La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Estimated persistence of northern flying a squirrel populations in temperate rain forest fragments of Southeast Alaska
Auteurs :	Winston P. Smith, Auteur ; Dauid K. Person, Auteur
Type de document :	Article
Dans :	Biological Conservation (137(4) JUL 2007)
Article en page(s) :	626-636
Langues:	Anglais
Résumé :	Habitat reserves are a common strategy used to ensure viability of wildlife populations and communities. The efficacy of reserves, however, is rarely empirically evaluated. We examined the likelihood that small (650 ha), isolated habitat reserves composed of old-growth Sitka spruce (Picea sitchensis)-western hemlock (Tsuga heterophylia) rain forest (upland-OG) and mixed-conifer peatlands (peatland-MC) would sustain populations of northern flying squirrels (Glaucomys sabrinus) in the absence of immigration or emigration within the Tongass National Forest in Southeast Alaska. We used demographic data obtained from a study of flying squirrels on Prince of Wales Island in Southeast Alaska and litter size from flying squirrels in similar habitat to estimate per capita rate of increase (r) of flying squirrels in upland-OG (r = 0.14,

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