DOI: 10.1016/j.foreco.2013.06.021
Scopus记录号: 2-s2.0-84899124340
论文题名: Reductions in downed deadwood from biomass harvesting alter composition of spiders and ground beetle assemblages in jack-pine forests of Western Quebec
作者: Work T.T. ; Brais S. ; Harvey B.D.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 321 起始页码: 19
结束页码: 28
语种: 英语
英文关键词: Biodiversity
; Bioenergy
; Biomass
; Carabids
; Deadwood
; Spiders
Scopus关键词: Biodiversity
; Forestry
; Harvesting
; Living systems studies
; Regression analysis
; Soil mechanics
; Bio-energy
; Carabids
; Deadwood
; Empirical validation
; Multivariate regression trees
; Natural variability
; Species assemblage
; Spiders
; Biomass
; beetle
; biodiversity
; bioenergy
; biomass
; clearcutting
; coniferous forest
; habitat corridor
; habitat restoration
; harvesting
; spider
; Canada
; Quebec [Canada]
; Araneae
; Arthropoda
; Carabidae
; Pinus banksiana
英文摘要: Renewed interest in biomass harvesting has underscored the need for ecologically relevant thresholds and empirical validation of species responses for deadwood retention if biodiversity is to be preserved in managed landscapes. We experimentally reduced volumes of downed deadwood in clear cut jack-pine stands in Western Quebec, Canada and then monitored changes in spider and ground beetle assemblages 1 and 2-years following biomass removal as well as in uncut stands. We reduced volume of downed deadwood by (1) removing residual deadwood placed on machine corridors during the initial harvest of the stand to minimize soil compaction and (2) removing all residual deadwood material throughout the experimental plots. Ground beetle and spider assemblages from deadwood depleted plots were then compared with those in clearcut plots where no additional biomass had been removed and with uncut stands to assess the incremental effect of overstory removal and subsequent biomass removal using multivariate regression trees. We identified 13,822 individual arthropods representing 177 species. We observed differences in species assemblages attributable to the effects of overstory removal (35% of the explained variance) as well as biomass removal, particularly between plots with intensive removal of biomass and those with no additional or moderate removal of biomass (11% of the explained variance). As expected we observed a range of individual species response patterns. Of particular concern were species that experienced incrementally negative effects of overstory and biomass removal and those that were strongly promoted by biomass removal. These species showed responses atypical of those observed following clear cutting and may fall outside both the range of natural variability observed in this region as well as the range of current forest management intensity practiced in North America. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66000
Appears in Collections: 影响、适应和脆弱性
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作者单位: Sciences biologiques, Université du Québec à Montréal, CP 8888 Succursale Centre-Ville, Montreal, QC H3C 3P8, Canada; Institut de recherche sur les forêts, Université du Québec en Abitibi-Témiscamingue, 445, boul. de l'Université, Rouyn-Noranda, QC J9X 5E4, Canada; Centre d'étude de la forêt, Chaire industrielle CRSNG-UQAT-UQAM en aménagement forestier durable, Canada
Recommended Citation:
Work T.T.,Brais S.,Harvey B.D.. Reductions in downed deadwood from biomass harvesting alter composition of spiders and ground beetle assemblages in jack-pine forests of Western Quebec[J]. Forest Ecology and Management,2014-01-01,321