DOI: 10.1016/j.foreco.2014.04.036
Scopus记录号: 2-s2.0-84901228353
论文题名: Non-native tree species (Pseudotsuga menziesii) strongly decreases predator biomass and abundance in mixed-species plantations of a tree diversity experiment
作者: Schuldt A. ; Scherer-Lorenzen M.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 327 起始页码: 10
结束页码: 17
语种: 英语
英文关键词: Arthropods
; Biodiversity
; Ecosystem function
; Herbivore control
; Identity effects
; Spiders
Scopus关键词: Biodiversity
; Biomass
; Climate change
; Ecosystems
; Experiments
; Mixtures
; Arthropods
; Ecological consequences
; Ecosystem functions
; Identity effects
; Pseudotsuga menziesii
; Spiders
; Sustainable forest management
; Tree species composition
; Mixed species
; Non-native
; Tree diversity
; Forestry
; Biodiversity
; abundance
; adaptation
; biomass
; natural enemy
; plantation forestry
; species diversity
; species richness
; spider
; tree
; Biodiversity
; Biomass
; Ecosystems
; Mixtures
; Seasonal Variation
; Europe
; Araneae
; Arthropoda
; Pseudotsuga menziesii
英文摘要: Stand diversification increasingly emerges as a promising means for improving the multi-functionality and sustainability of management in plantation forests. Increasing tree species richness might potentially also benefit natural enemies, which can substantially contribute to sustainable forest management via top-down control of forest pests. However, there is little empirical evidence on how tree species richness affects the diversity and abundance of predators, as the majority of analyses to date have rarely gone beyond comparisons of monocultures and two species mixtures. Here, we analyzed the performance of spiders as important generalist predators in a tree diversity experiment that uses four of the economically most important broadleaved and coniferous tree species in Europe. We tested the extent to which tree species richness and the identity of the planted tree species affect the abundance, biomass, species richness and functional diversity of spiders. Whereas tree species richness in general had no significant effect, tree species identity strongly affected spider biomass and abundance-with a particularly strong negative effect of the non-native Douglas fir (Pseudotsuga menziesii (Mirb.) Franco). Our results indicate that increasing tree species richness does not necessarily promote characteristics of natural enemy assemblages relevant for pest control in forests and thus not all functions that may be important in a multi-functional management context. Rather, tree species composition and identity will often be of crucial importance in determining forest ecosystem functions and services. The fact that the severe impact of Douglas fir persisted even in diversified tree species mixtures suggests that stand-level predator efficiency can be reduced for tree species growing adjacent to or in mixture with this species. This calls for a more thorough examination of the ecological consequences of the increasing use of this species in forestry across Europe, in particular considering that climate change may increase the potential of pest outbreaks and thus the need for adequate control in the next decades. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65896
Appears in Collections: 影响、适应和脆弱性
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作者单位: Leuphana University Lüneburg, Institute of Ecology, Scharnhorststr. 1, D-21335 Lüneburg, Germany; University of Freiburg, Faculty of Biology - Geobotany, Schänzlestr. 1, D-79104 Freiburg, Germany
Recommended Citation:
Schuldt A.,Scherer-Lorenzen M.. Non-native tree species (Pseudotsuga menziesii) strongly decreases predator biomass and abundance in mixed-species plantations of a tree diversity experiment[J]. Forest Ecology and Management,2014-01-01,327