PHENOTYPIC PLASTICITY AS A STATE-DEPENDENT LIFE-HISTORY DECISION
PHENOTYPIC PLASTICITY AS A STATE-DEPENDENT LIFE-HISTORY DECISION
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DOI：
10.1007/bf02214164
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发表时间：
1992-05-01
影响因子：
1.9
通讯作者：
MCNAMARA, JM
中科院分区：
文献类型：
--
作者：
HOUSTON, AI;MCNAMARA, JM
如果一种基因能够产生一系列依赖于环境的表型，那么它就被认为表现出表型可塑性。可塑性可能是适应性的，也可能是非适应性的。我们认为可塑性是一种遗传决定的特征，因此找到了动物对环境的最佳反应。以生殖努力为基础的例子说明了这种最佳反应的各个方面。我们调查了塑料的选择压力，而不是固定的策略。用一个具有空间异质性的例子将我们的方法与Stearns和Koella(1986)的方法进行了比较。
A genotype is said to show phenotypic plasticity if it can produce a range of environmentally dependent phenotypes. Plasticity may or may not be adaptive. We consider plasticity as a genetically determined trait and thus find the optimal response of an animal to its environment. Various aspects of this optimal response are illustrated with examples based on reproductive effort. We investigate the selection pressure for plastic as opposed to fixed strategies. An example with spatial heterogeneity is used to compare our approach with that of Stearns and Koella (1986).