| 来源类型 | Monograph (IIASA Interim Report)
|
| 规范类型 | 报告
|
| Estimating Reaction Norms for Age and Size at Maturation When Age at First Reproduction is Unknown. |
| Barot S; Heino M; O'Brien L; Dieckmann U
|
| 发表日期 | 2003
|
| 出版者 | IIASA, Laxenburg, Austria: IR-03-043
|
| 出版年 | 2003
|
| 语种 | 英语
|
| 摘要 | We describe a novel method to estimate the probabilities of maturing at age as a function of size; these probabilities can often be interpreted as probabilistic reaction norms for age and size at maturation. Such estimations are useful for describing maturation process independently from the processes of growth and mortality, and they can also help to disentangle phenotypic plasticity from evolutionary changes in maturation. The estimation method can be used when mature and immature individuals are representatively sampled over two consecutive seasons, even when maturing individuals are not distinguished. Confidence intervals are derived for the reaction norm parameters using a bootstrap approach. Using simulated data, the method is shown to be asymptotically unbiased and robust to moderate violations of the main simplifying assumptions. However, it is relatively sensitive to small sample sizes: the method is not robust when fewer than about 100 individuals (mature and immature) are sampled from a cohort at a certain age. The method is illustrated by an application to Georges Bank cod stock (Gadus morhua) but can be used for any type of organism. |
| 主题 | Adaptive Dynamics Network (ADN)
|
| URL | http://pure.iiasa.ac.at/id/eprint/7040/
|
| 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/125242
|
推荐引用方式
GB/T 7714 |
Barot S,Heino M,O'Brien L,et al. Estimating Reaction Norms for Age and Size at Maturation When Age at First Reproduction is Unknown.. 2003.
|
|
文件名：
|
IR-03-043.pdf
|
|
格式：
|
Adobe PDF
|
此文件暂不支持浏览
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
