Data and statistical code from: Population differences in the effect of context on personality in an invasive lizard

Within populations, individuals often differ consistently in their average level of behavior (i.e. animal personality), as well as their response to environmental change (i.e. behavioral plasticity). Thus, changes in environmental conditions might be expected to mediate the structure of animal personality traits. However, it is currently not well understood how personality traits change in response to environmental conditions, and whether this effect is consistent across multiple populations within the same species. Accordingly, we investigated variation in personality traits across two ecological contexts in the invasive delicate skink (Lampropholis delicata). Specifically, lizards from three different populations were repeatedly measured for individual activity in group behavioral assays under differing levels of food availability. We found that environmental context had a clear effect on the structure of lizard personality, where activity rates were not repeatable in the absence of f...

在种群内部，个体的平均行为水平（即动物性格（animal personality））以及对环境变化的响应（即行为可塑性（behavioral plasticity））往往存在稳定的个体差异。因此，环境条件的变化或可调控动物性格性状的结构组成。然而，目前学界尚未明确性格性状如何响应环境条件发生改变，且同一物种内的多个种群间是否会表现出一致的调控效应。据此，本研究以入侵物种纤弱石龙子（Lampropholis delicata）为研究对象，探究了两种生态情境下的性格性状变异情况。具体而言，研究人员对来自三个不同种群的石龙子，在不同食物可获得性水平下开展的群体行为测试中，重复测定了其个体活动水平。本研究发现，环境情境对石龙子的性格结构具有显著调控作用：在缺乏[原文未完整表述的相关条件]时，其活动速率不具备可重复性。