DOI: 10.1016/j.foreco.2017.05.031
Scopus记录号: 2-s2.0-85020196826
论文题名: Cold tolerance of mountain pine beetle among novel eastern pines: A potential for trade-offs in an invaded range?
作者: Rosenberger D.W. ; Aukema B.H. ; Venette R.C.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2017
卷: 400 起始页码: 28
结束页码: 37
语种: 英语
英文关键词: Bark beetle
; Chill intolerant
; Dendroctonus ponderosae
; Range expansion
; Supercooling point
Scopus关键词: Economic and social effects
; Landforms
; Risk assessment
; Value engineering
; Bark beetle
; Dendroctonus ponderosae
; Eastern north america
; Life-history traits
; Management planning
; Mountain pine beetle
; Range expansion
; Risk assessment models
; Forestry
; Coleoptera
; Dendroctonus ponderosae
; Hexapoda
; Pinus contorta
; Pinus mugo
; Scolytinae
英文摘要: Novel hosts may have unforeseen impacts on herbivore life history traits. The mountain pine beetle (Dendroctonus ponderosae Hopkins) is a tree-killing bark beetle native to western North America but constrained by cold temperatures in the northern limits of its distribution. In recent years, this insect has spread north and east of its historical range, and continued expansion, or accidental introduction, could result in the mountain pine beetle becoming invasive in eastern North America. The limiting effect of cold temperatures among novel host pines is unknown, yet crucial for understanding the risk posed to northeastern North American forests. We report the susceptibility of mountain pine beetle to cold temperatures while overwintering in six different pine species. Brood developed in two western pine hosts (Pinus contorta Dougl. var. latifolia Engelm. and P. ponderosa Dougl. ex. Laws. var. scopulorum Engelm.) as well as four eastern pines (P. banksiana Lamb., P. resinosa Ait., P. strobus L. and P. sylvestris L.) novel to this insect. The cold tolerance and cold tolerance strategy of the most common overwintering stage varied by host and year. Models describing lower lethal temperatures more accurately predicted observed field mortality of overwintering larvae than models based on temperatures at which larvae froze. Rapid development to less cold tolerant pupal and adult stages by brood in novel hosts prior to winter may constitute a trade-off between increased host suitability and winter mortality. We demonstrate that overwintering survival of mountain pine beetles in novel hosts depends on a match between the climate and ecophysiological effects of pine species. These results have implications for risk assessment models and management planning for eastern forests as mountain pine beetle continues to expand its range. © 2017 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64218
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Entomology, University of Minnesota, St. Paul, MN, United States; Department of Biological Sciences, Olivet Nazarene University, Bourbonnais, IL, United States; United States Department of Agriculture - Forest Service, Northern Research Station, St. Paul, MN, United States
Recommended Citation:
Rosenberger D.W.,Aukema B.H.,Venette R.C.. Cold tolerance of mountain pine beetle among novel eastern pines: A potential for trade-offs in an invaded range?[J]. Forest Ecology and Management,2017-01-01,400