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Unravelling the complexities of biotic homogenization and heterogenization in the British avifauna

2024Journal article Open access
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dc.contributor.authorWayman, Joseph P.
dc.contributor.authorSadler, Jonathan P.
dc.contributor.authorMartin, Thomas E
dc.contributor.authorGraham, Laura J
dc.contributor.authorWhite, Hannah J
dc.contributor.authorTobias, Joseph
dc.contributor.authorMatthews, Thomas J.
dc.date.accessioned2024-09-23T10:23:58Z
dc.date.available2024-09-23T10:23:58Z
dc.date.issued2024
dc.description.abstractBiotic homogenization is a process whereby species assemblages become more similar through time. The standard way of identifying the process of biotic homogenization is to look for decreases in spatial beta–diversity. However, using a single assemblage-level metric to assess homogenization can mask important changes in the occupancy patterns of individual species. Here, we analysed changes in the spatial beta–diversity patterns (i.e. biotic heterogenization or homogenization) of British bird assemblages within 30 km × 30 km regions between two periods (1988–1991 and 2008–2011). We partitioned the change in spatial beta–diversity into extirpation and colonization-resultant change (i.e. change in spatial beta–diversity within each region resulting from both extirpation and colonization). We used measures of abiotic change in combination with Bayesian modelling to disentangle the drivers of biotic heterogenization and homogenization. We detected both heterogenization and homogenization across the two time periods and three measures of diversity (taxonomic, phylogenetic, and functional). In addition, both extirpation and colonization contributed to the observed changes, with heterogenization mainly driven by extirpation and homogenization by colonization. These assemblage-level changes were primarily due to shifting occupancy patterns of generalist species. Compared to habitat generalists, habitat specialists had significantly (i) higher average contributions to colonization-resultant change (indicating heterogenization within a region due to colonization) and (ii) lower average contributions to extirpation-resultant change (indicating homogenization from extirpation). Generalists showed the opposite pattern. Increased extirpation-resultant homogenization within regions was associated with increased urban land cover and decreased habitat diversity, precipitation, and temperature. Changes in extirpation-resultant heterogenization and colonization-resultant heterogenization were associated with differences in elevation between regions and changes in temperature and land cover. Many of the ‘winners’ (i.e. species that increased in occupancy) were species that had benefitted from conservation action (e.g. buzzard (Buteo buteo). The ‘losers’ (i.e. those that decreased in occupancy) consisted primarily of previously common species, such as cuckoo (Cuculus canorus). Our results show that focusing purely on changes in spatial beta–diversity over time may obscure important information about how changes in the occupancy patterns of individual species contribute to homogenization and heterogenization.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationWayman, J., Sadler, J., Martin, T., Graham, L., White, H., Tobias, J., & Matthews, T. J. (2024). Unravelling the complexities of biotic homogenization and heterogenization in the British avifauna. Journal of Animal Ecology, 93(9), 1288-1302. DOI:10.1111/1365-2656.14145 (IF2023 3,5; Q1 Ecology)pt_PT
dc.identifier.doi10.1111/1365-2656.14145pt_PT
dc.identifier.eissn1365-2656
dc.identifier.issn0021-8790
dc.identifier.urihttp://hdl.handle.net/10400.3/7145
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherWileypt_PT
dc.relation.publisherversionhttps://besjournals.onlinelibrary.wiley.com/doi/10.1111/1365-2656.14145pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectBeta–Diversitypt_PT
dc.subjectColonizationpt_PT
dc.subjectDissimilaritypt_PT
dc.subjectExtirpationpt_PT
dc.subjectGeneralistspt_PT
dc.subjectSpecialistspt_PT
dc.titleUnravelling the complexities of biotic homogenization and heterogenization in the British avifaunapt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1302pt_PT
oaire.citation.issue9pt_PT
oaire.citation.startPage1288pt_PT
oaire.citation.titleJournal of Animal Ecologypt_PT
oaire.citation.volume93pt_PT
person.familyNameWayman
person.familyNameSadler
person.familyNameMartin
person.familyNameGraham
person.familyNameWhite
person.familyNameTobias
person.familyNameMatthews
person.givenNameJoe
person.givenNameJonathan P.
person.givenNameThomas E
person.givenNameLaura
person.givenNameHannah J
person.givenNameJoseph
person.givenNameThomas
person.identifier.orcid0000-0002-3122-8070
person.identifier.orcid0000-0003-0443-4458
person.identifier.orcid0000-0002-4028-4867
person.identifier.orcid0000-0003-0809-9618
person.identifier.orcid0000-0002-8935-490X
person.identifier.orcid0000-0003-2429-6179
person.identifier.orcid0000-0002-7624-244X
person.identifier.ridF-6016-2011
person.identifier.scopus-author-id57222630177
person.identifier.scopus-author-id7202059013
person.identifier.scopus-author-id7202182903
person.identifier.scopus-author-id56005200900
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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