| 来源类型 | Monograph (IIASA Interim Report) |
| 规范类型 | 报告 |
| Impact of Environmental Covariation in Growth and Mortality on Evolving Maturation Reaction Norms. | |
| Marty L; Dieckmann U; Rochet M-J; Ernande B | |
| 发表日期 | 2011 |
| 出版者 | IIASA, Laxenburg, Austria: IR-11-008 |
| 出版年 | 2011 |
| 语种 | 英语 |
| 摘要 | Maturation age and size have important fitness consequences through their effects on survival probabilities and body sizes. The evolution of maturation reaction norms in response to environmental covariation in growth and mortality is therefore a key subject of life-history theory. The eco-evolutionary model we present and analyze here incorporates critical features earlier studies of evolving maturation reaction norms have often neglected: the tradeoff between growth and reproduction, source-sink population structure, and population regulation through density-dependent growth and fecundity. We report the following findings. First, the evolutionarily optimal age at maturation can be decomposed into the sum of a density-dependent and a density-independent component. These components measure, respectively, the hypothetical negative age at which an individual's length would be zero and the delay in maturation relative to this offset. Second, along any growth trajectory, individuals mature earlier when mortality is higher. This allows us to deduce, third, how the shapes of evolutionarily optimal maturation reaction norms depend on the covariation between growth and mortality (positive or negative, linear or curvilinear, and deterministic or probabilistic). Providing eco-evolutionary explanations for many alternative reaction-norm shapes, our results appear to be in good agreement with current empirical knowledge on maturation dynamics. |
| 主题 | Evolution and Ecology (EEP) |
| URL | http://pure.iiasa.ac.at/id/eprint/9826/ |
| 来源智库 | International Institute for Applied Systems Analysis (Austria) |
| 资源类型 | 智库出版物 |
| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/125835 |
| 推荐引用方式 GB/T 7714 | Marty L,Dieckmann U,Rochet M-J,et al. Impact of Environmental Covariation in Growth and Mortality on Evolving Maturation Reaction Norms.. 2011. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 资源类型 | 版本类型 | 开放类型 | 使用许可 | ||
| IR-11-008.pdf（766KB） | 智库出版物 | 限制开放 | CC BY-NC-SA | 浏览 | ||
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