DOI: 10.1111/ele.13467
论文题名: Skewed distributions of lifetime reproductive success: beyond mean and variance
作者: Tuljapurkar S. ; Zuo W. ; Coulson T. ; Horvitz C. ; Gaillard J.-M.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2020
卷: 23, 期: 4 起始页码: 748
结束页码: 756
语种: 英语
中文关键词: Age + stage
; evolution
; life history
; lifetime reproductive success
英文关键词: age
; demography
; evergreen tree
; evolutionary biology
; hunting
; life history
; probability
; reproductive success
; stochasticity
; Capreolus
; Capreolus capreolus
; Tsuga canadensis
; animal
; deer
; genetic selection
; human
; reproduction
; Animals
; Deer
; Humans
; Reproduction
; Selection, Genetic
英文摘要: Lifetime reproductive performance is quantified here by the LRS (lifetime reproductive success), the random number of offspring an individual produces over its lifetime. Many field studies find that distributions of LRS among individuals are non-normal, zero-inflated and highly skewed. These results beg the question, what is the distribution of LRS predicted by demographic models when the only source of randomness is demographic stochasticity? Here we present the first exact analysis of the probability distribution of LRS for species described by age + stage models; our analysis starts with estimated vital rates. We illustrate with three examples: the Hadza, human hunter-foragers (age-only), the evergreen tree Tsuga canadensis (stage-only) and Roe deer, Capreolus capreolus (age + stage). For each we obtain the exact distribution of LRS, but also calculate and discuss the first three moments. Our results point to important questions about how such LRS distributions affect natural selection, and life history evolution. © 2020 John Wiley & Sons Ltd/CNRS Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166734
Appears in Collections: 气候变化与战略
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作者单位: Department of Biology, Stanford University, Stanford, CA 94305-5020, United States; Department of Zoology, University of Oxford, Oxford, OX1 3SZ, United Kingdom; Department of Biology, University of Miami, Coral Gables, FL 33124-0421, United States; Laboratoire de Biométrie et Biologie Evolutive, CNRS, UMR 5558, Université Lyon 1, Villeurbanne, F-69622, France
Recommended Citation:
Tuljapurkar S.,Zuo W.,Coulson T.,et al. Skewed distributions of lifetime reproductive success: beyond mean and variance[J]. Ecology Letters,2020-01-01,23(4)