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  1. Duke University. Strictly speaking, species diversity is the number of different species in a particular area (species richness) weighted by some measure of abundance such as number of individuals or biomass. However, it is common for conservation biologists to speak of species diversity even when they are actually referring to species richness.

  2. Species diversity is the number of different species that are represented in a given community (a dataset). The effective number of species refers to the number of equally abundant species needed to obtain the same mean proportional species abundance as that observed in the dataset of interest (where all species may not be equally abundant).

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  4. 6 days ago · Biodiversity, the variety of life found in a place on Earth or, often, the total variety of life on Earth. A common measure of this variety, called species richness, is the count of species in an area. Biodiversity encompasses the genetic variety within each species and the variety of ecosystems that species create.

  5. Mar 11, 2024 · Bio diversity refers to every living thing, including plants, bacteria, animals, and humans. Scientists have estimated that there are around 8.7 million species of plants and animals in existence. However, only around 1.2 million species have been identified and described so far, most of which are insects.

  6. Sep 25, 2023 · Species Diversity. Scientists accept that the term biodiversity generally describes the number and kinds of species in a location or on the planet. This is known as species diversity. Species can be difficult to define, but most biologists still feel comfortable with the concept and are able to identify and count eukaryotic species in most ...

  7. Feb 28, 2024 · Species diversity is the number of species found in a particular area (this could be habitats, biomes, or the entire biosphere) and the relative abundance of each species. Species diversity is one of the three parts of biological diversity, of which the other two are ecosystem diversity, which is the various ecosystems found on our planet, and ...

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