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Population structure and body condition of White-crested Elaenia(Elaenia albiceps)in relation to habitat in a modiffed Neotropical forest landscape

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Avian Research 2023年第2期14卷 160-165页

作者： Roberto F.Thomson andrew g.gosler Edward grey Institute of Field Ornithology Department of ZoologyUniversity of OxfordSouth Parks RoadOX13PSOxfordUK Laboratorio de Ecología de Vida Silvestre Facultad de Ciencias Forestales y Conservacion de la NaturalezaUniversidad de ChileSanta Rosa#11315La PintanaRegion MetropolitanaChile Institute of Human Sciences The Pauling Centre58a Banbury Rd.OxfordOX26QSUK

Despite the widely accepted view that planted forests are valuable habitat for wildlife species,there is a lack of empirical evidence showing the suitability of this novel habitat,especially in relation to plantations of exotic tree ***,little is known about the effects of forest management on the ecology and dynamics of wild populations in the *** the breeding season,the migrant flycatcher White-crested Elaenia is the most abundant bird species in forested landscapes in *** several years we have studied different aspects of these artificial forests in the coastal range of south-central Chile as habitat for the species,particularly in contrast to the native *** general,our results indicate that plantation forests offer a poorer quality habitat,where the density of the species tends to be lower than in the native forest,although a significant edge effect suggests that its quality can be mitigated by planting as a matrix mosaic with native ***,compared to native forests,populations in plantations contained a higher proportion of younger adult individuals maintaining larger territories,and showing poorer body *** suggest that these differences could also have an impact on the birds'longevity and survival.

关键词： Body condition Migrant Planted forests Survival Temperate forests Territory

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