Biodiversity loss is a decrease in biodiversity within a species, an ecosystem, a given geographic area, or Earth as a whole.^[1] Biodiversity refers to all aspects of biological diversity, especially including species richness, ecosystem complexity, and genetic variation.^[2]

Related entries

climate change | conservation | environmental science

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Rafferty, John P. (2019) Biodiversity loss, Encyclopedia Britannica, April 19 (updated 14 June 2019).
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Allaby, Michael (ed.) (2019) A Dictionary of Plant Sciences, 4th ed., Oxford: Oxford University Press.