ECOSYSTEM ECOLOGY II

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ECOSYSTEM ECOLOGY II

• PP. 435-439

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PROPERTIES OF AN ECOSYSTEM

• Species Richness
• Species Evenness
• Species- Area Effect

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

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• 2. Species evenness the abundance of each
  species

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• 3. Measuring biodiversity
• High richness and evenness High biodiversity
• ?species richness and ? evenness
• ? stability (ability to withstand disturbances in
  the ecosystem)

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

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