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Impacts of partial harvest of riparian buffer strips on cavity-nesting birds in boreal mixedwood forest.

机译:河岸缓冲带的部分收获对北方混材林中巢穴鸟类的影响。

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摘要

To alleviate negative effects of forest harvesting on wildlife in boreal forests, forest managers are attempting to emulate patterns of wildfire disturbance in treed riparian buffers using partial-harvesting techniques. I assessed the response of cavity-nesting birds to forest harvesting in riparian buffers, and identified habitat features relevant to bird management across three spatial scales in the Boreal Plains ecozone of SK and MB in 2005 and 2006. The composition of bird assemblages shifted when less than 33% of forest was retained in buffers. Site-use by Brown Creepers (Certhia americana ), Red-breasted Nuthatches (Sitta canadensis), Yellow-bellied Sapsuckers (Sphyrapicus varius) and Boreal Chickadees ( Poecile hudsonica) decreased with increasing amount of harvest. Compared to harvested buffers, burned riparian forest supported more Northern Flickers (Colaptes auratus), Tree Swallows (Tachycineta bicolor ) and House Wrens (Troglodytes aedon). Site-use by most species was related to habitat at a scale similar to their territory size.
机译:为了减轻森林采伐对北方森林中野生动植物的负面影响,森林管理者正在尝试使用部分采伐技术来模拟树木泛滥的河岸缓冲区中的野火干扰模式。我评估了巢穴鸟类对沿河缓冲带森林采伐的反应,并确定了2005和2006年在SK和MB的北方平原生态区中三个空间尺度上与鸟类管理相关的栖息地特征。超过33%的森林保留在缓冲区中。随着收获量的增加,布朗爬山虎(Certhia americana),红胸Nuthatches(Sitta canadensis),黄腹啄木鸟(Sphyrapicus varius)和北方山雀(Poecile hudsonica)的用地量减少。与采伐的缓冲区相比,烧过的河岸森林支持更多的北洋F(Colaptes auratus),树燕子(Tachycineta bicolor)和屋W(Troglodytes aedon)。大多数物种的场地使用与栖息地有关,其规模与其领土规模相似。

著录项

  • 作者

    Clarke, Heather.;

  • 作者单位

    University of Alberta (Canada).;

  • 授予单位 University of Alberta (Canada).;
  • 学科 Biology Ecology.;Agriculture Forestry and Wildlife.
  • 学位 M.Sc.
  • 年度 2008
  • 页码 158 p.
  • 总页数 158
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 生态学(生物生态学);森林生物学;
  • 关键词

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