Zoology Department, Oxford University, Oxford, UK.
School of Biological Sciences, University of Bristol, Bristol, UK.
Ecol Lett. 2022 Jun;25(6):1566-1579. doi: 10.1111/ele.14004. Epub 2022 Mar 25.
Accelerating rates of biodiversity loss underscore the need to understand how species achieve resilience-the ability to resist and recover from a/biotic disturbances. Yet, the factors determining the resilience of species remain poorly understood, due to disagreements on its definition and the lack of large-scale analyses. Here, we investigate how the life history of 910 natural populations of animals and plants predicts their intrinsic ability to be resilient. We show that demographic resilience can be achieved through different combinations of compensation, resistance and recovery after a disturbance. We demonstrate that these resilience components are highly correlated with life history traits related to the species' pace of life and reproductive strategy. Species with longer generation times require longer recovery times post-disturbance, whilst those with greater reproductive capacity have greater resistance and compensation. Our findings highlight the key role of life history traits to understand species resilience, improving our ability to predict how natural populations cope with disturbance regimes.
生物多样性丧失的速度正在加快,这突显出我们需要了解物种如何实现弹性——即抵抗和从生物干扰中恢复的能力。然而,由于对弹性定义的分歧以及缺乏大规模的分析,物种弹性的决定因素仍未得到很好的理解。在这里,我们研究了 910 种动植物自然种群的生活史如何预测它们内在的弹性能力。我们表明,通过在干扰后补偿、抵抗和恢复的不同组合,可以实现人口统计学上的弹性。我们证明,这些弹性组成部分与与物种生活节奏和繁殖策略相关的生活史特征高度相关。世代时间较长的物种需要更长的恢复时间,而繁殖能力较强的物种具有更强的抵抗力和补偿能力。我们的研究结果强调了生活史特征在理解物种弹性方面的关键作用,提高了我们预测自然种群如何应对干扰的能力。