodies and resulted in devastation of fish stock. The water hyacinth was referred to as the "(Beautiful) Blue Devil" in Bengal, and "Bengal Terror" elsewhere in India; it was called "German weed" (Bengali: "Germani pana") in Bangladesh.

Pontederia crassipes. out of belief the German Kaiser submarine mission was involved in introducing them at the outbreak of World War I; and called "Japanese trouble" in Sri Lanka, due to the rumor that the British had planted them in order to entice Japanese aircraft to land on the insecure pads.In Bangladesh, projects have begun to utilize water hyacinth for the construction of floating vegetable gardens.Water hyacinth has also invaded the Tonlé Sap lake in Cambodia. An Osmose project in Cambodia is trying to fight it by having local people make baskets from it.The plant entered Japan in 1884 for horticultural appreciation,.

Pontederia crassipes. according to conventional wisdom, but a researcher devoted to the study of the plant has discovered that ukiyo-e artist Utagawa Kunisada (aka Utagawa Toyokuni III, d. 1865) produced a wood-block print featuring the water hyacinth, goldfish, and beautiful women, dated to 1855. The plant is floated on the water surface of filled (glassware) fishbowls, or glazed earthenware waterlily pots (hibachi pots serving as substitute).In the 1930s, water hyacinth was introduced into China as a feed, ornamental plant and sewage control plant, and it was widely planted in the south as an animal feed. Beginning in the 1980s, with the rapid.

Pontederia crassipes. development of China's inland industry, the eutrophication of inland waters has intensified. With the help of its efficient asexual reproduction and environmental adaptation mechanisms, water hyacinth has begun to spread widely in the river basin. The hyacinths blocked the river and hindered the internal water traffic. For example, many waterways in Zhejiang and other provinces were blocked by the rapidly growing water hyacinth. In addition, a large number of water hyacinths floating in the water will block sunlight from entering the water, and its decay consumes a lot of dissolved oxygen in the water, pollutes the water quality, and can.

Pontederia crassipes. kill other aquatic plants. The outbreak of water hyacinth has seriously affected the biodiversity of the local ecosystem and threatened the production, life and health of community residents.In Iraq, water hyacinth which was imported in the 1990s as a decorative plant, caused major problems for water supply systems and fishermen at the Euphrates.## Europe.In 2016, the European Union banned any sales of the water hyacinth in the EU. The species features on the list of Invasive Alien Species of Union Concern. This means that not only the sales but also importation, cultivation, or intentional release into the environment are forbidden.

Pontederia crassipes. in the whole of the European Union.## Oceania.In Papua New Guinea, water hyacinth blocked sunlight to other aquatic organisms, created habitat for malaria-carrying mosquitoes, clogged waterways to the point that boats could not get through and reduced the quality of water for purposes such as cooking, washing and drinking. People have lost income or even died due to being unable to travel to get food or medical care, or due to diseases from contaminated water or mosquitoes.## Control.Control depends on the specific conditions of each affected location such as the extent of water hyacinth infestation, regional climate, and proximity to.

Pontederia crassipes. human and wildlife.## Chemical control.Chemical control is the least used out of the three controls of water hyacinth, because of its long-term effects on the environment and human health. The use of herbicides requires strict approval from governmental protection agencies of skilled technician to handle and spray the affected areas. The use of chemical herbicides is only used in case of severe infiltration of water hyacinth. However, the most successful use of herbicides is when it is used for smaller areas of infestation of water hyacinth. This is because in larger areas, more mats of water hyacinths are likely to.

Pontederia crassipes. survive the herbicides and can fragment to further propagate a large area of water hyacinth mats. In addition, it is more cost-effective and less laborious than mechanical control. Yet, it can lead to environmental effects as it can penetrate into the ground water system and can affect not only the hydrological cycle within an ecosystem but also negatively affect the local water system and human health. It is also notable that the use of herbicides is not strictly selective of water hyacinths; keystone species and vital organisms such as microalgae can perish from the toxins and can disrupt fragile food.

Pontederia crassipes. webs.The chemical regulation of water hyacinths can be done using common herbicides such as 2,4-D, glyphosate, and diquat. The herbicides are sprayed on the water hyacinth leaves and leads to direct changes to the physiology of the plant. The use of the herbicide known as 2,4-D leads to the death of water hyacinth through inhibition of cell growth of new tissue and cellular apoptosis. It can take almost a two-week period before mats of water hyacinth are destroyed with 2, 4-D. Between 75000 and 150000 (acre) of water hyacinth and alligator weed are treated annually in Louisiana.The herbicide known as.

Pontederia crassipes. diquat is a liquid bromide salt that can rapidly penetrate the leaves of the water hyacinth and lead to immediate inactivity of plant cells and cellular processes. For the herbicide glyphosate, it has a lower toxicity than the other herbicides; therefore, it takes longer for the water hyacinth mats to be destroyed (about three weeks). The symptoms include steady wilting of the plants and a yellow discoloration of the plant leaves that eventually leads to plant decay.## Physical control.Physical control is performed by land-based machines such as bucket cranes, draglines, or boom or by water based machinery such as aquatic.

Pontederia crassipes. weed harvesters, dredges, or vegetation shredder. Mechanical removal is seen as the best short-term solution to the proliferation of the plant. A project on Lake Victoria in Africa used various pieces of equipment to chop, collect, and dispose of 1500 (ha) of water hyacinth in a 12-month period. It is, however, costly and requires the use of both land and water vehicles, but it took many years for the lake to become in poor condition and reclamation will be a continual process.It can have an annual cost from $6 million to $20 million and is only considered a short-term solution.

Pontederia crassipes. to a long-term problem. Another disadvantage with mechanical harvesting is that it can lead to further fragmentation of water hyacinths when the plants are broken up by spinning cutters of the plant-harvesting machinery. The fragments of water hyacinth that are left behind in the water can easily reproduce asexually and cause another infestation.However, transportation and disposal of the harvested water hyacinth is a challenge because the vegetation is heavy in weight. The harvested water hyacinth can pose a health risk to humans because of the plant's propensity for absorbing contaminants, and it is considered toxic to humans. Furthermore, the practice.

Pontederia crassipes. of mechanical harvesting is not effective in large-scale infestations of the water hyacinth, because this aquatic invasive species grows much more rapidly than it can be eliminated. Only 1 to 2 (acre) of water hyacinth can be mechanically harvested daily because of the vast amounts of water hyacinths in the environment. Therefore, the process is very time-intensive.## Biological control.As chemical and mechanical removal is often too expensive, polluting, and ineffective, researchers have turned to biological control agents to deal with water hyacinth. The effort began in the 1970s when USDA researchers released into the United States three species of weevil.

Pontederia crassipes. known to feed on water hyacinth, "Neochetina bruchi", "N. eichhorniae", and the water hyacinth borer "Sameodes albiguttalis". The weevil species were introduced into the Gulf Coast states, such as Louisiana, Texas, and Florida, where thousands of acres were infested by water hyacinth. It was found that a decade later in the 1980s that there was a decrease in water hyacinth mats by as much as 33%. However, because the life cycle of the weevils is ninety days, it puts a limitation on the use of biological predation to efficiently suppress water hyacinth growth. These organisms regulate water hyacinth by limiting.

Pontederia crassipes. water hyacinth size, its vegetative propagation, and seed production. They also carry microorganisms that can be pathological to the water hyacinth. These weevils eat stem tissue, which results in a loss of buoyancy for the plant, which will eventually sink. Although meeting with limited success, the weevils have since been released in many other countries. However, the most effective control method remains the control of excessive nutrients and prevention of the spread of this species.In May 2010, the USDA's Agricultural Research Service released "Megamelus scutellaris" as an additional biological control insect for the invasive water hyacinth species. "Megamelus scutellaris" is.

Pontederia crassipes. a small planthopper insect native to Argentina. Researchers have been studying the effects of the biological control agent in extensive host-range studies since 2006 and concluded that the insect is highly host-specific and will not pose a threat to any other plant population other than the targeted water hyacinth. Researchers also hope that this biological control will be more resilient than existing biological controls and the herbicides that are already in place to combat the invasive water hyacinth.Another insect being considered as a biological control agent is the semi-aquatic grasshopper "Cornops aquaticum". This insect is specific to the water hyacinth.

Pontederia crassipes. and its family, and besides feeding on the plant, it introduces a secondary pathogenic infestation. This grasshopper has been introduced into South Africa in controlled trials.The introduction of manatees into waterways was reportedly successful in controlling the plant's growth in Guyana.The Rhodes University Centre for Biological Control is rearing "Megamelus scutellaris" and the water hyacinth weevils "Neochetina eichhorniae" and "Neochetina bruchi" en masse for biological control at dams in South Africa; of importance is the Hartbeespoort Dam.The moth "Niphograpta albiguttalis" (Warren) (Lepidoptera: Pyralidae) has been introduced to North America, Africa and Australia. Larvae of this moth bore in the stems.

Pontederia crassipes. and flower buds of water hyacinth.## Uses.Since water hyacinth is so prolific, harvesting it for various uses also serves as a means of environmental control.## Bioenergy.Because of its extremely high rate of development, "Pontederia crassipes" is an excellent source of biomass. 1 (ha) of standing crop thus produces more than 70000 (m3/ha) of biogas (70% , 30% ). According to Curtis and Duke, 1 (kg) of dry matter can yield 370 (l) of biogas, giving a heating value of 22000 (kJ/m3) compared to pure methane (895 Btu/ft3)Wolverton and McDonald report approximately 0.2 (m3/kg) methane, indicating biomass requirements of 350 (t/ha).

Pontederia crassipes. to attain the 70000 (m3/ha ) yield projected by the National Academy of Sciences (Washington). Ueki and Kobayashi mention more than 200 (t/ha) per year. Reddy and Tucker found an experimental maximum of more than 1/2 (t/ha) per day.Bengali farmers collect and pile up these plants to dry at the onset of the cold season; they then use the dry water hyacinths as fuel. The ashes are used as fertilizer. In India, 1 (t) of dried water hyacinth yields about 50 liters ethanol and 200 kg residual fiber (7,700 Btu). Bacterial fermentation of 1 (t) yields 26,500 ft3 gas (600.

Pontederia crassipes. Btu) with 51.6% methane (), 25.4% hydrogen (), 22.1% carbon dioxide (), and 1.2% oxygen (). Gasification of 1 (t) dry matter by air and steam at high temperatures (800 (C)) gives about 40,000 ft3 (1,100 m3) natural gas (143 Btu/ft3) containing 16.6% , 4.8% , 21.7% (carbon monoxide), 4.1% , and 52.8% (nitrogen). The high moisture content of water hyacinth, adding so much to handling costs, tends to limit commercial ventures. A continuous, hydraulic production system could be designed, which would provide a better utilization of capital investments than in conventional agriculture, which is essentially a batch operation.The labor.

Pontederia crassipes. involved in harvesting water hyacinth can be greatly reduced by locating collection sites and processors on impoundments that take advantage of prevailing winds. Wastewater treatment systems could also favorably be added to this operation. The harvested biomass would then be converted to ethanol, biogas, hydrogen, gaseous nitrogen, and/or fertilizer. The byproduct water can be used to irrigate nearby cropland.## Phytoremediation, waste water treatment.Water hyacinth removes arsenic from arsenic-contaminated drinking water. It may be a useful tool in removing arsenic from tube well water in Bangladesh.Water hyacinth is also observed to enhance nitrification in wastewater treatment cells of living technology. Their.

Pontederia crassipes. root zones are superb micro-sites for bacterial communities.Water hyacinth is a common fodder plant in the third world especially Africa though excessive use can be toxic. It is high in protein (nitrogen) and trace minerals and the goat feces are a good source of fertilizer as well.Water hyacinth is reported for its efficiency to remove about 60–80% nitrogen and about 69% of potassium from water. The roots of water hyacinth were found to remove particulate matter and nitrogen in a natural shallow eutrophicated wetland.The plant is extremely tolerant of, and has a high capacity for, the uptake of heavy metals,.

Pontederia crassipes. including cadmium, chromium, cobalt, nickel, lead, and mercury, which could make it suitable for the biocleaning of industrial wastewater.The roots of "Pontederia crassipes" naturally absorb some organic compounds believed to be carcinogenic, in concentrations 10,000 times that in the surrounding water. Water hyacinths can be cultivated for waste water treatment (especially dairy waste water).In addition to heavy metals, "Pontederia crassipes" can also remove other toxins, such as cyanide, which is environmentally beneficial in areas that have endured gold-mining operations.Water hyacinth can take in and degrade ethion, a phosphorus pesticide.## Agriculture.In places where water hyacinth is invasive, overabundant, and in need.

Pontederia crassipes. of clearing away, these traits make it free for the harvesting, which makes it very useful as a source of organic matter for composting in organic farming. It is used internationally for fertilizer and as animal feed and silage for cattle, sheep, geese, pigs, and other livestock.In Bengal, India the "kachuri-pana" has been used primarily for fertilizer, compost or mulch, and secondarily as fodder for livestock and fish. In Bangladesh, farmers in the southwestern region cultivate vegetables on "floating gardens" usually with a bamboo-built frame base, with dried mass of water hyacinth covered in soil as bedding. As a large.

Pontederia crassipes. portion of cultivable land goes under water for months during monsoon in this low-lying region, farmers have grown this method for many decades now. The method of this agriculture is known by many names including "dhap chash" and "vasoman chash".In Kenya, East Africa, it has been used experimentally as organic fertilizer, although there is controversy stemming from the high alkaline pH value of the fertilizer.## Other uses.In various places in the world, the plant is used for making furniture, handbags, baskets, rope, and household goods/interior products (lampshades, picture frames) by businesses launched by NGOs and entrepreneurs.## Woven products.American-Nigerian Achenyo Idachaba.

Pontederia crassipes. has won an award for showing how this plant can be exploited for profit as woven procuts in Nigeria.## Paper.Though a study found water hyacinths of very limited use for paper production, they are nonetheless being used for paper production on a small scale. Goswami pointed out in his article that water hyacinth has the potential to make tough and strong paper. He found that adding water hyacinth pulp to the raw material of bamboo pulp for anti-grease paper can increase the physical strength of paper.## Edibility.The plant is used as a carotene-rich table vegetable in Taiwan. Javanese sometimes cook.

Pontederia crassipes. and eat the green parts and inflorescence. Vietnamese also cook the plant and sometimes add its young leaves and flower to their salads.## Medicinal use.In Kedah (Malaysia), the flowers are used for medicating the skin of horses. The species is a "tonic".## Potential as bioherbicidal agent.Water hyacinth leaf extract has been shown to exhibit phytotoxicity against another invasive weed "Mimosa pigra". The extract inhibited the germination of "Mimosa pigra" seeds in addition to suppressing the root growth of the seedlings. Biochemical data suggested that the inhibitory effects may be mediated by enhanced hydrogen peroxide production, inhibition of soluble peroxidase activity,.

Pontederia crassipes. and stimulation of cell wall-bound peroxidase activity in the root tissues of "Mimosa pigra". (Complete List of References) "Eichhornia crassipes"Species Profile – Water Hyacinth ("Eichhornia crassipes"), National Invasive Species Information Center, United States National Agricultural Library. Lists general information and resources for Water Hyacinth.Eichhornia crassipes Israel Wildflowers and native plantsPractical uses of Water HyacinthIUCN Leaflet on "E. crassipes" in the context of Lake Tanganyika"Water hyacinth", AquaPlant Profile.


Question: What is the closest upper taxonomy of this plant?

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Atriplex canescens. Atriplex canescens (or chamiso, chamiza, four-wing saltbush) is a species of evergreen shrub in the family Amaranthaceae native to the western and midwestern United States.## Description."Atriplex canescens" has a highly variable form, and readily hybridizes with several other species in the genus "Atriplex". The degree of polyploidy also results in variations in form. Its height can vary from 1 foot to 10 feet, but 2 to 4 feet is most common. The leaves are thin and 0.5 to 2 inches long.It is most readily identified by the fruits, which have four wings at roughly 90 degree angles and are densely.

Atriplex canescens. packed on long stems.This species blooms from April to October.## Habitat.Fourwing saltbush is most common in early succession areas such as disturbed sites and active sand dunes. It is also found in more mature successions dominated by sagebrush—"Artemisia tridentata" and shadscale.## Uses.Among the Zuni people, an infusion of dried root and blossoms or a poultice of blossoms is used for ant bites. Twigs are also attached to prayer plumes and sacrificed to the cottontail rabbit to ensure good hunting. The Native American Hopi Indians preferred the ashes of four-wing saltbush for the nixtamalization of maize (the first step in the.

Atriplex canescens. process of creating tortillas and pinole, by which the pericarp of Indian corn is removed before parching and grinding). Oftentimes the four-wing saltbush was used instead of slaked lime (hydrate lime/slaked powder lime). Four-wing saltbush is also a common marker that archaeologists can use to locate ancient Pueblo ruins, which may indicate that the small branches of this bush were burned for their alkaline ashes to nixtamalize maize by Native peoples throughout the South-Western United States. USDA Plants Profile: "Atriplex canescens" Calflora: "Atriplex canescens" Jepson Manual eFlora (TJM2) treatment of "Atriplex canescens" USDA Forest Service: "Atriplex canescens" UC Photos gallery:.

Atriplex canescens. "Atriplex canescens.


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Scissor-tailed flycatcher. The scissor-tailed flycatcher ("Tyrannus forficatus"), also known as the Texas bird-of-paradise and swallow-tailed flycatcher, is a long-tailed bird of the genus "Tyrannus", whose members are collectively referred to as kingbirds. The kingbirds are a group of large insectivorous (insect-eating) birds in the tyrant flycatcher (Tyrannidae) family. The scissor-tailed flycatcher is found in North and Central America.## Latin name and etymology.Its former Latin name was "Muscivora forficata". The former genus name "Muscivora" derives from the Latin words for 'fly' () and 'to devour' (), while the species name "forficata" derives from the Latin word for 'scissors' (). The scissortail is now.

Scissor-tailed flycatcher. considered to be a member of the "Tyrannus", or 'tyrant-like' genus. This genus earned its name because several of its species are extremely aggressive on their breeding territories, where they will attack larger birds such as crows, hawks and owls.## Description.Adult birds have pale gray heads and upper parts, light underparts, salmon-pink flanks and undertail coverts, and dark gray wings. Axillars and patch on underwing coverts are red. Their extremely long, forked tails, which are black on top and white on the underside, are characteristic and unmistakable. At maturity, the male may be up to 15 (in) in length, while.

Scissor-tailed flycatcher. sympatric, ecologically similar sister species. Both these species have simultaneously expanded their breeding ranges eastward over the past 50 years Scissor-tailed flycatcher - "Tyrannus forficatus" - USGS Patuxent Bird Identification InfoCenter Stamps for El Salvador, Nicaragua, United States at bird-stamps.org Birds of Oklahoma: Scissor-tailed Flycatcher, Oklahoma's State Bird (with link to image gallery).


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Fresnel lens. A Fresnel lens ( ; ; or ) is a type of composite compact lens developed by the French physicist Augustin-Jean Fresnel (1788–1827) for use in lighthouses. It has been called "the invention that saved a million ships."The design allows the construction of lenses of large aperture and short focal length without the mass and volume of material that would be required by a lens of conventional design. A Fresnel lens can be made much thinner than a comparable conventional lens, in some cases taking the form of a flat sheet. The simpler dioptric (purely refractive) form of the lens.

Fresnel lens. was first proposed by Count Buffon and independently reinvented by Fresnel. The "catadioptric" form of the lens, entirely invented by Fresnel, has outer elements that use total internal reflection as well as refraction; it can capture more oblique light from a light source and add it to the beam of a lighthouse, making the light visible from greater distances.## Description.The Fresnel lens reduces the amount of material required compared to a conventional lens by dividing the lens into a set of concentric annular sections. An ideal Fresnel lens would have an infinite number of sections. In each section, the overall.

Fresnel lens. thickness is decreased compared to an equivalent simple lens. This effectively divides the continuous surface of a standard lens into a set of surfaces of the same curvature, with stepwise discontinuities between them.In some lenses, the curved surfaces are replaced with flat surfaces, with a different angle in each section. Such a lens can be regarded as an array of prisms arranged in a circular fashion with steeper prisms on the edges and a flat or slightly convex center. In the first (and largest) Fresnel lenses, each section was actually a separate prism. 'Single-piece' Fresnel lenses were later produced, being.

Fresnel lens. used for automobile headlamps, brake, parking, and turn signal lenses, and so on. In modern times, computer-controlled milling equipment (CNC) or 3-D printers might be used to manufacture more complex lenses.Fresnel lens design allows a substantial reduction in thickness (and thus mass and volume of material) at the expense of reducing the imaging quality of the lens, which is why precise imaging applications such as photography usually still use larger conventional lenses.Fresnel lenses are usually made of glass or plastic; their size varies from large (old historical lighthouses, meter size) to medium (book-reading aids, OHP viewgraph projectors) to small (TLR/SLR.

Fresnel lens. camera screens, micro-optics). In many cases they are very thin and flat, almost flexible, with thicknesses in the 1 to 5 (mm) range.Most modern Fresnel lenses consist only of refractive elements. Lighthouse lenses, however, tend to include both refracting and reflecting elements, the latter being "outside" the metal rings seen in the photographs. While the inner elements are sections of refractive lenses, the outer elements are reflecting prisms, each of which performs two refractions and one total internal reflection, avoiding the light loss that occurs in reflection from a silvered mirror.## Lighthouse lens sizes.Fresnel designed six sizes of lighthouse lenses,.

Fresnel lens. divided into four "orders" based on their size and focal length. In modern use, these are classified as first through sixth order. An intermediate size between third and fourth order was added later, as well as sizes above first order and below sixth.A first-order lens has a focal length of 920 (mm) and stands about 2.59 (m) high, and 1.8 (m) wide. The smallest (sixth) order has a focal length of 150 (mm) and a height of 433 (mm).The largest Fresnel lenses are called hyperradiant (or hyper-radial). One such lens was on hand when it was decided to build and.

Fresnel lens. outfit the Makapuu Point Light in Hawaii. Rather than order a new lens, the huge optic construction, 12 (ft) tall and with over a thousand prisms, was used there.## Types.There are two main types of Fresnel lens: "imaging" and "non-imaging". Imaging Fresnel lenses use segments with curved cross-sections and produce sharp images, while non-imaging lenses have segments with flat cross-sections, and do not produce sharp images. As the number of segments increases, the two types of lens become more similar to each other. In the abstract case of an infinite number of segments, the difference between curved and flat segments.

Fresnel lens. disappears.Spherical: A spherical Fresnel lens is equivalent to a simple spherical lens, using ring-shaped segments that are each a portion of a sphere, that all focus light on a single point. This type of lens produces a sharp image, although not quite as clear as the equivalent simple spherical lens due to diffraction at the edges of the ridges.Cylindrical: A cylindrical Fresnel lens is equivalent to a simple cylindrical lens, using straight segments with circular cross-section, focusing light on a single line. This type produces a sharp image, although not quite as clear as the equivalent simple cylindrical lens due.

Fresnel lens. to diffraction at the edges of the ridges.Spot: A non-imaging spot Fresnel lens uses ring-shaped segments with cross sections that are straight lines rather than circular arcs. Such a lens can focus light on a small spot, but does not produce a sharp image. These lenses have application in solar power, such as focusing sunlight on a solar panel. Fresnel lenses may be used as components of Köhler illumination optics resulting in very effective nonimaging optics Fresnel-Köhler (FK) solar concentrators.Linear: A non-imaging linear Fresnel lens uses straight segments whose cross sections are straight lines rather than arcs. These lenses focus.

Fresnel lens. light into a narrow band. They do not produce a sharp image, but can be used in solar power, such as for focusing sunlight on a pipe, to heat the water within.## Uses.## Imaging.Fresnel lenses are used as simple hand-held magnifiers. They are also used to correct several visual disorders, including ocular-motility disorders such as strabismus. Fresnel lenses have been used to increase the visual size of CRT displays in pocket televisions, notably the Sinclair TV80. They are also used in traffic lights.Fresnel lenses are used in left-hand-drive European lorries entering the UK and Republic of Ireland (and vice versa,.

Fresnel lens. right-hand-drive Irish and British trucks entering mainland Europe) to overcome the blind spots caused by the driver operating the lorry while sitting on the wrong side of the cab relative to the side of the road the car is on. They attach to the passenger-side window.Another automobile application of a Fresnel lens is a rear view enhancer, as the wide view angle of a lens attached to the rear window permits examining the scene behind a vehicle, particularly a tall or bluff-tailed one, more effectively than a rear-view mirror alone.Multi-focal Fresnel lenses are also used as a part of retina.

Fresnel lens. identification cameras, where they provide multiple in- and out-of-focus images of a fixation target inside the camera. For virtually all users, at least one of the images will be in focus, thus allowing correct eye alignment.Fresnel lenses have also been used in the field of popular entertainment. The British rock artist Peter Gabriel made use of them in his early solo live performances to magnify the size of his head, in contrast to the rest of his body, for dramatic and comic effect. In the Terry Gilliam film "Brazil", plastic Fresnel screens appear ostensibly as magnifiers for the small CRT.

Fresnel lens. monitors used throughout the offices of the Ministry of Information. However, they occasionally appear between the actors and the camera, distorting the scale and composition of the scene to humorous effect. The Pixar movie Wall-E features a Fresnel lens in the scenes where the protagonist watches the musical Hello, Dolly! magnified on an iPod.## Photography.Canon and Nikon have used Fresnel lenses to reduce the size of telephoto lenses. Photographic lenses that include Fresnel elements can be much shorter than corresponding conventional lens design. Nikon calls the technology "Phase Fresnel".The Polaroid SX-70 camera used a Fresnel reflector as part of its.

Fresnel lens. viewing system.View and large format cameras can utilize a Fresnel lens in conjunction with the ground glass, to increase the perceived brightness of the image projected by a lens onto the ground glass, thus aiding in adjusting focus and composition.## Illumination.High-quality glass Fresnel lenses were used in lighthouses, where they were considered state of the art in the late 19th and through the middle of the 20th centuries; most lighthouses have now retired glass Fresnel lenses from service and replaced them with much less expensive and more durable aerobeacons, which themselves often contain plastic Fresnel lenses. Lighthouse Fresnel lens systems.

Fresnel lens. typically include extra annular prismatic elements, arrayed in faceted domes above and below the central planar Fresnel, in order to catch all light emitted from the light source. The light path through these elements can include an internal reflection, rather than the simple refraction in the planar Fresnel element. These lenses conferred many practical benefits upon the designers, builders, and users of lighthouses and their illumination. Among other things, smaller lenses could fit into more compact spaces. Greater light transmission over longer distances, and varied patterns, made it possible to triangulate a position.Perhaps the most widespread use of Fresnel lenses,.

Fresnel lens. for a time, occurred in automobile headlamps, where they can shape the roughly parallel beam from the parabolic reflector to meet requirements for dipped and main-beam patterns, often both in the same headlamp unit (such as the European H4 design). For reasons of economy, weight, and impact resistance, newer cars have dispensed with glass Fresnel lenses, using multifaceted reflectors with plain polycarbonate lenses. However, Fresnel lenses continue in wide use in automobile tail, marker, and reversing lights.Glass Fresnel lenses also are used in lighting instruments for theatre and motion pictures (see Fresnel lantern); such instruments are often called simply "Fresnels".

Fresnel lens. The entire instrument consists of a metal housing, a reflector, a lamp assembly, and a Fresnel lens. Many Fresnel instruments allow the lamp to be moved relative to the lens' focal point, to increase or decrease the size of the light beam. As a result, they are very flexible, and can often produce a beam as narrow as 7° or as wide as 70°. The Fresnel lens produces a very soft-edged beam, so is often used as a wash light. A holder in front of the lens can hold a colored plastic film ("gel") to tint the light or wire.

Fresnel lens. screens or frosted plastic to diffuse it. The Fresnel lens is useful in the making of motion pictures not only because of its ability to focus the beam brighter than a typical lens, but also because the light is a relatively consistent intensity across the entire width of the beam of light.Aircraft carriers and naval air stations typically use Fresnel lenses in their optical landing systems. The "meatball" light aids the pilot in maintaining proper glide slope for the landing. In the center are amber and red lights composed of Fresnel lenses. Although the lights are always on, the angle.

Fresnel lens. of the lens from the pilot's point of view determines the color and position of the visible light. If the lights appear above the green horizontal bar, the pilot is too high. If it is below, the pilot is too low, and if the lights are red, the pilot is very low.Fresnel lenses are also commonly used in searchlights, spotlights, and flashlights.## Projection.The use of Fresnel lenses for image projection reduces image quality, so they tend to occur only where quality is not critical or where the bulk of a solid lens would be prohibitive. Cheap Fresnel lenses can be.

Fresnel lens. stamped or molded of transparent plastic and are used in overhead projectors and projection televisions.Fresnel lenses of different focal lengths (one collimator, and one collector) are used in commercial and DIY projection. The collimator lens has the lower focal length and is placed closer to the light source, and the collector lens, which focuses the light into the triplet lens, is placed after the projection image (an active matrix LCD panel in LCD projectors). Fresnel lenses are also used as collimators in overhead projectors.## Solar power.Since plastic Fresnel lenses can be made larger than glass lenses, as well as being.

Fresnel lens. much cheaper and lighter, they are used to concentrate sunlight for heating in solar cookers, in solar forges, and in solar collectors used to heat water for domestic use. They can also be used to generate steam or to power a Stirling engine.Fresnel lenses can concentrate sunlight onto solar cells with a ratio of almost 500:1. This allows the active solar-cell surface to be reduced, lowering cost and allowing the use of more efficient cells that would otherwise be too expensive. In the early 21st century, Fresnel reflectors began to be used in concentrating solar power (CSP) plants to concentrate.

Fresnel lens. solar energy. One application was to preheat water at the coal-fired Liddell Power Station, in Hunter Valley Australia.Fresnel lenses can be used to sinter sand, allowing 3D printing in glass.## History.## Forerunners.Augustin-Jean Fresnel was not the first person to focus a lighthouse beam using a lens. That distinction apparently belongs to the London glass-cutter Thomas Rogers, who proposed the idea to Trinity House in 1788. The first Rogers lenses, 53cm in diameter and 14cm thick at the center, were installed at the Old Lower Lighthouse at Portland Bill in 1789. Behind each lamp was a back-coated spherical glass mirror, which.

Fresnel lens. reflected rear radiation back through the lamp and into the lens. Further samples were installed at Howth Baily, North Foreland, and at least four other locations by 1804. But much of the light was wasted by absorption in the glass.Nor was Fresnel the first to suggest replacing a convex lens with a series of concentric annular prisms, to reduce weight and absorption. In 1748, Count Buffon proposed grinding such prisms as steps in a single piece of glass. In 1790 (although secondary sources give the date as 1773 or 1788), the Marquis de Condorcet suggested that it would be easier.

Fresnel lens. to make the annular sections separately and assemble them on a frame; but even that was impractical at the time. These designs were intended not for lighthouses, but for burning glasses. David Brewster, however, proposed a system similar to Condorcet's in 1811, and by 1820 was advocating its use in British lighthouses.## Fresnel's contributions.The French (Commission of Lighthouses) was established by Napoleon in 1811, and placed under the authority of Fresnel's employer, the Corps of Bridges and Roads. As the members of the commission were otherwise occupied, it achieved little in its early years. But on 21 June 1819—three months.

Fresnel lens. after winning the physics of the Academy of Sciences for his celebrated memoir on diffraction—Fresnel was "temporarily" seconded to the commission on the recommendation of François Arago (a member since 1813), to review possible improvements in lighthouse illumination.By the end of August 1819, unaware of the Buffon-Condorcet-Brewster proposal, Fresnel made his first presentation to the commission, recommending what he called ('lenses by steps') to replace the reflectors then in use, which reflected only about half of the incident light. Much to Fresnel's embarrassment, one of the assembled commissioners, Jacques Charles, recalled Buffon's suggestion. However, whereas Buffon's version was biconvex and.

Fresnel lens. in one piece, Fresnel's was plano-convex and made of multiple prisms for easier construction. With an official budget of 500 francs, Fresnel approached three manufacturers. The third, François Soleil, found a way to remove defects by reheating and remolding the glass. Arago assisted Fresnel with the design of a modified Argand lamp with concentric wicks (a concept that Fresnel attributed to Count Rumford), and accidentally discovered that fish glue was heat-resistant, making it suitable for use in the lens. The prototype, finished in March 1820, had a square lens panel 55cm on a side, containing 97 polygonal (not annular) prisms—and.

Fresnel lens. so impressed the Commission that Fresnel was asked for a full eight-panel version. This model, completed a year later in spite of insufficient funding, had panels 76cm square. In a public spectacle on the evening of 13 April 1821, it was demonstrated by comparison with the most recent reflectors, which it suddenly rendered obsolete.Soon after this demonstration, Fresnel published the idea that light, including apparently unpolarized light, consists exclusively of transverse waves, and went on to consider the implications for double refraction and partial reflection.Fresnel acknowledged the British lenses and Buffon's invention in a memoir read on 29 July 1822.

Fresnel lens. and printed in the same year. The date of that memoir may be the source of the claim that Fresnel's lighthouse advocacy began two years later than Brewster's; but the text makes it clear that Fresnel's involvement began no later than 1819.Fresnel's next lens was a rotating apparatus with eight "bull's-eye" panels, made in annular arcs by Saint-Gobain, giving eight rotating beams—to be seen by mariners as a periodic flash. Above and behind each main panel was a smaller, sloping bull's-eye panel of trapezoidal outline with trapezoidal elements. This refracted the light to a sloping plane mirror, which then reflected.

Fresnel lens. it horizontally, 7 degrees ahead of the main beam, increasing the duration of the flash. Below the main panels were 128 small mirrors arranged in four rings, stacked like the slats of a louver or Venetian blind. Each ring, shaped like a frustum of a cone, reflected the light to the horizon, giving a fainter steady light between the flashes. The official test, conducted on the unfinished on 20 August 1822, was witnessed by the Commission—and by Louis XVIII and his entourage—from 20 (mi) away. The apparatus was stored at Bordeaux for the winter, and then reassembled at Cordouan Lighthouse.

Fresnel lens. under Fresnel's supervision—in part by Fresnel's own hands. On 25 July 1823, the world's first lighthouse Fresnel lens was lit. As expected, the light was visible to the horizon, more than 20 (mi) out.The day before the test of the Cordouan lens in Paris, a committee of the Academy of Sciences reported on Fresnel's memoir and supplements on double refraction—which, although less well known to modern readers than his earlier work on diffraction, struck a more decisive blow for the wave theory of light. Between the test and the reassembly at Cordouan, Fresnel submitted his papers on photoelasticity (16 September.

Fresnel lens. 1822), elliptical and circular polarization and optical rotation (9 December), and partial reflection and total internal reflection (7 January 1823), essentially completing his reconstruction of physical optics on the transverse wave hypothesis. Shortly after the Cordouan lens was lit, Fresnel started coughing up blood.In May 1824, Fresnel was promoted to Secretary of the , becoming the first member of that body to draw a salary, albeit in the concurrent role of Engineer-in-Chief. Late that year, being increasingly ill, he curtailed his fundamental research and resigned his seasonal job as an examiner at the , in order to save his remaining.

Fresnel lens. time and energy for his lighthouse work.In the same year he designed the first "fixed" lens—for spreading light evenly around the horizon while minimizing waste above or below. Ideally the curved refracting surfaces would be segments of toroids about a common vertical axis, so that the dioptric panel would look like a cylindrical drum. If this was supplemented by reflecting (catoptric) rings above and below the refracting (dioptric) parts, the entire apparatus would look like a beehive. The second Fresnel lens to enter service was indeed a fixed lens, of third order, installed at Dunkirk by 1 February 1825. However,.

Fresnel lens. due to the difficulty of fabricating large toroidal prisms, this apparatus had a 16-sided polygonal plan.In 1825 Fresnel extended his fixed-lens design by adding a rotating array outside the fixed array. Each panel of the rotating array was to refract part of the fixed light from a horizontal fan into a narrow beam.Also in 1825, Fresnel unveiled the ('lighthouse map'), calling for a system of 51 lighthouses plus smaller harbor lights, in a hierarchy of lens sizes called "orders" (the first being the largest), with different characteristics to facilitate recognition: a constant light (from a fixed lens), one flash per.

Fresnel lens. minute (from a rotating lens with eight panels), and two per minute (16 panels).In late 1825, to reduce the loss of light in the reflecting elements, Fresnel proposed to replace each mirror with a catadioptric prism, through which the light would travel by refraction through the first surface, then total internal reflection off the second surface, then refraction through the third surface. The result was the lighthouse lens as we now know it. In 1826 he assembled a small model for use on the , but he did not live to see a full-sized version: he died on 14 July.

Fresnel lens. 1827, at the age of 39.## After Fresnel.The first stage of the development of lighthouse lenses after the death of Augustin Fresnel consisted in the implementation of his designs. This was driven in part by his younger brother Léonor—who, like Augustin, was trained as a civil engineer but, unlike Augustin, had a strong aptitude for management. Léonor entered the service of the Lighthouse Commission in 1825, and went on to succeed Augustin as Secretary.The first fixed lens to be constructed with toroidal prisms was a first-order apparatus designed by the Scottish engineer Alan Stevenson under the guidance of Léonor Fresnel,.

Fresnel lens. and fabricated by Isaac Cookson & Co. using French glass; it entered service at the Isle of May, Scotland, on 22 September 1836. The first large catadioptric lenses were made in 1842 for the lighthouses at Gravelines and Île Vierge, France; these were fixed third-order lenses whose catadioptric rings (made in segments) were one metre in diameter. Stevenson's first-order Skerryvore lens, lit in 1844, was only partly catadioptric; it was similar to the Cordouan lens except that the lower slats were replaced by French-made catadioptric prisms, while mirrors were retained at the top. The first "fully" catadioptric first-order lens, installed.

Fresnel lens. at Pointe d'Ailly in 1852, also gave eight rotating beams plus a fixed light at the bottom; but its top section had eight catadioptric panels focusing the light about 4 degrees ahead of the main beams, in order to lengthen the flashes. The first fully catadioptric lens with "purely revolving" beams—also of first order—was installed at Saint-Clément-des-Baleines in 1854, and marked the completion of Augustin Fresnel's original "Carte des Phares".Thomas Stevenson (younger brother of Alan) went a step beyond Fresnel with his "holophotal" lens, which focused the light radiated by the lamp in nearly all directions, forward or backward, into.

Fresnel lens. a single beam. The first version, described in 1849, consisted of a standard Fresnel bull's-eye lens, a paraboloidal reflector, and a rear hemispherical reflector (functionally equivalent to the Rogers mirror of 60 years earlier, except that it subtended a whole hemisphere). Light radiated into the forward hemisphere but missing the bull's-eye lens was deflected by the paraboloid into a parallel beam surrounding the bull's-eye lens, while light radiated into the backward hemisphere was reflected back through the lamp by the spherical reflector (as in Rogers' arrangement), to be collected by the forward components. The first unit was installed at North.

Fresnel lens. Harbour, Peterhead, in August 1849. Stevenson called this version a "catadioptric holophote", although each of its elements was either purely reflective or purely refractive. In the second version of the holophote concept, the bull's-eye lens and paraboloidal reflector were replaced by a catadioptric Fresnel lens—as conceived by Fresnel, but expanded to cover the whole forward hemisphere. The third version, which Stevenson confusingly called a "dioptric holophote", was more innovative: it retained the catadioptric Fresnel lens for the front hemisphere, but replaced the rear hemispherical reflector with a hemispherical array of annular prisms, each of which used "two" total internal reflections.

Fresnel lens. to turn light diverging from the center of the hemisphere back toward the center. The result was an all-glass holophote, with no losses from metallic reflections.James Timmins Chance modified Thomas Stevenson's all-glass holophotal design by arranging the double-reflecting prisms about a vertical axis. The prototype was shown at the 1862 International Exhibition in London. Later, to ease manufacturing, Chance divided the prisms into segments, and arranged them in a cylindrical form while retaining the property of reflecting light from a single point back to that point. Reflectors of this form, paradoxically called "dioptric mirrors", proved particularly useful for returning light.

Fresnel lens. from the landward side of the lamp to the seaward side.As lighthouses proliferated, they became harder to distinguish from each other, leading to the use of colored filters, which wasted light. In 1884, John Hopkinson eliminated the need for filters by inventing the "group-flashing" lens, in which the dioptric and/or the catadioptric panels were split so as to give multiple flashes—allowing lighthouses to be identified not only by frequency of flashes, but also by multiplicity of flashes. Double-flashing lenses were installed at Tampico (Mexico) and Little Basses (Sri Lanka) in 1875, and a triple-flashing lens at Casquets Lighthouse (Channel Islands).

Fresnel lens. in 1876. The example shown (right) is the double-flashing lens of the Point Arena Light, which was in service from 1908 to 1977.The development of hyper-radial lenses was driven in part by the need for larger light sources, such as gas lights with multiple jets, which required a longer focal length for a given beam-width, hence a larger lens to collect a given fraction of the generated light. The first hyper-radial lens was built for the Stevensons in 1885 by F. Barbier & Cie of France, and tested at South Foreland Lighthouse with various light sources. Chance Brothers (Hopkinson's employers).

Fresnel lens. then began constructing hyper-radials, installing their first at Bishop Rock Lighthouse in 1887. In the same year, Barbier installed a hyper-radial at Tory Island. But only about 30 hyper-radials went into service before the development of more compact bright lamps rendered such large optics unnecessary (see "Hyperradiant Fresnel lens").Production of one-piece stepped dioptric lenses—roughly as envisaged by Buffon—became feasible in 1852, when John L. Gilliland of the Brooklyn Flint-Glass Company patented a method of making lenses from pressed and molded glass. The company made small bull's-eye lenses for use on railroads, steamboats, and docks; such lenses were common in the.

Fresnel lens. United States by the 1870s. In 1858 the company produced "a very small number of pressed flint-glass sixth-order lenses" for use in lighthouses—the first Fresnel lighthouse lenses made in America. By the 1950s, the substitution of plastic for glass made it economic to use Fresnel lenses as condensers in overhead projectors. Fresnel imager Fresnel zone plate Lenticular lens Linear Fresnel reflector Prism lighting − Fresnel anidolic optics M. Born and E. Wolf, "Principles of Optics", 7th Ed., Cambridge, 1999. G.-A. Boutry, 1948, "Augustin Fresnel: His time, life and work, 1788–1827", "Science Progress", vol. 36, no. 144 (October 1948), pp. 587–604;.

Fresnel lens. jstor.org/stable/43413515. J.Z. Buchwald, 1989, "The Rise of the Wave Theory of Light: Optical Theory and Experiment in the Early Nineteenth Century", University of Chicago Press, . J. Elton, 2009, "A Light to Lighten our Darkness: Lighthouse Optics and the Later Development of Fresnel's Revolutionary Refracting Lens 1780–1900", "International Journal for the History of Engineering & Technology", vol. 79, no. 2 (July 2009), pp. 183–244; . A. Fresnel, 1822, "Mémoire sur un nouveau système d'éclairage des phares", read 29 July 1822; reprinted in Fresnel, 1866–70, vol. 3, pp. 97–126; translated by T. Tag as "Memoir upon a new system of lighthouse.

Fresnel lens. illumination", U.S. Lighthouse Society, accessed 26 August 2017; archived 19 August 2016. (Cited page numbers refer to the translation.) A. Fresnel (ed. H. de Sénarmont, E. Verdet, and L. Fresnel), 1866–70, "Oeuvres complètes d'Augustin Fresnel" (3 vols.), Paris: Imprimerie Impériale; vol. 1 (1866), vol. 2 (1868), vol. 3 (1870). T.H. Levitt, 2013, "A Short Bright Flash: Augustin Fresnel and the Birth of the Modern Lighthouse", New York: W.W. Norton, . T. Young (ed. G. Peacock), 1855, "Miscellaneous Works of the late Thomas Young", London: J. Murray, vol. 1. "The Fresnel Lens", "The Keeper's Log", Winter 1985, pp. 12–14. U.S. Coast.

Fresnel lens. Guard, "Aids to Navigation", Washington, DC: U.S. Government Printing Office, 1945. U.S. Coast Guard, "Lighthouses, Lenses, Illuminants, Engineering, & Augustin Fresnel: A Historical Bibliography on Works Published Through 2007". United States Lighthouse Society, especially "Fresnel Lenses". W.A. Britten, "The Fresnel lens" (with photographs). J. Francis, "Fresnel Lens - Maxwell Simulation", 13 April 2009. J. Hare, "How the Fresnel lens works" (5-minute video), Vega Science Trust, 2008.


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Cirsium vulgare. Cirsium vulgare, the spear thistle, bull thistle, or common thistle, is a species of the Asteraceae genus "Cirsium", native throughout most of Europe (north to 66°N, locally 68°N), Western Asia (east to the Yenisei Valley), and northwestern Africa (Atlas Mountains). It is also naturalised in North America, Africa, and Australia and is an invasive weed in some areas. It is the national flower of Scotland.The plant provides a great deal of nectar for pollinators. It was rated in the top 10 for most nectar production (nectar per unit cover per year) in a UK plants survey conducted by the AgriLand.

Cirsium vulgare. project which is supported by the UK Insect Pollinators Initiative. Marsh thistle, "Cirsium palustre", was ranked in first place while this thistle was ranked in sixth place. It also was a top producer of nectar sugar in another study in Britain, ranked third with a production per floral unit of (2300 ± 400 μg).## Description.It is a tall biennial or short-lived monocarpic thistle, forming a rosette of leaves and a taproot up to 70 cm long in the first year, and a flowering stem 1–1.5 m tall in the second (rarely third or fourth) year. It can grow up to.

Cirsium vulgare. 1.8 (m) tall. It sometimes will function as an annual, flowering in the first year. The stem is winged, with numerous longitudinal spine-tipped wings along its full length. The leaves are stoutly spined, grey-green, deeply lobed; the basal leaves grow up to 30 (cm) long, with smaller leaves on the upper part of the flower stem; the leaf lobes are spear-shaped (from which the English name derives). The inflorescence is 2.5–5 cm diameter, pink-purple, with all the florets of similar form (no division into disc and ray florets). The seeds are 5 mm long, with a downy pappus, which assists.

Cirsium vulgare. in wind dispersal. As in other species of "Cirsium" (but unlike species in the related genus "Carduus"), the pappus hairs are feathery with fine side hairs.## Ecology.Spear thistle is often a ruderal species, colonising bare disturbed ground, but also persists well on heavily grazed land as it is unpalatable to most grazing animals. Nitrogen-rich soils help increase its proliferation. The flowers are a rich nectar source used by numerous pollinating insects, including honey bees, wool-carder bees, and many butterflies. The seeds are eaten by goldfinches, linnets and greenfinches. The seeds are dispersed by wind, mud, water, and possibly also by.

Cirsium vulgare. ants; they do not show significant long-term dormancy, most germinating soon after dispersal and only a few lasting up to four years in the soil seed bank. Seed is also often spread by human activity such as hay bales.## Weed status.Spear thistle is designated an "injurious weed" under the UK Weeds Act 1959, and a noxious weed in Australia and in nine US states. Spread is only by seed, not by root fragments as in the related creeping thistle "C. arvense". It is best cleared from land by hoeing and deep cutting of the taproot before seeds mature; regular cultivation.

Cirsium vulgare. also prevents its establishment.Despite this label, the plant has beneficial qualities beyond its very high nectar production. It produces seeds eaten by the American goldfinch, down from seed pods that is used by those birds for nesting material, and serves as a host plant for the Painted lady butterfly. The monarch butterfly and other larger-sized butterflies can feed easily from the flowers due to their large size. Some farmers, due to its usefulness as part of the natural food chain, may find it useful to allow it to grow in beetle banks. The supports for pollinators and pest-eating birds could.

Cirsium vulgare. outweigh its drawbacks. In areas where it does not form monocultures it may also be welcome as a part of a meadow landscape.## Other names.Common names include bull thistle, Scots, Scottish, or Scotch thistle, and common thistle.## Uses.The stems can be peeled (removing their spiny surfaces) and then steamed or boiled. The tap roots can be eaten raw or cooked, but are only palatable on young thistles that have not yet flowered. The dried florets steeped in water are used in rural Italy for curdling goats' milk in preparation for making cheese.## In culture.The plant features in some Scottish ceremonies.

Cirsium vulgare. such as the "Riding of the Marches", held annually in Langholm in July. The 1992 specimen measured six feet in lengthSpear thistle is also the emblem of Newton Regis in England.


Question: What is the closest upper taxonomy of this fish?

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Mycteroperca bonaci. Mycteroperca bonaci, the black grouper, black rockfish or marbled rockfish, is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. Other fish are sometimes called the black grouper including the similar gag grouper ("Mycteroperca microlepis"), the misty grouper ("Hyporthodus mystacinus"), and the critically endangered Warsaw grouper ("Epinephelus nigritus"). This species is found in the western Atlantic Ocean from the northeastern United States to Brazil.## Description."Myctoperca bonaci" has an oblong, laterally compressed body with a standard length which is 3.3 to 3.5 times.

Mycteroperca bonaci. its depth. It has an evenly rounded preopercle with no incisions or lobes at its angle. The dorsal fin contains 11 spines and 15-17 soft rays while the anal fin has 3 spines and 11-13 soft rays, both fins having rounded margins. The caudal fin is truncate to emarginate, althoughit may be convex if spread widely. This species has an overall t’s an olive grey colour and is marked with dark blotches and brassy hexagonal spots over the head and flanks. The pectoral fins are sooty brown, fading to orange towards the margin; the soft rayed part of the dorsal.

Mycteroperca bonaci. fin and the anal fin, as well as the forward edge of the pelvic fin have a dark margin. This fish attains a maximum total length of 150 (cm), although they are more common at around 70 (cm) and a maximum published weight of 100 (kg).## Distribution."Mycteroperca bonaci" is found in the western Atlantic where its range extends from Cape Canaveral in Florida and Bermuda south to the Bahamas, into the Gulf of Mexico as far north as Alabama and from southern Texas along the coast of Mexico and Cuba. It occurs throughout the Caribbean Sea, along the coast of.

Mycteroperca bonaci. South America to Santa Catarina in Brazil. Its range extends to the Brazilian islands of Trinidade and Fernando de Noronha. There is a gap in its distribution along the northern coast of South America between Paramaribo in Suriname and Maranhao in Brazil. Occurrences in United States waters north to Massachusetts are juveniles and therefore considered vagrants.## Habitat and biology."Mycteroperca bonaci" occurs over rocky bottoms and coral reefs at depths of 10 to 30 (m), however in the eastern Gulf of Mexico it is normally encountered at depths of more than 30 (m). It is usually a solitary species, the adults.

Mycteroperca bonaci. feeding mainly on fishes, such as grunts, snapper and herrings, and the juveniles feed on crustaceans. Black groupers have been recorded forming seasonal feeding aggregations along the outer continental shelf off Brazil, these coincide with spawning aggregations of some fish species the groupers prey on. They are monandric protogynous hermaphrodites and form spawning aggregations which have been reported from in the Gulf of Mexico and Caribbean Sea. Females attain sexual maturity at around 5years old and at a length of around 82.6 (cm) and the change of sex to males occurs when they are around 15 years old and at.

Mycteroperca bonaci. a mean length of 121.4 (cm).## Predators and parasites.The recorded predators of "Mycteroperca bonaci" include sandbar shark ("Carcharhinus plumbeus") and great hammerhead ("Sphyrna mokarran") while they may also be prey for great barracuda ("Sphyraena barracuda") and moray eels. Black groupers are hosts to a variety of common parasites which include endoparasites affecting stomach and intestines and ectoparasites which live on its skin.## Taxonomy."Mycteroperca bonaci" was first formally described as "Serranus bonaci" in 1860 by the Cuban zoologist Felipe Poey (1799-1891) with Cuba being given as the type locality.## Utilisation."Mycteroperca bonaci" is quite tasty and an important food fish. It is.

Mycteroperca bonaci. fished for sale and for sport.## Conservation."Mycteroperca bonaci" is an IUCN Red List near threatened species, vulnerable to increases in exploitation because it is a relatively slow breeder.## External links.


Question: What is the closest upper taxonomy of this plant?

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Aegiceras corniculatum. Aegiceras corniculatum, commonly known as black mangrove, river mangrove, goat's horn mangrove, or khalsi, is a species of shrub or tree mangrove in the primrose family, Primulaceae, with a distribution in coastal and estuarine areas ranging from India through South East Asia to southern China, New Guinea and Australia.## Description."Aegiceras corniculatum" grows as a shrub or small tree up to 7 (m) high, though often considerably less. Its leaves are alternate, obovate, 30 – 100 (mm) long and 15 – 50 (mm) wide, entire, leathery and minutely dotted. Its fragrant, small, white flowers are produced as umbellate clusters of 10–30,.

Aegiceras corniculatum. with a peduncle up to 10 mm long and with pedicels 10 – 18 (mm) long. The calyx is 2 – 4 (mm) long and corolla 4 - 6 (mm) long. The fruit is curved and cylindrical or horn-shaped, light green to pink in colour and 20 – 75 (mm) long. It grows in mud in estuaries and tidal creeks, often at the seaward edge of the mangrove zone.The species is of interest to many moths, including species from the genera "Anarsia", "Archips" and "Phyllocnistis", as well as the species "Darna trima", "Gonodontis clelia" and "Neurozerra conferta".## Medicinal uses."Aegiceras corniculatum.

Aegiceras corniculatum. extract has analgesic properties which supports a fight against diabetes. The stems of the plant contain up to seven compounds, including: 2-methoxy-3-nonylresorcinol, 5-O-ethylembelin, 2-O-acetyl-5-O-methylembelin, 3,7-dihydroxy-2,5-diundecylnaphthoquinone, 2,7-dihydroxy-8-methoxy-3,6-diundecyldibenzofuran-1,4-dione, 2,8-dihydroxy-7-methoxy-3,9-diundecyldibenzofuran-1,4-dione (6), and 10-hydroxy-4-O-methyl-2,11-diundecylgomphilactone.


Question: What is the closest parent taxonomy of this plant?

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Bolbitius titubans. Bolbitius titubans, also known as Bolbitius vitellinus, is a widespread species of mushroom found in America and Europe. It grows chiefly on dung or heavily fertilized soil, and sometimes on grass. It is nonpoisonous.## Description.The mushroom cap is between 1.5–7 cm, and grows from egg-shaped when young to broadly convex, finally ending up nearly flat. The cap's color starts yellow or bright yellow, and fades to whitish or greyish with age. The gills are free from the stem or narrowly attached to it, are fragile and soft, and fade from whitish or pale yellowish to rusty cinnamon with age. The.

Bolbitius titubans. stem is 3–12 cm tall and 2–6 mm wide, is whitish-yellow with a fine mealy powdering, and is very delicate. The spores are brown, elliptical, and smooth.The mushroom's edibility is unknown but it is too small to be worthwhile.A similar species is "Bolbitius aleuriatus".


Question: What is the closest parent taxonomy of this animal?

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Groundhog. The groundhog ("Marmota monax"), also known as a woodchuck, is a rodent of the family Sciuridae, belonging to the group of large ground squirrels known as marmots. The groundhog is a lowland creature of North America; it is found through much of the Eastern United States, across Canada and into Alaska. It was first scientifically described by Carl Linnaeus in 1758.The groundhog is also referred to as a chuck, wood-shock, groundpig, whistlepig, whistler, thickwood badger, Canada marmot, monax, moonack, weenusk, red monk, land beaver, and, among French Canadians in eastern Canada, siffleux. The name "thickwood badger" was given in the.

Groundhog. the animal, "wuchak". The similarity between the words has led to the popular tongue-twister:How much wood would a woodchuck chuckif a woodchuck could chuck wood?A woodchuck would chuck all the wood he couldif a woodchuck could chuck wood!## Distribution and habitat.The groundhog prefers open country and the edges of woodland, and is rarely far from a burrow entrance. "Marmota monax" has a wide geographic range. It is typically found in low-elevation forests, small woodlots, fields, pastures, and hedgerows. It constructs dens in well-drained soil, and most have summer and winter dens. Human activity has increased food access and abundance, allowing.


Question: What is the closest upper taxonomy of this bird?

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Gannet. Gannets are seabirds comprising the genus Morus in the family Sulidae, closely related to boobies.Gannets are large white birds with yellowish heads; black-tipped wings; and long bills. Northern gannets are the largest seabirds in the North Atlantic, having a wingspan of up to 2 (m). The other two species occur in the temperate seas around southern Africa, southern Australia, and New Zealand.## Etymology."Gannet" is derived from Old English "ganot" meaning "strong or masculine", ultimately from the same Old Germanic root as "gander".## Taxonomy."Morus" is derived from Ancient Greek "moros" "stupid" or "foolish" due to lack of fear shown by breeding.

Gannet. gannets and boobies, allowing them to be easily killed.## Behaviour.## Hunting.Gannets hunt fish by diving into the sea from a height of 30 (m) and pursuing their prey underwater, and have a number of adaptations: They have no external nostrils; they are located inside the mouth, instead. They have air sacs in the face and chest under the skin, which act like bubble wrap, cushioning the impact with the water. The position of their eyes is far enough forward on the face for binocular vision, allowing them to judge distances accurately.Gannets can achieve speeds of 100 (km/h) as they strike.

Gannet. the water, enabling them to catch fish at a much greater depth than most airborne birds.The gannet's supposed capacity for eating large quantities of fish has led to "gannet" becoming a description of somebody with a voracious appetite.## Mating and nesting.Gannets are colonial breeders on islands and coasts, normally laying one chalky-blue egg. They lack brood patches and use their webbed feet to warm the eggs. They reach maturity around 5 years of age. First-year birds are completely black, and subsequent subadult plumages show increasing amounts of white.## Northern gannets.The most important nesting ground for northern gannets is the United.


Question: In which year did this building officially open?

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Saxon Railway Museum. The Saxon Railway Museum ("Sächsisches Eisenbahnmuseum" or "SEM") is located in Chemnitz, in the state of Saxony, eastern Germany. It is situated on the site of the former locomotive depot ("Bahnbetriebswerk" or "Bw") for goods train locomotives in the district Hilbersdorf.After the locomotive depot was closed in 1992, the society moved into the buildings which were protected as historical monuments. As a result, the museum has two roundhouses with 20 (m) turntables. In addition there are coaling and sanding facilities, water cranes, a working jack for inspection pits and a range of other equipment found in an operational depot.The exhibition.


Question: What is the spore print color of this plant?

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Morchella esculenta. pale brownish cream, yellow to tan or pale brown to grayish brown. The edges of the ridges are usually lighter than the pits, and somewhat oval in outline, sometimes bluntly cone-shaped with a rounded top or more elongate. Caps are hollow, attached to the stem at the lower edge, and typically about 2 – 7 (cm) broad by 2 – 10 (cm) tall. The flesh is brittle. The stem is white to pallid or pale yellow, hollow, and straight or with a club-shaped or bulbous base. It is finely granular overall, somewhat ridged, generally about 2 – 9 (cm) long.

Morchella esculenta. by 2 – 5 (cm) thick. In age it may have brownish stains near the base. It has a passing resemblance to the common stinkhorn ("Phallus impudicus"), for which it is sometimes mistaken. Yellow morels are often found near wooded areas. Centipedes sometimes make their home inside these morels; infested morels usually have a hole in the top.## Microscopic characteristics.The spores range from white to cream to slightly yellow in deposit, although a spore print may be difficult to obtain given the shape of the fruit body. The spores are formed in asci lining the pits—the ridges are sterile. They.


Question: What is the oldest age of this animal?

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Wild boar. Eastern Europe, males average 110 - 130 (kg) in weight, 95 (cm) in shoulder height and 160 (cm) in body length, while females weigh 95 (kg), reach 85 - 90 (cm) in shoulder height, and reach 145 (cm) in body length. In Western and Central Europe, the largest males weigh 200 (kg) and females 120 (kg). In Northeastern Asia, large males can reach brown bear-like sizes, weighing 270 (kg) and measuring 110 - 118 (cm) in shoulder height. Some adult males in Ussuriland and Manchuria have been recorded to weigh 300 - 350 (kg) and measure 125 (cm) in shoulder.


Question: Which body of water is this place located in or next to?

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Front de Seine. Front de Seine is a development in the district of Beaugrenelle in Paris, France, located along the river Seine in the 15th arrondissement at the south of the Eiffel Tower. It is, with the 13th arrondissement, one of the few districts in the city of Paris containing highrise buildings, as most have been constructed outside the city (notably in La Défense).The Front de Seine district is the result of an urban planning project from the 1970s. It includes about 20 towers reaching nearly 100 m of height built all around an elevated esplanade. That esplanade is paved with frescos that.

Front de Seine. can be seen only from the elevated floors of the towers. As opposed to Italie 13, the design of the towers is much more varied. The Hôtel Novotel Paris-Tour Eiffel (formerly known as Hôtel Nikkō), for instance, has red-encircled windows, while the Tour Totem consists of a stack of several glazed blocks.A newly redesigned shopping centre, the Centre commercial Beaugrenelle opened in 2013.Furthermore, while 13th arrondissement towers are predominantly residential and La Défense towers are predominantly commercial, the towers of the Front de Seine are of mixed commercial and residential use. Tour Avant-Seine (1975): 98 m, 32 storeys. Tour Mars.

Front de Seine. (1974): 98 m, 32 storeys. Tour Paris Côté Seine (1977): 98 m, 32 storeys. Tour Seine (1970): 98 m, 32 storeys Tour Espace 2000 (1976): 98 m, 31 storeys. Tour Évasion 2000 (1971): 98 m, 31 storeys. Hôtel Novotel Paris-Tour Eiffel (1976): 98 m, 31 storeys. Tour Totem (1979): 98 m, 31 storeys. Tour Beaugrenelle (1979): 98 m, 30 storeys. Tour Panorama (1974): 98 m, 30 storeys. Tour Perspective 1 (1973): 98 m, 30 storeys. Tour Perspective 2 (1975): 98 m, 30 storeys. Tour Reflets (1976): 98 m, 30 storeys. Tour Rive Gauche (1975): 98 m, 30 storeys. Tour Keller.

Front de Seine. (1970): 98 m, 29 storeys. Tour Cristal (1990): 98 m, 27 storeys. 79 quai André Citroën: 24 storeys. Tour Mirabeau (1972): 18 storeys. Immeuble le Village (1973): 17 storeys. Bureaux Hachette Livre (1969): 12 storeys. Tour Mercure (1973): 12 storeys.Other structures Cheminée du Front de Seine (1971): 130 meters Italie 13 La Défense List of tallest structures in Paris Front de Seine website.


Question: Where is this bird native to?

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Australian brushturkey. The Australian brushturkey or Australian brush-turkey or gweela ("Alectura lathami"), also frequently called the scrub turkey or bush turkey, is a common, widespread species of mound-building bird from the family Megapodiidae found in eastern Australia from Far North Queensland to Eurobodalla on the South Coast of New South Wales. The Australian brushturkey has also been introduced to Kangaroo Island in South Australia. It is the largest extant representative of the family Megapodiidae, and is one of three species to inhabit Australia.Despite its name and their superficial similarities, the bird is not closely related to American turkeys, nor to the Australian.

Australian brushturkey. bustard, which is also known as the bush turkey. Its closest relatives are the wattled brushturkey, Waigeo brushturkey, and malleefowl.## Biology.## Description.It is a large bird with black feathers and a red head. Its total length is about 60 – 75 (cm) and a wingspan of about 85 (cm). The subspecies "A. l. purpureicollis" from the northern Cape York Peninsula is smaller than the more widespread nominate subspecies. It has a prominent, fan-like tail flattened sideways, and its plumage is mainly blackish, but with a bare red head, and a yellow (in the nominate subspecies) or purple wattle (in "A.

Australian brushturkey. l. purpureicollis"). The males' wattles become much larger during breeding season, often swinging from side to side as they run. The males' heads and wattles also become much brighter during the breeding and nesting season. The underside of the body is sprinkled with white feathers, more pronounced in older birds. The brushturkey is a clumsy flyer and cannot fly long distances, only taking to the air when threatened by predators or to roost in trees at night and during the heat of the day.## Nesting.They build large nests on the ground made of leaves, other compostable material, and earth, 1.

Australian brushturkey. to 1.5 (m) high and up to 4 (m) across. Mound-building is done by a dominant male, and visited by a succession of local females, for mating and egg-laying. The male works tirelessly, collecting material from all around, and also diligently repelling rival males, which are keen to usurp his position. The effort involved eventually wears him down, and he will ultimately be defeated by a new king. The eggs are very large (90 × 45 mm), and the young are fully fledged on hatching. They can fly within hours, as soon as the feathers are dry. The eggs are.

Australian brushturkey. hatched by the heat of the composting mound, the temperature of which is regulated by adding or removing material to maintain the temperature in the 33 – 35 (C) incubation temperature range. The Australian brushturkey checks the temperature by sticking its beak into the mound. Like some reptiles, incubation temperature affects the sex ratio of chicks, but the mechanism is different between reptiles and these birds, with reptiles exhibiting temperature-dependent sex determination, and megapodes exhibiting temperature-dependent embryo mortality. The sex ratio in brushturkeys is equal at incubation temperatures of 34 °C, but results in more males when cooler and more.

Australian brushturkey. females when warmer (p=0.035). Whether the parents use this to manipulate the sex of their offspring by, for instance, selecting the nesting site accordingly, is unclear. Warmer incubation also results in heavier, fitter chicks (p<0.0001), but how this is linked to sex is also unknown.The same nesting site is frequently used year after year, with the old nests being added to each breeding season. The average clutch of eggs is between 16 and 24 large white eggs, which are laid September to March. Sometimes, up to 50 eggs laid by several females may be found in a single mound. The.

Australian brushturkey. eggs are placed in a circle roughly 60 – 80 (cm) down, 20 – 30 (cm) apart, always with the large end up. The newly hatched young dig themselves out of the mound and then have to care for themselves.## Predators and human interactions.Brushturkey eggs are a favourite food of goannas, snakes, and dingoes and dogs, though brushturkeys were also a staple of Aboriginal Australians. Often, goannas exhibit wounds on their tails from having been pecked by brushturkeys that ferociously chase them away from their nests. Chicks are left to fend for themselves from their hatching so they have a.

Australian brushturkey. high death rate.In situations where they come into contact with humans, such as picnic areas in national parks and suburban gardens, brushturkeys exhibit little fear and often boldly attempt to steal food from tables and raid compost bins. Brush-turkeys in more urbanized areas show reduced fear compared to birds in national parks. They nest in suburban gardens, and in search of material for their nests remove enormous amounts of mulch from gardens.## Habitat.The Australian brushturkey inhabits rainforests and wet sclerophyll forests, but can also be found in drier scrubs and open areas. In the northern part of its range, the.

Australian brushturkey. Australian brushturkey is most common at higher altitudes, but individuals move to the lowland areas in winter. In the south, it is common in both mountain and lowland regions.Brushturkeys are now common in urban environments and can be found in backyards in both Brisbane and Sydney.The range of the Australian brushturkey extends from the top of Cape York to approximately the area around Wollongong.## Population.Brushturkeys are fairly common presently, but in the 1930s, the bird was supposed to be approaching extinction.## Human interaction.The Australian brushturkey can damage gardens when raking up the ground looking for food. It can also cause.

Australian brushturkey. extensive damage to food crops. The Department of Environment, Climate Change, and Water provides hints for living with brushturkeys in urban environments.They are sometimes hunted for food, including as part of the diet by Aboriginal Australians. Their eggs, which weigh on average 180 (g), are also sometimes eaten.The Australian brushturkey is fully protected in Queensland. Under the Nature Conservation Act 1992 it is an offence to harm brush turkeys. For a class 1 offence it is 3000 penalty units or two years imprisonment. For a class 4 offence it is 100 penalty units or A$13,345.00. In New South Wales, shooting.

Australian brushturkey. a brush turkey has resulted in fines of up to A$22,000, under the Biodiversity Conservation Act. Edden, R. and Boles, W.E. (1986). "Birds of the Australian Rainforests". Sydney: Reed Books. Marchant, S. and Higgins, P.J. (eds.) (1993). "Handbook of Australian New Zealand and Antarctic Birds". Vol. 2: "Raptors to Lapwings". Melbourne: Oxford University Press. Olsen, P., Crome, F. and Olsen, J. (1993). "The Birds of Prey and Ground Birds of Australia". Sydney: Angus and Robertson, and the National Photographic Index of Australian Wildlife. Australian Brush-turkey videos, photos & sounds on the Internet Bird Collection Deterring brush turkeys – New South.

Australian brushturkey. Wales Government Factsheets — Brushturkey.


Question: What is the closest upper taxonomy of this insect?

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American carrion beetle. The American carrion beetle ("Necrophila americana", formerly "Silpha americana") is a North American beetle of the family Silphidae. It lays its eggs in, and its larvae consume, raw flesh (particularly that of dead animals) and fungi. The larvae and adults also consume fly larvae and the larvae of other carrion beetles that compete for the same food sources as its larvae.## Range.The beetle lives in North America east of the Rocky Mountains, with its southern boundary from eastern Texas to Florida and the northern boundary from Minnesota to southeastern Canada including New Brunswick and Maine.## Appearance.Adults are 12 to 22.


Question: What is the closest parent taxonomy of this bird?

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Harris's sparrow. Harris's sparrow ("Zonotrichia querula") is a large sparrow. Their breeding habitat is the north part of central Canada (primarily the Northwest Territories and Nunavut, ranging slightly into northern Manitoba and Saskatchewan), making it Canada's only endemic breeding bird. In the winter they migrate to the Great Plains states of the United States, from southern South Dakota to central Texas. The common name of this species commemorates the American amateur ornithologist Edward Harris (1799–1863).## Description.This species is the largest of the sparrows in the family Passerellidae, though other superficially dissimilar species in the family may slightly exceed them in size. They.

Harris's sparrow. Urban Olsson. Houghton Mifflin (1995). . Norment, C. J. Ph.D. (2007). "Return to Warden's Grove: Science, desire, and the lives of sparrows". Iowa City, IA: University of Iowa Press. Norment, C. J. and S. A. Shackleton. 1993. "Harris’s Sparrow (Zonotrichia querula)". In "The Birds of North America", No. 64 (A. Poole and F. Gill, Eds.). Philadelphia: The Academy of Natural Sciences; Washington, D.C.: The American Ornithologists’ Union.Harris's sparrow species account - Cornell Lab of OrnithologyHarris's sparrow - "Zonotrichia querula" - USGS Patuxent Bird Identification InfoCenterHarris's sparrow photo gallery VIREO.


Question: What is the closest upper taxonomy of this insect?

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Eastern tailed-blue. The eastern tailed-blue or eastern tailed blue ("Cupido comyntas"), also known as "Everes comyntas", is a common butterfly of eastern North America. It is a small butterfly that is distinguished from other blues in its range by the small thin tail.## Description.Males are generally blue on the upperside of their wings while females are lighter blue to brown or charcoal in coloring, but there are also varieties of purple and pink found in both sexes. The underside coloration ranges from bluish white to tan. There are two or three (outermost one often faint) black to orange chevron-shaped spots on the.