NappiDrapeau2011

Référence

Nappi, A., Drapeau, P. (2011) Pre-fire forest conditions and fire severity as determinants of the quality of burned forests for deadwood-dependent species: The case of the black-backed woodpecker. Canadian Journal of Forest Research, 41(5):994-1003. (Scopus )

Résumé

Burned forests represent high-quality habitats for many deadwood-dependent species. Yet, post-fire conditions may vary greatly within and among burns and thereby may affect habitat suitability for these species. We studied habitat selection of nesting black-backed woodpeckers (Picoides arcticus Swainson) in recently burned spruce-dominated boreal forests. Our objectives were to (i) identify factors involved in snag selection for both nesting and foraging and (ii) examine selection of nest sites within the burned landscape. A total of 92 nests and 1612 foraging observations were used to investigate snag selection. Our results show that both pre-fire forest conditions and fire severity are important in determining the quality of burned forests for black-backed woodpeckers. This species selected large snags for both nesting (>20 cm DBH) and foraging (>15 cm DBH). Woodpeckers selected deciduous and degraded "pre-fire" snags for nesting whereas black spruce snags that had been created by fire and that were moderately burned were preferred for foraging. Nest sites were concentrated in burned mature stands and supported higher densities of large snags (e.g., >15 cm DBH). Our results suggest that burned forest patches of at least 20 ha and composed mainly of burned mature and old-growth forests should be maintained during post-fire harvesting. The decrease in the amount of late seral stands in managed forest landscapes raises concerns about the future availability of high-quality burned forests for this species.

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@ARTICLE { NappiDrapeau2011,
    AUTHOR = { Nappi, A. and Drapeau, P. },
    TITLE = { Pre-fire forest conditions and fire severity as determinants of the quality of burned forests for deadwood-dependent species: The case of the black-backed woodpecker },
    JOURNAL = { Canadian Journal of Forest Research },
    YEAR = { 2011 },
    VOLUME = { 41 },
    PAGES = { 994-1003 },
    NUMBER = { 5 },
    ABSTRACT = { Burned forests represent high-quality habitats for many deadwood-dependent species. Yet, post-fire conditions may vary greatly within and among burns and thereby may affect habitat suitability for these species. We studied habitat selection of nesting black-backed woodpeckers (Picoides arcticus Swainson) in recently burned spruce-dominated boreal forests. Our objectives were to (i) identify factors involved in snag selection for both nesting and foraging and (ii) examine selection of nest sites within the burned landscape. A total of 92 nests and 1612 foraging observations were used to investigate snag selection. Our results show that both pre-fire forest conditions and fire severity are important in determining the quality of burned forests for black-backed woodpeckers. This species selected large snags for both nesting (>20 cm DBH) and foraging (>15 cm DBH). Woodpeckers selected deciduous and degraded "pre-fire" snags for nesting whereas black spruce snags that had been created by fire and that were moderately burned were preferred for foraging. Nest sites were concentrated in burned mature stands and supported higher densities of large snags (e.g., >15 cm DBH). Our results suggest that burned forest patches of at least 20 ha and composed mainly of burned mature and old-growth forests should be maintained during post-fire harvesting. The decrease in the amount of late seral stands in managed forest landscapes raises concerns about the future availability of high-quality burned forests for this species. },
    COMMENT = { Export Date: 29 June 2011 Source: Scopus CODEN: CJFRA doi: 10.1139/x11-028 },
    ISSN = { 00455067 (ISSN) },
    KEYWORDS = { Black spruce, Boreal forests, Fire severity, Forest conditions, Forest patches, Habitat selection, Habitat suitability, High quality, Managed forest, Old-growth forest, Post-fire, Ecosystems, Forestry, Fires, bird, deciduous forest, forest fire, future prospect, habitat conservation, habitat selection, nest site, old-growth forest, population density, Density, Ecosystems, Forest Fires, Forestry, Harvesting, Picea Mariana },
    OWNER = { Luc },
    TIMESTAMP = { 2011.06.29 },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-79955726583&partnerID=40&md5=ed42f74ccfbb86a4d77d738e73138320 },
}

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