Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/ele.13334 |
Predation risk influences food-web structure by constraining species diet choice | |
Ho, Hsi-Cheng1; Tylianakis, Jason M.1,2; Zheng, Jonathan X.3; Pawar, Samraat1 | |
2019-08-07 | |
发表期刊 | ECOLOGY LETTERS
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ISSN | 1461-023X |
EISSN | 1461-0248 |
出版年 | 2019 |
卷号 | 22期号:11页码:1734-1745 |
文章类型 | Article |
语种 | 英语 |
国家 | England; New Zealand |
英文摘要 | The foraging behaviour of species determines their diet and, therefore, also emergent food-web structure. Optimal foraging theory (OFT) has previously been applied to understand the emergence of food-web structure through a consumer-centric consideration of diet choice. However, the resource-centric viewpoint, where species adjust their behaviour to reduce the risk of predation, has not been considered. We develop a mechanistic model that merges metabolic theory with OFT to incorporate the effect of predation risk on diet choice to assemble food webs. This 'predation-risk-compromise' (PR) model better captures the nestedness and modularity of empirical food webs relative to the classical optimal foraging model. Specifically, compared with optimal foraging alone, risk-mitigated foraging leads to more-nested but less-modular webs by broadening the diet of consumers at intermediate trophic levels. Thus, predation risk significantly affects food-web structure by constraining species' ability to forage optimally, and needs to be considered in future work. |
英文关键词 | Diet choice food-web structure food-web topology metabolic theory modularity nestedness optimal foraging predation risk |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000480205400001 |
WOS关键词 | ECOLOGICAL NETWORKS ; BODY-SIZE ; PREY INTERACTIONS ; SAMPLING EFFORT ; STABILITY ; CONSEQUENCES ; DYNAMICS ; BEHAVIOR ; COMPARTMENTALIZATION ; DIMENSIONALITY |
WOS类目 | Ecology |
WOS研究方向 | 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/185925 |
专题 | 资源环境科学 |
作者单位 | 1.Imperial Coll London, Dept Life Sci, Silwood Pk Campus, Ascot SL5 7PY, Berks, England; 2.Univ Canterbury, Sch Biol Sci, Private Bag 4800, Christchurch, New Zealand; 3.Imperial Coll London, Dept Elect & Elect Engn, South Kensington Campus, London SW7 2AZ, England |
推荐引用方式 GB/T 7714 | Ho, Hsi-Cheng,Tylianakis, Jason M.,Zheng, Jonathan X.,et al. Predation risk influences food-web structure by constraining species diet choice[J]. ECOLOGY LETTERS,2019,22(11):1734-1745. |
APA | Ho, Hsi-Cheng,Tylianakis, Jason M.,Zheng, Jonathan X.,&Pawar, Samraat.(2019).Predation risk influences food-web structure by constraining species diet choice.ECOLOGY LETTERS,22(11),1734-1745. |
MLA | Ho, Hsi-Cheng,et al."Predation risk influences food-web structure by constraining species diet choice".ECOLOGY LETTERS 22.11(2019):1734-1745. |
条目包含的文件 | 条目无相关文件。 |
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