The adaptive dynamics of function-valued traits
The adaptive dynamics of function-valued traits
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DOI：
10.1016/j.jtbi.2005.12.002
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发表时间：
2006-07-21
影响因子：
2
通讯作者：
Parvinen, Kalle
中科院分区：
文献类型：
--
作者：
Dieckmann, Ulf;Heino, Mikko;Parvinen, Kalle
这项研究将适应动力学的框架扩展到了功能价值特征。这样的适应性特征自然地出现在各种各样的环境中：可变或异质的环境，年龄结构的种群，表型可塑性，生长和形式的模式，资源梯度，以及进化生态学的许多其他领域。适应动力学理论允许分析这些性状在密度依赖和频率依赖的选择压力下的长期进化，这些选择压力来自进化种群与其生态环境之间的反馈。从个人为基础的考虑，我们推导出方程描述的预期动态的一个功能值性状在无性繁殖种群的突变限制进化，从而推广的典型方程的适应性动态功能值性状。我们详细解释了如何解释各种进化约束的自适应动态的功能值性状。为了说明我们的方法的实用性，我们提出了应用程序的两个具体的例子，地址，分别是，代谢投资策略的演变沿着资源梯度，和随时间变化的环境中的季节性开花时间表的演变。(c)2005爱思唯尔有限公司保留所有权利。
This study extends the framework of adaptive dynamics to function-valued traits. Such adaptive traits naturally arise in a great variety of settings: variable or heterogeneous environments, age-structured populations, phenotypic plasticity, patterns of growth and form, resource gradients, and in many other areas of evolutionary ecology. Adaptive dynamics theory allows analysing the long-term evolution of such traits under the density-dependent and frequency-dependent selection pressures resulting from feedback between evolving populations and their ecological environment. Starting from individual-based considerations, we derive equations describing the expected dynamics of a function-valued trait in asexually reproducing populations under mutation-limited evolution, thus generalizing the canonical equation of adaptive dynamics to function-valued traits. We explain in detail how to account for various kinds of evolutionary constraints on the adaptive dynamics of function-valued traits. To illustrate the utility of our approach, we present applications to two specific examples that address, respectively, the evolution of metabolic investment strategies along resource gradients, and the evolution of seasonal flowering schedules in temporally varying environments. (c) 2005 Elsevier Ltd. All rights reserved.