Beta diversity (β-diversity) is a measure of biodiversity which works by comparing the species diversity between ecosystems. this involves comparing the number of taxa that are unique to each of the ecosystems. Rainforests are among the most biodiverse ecosystems on earth Biodiversity or biological diversity is the diversity of life. ... In ecology, an ecosystem is a combination of all the living and non-living elements of an area. ...

See alpha diversity, gamma diversity, Global diversity. Alpha diversity (α-diversity) is the biodiversity within a particular area, community or ecosystem, and is measured by counting the number of taxa within the ecosystem (usually species). ...

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