DesrochersTardifMazerolle2012

Référence

Desrochers, A., Tardif, J. and Mazerolle, M.J. (2012) Use of large clear-cuts by Wilson's Warbler in an eastern Canadian boreal forest. Avian Conservation and Ecology, 7(2):-. (Scopus )

Résumé

Wilson's Warbler (Cardellina pusilla; WIWA) has been declining for several decades, possibly because of habitat loss. We compared occupancy of territorial males in two habitat types of Québec's boreal forest, alder (Alnus spp.) scrubland and recent clear-cuts. Singing males occurred in clusters, their occupancy was similar in both habitats, but increased with the amount of alder or clear-cut within 400 m of point-count stations. A despotic distribution of males between habitats appeared unlikely, because there were no differences in morphology between males captured in clear-cuts vs. alder. Those results contrast with the prevailing view, mostly based on western populations, that WIWA are wetland or riparian specialists, and provide the first evidence for a preference for large tracts of habitat in this species. Clear-cuts in the boreal forest may benefit WIWA by supplying alternative nesting habitat. However, the role of clear-cuts as source or sink habitats needs to be addressed with data on reproduction. © 2012 by the author(s).

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@ARTICLE { DesrochersTardifMazerolle2012,
    AUTHOR = { Desrochers, A. and Tardif, J. and Mazerolle, M.J. },
    TITLE = { Use of large clear-cuts by Wilson's Warbler in an eastern Canadian boreal forest },
    JOURNAL = { Avian Conservation and Ecology },
    YEAR = { 2012 },
    VOLUME = { 7 },
    PAGES = { -- },
    NUMBER = { 2 },
    ABSTRACT = { Wilson's Warbler (Cardellina pusilla; WIWA) has been declining for several decades, possibly because of habitat loss. We compared occupancy of territorial males in two habitat types of Québec's boreal forest, alder (Alnus spp.) scrubland and recent clear-cuts. Singing males occurred in clusters, their occupancy was similar in both habitats, but increased with the amount of alder or clear-cut within 400 m of point-count stations. A despotic distribution of males between habitats appeared unlikely, because there were no differences in morphology between males captured in clear-cuts vs. alder. Those results contrast with the prevailing view, mostly based on western populations, that WIWA are wetland or riparian specialists, and provide the first evidence for a preference for large tracts of habitat in this species. Clear-cuts in the boreal forest may benefit WIWA by supplying alternative nesting habitat. However, the role of clear-cuts as source or sink habitats needs to be addressed with data on reproduction. © 2012 by the author(s). },
    BOOKTITLE = { Utilisation de vastes parterres de coupe totale par la Paruline à calotte noire dans une forêt boréale de l'Est du Canada },
    COMMENT = { Export Date: 20 February 2013 Source: Scopus doi: 10.5751/ACE-00521-070201 },
    ISSN = { 17126568 (ISSN) },
    KEYWORDS = { Area-sensitivity, Cardellina pusilla, Forest management, Forest succession, Generalized linear mixed model, Habitat use, Morphology, Occupancy modeling, Patch size, Quebec, Wetlands, Wilson's Warbler },
    OWNER = { Luc },
    TIMESTAMP = { 2013.02.20 },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-84871676613&partnerID=40&md5=6b064009332e68aab19d276a65583ad9 },
}

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