use of large clear-cuts by wilson's warbler in an eastern canadian boreal forest

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ID: 198577
2012
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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.
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desrochers2012avianuse Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;André Desrochers;Jacinthe Tardif;Marc J. Mazerolle
Journal advances in operations research
Year 2012
DOI
10.5751/ACE-00521-070201
URL
http://www.ace-eco.org/vol7/iss2/art1/
Keywords
morphology wetlands forest management forest succession

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