Geo2:Chapter 14

Biodiversity

a number, variety and variability of living organisms
Species richness

a number of different species in an area
Biodiversity and climate (latitude and elevation)

-Biodiversity increases toward low latitudes(equator), warmer
Peninsula effect
- -species diversity decreases toward the tip of the peninsula
- -species richness decreases toward higher elevations
The role of habitat diversity

-Species diversity is positively correlated with habitat diversity
Island biogeography

-species richness of islands is strongly correlated with island size
Oceanic island

never connected to the mainland
Landbridge island

was connected to the mainland during the Ice age
species relaxation

decline in species richness when a region is cut off from a larger landmass

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dante01

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Geo2:Chapter 14

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study

Updated

2013-03-13T08:52:05Z

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