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DOI	10.1111/ele.13719
	Disease and fire interact to influence transitions between savanna–forest ecosystems over a multi-decadal experiment
	Pellegrini A.F.A.; Hein A.M.; Cavender-Bares J.; Montgomery R.A.; Staver A.C.; Silla F.; Hobbie S.E.; Reich P.B.
发表日期	2021
ISSN	1461023X
起始页码	1007
结束页码	1017
卷号	24 期号:5
英文摘要	Global change is shifting disturbance regimes that may rapidly change ecosystems, sometimes causing ecosystems to shift between states. Interactions between disturbances such as fire and disease could have especially severe effects, but experimental tests of multi-decadal changes in disturbance regimes are rare. Here, we surveyed vegetation for 35 years in a 54-year fire frequency experiment in a temperate oak savanna–forest ecotone that experienced a recent outbreak of oak wilt. Different fire regimes determined whether plots were savanna or forest by regulating tree abundance (r2 = 0.70), but disease rapidly reversed the effect of fire exclusion, increasing mortality by 765% in unburned forests, but causing relatively minor changes in frequently burned savannas. Model simulations demonstrated that disease caused unburned forests to transition towards a unique woodland that was prone to transition to savanna if fire was reintroduced. Consequently, disease–fire interactions could shift ecosystem resilience and biome boundaries as pathogen distributions change. © 2021 The Authors. Ecology Letters published by John Wiley & Sons Ltd.
关键词	Alternative states fire forest forest model fungal pathogen plant disease savanna tree rings
英文关键词	biome; deciduous forest; disease prevalence; ecosystem resilience; ecotone; environmental disturbance; fire; forest ecosystem; global change; host-pathogen interaction; mortality; savanna; wilt; woodland; ecosystem; fire; forest; grassland; tree; Ecosystem; Fires; Forests; Grassland; Trees
语种	英语
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/204469
作者单位	Department of Plant Sciences, University of Cambridge, Cambridge, CB2 3EA, United Kingdom; Institute of Marine Sciences, University of California, Santa Cruz, CA 95060, United States; Department of Ecology, Evolution, and Behavior, University of Minnesota, St. Paul, MI 55108, United States; Department of Forest Resources, University of Minnesota, St. Paul, MI 55108, United States; Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT 06520, United States; Area of Ecology, Faculty of Biology, Universidad de Salamanca, Salamanca, 37071, Spain; Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW 2753, Australia
推荐引用方式 GB/T 7714	Pellegrini A.F.A.,Hein A.M.,Cavender-Bares J.,等. Disease and fire interact to influence transitions between savanna–forest ecosystems over a multi-decadal experiment[J],2021,24(5).
APA	Pellegrini A.F.A..,Hein A.M..,Cavender-Bares J..,Montgomery R.A..,Staver A.C..,...&Reich P.B..(2021).Disease and fire interact to influence transitions between savanna–forest ecosystems over a multi-decadal experiment.Ecology Letters,24(5).
MLA	Pellegrini A.F.A.,et al."Disease and fire interact to influence transitions between savanna–forest ecosystems over a multi-decadal experiment".Ecology Letters 24.5(2021).