Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/s41558-019-0513-x |
A simple model predicts how warming simplifies wild food webs | |
O&1; 39;Gorman, Eoin J.2 | |
2019-08-01 | |
发表期刊 | NATURE CLIMATE CHANGE |
ISSN | 1758-678X |
EISSN | 1758-6798 |
出版年 | 2019 |
卷号 | 9期号:8页码:611-+ |
文章类型 | Article |
语种 | 英语 |
国家 | England; Switzerland; Iceland |
英文摘要 | Warming increases the metabolic demand of consumers(1), strengthening their feeding interactions(2). This could alter energy fluxes(3-5) and even amplify extinction rates within the food web(6-8). Such effects could simplify the structure and dynamics of ecological networks(9,10), although an empirical test in natural systems has been lacking. Here, we tested this hypothesis by characterizing around 50,000 directly observed feeding interactions across 14 naturally heated stream ecosystems(11-15). We found that higher temperature simplified food-web structure and shortened the pathways of energy flux between consumers and resources. A simple allometric diet breadth model(10,16) predicted 68-82% of feeding interactions and the effects of warming on key food-web properties. We used model simulations to identify the underlying mechanism as a change in the relative diversity and abundance of consumers and their resources. This model shows how warming can reduce the stability of aquatic ecosystems by eroding the structural integrity of the food web. Given these fundamental drivers, such responses are expected to be manifested more broadly and could be predicted using our modelling framework and knowledge of how warming alters some routinely measured characteristics of organisms. |
领域 | 资源环境 |
收录类别 | SCI-E ; SSCI |
WOS记录号 | WOS:000477738300017 |
WOS关键词 | SIZE STRUCTURE ; ECOLOGICAL NETWORKS ; ENERGY DENSITY ; TROPHIC LEVELS ; CLIMATE-CHANGE ; TEMPERATURE ; BIODIVERSITY ; STABILITY ; IMPACTS ; ROBUSTNESS |
WOS类目 | Environmental Sciences ; Environmental Studies ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
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/185798 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Essex, Sch Biol Sci, Wivenhoe Pk, Colchester, Essex, England; 2.Univ Zurich, Inst Evolutionary Biol & Environm Studies, Zurich, Switzerland; 3.Univ Warwick, Sch Life Sci, Gibbet Hill Campus, Coventry, W Midlands, England; 4.Imperial Coll London, Dept Life Sci, Silwood Pk Campus, Ascot, Berks, England; 5.Univ Exeter, Coll Life & Environm Sci, Biosci, Exeter, Devon, England; 6.Marine & Freshwater Res Inst, Reykjavik, Iceland; 7.Ctr Environm Fisheries & Aquaculture Sci, Lowestoft, Suffolk, England |
推荐引用方式 GB/T 7714 | O&,39;Gorman, Eoin J.. A simple model predicts how warming simplifies wild food webs[J]. NATURE CLIMATE CHANGE,2019,9(8):611-+. |
APA | O&,&39;Gorman, Eoin J..(2019).A simple model predicts how warming simplifies wild food webs.NATURE CLIMATE CHANGE,9(8),611-+. |
MLA | O&,et al."A simple model predicts how warming simplifies wild food webs".NATURE CLIMATE CHANGE 9.8(2019):611-+. |
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