HadleyDesrochers2008b

Reference

Hadley, A. and Desrochers, A. (2008) Winter habitat use by Boreal Chickadee flocks in a managed forest. Wilson Journal of Ornithology, 120(1):139-145.

Abstract

There are increasing conservation concerns associated with boreal regions, but little is known about winter habitat requirements of bird species inhabiting them. We examined flock size, winter habitat preference, and home range size of Boreal Chickadees (Poecile hudsonica) in a boreal forest harvested for timber near Quebec City, Quebec, Canada. We investigated whether and to what extent home range size wits affected by clearcuts and regeneration forest stands. Flocks included an average of four individuals and occupied a mean winter home range of 14.7 ha. Flock membership and size were stable during the winter. Boreal Chickadees strongly preferred mature stands of commercial Value (>7 m in height) and used regenerating stands (4-7 m in height) to a lesser extent. Younger stands (<4 m in height) and open areas were avoided. Home range size wits not associated with landscape composition, but flocks with larger home ranges used them less evenly than those with smaller home ranges. This resident species prefers stands of commercial value and logging may contribute to apparent population declines of Boreal Chickadees.

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@ARTICLE { HadleyDesrochers2008b,
    AUTHOR = { Hadley, A. and Desrochers, A. },
    TITLE = { Winter habitat use by Boreal Chickadee flocks in a managed forest },
    JOURNAL = { Wilson Journal of Ornithology },
    YEAR = { 2008 },
    VOLUME = { 120 },
    PAGES = { 139-145 },
    NUMBER = { 1 },
    MONTH = { mar },
    ABSTRACT = { There are increasing conservation concerns associated with boreal regions, but little is known about winter habitat requirements of bird species inhabiting them. We examined flock size, winter habitat preference, and home range size of Boreal Chickadees (Poecile hudsonica) in a boreal forest harvested for timber near Quebec City, Quebec, Canada. We investigated whether and to what extent home range size wits affected by clearcuts and regeneration forest stands. Flocks included an average of four individuals and occupied a mean winter home range of 14.7 ha. Flock membership and size were stable during the winter. Boreal Chickadees strongly preferred mature stands of commercial Value (>7 m in height) and used regenerating stands (4-7 m in height) to a lesser extent. Younger stands (<4 m in height) and open areas were avoided. Home range size wits not associated with landscape composition, but flocks with larger home ranges used them less evenly than those with smaller home ranges. This resident species prefers stands of commercial value and logging may contribute to apparent population declines of Boreal Chickadees. },
    AF = { Hadley, AdamEOLEOLDesrochers, Andre },
    KEYWORDS = { BLACK-CAPPED CHICKADEES; HOME-RANGE ANALYSIS; RADIO-TRACKING DATA; BIRD ASSEMBLAGES; WILLOW TITS; SURVIVAL; PARUS; CAPERCAILLIE; ESTIMATORS; SELECTION },
    OWNER = { brugerolles },
    PG = { 7 },
    SN = { 1559-4491 },
    TIMESTAMP = { 2008.10.03 },
    UT = { ISI:000259050800015 },
}

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