DOI: 10.1016/j.foreco.2015.09.002
Scopus记录号: 2-s2.0-84941198098
论文题名: Retention patch size and conservation of saproxylic beetles in boreal white spruce stands
作者: Lee S.-I. ; Spence J.R. ; Langor D.W. ; Pinzon J.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2015
卷: 358 起始页码: 98
结束页码: 107
语种: 英语
英文关键词: Aggregated retention
; Coarse woody debris
; Edge effect
; Forest management
; Saproxylic beetles
; White spruce
Scopus关键词: Biodiversity
; Conservation
; Harvesting
; Aggregated retention
; Coarse woody debris
; Edge effect
; Saproxylic beetles
; White spruce
; Forestry
; Forest Management
; Insects
; Picea Engelmannii
; Coleoptera
; Picea glauca
英文摘要: Green tree retention is thought to conserve biodiversity in harvested landscapes; however, the amount and distribution of retention that best meets conservation goals remains unclear. To clarify size of retention patches needed to effectively conserve saproxylic (i.e., deadwood-associated) beetles in western Canada, we compared beetle assemblages among patches of three size categories (small: 0.63-1.06 ha, medium: 1.43-2.93 ha, and large: 3.34-5.93 ha) left in harvested areas with those from intact forests and harvested matrix. To understand edge effects as a potential driver of faunal changes associated with patch size, we also compared assemblages from edges and centers of retention patches. Saproxylic beetle assemblages similar to those in intact forests were well maintained in all patch centers, but assemblages in small and medium patches were strongly influenced by edge effects and were least similar to those in intact forests. Particular trophic guilds showed distinct responses to patch size. Predator assemblages showed negative edge effects in small and medium patches, while phloeophage assemblages did not differ between edges and centers of different patch sizes. Although smaller patches may better emulate historical size distributions of fire skips, conservation value is likely maximized in large patches, mainly by decreasing edge effects. Our study dealt mainly with 'initial colonizers', but further studies to define minimum patch size for retention harvest must be conducted over time to incorporate effects on species associated with well-decayed deadwood. © 2015 Published by Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65233
Appears in Collections: 影响、适应和脆弱性
There are no files associated with this item.
作者单位: Department of Renewable Resources, University of Alberta, 442 Earth Sciences Building, Edmonton, AB, Canada; Natural Resources Canada, Canadian Forest Service, 5320-122 Street, Edmonton, AB, Canada
Recommended Citation:
Lee S.-I.,Spence J.R.,Langor D.W.,et al. Retention patch size and conservation of saproxylic beetles in boreal white spruce stands[J]. Forest Ecology and Management,2015-01-01,358