Biology / Bio 3701 · Atom · ~20 seconds
Species Richness and Species Diversity
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Species richness counts the distinct species in a community; species diversity combines richness with evenness, how equally individuals distribute across species.
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Two communities with equal richness can differ in diversity if one is dominated by a single species and the other is even.
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A high species count alone does not guarantee diversity — uneven abundance can lower it at constant richness.