Quantifying the effect of genetic, environmental and individual demographic stochastic variability for population dynamics in Plantago lanceolata

Abstract Simple demographic events, the survival and reproduction of individuals, drive population dynamics. These demographic events are influenced by genetic and environmental parameters, and are the focus of many evolutionary and ecological investigations that aim to predict and understand popula...

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Autores principales: Ulrich K. Steiner, Shripad Tuljapurkar, Deborah A. Roach
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Publicado: Nature Portfolio 2021
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Acceso en línea:https://doaj.org/article/ac28ac3261ee4a37bef90653582e9feb
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spelling oai:doaj.org-article:ac28ac3261ee4a37bef90653582e9feb2021-12-05T12:12:52ZQuantifying the effect of genetic, environmental and individual demographic stochastic variability for population dynamics in Plantago lanceolata10.1038/s41598-021-02468-92045-2322https://doaj.org/article/ac28ac3261ee4a37bef90653582e9feb2021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-02468-9https://doaj.org/toc/2045-2322Abstract Simple demographic events, the survival and reproduction of individuals, drive population dynamics. These demographic events are influenced by genetic and environmental parameters, and are the focus of many evolutionary and ecological investigations that aim to predict and understand population change. However, such a focus often neglects the stochastic events that individuals experience throughout their lives. These stochastic events also influence survival and reproduction and thereby evolutionary and ecological dynamics. Here, we illustrate the influence of such non-selective demographic variability on population dynamics using population projection models of an experimental population of Plantago lanceolata. Our analysis shows that the variability in survival and reproduction among individuals is largely due to demographic stochastic variation with only modest effects of differences in environment, genes, and their interaction. Common expectations of population growth, based on expected lifetime reproduction and generation time, can be misleading when demographic stochastic variation is large. Large demographic stochastic variation exhibited within genotypes can lower population growth and slow evolutionary adaptive dynamics. Our results accompany recent investigations that call for more focus on stochastic variation in fitness components, such as survival, reproduction, and functional traits, rather than dismissal of this variation as uninformative noise.Ulrich K. SteinerShripad TuljapurkarDeborah A. RoachNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Ulrich K. Steiner
Shripad Tuljapurkar
Deborah A. Roach
Quantifying the effect of genetic, environmental and individual demographic stochastic variability for population dynamics in Plantago lanceolata
description Abstract Simple demographic events, the survival and reproduction of individuals, drive population dynamics. These demographic events are influenced by genetic and environmental parameters, and are the focus of many evolutionary and ecological investigations that aim to predict and understand population change. However, such a focus often neglects the stochastic events that individuals experience throughout their lives. These stochastic events also influence survival and reproduction and thereby evolutionary and ecological dynamics. Here, we illustrate the influence of such non-selective demographic variability on population dynamics using population projection models of an experimental population of Plantago lanceolata. Our analysis shows that the variability in survival and reproduction among individuals is largely due to demographic stochastic variation with only modest effects of differences in environment, genes, and their interaction. Common expectations of population growth, based on expected lifetime reproduction and generation time, can be misleading when demographic stochastic variation is large. Large demographic stochastic variation exhibited within genotypes can lower population growth and slow evolutionary adaptive dynamics. Our results accompany recent investigations that call for more focus on stochastic variation in fitness components, such as survival, reproduction, and functional traits, rather than dismissal of this variation as uninformative noise.
format article
author Ulrich K. Steiner
Shripad Tuljapurkar
Deborah A. Roach
author_facet Ulrich K. Steiner
Shripad Tuljapurkar
Deborah A. Roach
author_sort Ulrich K. Steiner
title Quantifying the effect of genetic, environmental and individual demographic stochastic variability for population dynamics in Plantago lanceolata
title_short Quantifying the effect of genetic, environmental and individual demographic stochastic variability for population dynamics in Plantago lanceolata
title_full Quantifying the effect of genetic, environmental and individual demographic stochastic variability for population dynamics in Plantago lanceolata
title_fullStr Quantifying the effect of genetic, environmental and individual demographic stochastic variability for population dynamics in Plantago lanceolata
title_full_unstemmed Quantifying the effect of genetic, environmental and individual demographic stochastic variability for population dynamics in Plantago lanceolata
title_sort quantifying the effect of genetic, environmental and individual demographic stochastic variability for population dynamics in plantago lanceolata
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/ac28ac3261ee4a37bef90653582e9feb
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AT shripadtuljapurkar quantifyingtheeffectofgeneticenvironmentalandindividualdemographicstochasticvariabilityforpopulationdynamicsinplantagolanceolata
AT deboraharoach quantifyingtheeffectofgeneticenvironmentalandindividualdemographicstochasticvariabilityforpopulationdynamicsinplantagolanceolata
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