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Threats and conservation status of the endemic terrestrial arthropods of the Azores

2025-06-07Artigo de investigação Acesso aberto
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datacite.subject.fosCiências Naturais::Ciências Biológicas
datacite.subject.sdg15:Proteger a Vida Terrestre
dc.contributor.authorOyarzabal da Silva, Guilherme
dc.contributor.authorPozsgai, Gabor
dc.contributor.authorTsafack, Noelline
dc.contributor.authorCardoso, Pedro
dc.contributor.authorRigal, François
dc.contributor.authorCanelas Boieiro, Mário Rui
dc.contributor.authorCoelho dos Santos, Ana Margarida
dc.contributor.authorAmorim do Rosário, Isabel
dc.contributor.authorMalumbres-Olarte, Jagoba
dc.contributor.authorCosta, Ricardo
dc.contributor.authorLhoumeau, Sébastien Georges André
dc.contributor.authorGabriel, Rosalina
dc.contributor.authorBorges, P.A.V.
dc.date.accessioned2026-01-27T14:46:54Z
dc.date.available2026-01-27T14:46:54Z
dc.date.issued2025-06-07
dc.description.abstractABSTRACT: Insular ecosystems are disproportionately threatened by human activities, leading to an unprecedented decline in species diversity, particularly on remote archipelagos like the Azores. However, the impacts of humans on arthropods, which typically represent a big proportion of island biotas, remain poorly documented. We present an assessment of threats affecting different groups of species, examining the relationship between species occupancy, IUCN threat categories and trophic interactions for arthropods in the Azores (Macaronesia). We compiled data on endemic arthropods from published lists and IUCN assessments, including extinction risk, direct threats, and geographical ranges, to identify key pressures on species. Using network analyses, we examined the association between extinction risk and number of species, also estimating the IUCN Red List Index (RLI) for each island conservation status. We found that some of the Azorean endemic arthropod species have already gone extinct and more than half are classified as threatened by the IUCN Red List. Of these, predatory beetles (Coleoptera) and spiders (Araneae) have the highest numbers of threatened species, mainly due to habitat degradation, the spread of invasive plant species, and climate change. The RLI differs greatly among islands, being the lowest in Santa Maria, which concentrates a large number of critically endangered (CR) single-island endemic species, and higher in islands with larger and better-preserved native forest fragments, such as Terceira. A comprehensive approach integrating habitat protection, invasive species management and conservation measures is essential to ensure the long-term survival of Azorean arthropod endemic species in particular and island biota in general.eng
dc.identifier.citationOyarzabal, G., Pozsgai, G., Tsafack, N., Cardoso, P., Rigal, F., Boieiro, M., Santos, A. M. C., Amorim, I. R., Malumbres-Olarte, J., Costa, R., Lhoumeau, S., Gabriel, R., & Borges, P. A. V. (2025). Threats and conservation status of the endemic terrestrial arthropods of the Azores. Biological Conservation, 309, 111282. https://doi.org/10.1016/j.biocon.2025.111282
dc.identifier.doi10.1016/j.biocon.2025.111282
dc.identifier.eissn1873-2917
dc.identifier.issn0006-3207
dc.identifier.urihttp://hdl.handle.net/10400.3/8835
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier Science Ltd
dc.relationFundação para a Ciência e a Tecnologia (FCT, Portugal) - MACRISK (FCT-PTDC/BIA-CBI/0625/2021)
dc.relationFundação para a Ciência e a Tecnologia (FCT, Portugal) - UIDP/00329/2020
dc.relationFundação para a Ciência e a Tecnologia (FCT, Portugal) - UIDP/00329/2020
dc.relationFundação para a Ciência e a Tecnologia (FCT, Portugal) - UIDB/00329/2023
dc.relationcE3c (DOI: 10.54499/UIDB/00329/2020)
dc.relationCHANGE (DOI: 10.54499/la/p/0121/2020)
dc.relation.hasversionhttps://www.sciencedirect.com/science/article/pii/S0006320725003192?via%3Dihub
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/
dc.subjectAnthropogenic impact
dc.subjectClimate change
dc.subjectExtinction risk
dc.subjectExtinction debt
dc.subjectHabitat fragmentation
dc.subjectIUCN red list
dc.titleThreats and conservation status of the endemic terrestrial arthropods of the Azoreseng
dc.typeresearch article
dspace.entity.typePublication
oaire.citation.endPage11
oaire.citation.issue111282
oaire.citation.startPage1
oaire.citation.titleBiological Conservation
oaire.citation.volume309
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
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