Rapid evolution of life‐history traits in response to warming, predation and competition: A meta‐analysis

2021 ◽  
Author(s):  
Tess Nahanni Grainger ◽  
Jonathan M. Levine

1990 ◽  
Vol 3 (3-4) ◽  
pp. 205-224 ◽  
Author(s):  
Irene Till-Bottraud ◽  
Lin Wu ◽  
James Harding


Author(s):  
Jeffrey A. Hutchings

Life histories describe how genotypes schedule their reproductive effort throughout life in response to factors that affect their survival and fecundity. Life histories are solutions that selection has produced to solve the problem of how to persist in a given environment. These solutions differ tremendously within and among species. Some organisms mature within months of attaining life, others within decades; some produce few, large offspring as opposed to numerous, small offspring; some reproduce many times throughout their lives while others die after reproducing just once. The exponential pace of life-history research provides an opportune time to engage and re-engage new generations of students and researchers on the fundamentals and applications of life-history theory. Chapters 1 through 4 describe the fundamentals of life-history theory. Chapters 5 through 8 focus on the evolution of life-history traits. Chapters 9 and 10 summarize how life-history theory and prediction has been applied within the contexts of conservation and sustainable exploitation. This primer offers an effective means of rendering the topic accessible to readers from a broad range of academic experience and research expertise.



2019 ◽  
Vol 110 (4) ◽  
pp. 403-410 ◽  
Author(s):  
Ned A Dochtermann ◽  
Tori Schwab ◽  
Monica Anderson Berdal ◽  
Jeremy Dalos ◽  
Raphaël Royauté

AbstractThe contribution of genetic variation to phenotypes is a central factor in whether and how populations respond to selection. The most common approach to estimating these influences is via the calculation of heritabilities, which summarize the contribution of genetic variation to phenotypic variation. Heritabilities also indicate the relative effect of genetic variation on phenotypes versus that of environmental sources of variation. For labile traits like behavioral responses, life history traits, and physiological responses, estimation of heritabilities is important as these traits are strongly influenced by the environment. Thus, knowing whether or not genetic variation is present within populations is necessary to understand whether or not these populations can evolve in response to selection. Here we report the results of a meta-analysis summarizing what we currently know about the heritability of behavior. Using phylogenetically controlled methods we assessed the average heritability of behavior (0.235)—which is similar to that reported in previous analyses of physiological and life history traits—and examined differences among taxa, behavioral classifications, and other biologically relevant factors. We found that there was considerable variation among behaviors as to how heritable they were, with migratory behaviors being the most heritable. Interestingly, we found no effect of phylogeny on estimates of heritability. These results suggest, first, that behavior may not be particularly unique in the degree to which it is influenced by factors other than genetics and, second, that those factors influencing whether a behavioral trait will have low or high heritability require further consideration.



Evolution ◽  
2020 ◽  
Vol 74 (4) ◽  
pp. 764-774 ◽  
Author(s):  
Animesh Gupta ◽  
Anechelle N. Soto ◽  
Sarah J. Medina ◽  
Katherine L. Petrie ◽  
Justin R. Meyer


Evolution ◽  
1997 ◽  
Vol 51 (6) ◽  
pp. 1896 ◽  
Author(s):  
Nikola Tucic ◽  
Oliver Stojkovic ◽  
Ivana Gliksman ◽  
Dragana Milanovic ◽  
Darka Seslija






Sign in / Sign up

Export Citation Format

Share Document