气候变化领域集成服务门户(CCPortal): A meta-analysis of the effects of tree retention on shrubland birds

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DOI	10.1016/j.foreco.2020.118730
	A meta-analysis of the effects of tree retention on shrubland birds
	Akresh M.E.; King D.I.; Lott C.A.; Larkin J.L.; D'Amato A.W.
发表日期	2020
ISSN	0378-1127
英文摘要	The effects of forest management on native fauna are of key interest to managers and conservationists. Individual studies have expanded our knowledge of management impacts, but meta-analyses of multiple studies are needed to summarize and integrate findings into a more generalizable form. Most meta-analyses on the effects of tree harvesting have focused on mature forest taxa because of concerns for these species; however, early-successional specialists, such as shrubland birds in the eastern United States, are also of key conservation concern. Using data from 34 studies that examined the effects of silvicultural treatments on bird communities, we conducted a meta-analysis to determine the effects of tree retention on a suite of bird species reported to be associated with shrubland habitats within the northeastern United States. Of 21 putative shrubland bird species for which we had sufficient sample sizes for analyses, most (62%) exhibited monotonic declines of density with increasing tree retention, defined as percent basal area or canopy cover retained. Five other species (24%) exhibited quadratic relationships with tree retention. Finally, three additional species (14%) considered to be shrubland birds did not exhibit significant relationships with tree retention. We also calculated density estimates of shrubland birds in three categorical classifications of basal area retention corresponding to common management regimes: regeneration harvests with little retention (clearcut and seed-tree methods), regeneration harvests with moderate retention (shelterwoods), and high retention management regimes (commercial thinning, selection methods, no management). Many of the shrubland species had high densities in clearcuts as well as in stands with low levels (5–25%) of mature tree retention, and some species had equally high densities in stands with moderate tree retention (30–70%), supporting the use of retention forestry approaches, which can provide other benefits associated with mature trees. Overall, our findings provide managers and conservationists with robust, quantitative relationships of shrubland birds with tree retention. Managers can use these quantitative relationships for more detailed planning and evaluation of silvicultural projects, more so than what was feasible using previous findings of shrubland bird responses to discrete silvicultural treatments from disparate studies. © 2020 Elsevier B.V.
英文关键词	Avian; Logging; Review; Silviculture; Tree harvest; Young forest
语种	英语
scopus关键词	Birds; Conservation; Harvesting; Managers; Density estimates; Detailed planning; Early-successional; Management regime; Regeneration harvest; Retention forestries; Selection methods; Silvicultural treatments; Reforestation
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/155662
作者单位	Department of Environmental Conservation, University of Massachusetts Amherst, 204 Holdsworth Hall, Amherst, MA 01003, United States; Department of Environmental Studies, Antioch University New England, 40 Avon St., Keene, NH 03431, United States; U.S. Forest Service Northern Research Station, University of Massachusetts Amherst, 201 Holdsworth Hall, Amherst, MA 01003, United States; Indiana University of Pennsylvania, Indiana, PA 15701, United States; Conservation Science & Data Visualization, Boise, ID 83712, United States; American Bird Conservancy, The PlainsVA 20198, United States; University of Vermont, 204E Aiken Center, Burlington, VT 05405, United States
推荐引用方式 GB/T 7714	Akresh M.E.,King D.I.,Lott C.A.,et al. A meta-analysis of the effects of tree retention on shrubland birds[J],2020.
APA	Akresh M.E.,King D.I.,Lott C.A.,Larkin J.L.,&D'Amato A.W..(2020).A meta-analysis of the effects of tree retention on shrubland birds.Forest Ecology and Management.
MLA	Akresh M.E.,et al."A meta-analysis of the effects of tree retention on shrubland birds".Forest Ecology and Management (2020).