全球智库信息集成服务系统(G2TT): Isolating the influence of growth rate on maturation patterns in the smallmouth bass (Micropterus dolomieu).

G2TT

来源类型	Article
规范类型	其他
DOI	10.1139/F05-045
	Isolating the influence of growth rate on maturation patterns in the smallmouth bass (Micropterus dolomieu).
	Dunlop ES; Orendorff JA; Shuter BJ; Ridgway MS
发表日期	2005
出处	Canadian Journal of Fisheries and Aquatic Sciences 62 (4): 844-853
出版年	2005
语种	英语
摘要	In this study, we examine the divergence in growth and maturation between two populations of smallmouth bass (Micropterus dolomieu) introduced from a common source a century ago. To determine if the divergence in maturation is simply a plastic response to differences in growth rate, we use a new approach to estimate and then compare the probabilistic maturation reaction norms (PMRNs) for each population. The PMRNs for 5-year-old males are similar in the two populations, suggesting that the observed divergence in maturation is largely a plastic response to growth rate differences. For one population, we document the time course of maturation changes for the 60-year period from 1937 through 1990; while the mean length at maturation for 5-year-old males exhibits a steady downward trend (beginning at 31 cm and ending at 26 cm), their PMRNs vary over a much narrower range (25-27 cm) and do not exhibit a consistent temporal trend. These observations are consistent with the hypothesis that most of the observed change in maturation since introduction is a product of phenotypic plasticity, driven by environmentally based differences in growth rate. Our study provides an instructive example of how the PMRN approach can be used to isolate the role of growth rate variation in generating life history differences.
主题	Adaptive Dynamics Network (ADN)
URL	http://pure.iiasa.ac.at/id/eprint/7511/
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/128470
推荐引用方式 GB/T 7714	Dunlop ES,Orendorff JA,Shuter BJ,et al. Isolating the influence of growth rate on maturation patterns in the smallmouth bass (Micropterus dolomieu).. 2005.