GSTDTAP  > 资源环境科学
DOI10.1111/ele.13843
Demystifying individual heterogeneity
Amy B. Forsythe; Troy Day; William A. Nelson
2021-07-19
发表期刊Ecology Letters
出版年2021
英文摘要

Among-individual variation in vital rates, such as mortality and birth rates, exists in nearly all populations. Recent studies suggest that this individual heterogeneity produces substantial life-history and fitness differences among individuals, which in turn scale up to influence population dynamics. However, our ability to understand the consequences of individual heterogeneity is limited by inconsistencies across conceptual frameworks in the field. Studies of individual heterogeneity remain filled with contradicting and ambiguous terminology that introduces risks of misunderstandings, conflicting models and unreliable conclusions. Here, we synthesise the existing literature into a single and comparatively straightforward framework with explicit terminology and definitions. This work introduces a distinction between potential vital rates and realised vital rates to develop a coherent framework that maps directly onto mathematical models of individual heterogeneity. We suggest the terms “fixed condition” and “dynamic condition” be used to distinguish potential vital rates that are permanent from those that can change throughout an individual's life. To illustrate, we connect the framework to quantitative genetics models and to common classes of statistical models used to infer individual heterogeneity. We also develop a population projection matrix model that provides an example of how our definitions are translated into precise quantitative terms.

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被引频次:13[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/333901
专题资源环境科学
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GB/T 7714
Amy B. Forsythe,Troy Day,William A. Nelson. Demystifying individual heterogeneity[J]. Ecology Letters,2021.
APA Amy B. Forsythe,Troy Day,&William A. Nelson.(2021).Demystifying individual heterogeneity.Ecology Letters.
MLA Amy B. Forsythe,et al."Demystifying individual heterogeneity".Ecology Letters (2021).
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