Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/ele.13430 |
Mean growth rate when rare is not a reliable metric for persistence of species | |
Pande, Jayant1; Fung, Tak2; Chisholm, Ryan2; Shnerb, Nadav M.1 | |
2019-11-21 | |
发表期刊 | ECOLOGY LETTERS |
ISSN | 1461-023X |
EISSN | 1461-0248 |
出版年 | 2020 |
卷号 | 23期号:2页码:274-282 |
文章类型 | Article |
语种 | 英语 |
国家 | Israel; Singapore |
英文摘要 | The coexistence of many species within ecological communities poses a long-standing theoretical puzzle. Modern coexistence theory (MCT) and related techniques explore this phenomenon by examining the chance of a species population growing from rarity in the presence of all other species. The mean growth rate when rare, E[r], is used in MCT as a metric that measures persistence properties (like invasibility or time to extinction) of a population. Here we critique this reliance on E[r] and show that it fails to capture the effect of temporal random abundance variations on persistence properties. The problem becomes particularly severe when an increase in the amplitude of stochastic temporal environmental variations leads to an increase in E[r], since at the same time it enhances random abundance fluctuations and the two effects are inherently intertwined. In this case, the chance of invasion and the mean extinction time of a population may even go down as E[r] increases. |
英文关键词 | Coexistence environmental stochasticity invasibility lottery model mean growth rate mean time to extinction modern coexistence theory persistence |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000497787800001 |
WOS关键词 | ENVIRONMENTAL STOCHASTICITY ; COEXISTENCE MECHANISMS ; TROPICAL FORESTS ; VARIABILITY ; MAINTENANCE ; NICHE |
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/224452 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Bar Ilan Univ, Dept Phys, IL-52900 Ramat Gan, Israel; 2.Natl Univ Singapore, Dept Biol Sci, Singapore 117543, Singapore |
推荐引用方式 GB/T 7714 | Pande, Jayant,Fung, Tak,Chisholm, Ryan,et al. Mean growth rate when rare is not a reliable metric for persistence of species[J]. ECOLOGY LETTERS,2019,23(2):274-282. |
APA | Pande, Jayant,Fung, Tak,Chisholm, Ryan,&Shnerb, Nadav M..(2019).Mean growth rate when rare is not a reliable metric for persistence of species.ECOLOGY LETTERS,23(2),274-282. |
MLA | Pande, Jayant,et al."Mean growth rate when rare is not a reliable metric for persistence of species".ECOLOGY LETTERS 23.2(2019):274-282. |
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