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Impact of land-use change on flower-visiting insect communities on an oceanic island

2017Journal article Restricted access
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dc.contributor.authorPicanço, Ana
dc.contributor.authorRigal, François
dc.contributor.authorMatthews, Thomas J.
dc.contributor.authorCardoso, Pedro
dc.contributor.authorBorges, Paulo A. V.
dc.date.accessioned2018-06-11T15:51:39Z
dc.date.available2018-06-11T15:51:39Z
dc.date.issued2017
dc.description.abstract1. Land-use change has profoundly impacted pollinator communities throughout the world. However, the processes through which it acts on pollinator diversity and composition are still poorly understood, especially in highly vulnerable island ecosystems. 2. In this study, we investigated the distribution, abundance, richness and composition of flower-visiting insects to assess their response to land-use change in Terceira Island (Azores). 3. Flower-visiting insects were sampled over 2 years using a standardised protocol along 50 transects across five different habitats corresponding to a landuse gradient. Insect species were classified as indigenous or exotics. We assessed changes across habitats using multiple diversity indices, species abundance distribution models (SAD) and species composition metrics (b-diversity), along with plant species composition. 4. We observed that indigenous flower-visiting insects were dominant, both in abundance and species richness, across the entire land-use gradient. Species diversity varied only slightly across the gradient. SADs were lognormal in all habitats, with very few truly common and rare flower-visiting insects and a prevalence of species of intermediate abundance. Species replacement was significantly higher mainly between the two most contrasting habitats (i.e. natural forests and intensive pastures) but was significantly correlated with species replacement of host plant species across the gradient. 5. Our results revealed that the Azorean flower-visiting insect communitieswere highly simplified across the entire gradient with little difference between habitats. In the absence of strong exotic competitors, indigenous flower-visiting insects expand their range and occupy new anthropogenic habitats, also facilitating the expansion of a large number of exotic plant species.en
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationPicanço, A., Rigal, F., Matthews, T.J., Cardoso, P. & Borges, P.A.V. (2017). Impact of land-use change on flower-visiting insect communities on an oceanic island. "Insect Conservation and Diversity", 10(3): 211-223. DOI:10.1111/icad.12216pt_PT
dc.identifier.doi10.1111/icad.12216pt_PT
dc.identifier.issn1752-4598
dc.identifier.urihttp://hdl.handle.net/10400.3/4728
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherWileypt_PT
dc.relationBiodiversity on oceanic islands: towards a unified theory
dc.subjectDiversityen
dc.subjectCommunity Assemblyen
dc.subjectExotic Speciesen
dc.subjectFlower-Visiting Insectsen
dc.subjectLand-Use Changeen
dc.subjectNative Speciesen
dc.subjectOceanic Islandsen
dc.subjectPollinator Networksen
dc.subjectSpecies Abundance Distributionen
dc.titleImpact of land-use change on flower-visiting insect communities on an oceanic islanden
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleBiodiversity on oceanic islands: towards a unified theory
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FBIA-BIC%2F119255%2F2010/PT
oaire.citation.endPage223pt_PT
oaire.citation.issue(3)pt_PT
oaire.citation.startPage211pt_PT
oaire.citation.titleInsect Conservation and Diversitypt_PT
oaire.citation.volume10pt_PT
oaire.fundingStream3599-PPCDT
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isProjectOfPublication06fbea24-58be-4bad-8ec2-4c8d8d5ae0d9
relation.isProjectOfPublication.latestForDiscovery06fbea24-58be-4bad-8ec2-4c8d8d5ae0d9

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