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Global Diversity Estimates Need to Acknowledge Species–Area Relationships

2026-06-18Artigo de investigação Acesso aberto
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datacite.subject.fosCiências Naturais::Ciências Biológicas
datacite.subject.sdg15:Proteger a Vida Terrestre
dc.contributor.authorFaurby, Søren
dc.contributor.authorMatthews, Thomas
dc.contributor.authorSilvestro, Daniele
dc.date.accessioned2026-07-03T09:34:38Z
dc.date.available2026-07-03T09:34:38Z
dc.date.issued2026-06-18
dc.description.abstractABSTRACT: Background - Many studies have tried to estimate the number of undescribed species based on the known diversity. These estimates often rely on extrapolation based on data from a limited number of species. Although statistical methods provide accurate inference when generalizing from a random sample, their predictions will be biased when based on a non-random sample unless the sampling process is explicitly accounted for. Problem - In this paper, we argue that this is a fundamental issue in many estimates of unrecorded biodiversity. We show that the sample of species used in biodiversity extrapolation represents disproportionately common and abundant taxa, which leads to an overestimation of extrapolated diversity. We discuss this issue in the context of three specific cases: estimates of plant-associated insect diversity, estimates of parasite diversity and estimates of cryptic species diversity. Implications - For the example of plant-associated insects, we provide an estimate of the magnitude of the error, but insufficient data are currently available to estimate the magnitude of the problem for the other examples. Our findings cast doubt over previous attempts to estimate the number of undescribed species, suggesting that they provide consistent overestimations.eng
dc.identifier.citationFaurby, S., Matthews, T. J., & Silvestro, D. (2026). Global Diversity Estimates Need to Acknowledge Species–Area Relationships. Global Ecology and Biogeography, 35(6), e70267.
dc.identifier.doi10.1111/geb.70267
dc.identifier.eissn1466-8238
dc.identifier.issn1466-822X
dc.identifier.urihttp://hdl.handle.net/10400.3/9005
dc.language.isoeng
dc.peerreviewedyes
dc.publisherWiley
dc.relationSwedish Research Council Vetenskapsrådet (no. 2021-04690)
dc.relationETH Zurich
dc.relationSwedish Foundation for Strategic Environmental Research MISTRA - BIOPATH (F 2022/1448)
dc.relationUniversity of Birmingham's GEES Travel Fund
dc.relation.hasversionhttps://onlinelibrary.wiley.com/doi/10.1111/geb.70267
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/
dc.subjectbiased estimates
dc.subjectcryptic species
dc.subjectoverestimates
dc.subjectSAR
dc.subjectundescribed species
dc.subjectunrecorded diversity
dc.titleGlobal Diversity Estimates Need to Acknowledge Species–Area Relationshipseng
dc.typeresearch article
dcterms.referenceshttp://datadryad.org/share/8onHc0lst9fH63XdIJPHCvCqyxP35hMzh9wHMlGyXIU
dspace.entity.typePublication
oaire.citation.issue6
oaire.citation.startPagee70267
oaire.citation.titleGlobal Ecology and Biogeography
oaire.citation.volume35
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameMatthews
person.givenNameThomas
person.identifier.orcid0000-0002-7624-244X
person.identifier.scopus-author-id56005200900
relation.isAuthorOfPublicationb7b2a71f-eef1-4edb-a9f5-af567f123faa
relation.isAuthorOfPublication.latestForDiscoveryb7b2a71f-eef1-4edb-a9f5-af567f123faa

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