Mark Kirk, from Murray State University and Allegheny College in the USA, and colleagues, used a 32 year mark–recapture dataset investigating 717 Arizona tiger salamanders (Ambystoma mavortium nebulosum), in the context of climate and population density. While longer growing seasons directly favoured terrestrial metamorphic outcomes, climate impacts including long overwintering cold spells and light snowpacks indirectly favoured aquatic paedomorphic outcomes. The work highlights the complexity in projecting plasticity outcomes, and the need for long-term studies of natural populations to understand interacting selective pressures.

Original reference: J. Anim. Ecol. https://doi.org/10.1111/1365-2656.14187 (2024)

来自美国默里州立大学和阿勒格尼学院的 Mark Kirk 及其同事使用了一个 32 年的标记重新捕获数据集，在气候和种群密度的背景下调查了 717 只亚利桑那虎蝾螈 （Ambystoma mavortium nebulosum）。虽然较长的生长季节直接有利于陆地结果，但气候影响，包括长时间越冬的寒潮和小雪层，间接有利于水生结果。这项工作强调了预测可塑性结果的复杂性，以及对自然种群进行长期研究以了解相互作用的选择压力的必要性。

原始参考：J. Anim. Ecol.https://doi.org/10.1111/1365-2656.14187 （2024）