DOI: 10.1016/j.foreco.2015.05.021
Scopus记录号: 2-s2.0-84938204425
论文题名: Short- and long-term benefits for forest biodiversity of retaining unlogged patches in harvested areas
作者: Baker S.C. ; Halpern C.B. ; Wardlaw T.J. ; Crawford R.L. ; Bigley R.E. ; Edgar G.J. ; Evans S.A. ; Franklin J.F. ; Jordan G.J. ; Karpievitch Y. ; Spies T.A. ; Thomson R.J.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2015
卷: 353 起始页码: 187
结束页码: 195
语种: 英语
英文关键词: Edge effects
; Forest influence
; Invertebrates
; Plants
; Retention forestry
; Variable retention
Scopus关键词: Aggregates
; Animals
; Biodiversity
; Ecosystems
; Floods
; Forestry
; Harvesting
; Timber
; Edge effect
; Forest influence
; Invertebrates
; Plants
; Retention forestries
; Variable retentions
; Reforestation
; beetle
; biodiversity
; clearcutting
; edge effect
; forest management
; forestry production
; harvesting
; long-term change
; plant community
; regeneration
; silviculture
; species diversity
; spider
; stand structure
; transect
; Araneae
; Coleoptera
; Invertebrata
英文摘要: Aggregated retention, in which patches of trees (aggregates) remain unlogged within larger harvested units, was first applied commercially in 1986. A primary goal was to maintain greater diversity of forest-dependent species through harvest, relative to conventional clearcutting. Despite its global application, the long-term benefits for biodiversity and the comparative responses of disparate taxonomic groups to aggregated retention are largely unknown. A critical knowledge gap relates to the role of 'forest influence' - whether and to what extent aggregates affect biodiversity in neighboring harvested areas. We sampled plants, beetles, and spiders/harvestmen in the world's three oldest aggregated-retention sites (21-26. years old), matched with three recently harvested sites (5-8. years old). For each taxonomic group, we compared species composition between undisturbed aggregates and regenerating forests to assess the 'lifeboating' function of aggregates. For each group, we also modeled changes in species composition, and in the numbers of aggregate- and regeneration-affiliated species, with distance from the aggregate edge into the regenerating forest along transects at north-facing edges. For all three taxa, species composition differed between aggregates and regenerating forests in both older and recent sites, confirming the long-term effectiveness of aggregates for lifeboating. The compositional difference between habitats was significantly greater at recent than at older sites for plants, but not for invertebrates. Plants and spiders/harvestmen responded to forest influence, with a marginal response for beetles. Responses for plants and spiders generally manifested as increased numbers of aggregate-affiliated species and decreased numbers of regeneration-affiliated species in regenerating areas closer to edges. Our results indicate that aggregated retention has short- and long-term benefits for biodiversity reflecting both the lifeboating and forest-influence functions of aggregates. However, variation in the responses of plants, beetles and spiders suggests that these benefits cannot be generalized among taxa. We advocate broader application of aggregated retention in forests managed for timber production and encourage managers to incorporate the benefits of forest influence in harvest designs by arranging aggregates to reduce average distances from harvested areas to unlogged habitats. © 2015 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65365
Appears in Collections: 影响、适应和脆弱性
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作者单位: School of Biological Sciences, University of Tasmania, Private Bag 55, Hobart, TAS, Australia; Forestry Tasmania, GPO Box 207, Hobart, TAS, Australia; School of Environmental and Forest Sciences, University of Washington, Box 352100, Seattle, WA, United States; Burke Museum, University of Washington, Box 353010, Seattle, WA, United States; Forest Resources Division, Washington State Department of Natural Resources, PO Box 47016, Olympia, WA, United States; Institute for Marine and Antarctic Studies, University of Tasmania, GPO Box 252-49, Hobart, TAS, Australia; School of Mathematics and Physics, University of Tasmania, Private Bag 50, Hobart, TAS, Australia; US Department of Agriculture Forest Service, PNW Research Station, 3200 SW Jefferson Way, Corvallis, OR, United States
Recommended Citation:
Baker S.C.,Halpern C.B.,Wardlaw T.J.,et al. Short- and long-term benefits for forest biodiversity of retaining unlogged patches in harvested areas[J]. Forest Ecology and Management,2015-01-01,353