DOI: 10.1016/j.foreco.2015.09.044
Scopus记录号: 2-s2.0-84943421882
论文题名: The influence of variation in host tree monoterpene composition on secondary attraction by an invasive bark beetle: Implications for range expansion and potential host shift by the mountain pine beetle
作者: Burke J.L. ; Carroll A.L.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 359 起始页码: 59
结束页码: 64
语种: 英语
英文关键词: Climate change
; Dendroctonus
; Pheromone production
; Range expansion
; α-Pinene
Scopus关键词: Bolts
; Climate change
; Landforms
; Monoterpenes
; Olefins
; Dendroctonus
; Dendroctonus ponderosae
; Elevated concentrations
; Jack pine (Pinus banksiana)
; Monoterpene composition
; Range expansion
; Relative concentration
; Reproductive performance
; Forestry
; adaptation
; bark
; beetle
; biochemical composition
; climate change
; concentration (composition)
; coniferous forest
; coniferous tree
; host plant
; host specificity
; invasive species
; monoterpene
; pheromone
; range expansion
; reproductive potential
; Canada
; Coleoptera
; Dendroctonus
; Dendroctonus ponderosae
; Pinus banksiana
; Pinus contorta
; Pinus mugo
; Scolytinae
英文摘要: The range of mountain pine beetle (Dendroctonus ponderosae) has expanded in recent years to include many evolutionarily naïve forests in western Canada. These forests include novel populations of the principal host species, lodgepole pine (Pinus contorta), the novel species jack pine (Pinus banksiana), and their hybrids (P. contorta×. P. banksiana). These novel forests are chemically and physically different than native forests, and recent studies have shown beetle reproductive performance is enhanced in these novel habitats. We conducted a field experiment to determine the effect of differing host chemistry, specifically α-pinene content, on secondary attraction by foraging mountain pine beetles. Alpha-pinene is the precursor molecule for the production of trans-verbenol, the main aggregation pheromone for this beetle species. We found that elevated relative concentrations of α-pinene in bolts significantly increased their attractiveness to in situ mountain pine beetles. Seventy-five percent of attacks were found on infested bolts with the most α-pinene relative to other monoterpenes. Other measures of terpene chemistry between bolt types could not explain the pattern of attacks. This result suggests that elevated concentrations of α-pinene could increase the rate of aggregation and attack success by the mountain pine beetle in novel pine forests. Newly invaded hybrid and jack pine in the western boreal forest are reported to contain 3-4 times the relative concentration of α-pinene than lodgepole pines in forests in which the beetle has coevolved. These elevated concentrations may help the mountain pine beetle overcome some of the potential restraints for establishment and spread in the boreal forest, such as low pine volume and connectivity, and continue expanding its range. © 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/65199
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Forest and Conservation Sciences, Faculty of Forestry, The University of British Columbia, 2424 Main Mall, Vancouver, BC, Canada
Recommended Citation:
Burke J.L.,Carroll A.L.. The influence of variation in host tree monoterpene composition on secondary attraction by an invasive bark beetle: Implications for range expansion and potential host shift by the mountain pine beetle[J]. Forest Ecology and Management,2016-01-01,359