DOI: 10.1016/j.foreco.2016.07.045
Scopus记录号: 2-s2.0-84989863425
论文题名: Winter bird use of harvest residues in clearcuts and the implications of forest bioenergy harvest in the southeastern United States
作者: Grodsky S.M. ; Moorman C.E. ; Fritts S.R. ; Hazel D.W. ; Homyack J.A. ; Castleberry S.B. ; Wigley T.B.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 379 起始页码: 91
结束页码: 101
语种: 英语
英文关键词: Biomass harvesting guidelines
; Clearcut
; Downed wood
; Forest bioenergy
; Harvest residues
; Winter birds
Scopus关键词: Biodiversity
; Birds
; Ecosystems
; Forestry
; Harvesting
; Piles
; Reforestation
; Vegetation
; Wood
; Wooden construction
; Bio-energy
; Biomass harvesting
; Clearcut
; Harvest residues
; Winter birds
; Biomass
; Aves
; Zenaida macroura
英文摘要: Increased market viability of harvest residues gleaned for forest bioenergy feedstocks may intensify downed wood removal, particularly in intensively managed forests of the Southeast. Downed wood provides food and cover for many wildlife species, including birds, yet we are aware of no study that has examined winter bird response to experimentally manipulated, operational-scale woody biomass harvests. Further, little research has investigated avian use of downed wood following timber harvests. As such, our objectives were to: (1) evaluate effects of varying intensities of woody biomass harvest on the winter bird community and (2) document spatial associations between winter bird species and available habitat structure, including downed wood, in regenerating stands. In January and February of 2012–2014, we surveyed birds using a modified version of spot-mapping in six woody biomass removal treatments in North Carolina, USA (n = 4 regenerating stands). Treatments included clearcut harvest followed by: (1) traditional woody biomass harvest with no biomass harvesting guidelines; (2) 15% retention with harvest residues dispersed; (3) 15% retention with harvest residues clustered; (4) 30% retention with harvest residues dispersed; (5) 30% retention with harvest residues clustered; and (6) no woody biomass harvest (i.e., reference). We tested for treatment-level effects on avian relative abundance (overall and individual species), species diversity and richness, and counts of winter birds detected near (∼1 m from pile), in, or on branches of downed wood piles and calculated proportional avian habitat use of harvest residues and vegetation in regenerating stands. In 69 visits over three winters, we observed 3352 birds in treatments. In 2013, counts of birds detected in piles were greater in the no biomass harvest and 30% clustered treatments than the no biomass harvesting guidelines treatment. In 2012 and 2013 combined, mourning dove (Zenaida macroura) had greater relative abundance in the no biomass harvest treatment compared to the 15% dispersed treatment and was more often detected within 1 m of downed wood piles than in vegetation. We counted more winter birds in and near adjacent forest edge than in treatment interiors each year. Overall, we detected minimal treatment effects on winter bird relative abundance and no effects on species diversity and richness. Relative abundance of winter birds increased over time as vegetative cover established in regenerating stands. Our results suggest woody biomass harvests in intensively managed pine forests had no effect on the winter bird community, but winter birds used harvest residues. Further, vegetation structure and composition, rather than availability of harvest residues, primarily influenced winter bird use of regenerating stands. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64738
Appears in Collections: 影响、适应和脆弱性
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作者单位: North Carolina State University, Department of Forestry and Environmental Resources, Fisheries, Wildlife, and Conservation Biology Program, Box 7646, Raleigh, NC, United States; North Carolina State University, Department of Forestry and Environmental Resources, Box 7646, Raleigh, NC, United States; Weyerhaeuser Company, 1785 Weyerhaeuser Road, Vanceboro, NC, United States; University of Georgia, Warnell School of Forestry and Natural Resources, Athens, GA, United States; National Council for Air and Stream Improvement, Inc., P.O. Box 340317, Clemson, SC, United States; Texas Tech University, Department of Natural Resources Management, P.O. Box 42125, Lubbock, TX, United States
Recommended Citation:
Grodsky S.M.,Moorman C.E.,Fritts S.R.,et al. Winter bird use of harvest residues in clearcuts and the implications of forest bioenergy harvest in the southeastern United States[J]. Forest Ecology and Management,2016-01-01,379