class_ecosystems - Islands, ecosystems and productivity...

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Unformatted text preview: Islands, ecosystems and productivity Quiz review Homework review Islands - concepts Island size vs. Number of species Distance from a source vs. number of species Species diversity equilibrium Immigration and Extinction Rates Number of species in island Rate of immigration or extinction Equilibrium number I m m i g r a t i o n E x t i n c t i o n Effect of Island Size Number of species on island Rate of immigration or extinction Small island Large island I m m i g r a t i o n ( s m a l l i s l a n d ) E x t i n c t i o n ( s m a l l i s l a n d ) I m m i g r a t i o n ( l a r g e i s l a n d ) E x t i n c t i o n ( l a r g e i s l a n d ) Biomes Biomes What are the Two main factors whose combination determines a biome? Temperature and precipitation! Biomes change with latitude and altitude. Changing diversity in time Ecological succession: Predictable and orderly changes in the composition of a community. Changing diversity in time Primary succession: Begins in areas where no soil is initially present (volcanoes, receding glaciers). Changing diversity in time Ecological succession...
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This note was uploaded on 01/30/2012 for the course BIO 311D taught by Professor Reichler during the Spring '08 term at University of Texas at Austin.

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class_ecosystems - Islands, ecosystems and productivity...

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