How many species are there on Earth? Progress and problems

John J Wiens

PLOS Biology, 2023, vol. 21, issue 11, 1-4

Abstract: How many species exist on Earth? Projections range from millions to trillions. A 2011 paper in PLOS Biology provided a comprehensive estimate of 9 million.How many species are there on Earth? Projections have ranged from the millions to the trillions. This Perspective looks at how a 2011 PLOS Biology study transformed this field and what is still to be done to find a definitive answer.

Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pbio00:3002388

DOI: 10.1371/journal.pbio.3002388

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