气候变化领域集成服务门户(CCPortal): Long-term response of forest bird communities to retention forestry in northern temperate coniferous forests

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DOI	10.1016/j.foreco.2020.117982
	Long-term response of forest bird communities to retention forestry in northern temperate coniferous forests
	Price K.; Daust K.; Lilles E.; Roberts A.-M.
发表日期	2020
ISSN	0378-1127
卷号	462
英文摘要	Retention forestry aims to maintain structural and functional continuity in managed stands. While short-term benefits to forest dwellers are well documented, few studies have followed patterns over decades to assess whether benefits continue. Initiated in 1992, the Date Creek Research Forest in northwest BC includes four replicates of four retention levels: 0% (clearcut), 40%, 70% and 100% (unharvested control). These ~20-hectare stands, with retention designed to mimic typical insect and wind disturbance, are now entering the canopy closure seral stage. We followed breeding bird community dynamics over 25 years (pre-harvest and 24 years post-harvest). Given relatively consistent landscape conditions over time, we focused on stand-level changes in bird community composition and species abundance. Community similarity to controls decreased as retention decreased; communities changed over time, with those in clearcuts changing most. Patterns in species abundance varied with habitat preference. Conifer-forest species declined immediately after harvest, with some responding linearly to retention level while others responded similarly to 40%, 70% and 100% treatments; Pacific Slope Flycatcher, Pacific Wren and Brown Creeper remained significantly less abundant in some treatments by year 24. Open-habitat and generalist species increased most in clearcut and somewhat in 40% retention stands, with generalists taking advantage of the increased heterogeneity immediately and open-habitat species colonizing by year 10; some of these species, particularly shrub specialists, remained at high abundance in harvested stands in year 24. Mixed-forest species reached their highest abundance at 40% retention in year 2 and 10, and dropped to control levels by year 24. Although conifer-forest, open-habitat and generalist species treated retention stands as intermediate between clearcuts and controls, mixed-forest species perceived them as a different, preferred habitat for the first decade. We conclude first that most forest birds do not discriminate between 70% retention stands and unharvested forest, confirming strategies in the region to maintain biodiversity in landscape corridors, second that aggregated 40% patch retention partially or fully mitigates impacts for conifer-forest birds, and provides new habitat for mixed-forest and open-habitat species, and third that bird communities are still changing after 24 years as these stands enter canopy closure. © 2020 The Authors
关键词	Biodiversity Birds Ecosystems Harvesting Timber Bird community compositions Community similarity Coniferous forests Habitat preferences Harvested stands Landscape corridors Retention forestries Species abundance Forestry abundance biodiversity bird clearcutting community composition community dynamics coniferous forest forest ecosystem forestry heterogeneity landscape shrub temperate forest Biodiversity Birds Control Systems Ecosystems Forestry Harvesting Patterns Retention Aves Certhia americana Coniferophyta Hexapoda Troglodytinae
语种	英语
来源机构	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/132910
推荐引用方式 GB/T 7714	Price K.,Daust K.,Lilles E.,et al. Long-term response of forest bird communities to retention forestry in northern temperate coniferous forests[J]. Forest Ecology and Management,2020,462.
APA	Price K.,Daust K.,Lilles E.,&Roberts A.-M..(2020).Long-term response of forest bird communities to retention forestry in northern temperate coniferous forests.,462.
MLA	Price K.,et al."Long-term response of forest bird communities to retention forestry in northern temperate coniferous forests".462(2020).