Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.14408 |
Resilience of tropical tree cover: The roles of climate, fire, and herbivory | |
Staal, Arie1; van Nes, Egbert H.1; Hantson, Stijn2; Holmgren, Milena3; Dekker, Stefan C.4,5; Pueyo, Salvador6; Xu, Chi7; Scheffer, Marten1 | |
2018-11-01 | |
发表期刊 | GLOBAL CHANGE BIOLOGY |
ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2018 |
卷号 | 24期号:11页码:5096-5109 |
文章类型 | Article |
语种 | 英语 |
国家 | Netherlands; USA; Spain; Peoples R China |
英文摘要 | Fires and herbivores shape tropical vegetation structure, but their effects on the stability of tree cover in different climates remain elusive. Here, we integrate empirical and theoretical approaches to determine the effects of climate on fire- and herbivore-driven forest-savanna shifts. We analyzed time series of remotely sensed tree cover and fire observations with estimates of herbivore pressure across the tropics to quantify the fire-tree cover and herbivore-tree cover feedbacks along climatic gradients. From these empirical results, we developed a spatially explicit, stochastic fire-vegetation model that accounts for herbivore pressure. We find emergent alternative stable states in tree cover with hysteresis across rainfall conditions. Whereas the herbivore-tree cover feedback can maintain low tree cover below 1,100 mm mean annual rainfall, the fire-tree cover feedback can maintain low tree cover at higher rainfall levels. Interestingly, the rainfall range where fire-driven alternative vegetation states can be found depends strongly on rainfall variability. Both higher seasonal and interannual variability in rainfall increase fire frequency, but only seasonality expands the distribution of fire-maintained savannas into wetter climates. The strength of the fire-tree cover feedback depends on the spatial configuration of tree cover: Landscapes with clustered low tree-cover areas are more susceptible to cross a tipping point of fire-driven forest loss than landscapes with scattered deforested patches. Our study shows how feedbacks involving fire, herbivores, and the spatial structure of tree cover explain the resilience of tree cover across climates. |
英文关键词 | alternative stable states bistability forest grasslands livestock model regime shifts remote sensing tipping points wildfire |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000447760300009 |
WOS关键词 | WOODY COVER ; HUMID SAVANNA ; BURNT AREA ; FOREST ; DYNAMICS ; DRIVEN ; RAINFALL ; MODEL ; VARIABILITY ; DROUGHT |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/17548 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.Wageningen Univ, Dept Environm Sci, Aquat Ecol & Water Qual Management Grp, Wageningen, Netherlands; 2.Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA 92697 USA; 3.Wageningen Univ, Dept Environm Sci, Resource Ecol Grp, Wageningen, Netherlands; 4.Univ Utrecht, Copernicus Inst Sustainable Dev, Dept Environm Sci, Utrecht, Netherlands; 5.Open Univ, Fac Management Sci & Technol, Heerlen, Netherlands; 6.Univ Barcelona, Dept Evolutionary Biol Ecol & Environm Sci, Barcelona, Spain; 7.Nanjing Univ, Sch Life Sci, Nanjing, Jiangsu, Peoples R China |
推荐引用方式 GB/T 7714 | Staal, Arie,van Nes, Egbert H.,Hantson, Stijn,et al. Resilience of tropical tree cover: The roles of climate, fire, and herbivory[J]. GLOBAL CHANGE BIOLOGY,2018,24(11):5096-5109. |
APA | Staal, Arie.,van Nes, Egbert H..,Hantson, Stijn.,Holmgren, Milena.,Dekker, Stefan C..,...&Scheffer, Marten.(2018).Resilience of tropical tree cover: The roles of climate, fire, and herbivory.GLOBAL CHANGE BIOLOGY,24(11),5096-5109. |
MLA | Staal, Arie,et al."Resilience of tropical tree cover: The roles of climate, fire, and herbivory".GLOBAL CHANGE BIOLOGY 24.11(2018):5096-5109. |
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