Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/ele.13470 |
Life-history strategy varies with the strength of competition in a food-limited ungulate population | |
Kentie, Rosemarie1,2; Clegg, Sonya M.1,3; Tuljapurkar, Shripad4; Gaillard, Jean-Michel5; Coulson, Tim1 | |
2020-02-23 | |
发表期刊 | ECOLOGY LETTERS
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ISSN | 1461-023X |
EISSN | 1461-0248 |
出版年 | 2020 |
卷号 | 23期号:5页码:811-820 |
文章类型 | Article |
语种 | 英语 |
国家 | England; Netherlands; USA; France |
英文摘要 | Fluctuating population density in stochastic environments can contribute to maintain life-history variation within populations via density-dependent selection. We used individual-based data from a population of Soay sheep to examine variation in life-history strategies at high and low population density. We incorporated life-history trade-offs among survival, reproduction and body mass growth into structured population models and found support for the prediction that different life-history strategies are optimal at low and high population densities. Shorter generation times and lower asymptotic body mass were selected for in high-density environments even though heavier individuals had higher probabilities to survive and reproduce. In contrast, greater asymptotic body mass and longer generation times were optimal at low population density. If populations fluctuate between high density when resources are scarce, and low densities when they are abundant, the variation in density will generate fluctuating selection for different life-history strategies, that could act to maintain life-history variation. |
英文关键词 | density dependence evolution IPM K-selection life history life-history trade-offs population dynamics r-selection Soay sheep stochasticity |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000515050900001 |
WOS关键词 | K-SELECTION ; R-SELECTION ; EVOLUTIONARY DEMOGRAPHY ; GENERATION TIME ; SLOW LIFE ; DENSITY ; DYNAMICS ; FITNESS ; GROWTH ; TRAITS |
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/279121 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Oxford, Dept Zool, Oxford OX1 3PS, England; 2.Univ Utrecht, NIOZ Royal Netherlands Inst Sea Res, Dept Coastal Syst, POB 59, NL-1790 AB Den Burg, Texel, Netherlands; 3.Univ Oxford, Edward Grey Inst, Dept Zool, Oxford OX1 3PS, England; 4.Stanford Univ, Dept Biol, Stanford, CA 94305 USA; 5.Univ Claude Bernard Lyon 1, UMR 5558 Biometrie & Biol Evolut, Batiment G Mendel,43 Blvd 11 Novembre 1918, F-69622 Villeurbanne, France |
推荐引用方式 GB/T 7714 | Kentie, Rosemarie,Clegg, Sonya M.,Tuljapurkar, Shripad,et al. Life-history strategy varies with the strength of competition in a food-limited ungulate population[J]. ECOLOGY LETTERS,2020,23(5):811-820. |
APA | Kentie, Rosemarie,Clegg, Sonya M.,Tuljapurkar, Shripad,Gaillard, Jean-Michel,&Coulson, Tim.(2020).Life-history strategy varies with the strength of competition in a food-limited ungulate population.ECOLOGY LETTERS,23(5),811-820. |
MLA | Kentie, Rosemarie,et al."Life-history strategy varies with the strength of competition in a food-limited ungulate population".ECOLOGY LETTERS 23.5(2020):811-820. |
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