气候变化领域集成服务门户(CCPortal): The magnet effect of fire on herbivores affects plant community structure in a forested system

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DOI	10.1016/j.foreco.2019.117794
	The magnet effect of fire on herbivores affects plant community structure in a forested system
	Westlake S.M.; Mason D.; Lázaro-Lobo A.; Burr P.; McCollum J.R.; Chance D.; Lashley M.A.
发表日期	2020
ISSN	0378-1127
卷号	458
英文摘要	Fire plays an important role in plant community structure in many terrestrial ecosystems. However, most studies assume responses of plant communities to fire are primarily generated by direct effects. That is, studies often assume the net effects of fire on plant communities are primarily driven by fire consuming existing plant biomass, resetting succession, and stimulating new seed germination. Far less attention has been paid to indirect effects of fire on plant communities as mediated by food web interactions. Here we demonstrated in a series of experiments in a loblolly pine (Pinus taeda) forest that the net effects of fire on plant community heterogeneity are indirectly mediated through changes in herbivore behavior. First, we demonstrated that fire causes a magnet effect for herbivores resulting in a 3-fold strengthening of herbivore use. Then in another experiment using a replicated before-after control-impact design with four treatments, we demonstrated that combining fire and herbivory has a non-additive positive effect on plant community heterogeneity. The shifts in the plant community were sustained post-fire through the plant dormancy period. These results highlight the need to conserve the fire-herbivory interaction rather than either force independently. © 2019 Elsevier B.V.
关键词	Animals Ecology Fires Forestry Magnets Before-after control impacts Food web interactions Heterogeneity Indirect effects Plant communities Seed germination Terrestrial ecosystems Top-down control Seed community structure coniferous forest experimental study forest ecosystem forest fire herbivory heterogeneity plant community plant-herbivore interaction seedling emergence succession Animals Ecology Fires Forestry Heterogeneity Magnets Pinus taeda
语种	英语
来源机构	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133096
推荐引用方式 GB/T 7714	Westlake S.M.,Mason D.,Lázaro-Lobo A.,et al. The magnet effect of fire on herbivores affects plant community structure in a forested system[J]. Forest Ecology and Management,2020,458.
APA	Westlake S.M..,Mason D..,Lázaro-Lobo A..,Burr P..,McCollum J.R..,...&Lashley M.A..(2020).The magnet effect of fire on herbivores affects plant community structure in a forested system.,458.
MLA	Westlake S.M.,et al."The magnet effect of fire on herbivores affects plant community structure in a forested system".458(2020).