Mostrar el registro sencillo del ítem

Edge and area effects on avian assemblages and insectivory in fragmented native forests

hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorBARBARO, Luc
hal.structure.identifierNew Zealand Forest Research Institute
dc.contributor.authorBROCKERHOFF, Eckehard G.
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorGIFFARD, Brice
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorVAN HALDER, Inge
dc.date.issued2012
dc.identifier.issn0921-2973
dc.description.abstractEnDisentangling the confounded effects of edge and area in fragmented landscapes is a recurrent challenge for landscape ecologists, requiring the use of appropriate study designs. Here, we examined the effects of forest fragment area and plot location at forest edges versus interiors on native and exotic bird assemblages on Banks Peninsula (South Island, New Zealand). We also experimentally measured with plasticine models how forest fragment area and edge versus interior location influenced the intensity of avian insectivory. Bird assemblages were sampled by conducting 15 min point-counts at paired edge and interior plots in 13 forest fragments of increasing size (0.5-141 ha). Avian insectivory was measured as the rate of insectivorous bird attacks on plasticine models mimicking larvae of a native polyphagous moth. We found significant effects of edge, but not of forest patch area, on species richness, abundance and composition of bird assemblages. Exotic birds were more abundant at forest edges, while neither edge nor area effects were noticeable for native bird richness and abundance. Model predation rates increased with forest fragmentation, both because of higher insectivory in smaller forest patches and at forest edges. Avian predation significantly increased with insectivorous bird richness and foraging bird abundance. We suggest that the coexistence of native and exotic birds in New Zealand mosaic landscapes enhances functional diversity and trait complementation within predatory bird assemblages. This coexistence results in increased avian insectivory in small forest fragments through additive edge and area effects.
dc.language.isoen
dc.publisherSpringer Verlag
dc.subjectmosaic landscapes
dc.subjectplasticine models
dc.subject.enarea effects
dc.subject.enavian insectivory
dc.subject.enedge effects
dc.subject.enexotic birds
dc.subject.enforest fragmentation
dc.subject.ennative birds
dc.subject.enNew Zealand
dc.title.enEdge and area effects on avian assemblages and insectivory in fragmented native forests
dc.typeArticle de revue
dc.identifier.doi10.1007/s10980-012-9800-x
dc.subject.halSciences du Vivant [q-bio]
bordeaux.journalLandscape Ecology
bordeaux.page1451-1463
bordeaux.volume27
bordeaux.issue10
bordeaux.peerReviewedoui
hal.identifierhal-02651626
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02651626v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Landscape%20Ecology&rft.date=2012&rft.volume=27&rft.issue=10&rft.spage=1451-1463&rft.epage=1451-1463&rft.eissn=0921-2973&rft.issn=0921-2973&rft.au=BARBARO,%20Luc&BROCKERHOFF,%20Eckehard%20G.&GIFFARD,%20Brice&VAN%20HALDER,%20Inge&rft.genre=article


Archivos en el ítem

ArchivosTamañoFormatoVer

No hay archivos asociados a este ítem.

Este ítem aparece en la(s) siguiente(s) colección(ones)

Mostrar el registro sencillo del ítem