Species evenness refers to how close in numbers the populations of each species in an environment are.Species richness is the total count of different species within a specific biological community It is a measure of biodiversity. However, it does not account for the population sizes or distribution of those species.Species evenness measures the relative abundance of each species, and describes how evenly the different species in a community or ecosystem are distributed in terms of population size.
Species Evenness
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Specification: OCR Biology A (H020), AS-level, 4.2.1 Biodiversity. Topic: Biodiversity.
Key terms in this lesson
- species richness
- The number of different species present in a particular area or community.
More in Biodiversity
- Reliability
- Sampling Animals
- Sampling Plants
- Species Richness
- Frame Quadrats
- Estimating Population Size
- Measuring Abiotic Factors
- Simpson's Index of Diversity
All 33 lessons in Biodiversity · All OCR AS-level Biology topics