How Have Changing Sea-Levels Influenced Evolution on the Galapagos Islands? (video) Wiley Share Print E-Mail Loading video... Caption This movie is a simple 0 m to -210 m geographical loop sequence at 5 m increments. Important features are the substantial gaps between Galapagos' "core" islands even at -100 m. However, below c. -130 m the various islands begin coalescing. Credit Video from: "Exploring the combined role of eustasy and oceanic island thermal subsidence in shaping biodiversity on the Galápagos" by Jason R. Ali and Jonathan C. Aitchison from the Journal of Biogeography. Usage Restrictions Video credit. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.