Island Biogeography - Distribution of Life on Earth
Island biogeography explores the distribution of life on earth, focusing on two main types of islands: continental islands like England and oceanic islands such as Hawaii. Dive into the unique ecosystems of Juan Fernandez, Galapagos, and Hawaiian Islands, home to diverse species like the Juan Fernandez Firecrown and Hawaiian Monk Seal.
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Presentation Transcript
Island Biogeography Biogeography: = Distribution of life on earth.
Islands: Continental Islands England (0.3 Mya), Japan, Sri Lanka, Madagascar (160 Mya) Oceanic Islands: Hawaii, St. Helena, Juan Fernandez, Galapagos
Hawaii Galapagos St Helena Juan Fernandez Archipelago
Juan Fernandez Archipelago
Masafuera Ravadito
Compared to other areas of the world, life on oceanic islands is UNBALANCED. Native Missing some Plants Land mammals some Birds Reptiles some Insects Amphibians Freshwater fish Good Colonizers
Three facts about oceanic islands: 1. They are missing groups of species that live on continents and continental islands 2. The groups that ARE found on oceanic islands are replete with many similar species. 3. Often related, but not identical, to species living on nearby continents.
