A model for phenotype change in a stochastic framework

In some species, an inducible secondary phenotype will develop sometime after the environmental change that evokes it. Nishimura (2006)[4] showed how an individual organism should optimizethe time it takes to respond to an environmental change ('waitingtime''). If the optimal waiting...

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Main Authors: Graeme Wake, Anthony Pleasants, Alan Beedle, Peter Gluckman
Format: Article
Language:English
Published: AIMS Press 2010-05-01
Series:Mathematical Biosciences and Engineering
Subjects:
Online Access:https://www.aimspress.com/article/doi/10.3934/mbe.2010.7.719
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author Graeme Wake
Anthony Pleasants
Alan Beedle
Peter Gluckman
author_facet Graeme Wake
Anthony Pleasants
Alan Beedle
Peter Gluckman
author_sort Graeme Wake
collection DOAJ
description In some species, an inducible secondary phenotype will develop sometime after the environmental change that evokes it. Nishimura (2006)[4] showed how an individual organism should optimizethe time it takes to respond to an environmental change ('waitingtime''). If the optimal waiting time is considered to act over thepopulation, there are implications for the expected value of themean fitness in that population. A stochastic predator-prey model isproposed in which the prey have a fixed initial energy budget.Fitness is the product of survival probability and the energyremaining for non-defensive purposes. The model is placed in thestochastic domain by assuming that the waiting time in thepopulation is a normally distributed random variable because ofbiological variance inherent in mounting the response. It is foundthat the value of the mean waiting time that maximises fitnessdepends linearly on the variance of the waiting time.
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spelling doaj-art-9f8f66d708924f788ad9215edcc1a31c2025-01-24T02:00:44ZengAIMS PressMathematical Biosciences and Engineering1551-00182010-05-017371972810.3934/mbe.2010.7.719A model for phenotype change in a stochastic frameworkGraeme Wake0Anthony Pleasants1Alan Beedle2Peter Gluckman3National Research Centre for Growth and Development & Institute of Information and Mathematical Sciences, Massey University, Private Bag 102904, Albany, AucklandNational Research Centre for Growth and Development & Institute of Information and Mathematical Sciences, Massey University, Private Bag 102904, Albany, AucklandNational Research Centre for Growth and Development & Institute of Information and Mathematical Sciences, Massey University, Private Bag 102904, Albany, AucklandNational Research Centre for Growth and Development & Institute of Information and Mathematical Sciences, Massey University, Private Bag 102904, Albany, AucklandIn some species, an inducible secondary phenotype will develop sometime after the environmental change that evokes it. Nishimura (2006)[4] showed how an individual organism should optimizethe time it takes to respond to an environmental change ('waitingtime''). If the optimal waiting time is considered to act over thepopulation, there are implications for the expected value of themean fitness in that population. A stochastic predator-prey model isproposed in which the prey have a fixed initial energy budget.Fitness is the product of survival probability and the energyremaining for non-defensive purposes. The model is placed in thestochastic domain by assuming that the waiting time in thepopulation is a normally distributed random variable because ofbiological variance inherent in mounting the response. It is foundthat the value of the mean waiting time that maximises fitnessdepends linearly on the variance of the waiting time.https://www.aimspress.com/article/doi/10.3934/mbe.2010.7.719waiting time.fitnessstochasticityinducible defencephenotypic plasticity
spellingShingle Graeme Wake
Anthony Pleasants
Alan Beedle
Peter Gluckman
A model for phenotype change in a stochastic framework
Mathematical Biosciences and Engineering
waiting time.
fitness
stochasticity
inducible defence
phenotypic plasticity
title A model for phenotype change in a stochastic framework
title_full A model for phenotype change in a stochastic framework
title_fullStr A model for phenotype change in a stochastic framework
title_full_unstemmed A model for phenotype change in a stochastic framework
title_short A model for phenotype change in a stochastic framework
title_sort model for phenotype change in a stochastic framework
topic waiting time.
fitness
stochasticity
inducible defence
phenotypic plasticity
url https://www.aimspress.com/article/doi/10.3934/mbe.2010.7.719
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