ECOSYSTEM ECOLOGY II PP. 435-439.

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ECOSYSTEM ECOLOGY II PP. 435-439

PROPERTIES OF AN ECOSYSTEM Species Richness Species Evenness Species- Area Effect

1. Species Richness: # of different types of species Varies with latitude (closer to equator the more species) More sun, better climate stability

2. Species evenness: the abundance of each species

3. Measuring biodiversity High richness and evenness = High biodiversity ↑species richness and ↑ evenness: ↑ stability (ability to withstand disturbances in the ecosystem)

4. Species- Areas Effect: larger areas contain more species than smaller areas

Sites A, C, and D have more richness Sites A and C has the most evenness Which site has the highest biodiversity?