DOI: 10.1016/j.foreco.2014.08.042
Scopus记录号: 2-s2.0-84949123559
论文题名: Proportions of saproxylic beetle populations that utilise clear-cut stumps in a boreal landscape - Biodiversity implications for stump harvest
作者: Jonsell M. ; Schroeder M.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 334 起始页码: 313
结束页码: 320
语种: 英语
英文关键词: Biodiversity
; Bioenergy
; Clear-cut
; Coleoptera
; Saproxylic
; Stumps
Scopus关键词: Biodiversity
; Harvesting
; Population statistics
; Bio-energy
; Clear-cut
; Coleoptera
; Saproxylic
; Stumps
; Forestry
; beetle
; biodiversity
; boreal forest
; clearcutting
; coarse woody debris
; coniferous tree
; endangered species
; habitat conservation
; habitat loss
; population density
; population structure
; recruitment (population dynamics)
; Biodiversity
; Biological Populations
; Data
; Stumps
; Coleoptera
; Hexapoda
; Picea
英文摘要: Many saproxylic insects (insects dependent on deadwood) are threatened because the amounts of suitable substrate, coarse woody debris (CWD), are low in managed forests. Harvesting clear-cut stumps for bioenergy will decrease these amounts further and may therefore contribute to loss of biodiversity. Earlier studies have demonstrated that many saproxylic beetle species utilise clear-cut stumps. However, the importance of stumps compared with other kinds of deadwood remains unknown. In particular, some species adapted to sun-exposed deadwood created by disturbances might, in managed forest landscapes, be dependent on stumps in clear-cuts. In the present study we quantify the proportions of landscape-wide populations of saproxylic beetles that are recruited from clear-cut stumps in a managed boreal forest landscape. The amount of bark on clear-cut stumps and population densities (beetles per m2 bark) were estimated for a 24,499ha landscape in Sweden. Our data were pooled with estimates from a similar study in the same landscape, including all other types of CWD and beetle densities. The clear-cut stumps were estimated to contribute 15.5% of total bark to CWD in the landscape. For spruce, clear-cut stumps contributed 37.9% of the total bark. Of 39 analysed beetle species, 13 were estimated to have more than 10% of their populations in clear-cut stumps, 9 more than 50%, and 5 more than 80%. Clear-Cut stumps are thus an important breeding substrate for many beetle species and consequently, intensive stump harvest risks decreasing biodiversity. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65689
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Ecology, Swedish University of Agricultural Sciences, P.O. Box 7044, Uppsala, Sweden
Recommended Citation:
Jonsell M.,Schroeder M.. Proportions of saproxylic beetle populations that utilise clear-cut stumps in a boreal landscape - Biodiversity implications for stump harvest[J]. Forest Ecology and Management,2014-01-01,334