Part 3 -- Part 2

Part 3 -- Part 2 - removed recently. A lot of the islands...

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April 28, 2005 In the Antarctic, the entire food web is sustained by krill. Kelp gull is the only species of gull in the Antarctic Galapagos: The animals are extraordinarily friendly because they aren’t afraid of people since there aren’t people with guns/poachers. The Galapagos belong to Ecuad~or and are 640 miles off the coast. They cover an area of ~ 280 X 140 miles. 13 larger islands, 6 smaller ones. Appeared 3-5 million years ago (very young) and form the Galapagos platform, from which they arose. They are essentially huge submarine volcanoes, geologically similar to the Hawaiian islands. There have been 53 recorded eruptions, last one in 1984. They usually result in huge lava flows of basalt like material. Climate: generally speaking, quite dry. Great varation in rainfall depending on island, altitude, etc. Unique combination of cool water, warm land, and no natural predators on land. There have been a few introduced predators like dogs and cats, but have been
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Unformatted text preview: removed recently. A lot of the islands are deserts, and if you get up high enough you get cloud forests. Woorlands: boggy areas that have lots of mosses. Plants: very few are common to Ecuador. Total in islands, about 522 different species, where as Ecuador has 20,000 species of plants. 40% of the plants are endemic, meaning they evolved in the Galapagos and 190 species have been introduced into the Galapagos. Some plants got there through: 59% birds, 32% wind, 9% sea rafting. Animals: Two big groups 1) reptiles, 22 species. Only place in world with marine lizard, marine iguana. 2) Birds: 19 species of sea birds that are native to islands. There are no amphibians, few mammals on land, rice rats, and 2 species of bats. Most mammals are marine. Galapagos (or Darwin) finches. 13 species of these finches. Woodpecker finch first animal ever described as a tool-user. Main predator on young sea lions is the Galapagos hawk....
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This note was uploaded on 04/13/2009 for the course BISC 102Lxg taught by Professor Kiefer,bakus during the Spring '06 term at USC.

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