DOI: 10.1016/j.foreco.2015.11.045
Scopus记录号: 2-s2.0-84954270933
论文题名: Effects of winter temperatures, spring degree-day accumulation, and insect population source on phenological synchrony between forest tent caterpillar and host trees
作者: Uelmen J.A. ; Jr. ; Lindroth R.L. ; Tobin P.C. ; Reich P.B. ; Schwartzberg E.G. ; Raffa K.F.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 362 起始页码: 241
结束页码: 250
语种: 英语
英文关键词: Climate change
; Forest
; Insect
; Phenology
; Plant-insect interactions
; Synchrony
Scopus关键词: Chemical sensors
; Forestry
; Hatches
; Plants (botany)
; Temperature
; Forest
; Insect
; Phenology
; Plant-insect interactions
; Synchrony
; Climate change
; Betula papyrifera
; Hexapoda
; Malacosoma disstria
; Populus tremuloides
英文摘要: Global climate change has the potential to dramatically alter multiple ecosystem processes, including herbivory. The development rates of both plants and insects are highly sensitive to temperature. Although considerable work has examined the effects of temperature on spring phenologies of plants and insects individually, few studies have examined how anticipated warming will influence their phenological synchrony. We applied elevated temperatures of 1.7 and 3.4. °C in a controlled chamberless outdoor experiment in northeastern Minnesota, USA to examine the relative responses in onset of egg eclosion by forest tent caterpillar (. Malacosoma disstria Hübner) and budbreak of two of its major host trees (trembling aspen, Populus tremuloides Michaux, and paper birch, Betula papyrifera Marshall). We superimposed four insect population sources and two overwintering regimes onto these treatments, and computed degree-day models. Timing of egg hatch varied among population source, overwintering location, and spring temperature regime. As expected, the development rates of plants and insects advanced under warmer conditions relative to ambient controls. However, budbreak advanced more than egg hatch. The degree of phenological synchrony between M. disstria and each host plant was differentially altered in response to warming. The interval by which birch budbreak preceded egg hatch nearly doubled from ambient to +1.7 °C. In the case of aspen, the sequence changed from egg hatch preceding, to following, budbreak at +3.4 °C. Additionally, under temperature regimes simulating future conditions, some insect populations currently south of our study sites became more synchronous with the manipulated hosts than did currently coexisting insect populations. These findings reveal how climate warming can alter insect-host plant interactions, through changes in phenological synchrony, possibly driving host shifts among tree species and genotypes. They also suggest how herbivore variability, both among populations and within individual egg masses, may provide opportunities for adaptation, especially in species that are highly mobile and polyphagous. © 2015 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65108
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Entomology, University of Wisconsin-Madison, Madison, WI, United States; School of Environmental and Forest Sciences, University of Washington, Seattle, WA, United States; Department of Forest Resources, University of Minnesota, St. Paul, MN, United States; Hawkesbury Institute for the Environment, University of Western Sydney, Penrith, NSW, Australia; Adirondack Research, Saranac Lake, NY, United States
Recommended Citation:
Uelmen J.A.,Jr.,Lindroth R.L.,et al. Effects of winter temperatures, spring degree-day accumulation, and insect population source on phenological synchrony between forest tent caterpillar and host trees[J]. Forest Ecology and Management,2016-01-01,362