Species richness is a measure of the number of different species living in a specific area. A list of each species is compiled and the total number of species can be calculated.It is necessary to accurately identify organisms.Usually scientists use dichotomous keys which use a series of Yes/No questions about the feature of organisms to identify organisms.
Species Richness
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Specification: OCR Biology A (H020), AS-level, 4.2.1 Biodiversity. Topic: Biodiversity.
Key terms in this lesson
- dichotomous key
- An identification tool consisting of a series of paired questions, each with two possible answers, that lead to the identification of an organism.
More in Biodiversity
- Non-Random Sampling
- Reliability
- Sampling Animals
- Sampling Plants
- Species Evenness
- Frame Quadrats
- Estimating Population Size
- Measuring Abiotic Factors
All 33 lessons in Biodiversity · All OCR AS-level Biology topics