Code for: Juvenile mortality and sibling replacement: A kin selection approach
Data files
Oct 08, 2024 version files 522.91 KB
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README.md
1.61 KB
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SibRep.pdf
494.22 KB
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SibRep.Rmd
27.08 KB
Abstract
This dataset contains R code that has been used to generate figures in the manuscript "Juvenile mortality and sibling replacement: A kin selection approach" and in its associated Supplementary Material.
Mortality generally is higher around birth and then progressively declines through the juvenile stage. In species where offspring depend upon their parents during maturation, a factor behind this mortality decline could be sibling replacement: offspring sacrifice their survival to benefit future or present siblings as early as possible in order to minimize losses in parental investment. Here, we propose a kin-selection model of sibling replacement. Theoretical analysis of the model and its application to demographic data of mammals suggest that sibling replacement consistently generates a selective incentive for increasing juvenile mortality at early ages when this mortality increment is the result of positive selection for juvenile altruism within the nuclear family. The model highlights how sibling replacement goes beyond optimal allocation of parental resources into dependents and can provoke greater mortality closer to birth also in response to a more favorable ratio of actors to recipients of altruism among siblings.
README: R Code for Juvenile mortality and sibling replacement: A kin selection approach
https://doi.org/10.5061/dryad.7wm37pw1h
This dataset contains a .Rmd file that embeds commented R code that was used to generate some of the figures in the manuscript "Juvenile mortality and sibling replacement: A kin selection approach" by Giaimo and Traulsen and its associated Supplementary Material. The dataset also contains as a reference a .pdf file that was obtained with the 'Knit to PDF' command in RStudio.
Code
The .Rmd file guides the reader through each chunk of R code used to generate the relevant figures. A simple way to use this file is by opening it with RStudio and run either the "Knit to PDF" command or the "Knit to HTML" command.
Sharing/Access information
Demographic data used in the analysis:
Matrix population models for mammals from COMADRE database (2023, v.4.21.8.0):
Nonhuman primate data from Bronikowski, Anne M. et al. (2017). Data from: Female and male life tables for seven wild primate species [Dataset]. Dryad:
Human data requested to authors of this publication: Davison, R. J. and Gurven, M. D. (2021). Human uniqueness? Life history diversity among small-scale societies and chimpanzees. PLoS ONE, 16:e0239170: