Gozlan Rodolphe Elie, Záhorská Eva, Cherif Emira, Asaeda Takashi, Britton John Robert, Chang Cha-Ho, Hong To, Miranda Rafael, Musil Jiří, Povz Meta, Tarkan Ali Serhan, Tricarico Elena, Trichkova Teodora, Verreycken Hugo, Weiperth Andrej, Witkowski Andrej, Zamora Lluis, Zweimueller Irene, Zhao Yahui, Esmaeili Hamid Reza, Combe Marine
ISEM UMR226 CNRS IRD EPHE Université de Montpellier Montpellier France.
Faculty of Natural Sciences Department of Ecology Comenius University Bratislava Slovakia.
Ecol Evol. 2020 Aug 3;10(16):8623-8633. doi: 10.1002/ece3.6521. eCollection 2020 Aug.
Rapid adaptation to global change can counter vulnerability of species to population declines and extinction. Theoretically, under such circumstances both genetic variation and phenotypic plasticity can maintain population fitness, but empirical support for this is currently limited. Here, we aim to characterize the role of environmental and genetic diversity, and their prior evolutionary history (via haplogroup profiles) in shaping patterns of life history traits during biological invasion. Data were derived from both genetic and life history traits including a morphological analysis of 29 native and invasive populations of topmouth gudgeon coupled with climatic variables from each location. General additive models were constructed to explain distribution of somatic growth rate (SGR) data across native and invasive ranges, with model selection performed using Akaike's information criteria. Genetic and environmental drivers that structured the life history of populations in their native range were less influential in their invasive populations. For some vertebrates at least, fitness-related trait shifts do not seem to be dependent on the level of genetic diversity or haplogroup makeup of the initial introduced propagule, nor of the availability of local environmental conditions being similar to those experienced in their native range. As long as local conditions are not beyond the species physiological threshold, its local establishment and invasive potential are likely to be determined by local drivers, such as density-dependent effects linked to resource availability or to local biotic resistance.
快速适应全球变化可以对抗物种种群数量下降和灭绝的脆弱性。从理论上讲，在这种情况下，遗传变异和表型可塑性都可以维持种群适应性，但目前对此的实证支持有限。在这里，我们旨在描述环境和遗传多样性及其先前的进化历史（通过单倍群概况）在生物入侵过程中塑造生活史特征模式方面的作用。数据来自遗传和生活史特征，包括对29个本地和入侵种群的麦穗鱼进行形态分析，并结合每个地点的气候变量。构建广义相加模型来解释体细胞生长率（SGR）数据在本地和入侵范围内的分布，并使用赤池信息准则进行模型选择。在其原生范围内构建种群生活史的遗传和环境驱动因素对其入侵种群的影响较小。至少对于一些脊椎动物来说，与适应性相关的性状变化似乎并不取决于初始引入繁殖体的遗传多样性水平或单倍群组成，也不取决于当地环境条件是否与它们在原生范围内经历的条件相似。只要当地条件不超出物种的生理阈值，其在当地的建立和入侵潜力可能由当地驱动因素决定，例如与资源可用性或当地生物抗性相关的密度依赖效应。
