气候变化领域集成服务门户(CCPortal): Insect-mediated apparent competition between mammals in a boreal food web

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DOI	10.1073/pnas.2022892118
	Insect-mediated apparent competition between mammals in a boreal food web
	Labadie G.; McLoughlin P.D.; Hebblewhite M.; Fortin D.
发表日期	2021
ISSN	0027-8424
卷号	118 期号:30
英文摘要	While the important role of animal-mediated interactions in the top-down restructuring of plant communities is well documented, less is known of their ensuing repercussions at higher trophic levels. We demonstrate how typically decoupled ecological interactions may become intertwined such that the impact of an insect pest on forest structure and composition alters predator–prey interactions among large mammals. Specifically, we show how irruptions in a common, cyclic insect pest of the boreal forest, the spruce budworm (Choristoneura fumiferana), modulated an indirect trophic interaction by initiating a flush in deciduous vegetation that benefited moose (Alces alces), in turn strengthening apparent competition between moose and threatened boreal caribou (Rangifer tarandus caribou) via wolf (Canis lupus) predation. Critically, predation on caribou postoutbreak was exacerbated by human activity (salvage logging). We believe our observations of significant, large-scale reverberating consumer–producer–consumer interactions are likely to be common in nature. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Apparent competition; Habitat selection; Insect outbreaks; Species conservation; Species interactions
语种	英语
scopus关键词	article; Canis lupus; Choristoneura fumiferana; competition; consumer; flushing; food web; forest structure; habitat selection; human; logging; nonhuman; predator prey interaction; reindeer; species conservation; taiga; vegetation
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/238463
作者单位	Centre d’étude de la forêt, Département de biologie, Université Laval, Québec, QC G1V 0A6, Canada; Department of Biology, University of Saskatchewan, Saskatoon, SK S7N 5E2, Canada; Wildlife Biology Program, Department of Ecosystem and Conservation Sciences, Franke College of Forestry and Conservation, University of Montana, Missoula, MT 59812, United States
推荐引用方式 GB/T 7714	Labadie G.,McLoughlin P.D.,Hebblewhite M.,et al. Insect-mediated apparent competition between mammals in a boreal food web[J],2021,118(30).
APA	Labadie G.,McLoughlin P.D.,Hebblewhite M.,&Fortin D..(2021).Insect-mediated apparent competition between mammals in a boreal food web.Proceedings of the National Academy of Sciences of the United States of America,118(30).
MLA	Labadie G.,et al."Insect-mediated apparent competition between mammals in a boreal food web".Proceedings of the National Academy of Sciences of the United States of America 118.30(2021).