| 来源类型 | Article |
| 规范类型 | 其他 |
| DOI | 10.1371/journal.pone.0138444 |
| IBSEM: an individual-based Atlantic salmon population model. | |
| Castellani M; Heino M; Gilbey J; Araki H; Svasand T; Glover KA | |
| 发表日期 | 2015 |
| 出处 | PLoS ONE 10 (9): e0138444 |
| 出版年 | 2015 |
| 语种 | 英语 |
| 摘要 | Ecology and genetics can influence the fate of individuals and populations in multiple ways. However, to date, few studies consider them when modelling the evolutionary trajectory of populations faced with admixture with non-local populatons. For the Atlantic salmon, a model incorporating these elements is urgently needed because many populations are challenged with gene-flow from non-local and domesticated conspecifics. We developed an Individual-Based Salmon Eco-genetic Model (IBSEM) to simulate the demogaphic and population genetic change of an Atlantic salmon population through its entire life-cycle. Processes such as growth, mortality, and maturation are simulated through stochastic procedures, which take into account environmental variables as well as the genotype of the individuals. IBSEM is based upon detailed empirical data from salmon biology, and parameterized to reproduce the environmental conditions and the characteristics of a wild population inhabiting a Norwegian river. Simulations demonstrated that the model consistently and reliably reproduces the characteristics of the population. Moreover, in absence of farmed escapees, the modelled populations each an evolutionary equilibrium that is similar to our definition of a 'wild' genotype. We assessed the sensitivity of the model in the face of assumptions made on the fitness differences between farm and wild salmon, and evaluated the role of straying as a buffering mechanism against the intrusion of farm genes into wild populations. These results demonstrate that IBSEM is able to capture the evolutionary forces shaping the life history of wild salmon and is therefore able to model the response of populations under environmental and genetic stressors. |
| 主题 | Evolution and Ecology (EEP) |
| 关键词 | genetic model genotype life cycle life history maturation mortality population model river Salmo salar stochastic model |
| URL | http://pure.iiasa.ac.at/id/eprint/11331/ |
| 来源智库 | International Institute for Applied Systems Analysis (Austria) |
| 引用统计 | |
| 资源类型 | 智库出版物 |
| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/130203 |
| 推荐引用方式 GB/T 7714 | Castellani M,Heino M,Gilbey J,et al. IBSEM: an individual-based Atlantic salmon population model.. 2015. |
| 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 | ||
| IBSEM%20An%20Individ（5109KB） | 智库出版物 | 限制开放 | CC BY-NC-SA | 浏览 | ||
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