globalchange  > 影响、适应和脆弱性
DOI: 10.1002/2016MS000904
Scopus记录号: 2-s2.0-85038257118
论文题名:
Integrating Herbivore Population Dynamics Into a Global Land Biosphere Model: Plugging Animals Into the Earth System
作者: Dangal S; R; S; , Tian H; , Lu C; , Ren W; , Pan S; , Yang J; , Di Cosmo N; , Hessl A
刊名: Journal of Advances in Modeling Earth Systems
ISSN: 19422466
出版年: 2017
卷: 9, 期:8
起始页码: 2920
结束页码: 2945
语种: 英语
英文关键词: Animals ; Biogeochemistry ; Biospherics ; Carbon ; Dynamics ; Ecology ; Ecosystems ; Mammals ; Population dynamics ; Aboveground net primary productivity ; Biogeochemical cycle ; Environmental factors ; Grassland ; Grazing ; Heterotrophic respiration ; Savanna ; Terrestrial biosphere ; Vegetation ; aboveground production ; biosphere ; climate effect ; environmental factor ; grassland ; grazing ; herbivore ; mammal ; mortality ; respiration ; savanna ; Mongolia ; Animalia ; Bos ; Capra hircus ; Equidae ; Mammalia ; Ovis aries
英文摘要: Mammalian herbivores are an essential component of grassland and savanna ecosystems, and with feedbacks to the climate system. To date, the response and feedbacks of mammalian herbivores to changes in both abiotic and biotic factors are poorly quantified and not adequately represented in the current global land surface modeling framework. In this study, we coupled herbivore population dynamics in a global land model (the Dynamic Land Ecosystem Model, DLEM 3.0) to simulate populations of horses, cattle, sheep, and goats, and their responses to changes in multiple environmental factors at the site level across different continents during 1980–2010. Simulated results show that the model is capable of reproducing observed herbivore population dynamics across all sites for these animal groups. Our simulation results also indicate that during this period, climate extremes led to a maximum mortality of 27% of the total herbivores in Mongolia. Across all sites, herbivores reduced aboveground net primary productivity (ANPP) and heterotrophic respiration (Rh) by 14% and 15%, respectively (p < 0.05). With adequate parameterization, the model can be used for historical assessment and future prediction of mammalian herbivore populations and their relevant impacts on biogeochemical cycles. Our simulation results demonstrate a strong coupling between primary producers and consumers, indicating that inclusion of herbivores into the global land modeling framework is essential to better understand the potentially large effect of herbivores on carbon cycles in grassland and savanna ecosystems. © 2017. The Authors.
Citation statistics:
被引频次[WOS]:20   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75684
Appears in Collections:影响、适应和脆弱性
气候变化与战略

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作者单位: International Center for Climate and Global Change Research and School of Forestry and Wildlife Sciences, Auburn University, Auburn, AL, United States; Research Center for Eco-Environmental Sciences, State Key Laboratory of Urban and Regional Ecology, Chinese Academy of Sciences, Beijing, China; Department of Ecology, Evolutionary, and Organismal Biology, Iowa State University, Ames, IA, United States; Department of Plant and Soil Sciences, College of Agriculture, Food and Environment, University of Kentucky, Lexington, KY, United States; School of Historical Studies, Institute for Advanced Study, Princeton, NJ, United States; Department of Geology and Geography, West Virginia University, Morgantown, WV, United States

Recommended Citation:
Dangal S,R,S,et al. Integrating Herbivore Population Dynamics Into a Global Land Biosphere Model: Plugging Animals Into the Earth System[J]. Journal of Advances in Modeling Earth Systems,2017-01-01,9(8)
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