| 来源类型 | Monograph (IIASA Interim Report) |
| 规范类型 | 报告 |
| Comparing rates of contemporary evolution in life-history traits for exploited fish stocks. | |
| Devine JA; Wright PJ; Pardoe HE; Heino M | |
| 发表日期 | 2012 |
| 出版者 | IIASA, Laxenburg, Austria: IR-12-036 |
| 出版年 | 2012 |
| 语种 | 英语 |
| 摘要 | Trait evolution over time periods spanning generations, not millennia, is increasingly observed to be above the natural baseline in populations experiencing human-induced perturbations. We investigated the relative speed of trait change by comparing rates of evolution in haldanes and darwins for primarily size at maturation as measured by probabilistic maturation reaction norm midpoints for fish stocks from the Pacific, North Atlantic, Barents Sea, Eastern Baltic, and the North Sea. Rates in haldanes for 23 stocks ranged from -2.2-0.9 and from 0.5-153 in kdarwins for 26 stocks. The highest rates of evolution corresponded to the most heavily exploited stocks; rates slowed after moratoria were introduced. The estimated rates in fish life-history characteristics were comparable to other examples of human-induced evolution, and faster than naturally-induced rates. Stocks with high growth showed slower evolutionary change, even under high mortality, suggesting that compensatory somatic growth can slow the rate of trait evolution. Regardless of whether trait changes are due to exploitation or environmental factors, the costs of ignoring trait evolution are high. As management strategies should be based upon precautionary principles, the effect of changing traits must be integrated into the fisheries assessment process. |
| 主题 | Evolution and Ecology (EEP) |
| URL | http://pure.iiasa.ac.at/id/eprint/10239/ |
| 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/125879 |
| 推荐引用方式 GB/T 7714 | Devine JA,Wright PJ,Pardoe HE,et al. Comparing rates of contemporary evolution in life-history traits for exploited fish stocks.. 2012. |
| 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-12-036.pdf（460KB） | 智库出版物 | 限制开放 | CC BY-NC-SA | 浏览 | ||
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