globalchange  > 气候减缓与适应
DOI: 10.1002/ece3.4779
WOS记录号: WOS:000457622300048
论文题名:
Phenological synchrony between eastern spruce budworm and its host trees increases with warmer temperatures in the boreal forest
作者: Pureswaran, Deepa S.1; Neau, Mathieu2; Marchand, Maryse1; De Grandpre, Louis1; Kneeshaw, Dan2
通讯作者: Pureswaran, Deepa S.
刊名: ECOLOGY AND EVOLUTION
ISSN: 2045-7758
出版年: 2019
卷: 9, 期:1, 页码:576-586
语种: 英语
英文关键词: climate change ; disturbance ; insect outbreaks ; plant-insect interactions ; range shifts
WOS关键词: MOTH OPEROPHTERA-BRUMATA ; DAILY AIR-TEMPERATURE ; ARCTIC BIRCH FOREST ; CLIMATE-CHANGE ; INSECT HERBIVORE ; DEVELOPMENTAL RATES ; NORTH-AMERICA ; WHITE SPRUCE ; SIMULATION ; LEPIDOPTERA
WOS学科分类: Ecology ; Evolutionary Biology
WOS研究方向: Environmental Sciences & Ecology ; Evolutionary Biology
英文摘要:

Climate change is predicted to alter relationships between trophic levels by changing the phenology of interacting species. We tested whether synchrony between two critical phenological events, budburst of host species and larval emergence from diapause of eastern spruce budworm, increased at warmer temperatures in the boreal forest in northeastern Canada. Budburst was up to 4.6 +/- 0.7 days earlier in balsam fir and up to 2.8 +/- 0.8 days earlier in black spruce per degree increase in temperature, in naturally occurring microclimates. Larval emergence from diapause did not exhibit a similar response. Instead, larvae emerged once average ambient temperatures reached 10 degrees C, regardless of differences in microclimate. Phenological synchrony increased with warmer microclimates, tightening the relationship between spruce budworm and its host species. Synchrony increased by up to 4.5 +/- 0.7 days for balsam fir and up to 2.8 +/- 0.8 days for black spruce per degree increase in temperature. Under a warmer climate, defoliation could potentially begin earlier in the season, in which case, damage on the primary host, balsam fir may increase. Black spruce, which escapes severe herbivory because of a 2-week delay in budburst, would become more suitable as a resource for the spruce budworm. The northern boreal forest could become more vulnerable to outbreaks in the future.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/126095
Appears in Collections:气候减缓与适应

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作者单位: 1.Canadian Forest Serv, Laurentian Forestry Ctr, Quebec City, PQ, Canada
2.Univ Quebec Montreal, Dept Sci Biol, Montreal, PQ, Canada

Recommended Citation:
Pureswaran, Deepa S.,Neau, Mathieu,Marchand, Maryse,et al. Phenological synchrony between eastern spruce budworm and its host trees increases with warmer temperatures in the boreal forest[J]. ECOLOGY AND EVOLUTION,2019-01-01,9(1):576-586
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