DOI: 10.1111/ele.13829
论文题名: Mammalian herbivores restrict the altitudinal range limits of alpine plants
作者: Lynn J.S. ; Miller T.E.X. ; Rudgers J.A.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2021
卷: 24, 期: 9 起始页码: 1930
结束页码: 1942
语种: 英语
中文关键词: biogeography
; biotic interactions
; climate change
; Dobzhansky–MacArthur hypothesis
; herbivory
; MPM/IPM demographic modelling
; population ecology
英文关键词: Mammalia
英文摘要: Although rarely experimentally tested, biotic interactions have long been hypothesised to limit low-elevation range boundaries of species. We tested the effects of herbivory on three alpine-restricted plant species by transplanting plants below (novel), at the edge (limit), or in the centre (core) of their current elevational range and factorially fencing-out above- and belowground mammals. Herbivore damage was greater in range limit and novel habitats than in range cores. Exclosures increased plant biomass and reproduction more in novel habitats than in range cores, suggesting demographic costs of novel interactions with herbivores. We then used demographic models to project population growth rates, which increased 5–20% more under herbivore exclosure at range limit and novel sites than in core habitats. Our results identify mammalian herbivores as key drivers of the low-elevation range limits of alpine plants and indicate that upward encroachment of herbivores could trigger local extinctions by depressing plant population growth. © 2021 The Authors. Ecology Letters published by John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166878
Appears in Collections: 气候变化与战略
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作者单位: Department of Biology, University of New Mexico, Albuquerque, NM, United States; The Rocky Mountain Biological Laboratory, Crested Butte, CO, United States; Department of Biological Sciences & Bjerknes Centre for Climate Research, University of Bergen, Bergen, Norway; Department of BioSciences, Rice University, Houston, TX, United States
Recommended Citation:
Lynn J.S.,Miller T.E.X.,Rudgers J.A.. Mammalian herbivores restrict the altitudinal range limits of alpine plants[J]. Ecology Letters,2021-01-01,24(9)