Habitat choice stabilizes metapopulation dynamics through increased ecological specialisation
Habitat choice stabilizes metapopulation dynamics through increased ecological specialisation
复制标题
栖息地选择通过增加生态专业化来稳定种群动态
DOI：
10.1101/267575
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
D. Bonte
中科院分区：
文献类型：
--
作者：
Frederik Mortier;S. Jacob;M. Vandegehuchte;D. Bonte
扩散是负责个体和基因在当地种群中传播的关键特征，从而产生生态进化相互作用。特别是在异质集合种群中，扩散、种群动态和局部适应演化之间存在着紧密的耦合。在这方面，目前的理论预测扩散，以抵消生态专业化的重新分配当地选择的表型（即迁移负荷）。然而，在自然界中，我们观察到一些专家表现出很强的分散能力。栖息地选择知情的扩散决定，提供了一个可能的机制，为个人匹配的环境，他们的表型，从而使持久的进化生态专业化。这些明智的决定如何影响扩散和生态专业化的演变，以及这些，反过来，如何影响集合种群动态还有待确定。通过以个人为基础的建模，我们发现，知情的决定，在离开和结算的扩散和通才的演变，有利于高度分散的专家。定居点的选择最有效地抑制了生态专业化的扩散。此外，栖息地的选择稳定当地和集合种群的人口，因为在各个层次的分散倾向的生态专业化的维护。我们主张在空间结构化的生态模型中考虑栖息地选择，以改善面对环境变化的人口预测。
Dispersal is a key trait responsible for the spread of individuals and genes among local populations, thereby generating eco-evolutionary interactions. Especially in heterogeneous metapopulations, a tight coupling between dispersal, population dynamics and the evolution of local adaptation is expected. In this respect, current theory predicts dispersal to counteract ecological specialisation by redistributing locally selected phenotypes (i.e. migration load). However, in nature we observe that some specialists exhibit a strong dispersal capacity. Habitat choice following informed dispersal decisions, provides a possible mechanism for individuals to match the environment to their phenotype, thereby enabling the persistence of evolved ecological specialisation. How such informed decisions affect the evolution of dispersal and ecological specialisation and how these, in turn, influence metapopulation dynamics is yet to be determined. By means of individual-based modelling, we show that informed decisions on both departure and settlement decouples the evolution of dispersal and generalism, favouring highly dispersive specialists. Choice at settlement decouples dispersal from ecological specialisation most effectively. Additionally, habitat choice stabilizes local and metapopulation demography because of the maintenance of ecological specialisation at all levels of dispersal propensity. We advocate considering habitat choice in spatially structured ecological models to improve demographic predictions in the face of environmental change.
影响因子：
8.8
作者：
Poisot T;Bever JD;Nemri A;Thrall PH;Hochberg ME
通讯作者：
Hochberg ME
栖息地匹配和表型的空间异质性：对集合种群和元群落功能的影响
影响因子：
1.9
作者：
Bestion;Legrand;Clobert
通讯作者：
Clobert
影响因子：
5.9
作者：
Cote, Julien;Bestion, Elvire;Baguette, Michel
通讯作者：
Baguette, Michel