poe_commEcopptx[1]

poe_commEcopptx[1] - Abiotic and Biotic Factors infuence...

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Unformatted text preview: Abiotic and Biotic Factors infuence structure And dynamics o¡ aquatic biomes Biome-major ecological associations that occupy broad geographic regions o¡ land or water. How do we see a response? A couple of measures: Diversity- α Diversity Number of species in a community β Diversity Change in the number of species Compare: Areas Time*** Species 1 98 Plant Species 41 Animal Species α Diversity=139 Species 2 167 Plant Species 92 Animal Species α Diversity=259 β Diversity =(259+139)-19=379 They Share: 10 Plant Species 9 Animal Species Species 1 Time 1 98 Plant Species 41 Animal Species α Diversity=139 Species 1 Time 2 167 Plant Species 92 Animal Species α Diversity=259 β Diversity =(259+139)-19=379 They Share: 10 Plant Species 9 Animal Species So, something happened… Many of the species present at time 1 are gone by time 2… Did This Change the Ecosystem??? There can be new species so the total of species remains the same!...
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This note was uploaded on 09/15/2011 for the course BIOL 313 taught by Professor Staff during the Spring '11 term at S.F. State.

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poe_commEcopptx[1] - Abiotic and Biotic Factors infuence...

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