The evolution of labile traits in sex- and age-structured populations

The Journal of Animal Ecology
Dylan Z ChildsMark Rees

Abstract

Many quantitative traits are labile (e.g. somatic growth rate, reproductive timing and investment), varying over the life cycle as a result of behavioural adaptation, developmental processes and plastic responses to the environment. At the population level, selection can alter the distribution of such traits across age classes and among generations. Despite a growing body of theoretical research exploring the evolutionary dynamics of labile traits, a data-driven framework for incorporating such traits into demographic models has not yet been developed. Integral projection models (IPMs) are increasingly being used to understand the interplay between changes in labile characters, life histories and population dynamics. One limitation of the IPM approach is that it relies on phenotypic associations between parents and offspring traits to capture inheritance. However, it is well-established that many different processes may drive these associations, and currently, no clear consensus has emerged on how to model micro-evolutionary dynamics in an IPM framework. We show how to embed quantitative genetic models of inheritance of labile traits into age-structured, two-sex models that resemble standard IPMs. Commonly used statistical tool...Continue Reading

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References

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Citations

Feb 24, 2016·The Journal of Animal Ecology·Floriane PlardShripad Tuljapurkar
Oct 4, 2016·Evolutionary Applications·Dustin J MarshallTim Connallon
Oct 27, 2016·Journal of Evolutionary Biology·M J JaneiroM B Morrissey
Feb 12, 2020·Ecology Letters·Shripad TuljapurkarJean-Michel Gaillard
Sep 26, 2020·Ecology Letters·Emily G SimmondsTim Coulson
Aug 5, 2019·Theoretical Population Biology·Charlotte de Vries, Hal Caswell
Feb 23, 2021·Ecology Letters·Ronald D BassarDavid N Reznick
Jul 22, 2021·Ecology Letters·Amy B ForsytheWilliam A Nelson

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