The impact of temperature on population and community dynamics
The impact of temperature on population and community dynamics
复制标题
温度对人口和群落动态的影响
DOI：
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
David A. Vasseur
中科院分区：
文献类型：
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作者：
David A. Vasseur
在目前由于人为气候变化而不断变化的无数环境变量中，温度是最普遍和研究最充分的变量之一。温度直接影响生命率和生态阈值，决定人口增长或下降的速度，许多研究试图确定这些影响如何在人口和社区层面达到顶峰。本章概述了这一领域的理论工作，并详细介绍了我们对温度与生命率和阈值之间关系的日益理解如何带来新的见解和挑战。本章的后面几节揭示了一个关键原则，以指导正在进行的关于几乎所有人口和社区模型的关键参数的温度依赖性的辩论：承载能力。由此，一个简单的模型被用来演示如何之间的联系的人口增长和承载能力的热敏感性确定动态和灭绝的倾向，在变暖的环境。
Of the myriad of environmental variables that are currently in flux due to anthropogenic climate change, temperature is one of the most ubiquitous and well-studied. Temperature directly influences the vital rates and ecological thresholds that determine how quickly populations grow or decline and many studies have sought to determine how these influences culminate at the population and community level. This chapter surveys the theoretical work in this area and details how our growing understanding of the relationships between temperature and vital rates and thresholds has led to new insights and challenges. The latter sections of the chapter reveal a key principle to guide the ongoing debate about the temperature-dependence of a key parameter underlying nearly all population and community models: the carrying capacity. From this, a simple model is used to demonstrate how linkages between the thermal sensitivity of population growth and carrying capacity determine dynamics and the propensity for extinction in warming environments.