Robichaud2002247

Référence

Robichaud, I., Villard, M.-A., Machtans, C.S. (2002) Effects of forest regeneration on songbird movements in a managed forest landscape of Alberta, Canada. Landscape Ecology, 17(3):247-262. (Scopus )

Résumé

Recent studies have shown that barrier effects exist even in relatively vagile species such as forest songbirds. The objectives of this study were to determine whether a 560 × 100 m riparian buffer strip of mature forest was used as a movement corridor by forest songbirds and, if so, to what extent corridor effects persisted as woody vegetation regenerated in the adjacent clearcut. Over a 4-yr period, juvenile movement rates decreased in the riparian buffer strip and increased in the regenerating clearcut. Adult movement rates increased in the riparian buffer strip in the first year after logging, then gradually decreased, while still increasing in the regenerating clearcut. However, both juvenile and adult movement rates were higher in the buffer strip than in an undisturbed control site. Results suggest that most adults we captured held territories in the vicinity of the net lanes, and that most of the juveniles captured were dispersing away from their natal territory. Four years after harvest, juvenile movement rates were higher in the regenerating clearcut than in the riparian buffer strip, but several species had not yet been captured or detected in the regeneration. Our results suggest that the use of the riparian buffer strip as a movement corridor decreased with forest regeneration for both adults and juveniles. However, the buffer strip still acted as a movement corridor for the following species: Philadelphia and Red-eyed Vireos, Red-breasted Nuthatch, and Ovenbird.

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@ARTICLE { Robichaud2002247,
    AUTHOR = { Robichaud, I. and Villard, M.-A. and Machtans, C.S. },
    TITLE = { Effects of forest regeneration on songbird movements in a managed forest landscape of Alberta, Canada },
    JOURNAL = { Landscape Ecology },
    YEAR = { 2002 },
    VOLUME = { 17 },
    NUMBER = { 3 },
    PAGES = { 247-262 },
    NOTE = { cited By 31 },
    ABSTRACT = { Recent studies have shown that barrier effects exist even in relatively vagile species such as forest songbirds. The objectives of this study were to determine whether a 560 × 100 m riparian buffer strip of mature forest was used as a movement corridor by forest songbirds and, if so, to what extent corridor effects persisted as woody vegetation regenerated in the adjacent clearcut. Over a 4-yr period, juvenile movement rates decreased in the riparian buffer strip and increased in the regenerating clearcut. Adult movement rates increased in the riparian buffer strip in the first year after logging, then gradually decreased, while still increasing in the regenerating clearcut. However, both juvenile and adult movement rates were higher in the buffer strip than in an undisturbed control site. Results suggest that most adults we captured held territories in the vicinity of the net lanes, and that most of the juveniles captured were dispersing away from their natal territory. Four years after harvest, juvenile movement rates were higher in the regenerating clearcut than in the riparian buffer strip, but several species had not yet been captured or detected in the regeneration. Our results suggest that the use of the riparian buffer strip as a movement corridor decreased with forest regeneration for both adults and juveniles. However, the buffer strip still acted as a movement corridor for the following species: Philadelphia and Red-eyed Vireos, Red-breasted Nuthatch, and Ovenbird. },
    AFFILIATION = { Département de Biologie, Université de Moncton, Moncton E1A 3E9, Canada; Canadian Wildlife Service, Yellowknife X1A 1E2, Canada },
    AUTHOR_KEYWORDS = { Alberta; Boreal mixedwood forest; Canada; Connectivity; Corridors; Dispersal; Forest songbirds; Forestry; Generalised additive models; Movements; Riparian buffer strip },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1023/A:1020247118426 },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-0036039722&doi=10.1023%2fA%3a1020247118426&partnerID=40&md5=818436085a4e8c7bee8145ade03e2aa9 },
}

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