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Predicting natural mortality rates of plants and animals

机译:预测动植物的自然死亡率

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摘要

Understanding the factors that control the mortality rates of species in their natural environments is important for understanding the structure and dynamics of populations, communities and ecosystems. Here, we test a model of natural mortality that yields explicit, quantitative predictions based on the constraints of body size and temperature on individual metabolism. Extensive field data from plants, invertebrates, fish, birds and mammals indicate that much of the heterogeneity in rates of natural mortality can be predicted, despite the many extrinsic sources of mortality in natural systems. These results suggest that common 'rule(s)' govern mortality rates in ecological communities for organisms as diverse as plants and animals.
机译:理解控制物种在自然环境中的死亡率的因素对于理解种群,社区和生态系统的结构和动态非常重要。在这里,我们测试了一种自然死亡率模型,该模型根据体重和体温对个体新陈代谢的限制产生了明确的定量预测。来自植物,无脊椎动物,鱼类,鸟类和哺乳动物的大量现场数据表明,尽管自然系统中有许多外部死亡原因,但自然死亡率的异质性仍可预测。这些结果表明,常见的“规则”支配着生态系统中动植物(如动植物)的死亡率。

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