DOI: 10.1111/ele.12537
Scopus记录号: 2-s2.0-84955353508
论文题名: Disturbance maintains alternative biome states
作者: Dantas V.de.L. ; Hirota M. ; Oliveira R.S. ; Pausas J.G.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2016
卷: 19, 期: 1 起始页码: 12
结束页码: 19
语种: 英语
英文关键词: Cerrado
; Feedbacks
; Fire
; Forest
; Herbivory
; Mosaic
; Savanna
; Savanna-forest transition
; Thresholds
; Tropical
Scopus关键词: Afrotropic Ecozone
; biome
; cerrado
; environmental conditions
; environmental factor
; forest ecosystem
; forest fire
; herbivory
; landscape ecology
; Neotropic Ecozone
; niche overlap
; savanna
; threshold
; tropical environment
; tropical region
; vegetation type
; soil
; Africa south of the Sahara
; chemistry
; fire
; forest
; geography
; grassland
; physiology
; soil
; tree
; tropic climate
; Western Hemisphere
; Africa South of the Sahara
; Americas
; Fires
; Forests
; Geography
; Grassland
; Soil
; Trees
; Tropical Climate
英文摘要: Understanding the mechanisms controlling the distribution of biomes remains a challenge. Although tropical biome distribution has traditionally been explained by climate and soil, contrasting vegetation types often occur as mosaics with sharp boundaries under very similar environmental conditions. While evidence suggests that these biomes are alternative states, empirical broad-scale support to this hypothesis is still lacking. Using community-level field data and a novel resource-niche overlap approach, we show that, for a wide range of environmental conditions, fire feedbacks maintain savannas and forests as alternative biome states in both the Neotropics and the Afrotropics. In addition, wooded grasslands and savannas occurred as alternative grassy states in the Afrotropics, depending on the relative importance of fire and herbivory feedbacks. These results are consistent with landscape scale evidence and suggest that disturbance is a general factor driving and maintaining alternative biome states and vegetation mosaics in the tropics. Copyright © 2016 John Wiley & Sons Ltd/CNRS. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107834
Appears in Collections: 气候减缓与适应
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作者单位: Department of Plant Biology, Functional Ecology Laboratory, Institute of Biology, University of Campinas - UNICAMP, P.O. Box 6109, Campinas, Brazil; Center for Physical and Mathematical Sciences, Federal University of Santa Catarina, Santa Catarina, Brazil; CIDE-CSIC, Ctra. Naquera Km. 4.5 (IVIA), Montcada, Valencia, Spain
Recommended Citation:
Dantas V.de.L.,Hirota M.,Oliveira R.S.,et al. Disturbance maintains alternative biome states[J]. Ecology Letters,2016-01-01,19(1)