全球智库信息集成服务系统(G2TT): Evolution of mixed maturation strategies in semelparous life histories: The crucial role of dimensionality of feedback environment.

G2TT

来源类型	Article
规范类型	其他
DOI	10.1098/rstb.1997.0146
	Evolution of mixed maturation strategies in semelparous life histories: The crucial role of dimensionality of feedback environment.
	Heino M; Metz JAJ; Kaitala V
发表日期	1997
出处	Philosophical Transactions of the Royal Society B: Biological Sciences 352 (1356): 1647-1655
出版年	1997
语种	英语
摘要	We study the evolution of age at maturity in a semelparous life history with two age classes. An individual may either breed in the first year of its life and die, or delay breeding to the second year. In this setting a mixed strategy means that a fraction of the individual's offspring breed in the first possible breeding event, while the remaining fraction delay breeding. Current theory seems to imply that mixed strategies are not evolutionarily stable strategies (ESSs) under a steady-state population dynamical regime. We show that a two-dimensional feedback environment may allow the evolution of mixed age at maturity. Furthermore, different phenotypes need to perceive the environment differently. The biological reasoning behind these conditions is different resource usage or predation pressure between two age classes. Thus, the conventional explanations for the occurrence of mixed strategies in natural populations, environmental stochasticity or complex dynamics, are not needed.
主题	Adaptive Dynamics Network (ADN)
URL	http://pure.iiasa.ac.at/id/eprint/5112/
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/127647
推荐引用方式 GB/T 7714	Heino M,Metz JAJ,Kaitala V. Evolution of mixed maturation strategies in semelparous life histories: The crucial role of dimensionality of feedback environment.. 1997.