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Arthropod co-occurrence networks indicate environmental differences between islands and signal introduced species in Azorean native forest remnants

2023-04-11Journal article Open access
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dc.contributor.authorPozsgai, Gabor
dc.contributor.authorCardoso, Pedro
dc.contributor.authorRigal, François
dc.contributor.authorBoieiro, Mário
dc.contributor.authorGabriel, Rosalina
dc.contributor.authorde Azevedo, Eduardo B.
dc.contributor.authorBorges, Paulo A. V.
dc.date.accessioned2023-04-13T11:19:53Z
dc.date.available2023-04-13T11:19:53Z
dc.date.issued2023-04-11
dc.description.abstractIsland biotas are in imminent threat from anthropogenic impacts. Of these impacts, the negative effects of exotic species on the taxonomic and functional diversity of the local fauna are of major concern. Exotics may also have a detrimental effect on interspecific interactions which, in turn, can destabilize ecological networks. Species co-occurrence networks can detect species-to-species associations and are used to predict ecological interaction networks and utilized as tools to assess environmental impacts on community structure. Here, we aim to investigate whether or not topological differences of the arthropod co-occurrence networks among native forest fragments from seven Azorean islands can reveal the influence of the abiotic environment and exotic species on these networks. Co-occurrence networks were sensitive to environmental and community dissimilarities, showing a clear separation between islands and pinpointed differences between indigenous and exotic networks. Most exotics were little connected and exotic networks had a large proportion of unconnected species. The resulting decreased connectance and the increased modularity with the increase of the proportions of exotics in the networks suggest that most exotics have too low prevalence to show associations with other species, and only a few dominants drive co-occurrences. The proportion of negative links, as indicators of competition, did not increase with the increase of exotics in the habitats, suggesting that exotics provided new functional roles when they colonized native forest remnants. However, when the theoretical networks consisting of only indigenous species were investigated, connectance decreased and closeness increased with the increase of exotics, suggesting processes of network degradation. Since our study provides ample evidence for the usefulness of co-occurrence network analysis in studying island ecosystems, we recommend the use of this tool for ecosystem assessments, early warning systems and decision-making in island biodiversity conservation.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationPozsgai, G., Cardoso, P., Rigal, F., Boieiro, M., Gabriel, R., de Azevedo, E.B. & Borges, P.A.V. (2023). Arthropod co-occurrence networks indicate environmental differences between islands and signal introduced species in Azorean native forest remnants. "Frontiers in Ecology and Evolution", 11: Article 113928, DOI: 10.3389/fevo.2023.113928pt_PT
dc.identifier.doi10.3389/fevo.2023.1139285pt_PT
dc.identifier.eissn2296-701X
dc.identifier.urihttp://hdl.handle.net/10400.3/6688
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherFrontiers Mediapt_PT
dc.relationFCT-UIDP/00329/2020pt_PT
dc.relationFCT-UIDB/00329/2020pt_PT
dc.relationDL57/2016/CP1375/CT0001pt_PT
dc.relation.publisherversionhttps://www.frontiersin.org/articles/10.3389/fevo.2023.1139285/fullpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectExotic Speciespt_PT
dc.subjectNetwork Complexitypt_PT
dc.subjectModularitypt_PT
dc.subjectIsland Introductionspt_PT
dc.subjectNative Faunapt_PT
dc.titleArthropod co-occurrence networks indicate environmental differences between islands and signal introduced species in Azorean native forest remnantspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage13pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleFrontiers in Ecology and Evolutionpt_PT
oaire.citation.volume11pt_PT
person.familyNamePozsgai
person.familyNameCardoso
person.familyNameRigal
person.familyNameGabriel
person.familyNameBorges
person.givenNameGabor
person.givenNamePedro
person.givenNameFrançois
person.givenNameRosalina
person.givenNamePaulo
person.identifierhttp://scholar.google.pt/citat
person.identifier829215
person.identifier.ciencia-idA21E-D087-9379
person.identifier.ciencia-id3118-EA4B-B8A3
person.identifier.ciencia-idE315-82D2-C35D
person.identifier.ciencia-idF212-6D82-7BA9
person.identifier.ciencia-idFA1A-C9CB-9C29
person.identifier.orcid0000-0002-2300-6558
person.identifier.orcid0000-0001-8119-9960
person.identifier.orcid0000-0001-6882-1591
person.identifier.orcid0000-0002-3550-8010
person.identifier.orcid0000-0002-8448-7623
person.identifier.ridJ-1538-2012
person.identifier.ridA-8820-2008
person.identifier.ridB-2780-2008
person.identifier.scopus-author-id55260489700
person.identifier.scopus-author-id36112709400
person.identifier.scopus-author-id55924714000
person.identifier.scopus-author-id7103316062
person.identifier.scopus-author-id7003533390
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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