Department of Botany, University of British Columbia, Vancouver, BC, Canada.
Department of Plant and Environmental Sciences, Weizmann Institute of Science, Rehovot, Israel.
Trends Ecol Evol. 2023 Sep;38(9):831-842. doi: 10.1016/j.tree.2023.04.004. Epub 2023 May 12.
Phenotypic plasticity enables rapid responses to environmental change, and could facilitate range shifts in response to climate change. What drives the evolution of plasticity at range edges, and the capacity of range-edge individuals to be plastic, remain unclear. Here, we propose that accurately predicting when plasticity itself evolves or mediates adaptive evolution at expanding range edges requires integrating knowledge on the demography and evolution of edge populations. Our synthesis shows that: (i) the demography of edge populations can amplify or attenuate responses to selection for plasticity through diverse pathways, and (ii) demographic effects on plasticity are modified by the stability of range edges. Our spatially explicit synthesis for plasticity has the potential to improve predictions for range shifts with climate change.
表型可塑性使生物能够快速适应环境变化，从而有助于它们在气候变化的情况下进行分布范围的转移。但是，驱动分布范围边缘的可塑性进化以及边缘个体可塑性的能力仍然不清楚。在这里，我们提出，要准确预测可塑性本身的进化或在扩展的分布范围边缘处调节适应性进化，就需要整合关于边缘种群的人口统计学和进化的知识。我们的综合研究表明：（i）边缘种群的人口统计学可以通过多种途径放大或减弱对可塑性的选择响应；（ii）对可塑性的人口统计学效应受到分布范围边缘稳定性的调节。我们对可塑性的空间明确综合研究有可能改善对气候变化下分布范围转移的预测。
