DOI: 10.1016/j.foreco.2016.01.037
Scopus记录号: 2-s2.0-84956968508
论文题名: Overlooked subterranean saproxylic beetle diversity in clear-cut stumps and its implications for stump extraction
作者: Victorsson J. ; Jonsell M.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2015
语种: 英语
英文关键词: Biodiversity
; Bioenergy
; Coleoptera
; CWD
; Root
; Stump harvest
Scopus关键词: Biodiversity
; Forestry
; Harvesting
; Plants (botany)
; Substrates
; Wood
; Bio-energy
; Coleoptera
; Hylobius abietis
; Phylogenetic diversity
; Root
; Saproxylic beetles
; Saproxylic species
; Species composition
; Extraction
英文摘要: Stump extraction (which include removal of coarse roots) will reduce the available habitat for insects breeding in dead wood (saproxylic species). The root-living diversity is largely unknown which is unsatisfactory as 68% of the wood harvested at stump extraction is root wood. We compared the diversity of saproxylic beetles in Norway spruce, Picea abies, coarse roots with that in the above-ground part of the same stumps. Five below-ground (root) and eight above-ground (stump) samples were collected from early-decay stumps at each of twelve Swedish clear-cuts. In total 8314 saproxylic beetles of 60 species were reared from the 156 wood samples. The estimated species richness in roots (47 species) was 51% of that in stumps (93). When root and stump samples were pooled the total estimate was 116 species. The phylogenetic diversity (average taxonomic distinctness) in individual roots was only 63% of that in stumps. Species composition differed between substrate types, and only 28% of the species were common to both substrates. Most root samples were numerically dominated by Dryocoetes autographus (33% of the samples) or Hylobius abietis (10%). Most stump samples were dominated by Crypturgus spp. (66%) or Rhagium inquisitor (19%). Of the 17 most abundant species, five were associated with roots and two of those used roots exclusively. Ten species were associated with stumps. We conclude that the root-living beetles constitute an important part of the stump/root assemblage and should not be overlooked when the effects of stump harvest on biodiversity is evaluated. © 2016. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65322
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, Box 7044, SE-750 07 Uppsala, Sweden
Recommended Citation:
Victorsson J.,Jonsell M.. Overlooked subterranean saproxylic beetle diversity in clear-cut stumps and its implications for stump extraction[J]. Forest Ecology and Management,2015-01-01