10.5061/DRYAD.F8J0N
Duthie, A. Bradley
University of Stirling
Bocedi, Greta
University of Aberdeen
Germain, Ryan R.
University of Aberdeen
Reid, Jane M.
University of Aberdeen
Data from: Evolution of pre-copulatory and post-copulatory strategies of
inbreeding avoidance and associated polyandry
Dryad
dataset
2017
relatedness
reproductive strategy
Inbreeding
Mate choice
2017-10-02T16:03:17Z
2017-10-02T16:03:17Z
en
https://doi.org/10.1111/jeb.13189
37816 bytes
1
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Inbreeding depression is widely hypothesised to drive adaptive evolution
of pre-copulatory and post-copulatory mechanisms of inbreeding avoidance,
which in turn are hypothesised to affect evolution of polyandry (i.e.,
female multiple mating). However, surprisingly little theory or modelling
critically examines selection for pre-copulatory or post-copulatory
inbreeding avoidance, or both strategies, given evolutionary constraints
and direct costs, or examines how evolution of inbreeding avoidance
strategies might feed back to affect evolution of polyandry. Selection for
post-copulatory inbreeding avoidance, but not for pre-copulatory
inbreeding avoidance, requires polyandry, while interactions between
pre-copulatory and post-copulatory inbreeding avoidance might cause
functional redundancy (i.e., ‘degeneracy’) potentially generating complex
evolutionary dynamics among inbreeding strategies and polyandry. We used
individual-based modelling to quantify evolution of interacting
pre-copulatory and post-copulatory inbreeding avoidance and associated
polyandry given strong inbreeding depression and different evolutionary
constraints and direct costs. We found that evolution of post-copulatory
inbreeding avoidance increased selection for initially rare polyandry, and
that evolution of a costly inbreeding avoidance strategy became negligible
over time given a lower cost alternative strategy. Further, fixed
pre-copulatory inbreeding avoidance often completely precluded evolution
of polyandry and hence post-copulatory inbreeding avoidance, but fixed
post-copulatory inbreeding avoidance did not preclude evolution of
pre-copulatory inbreeding avoidance. Evolution of inbreeding avoidance
phenotypes and associated polyandry are therefore affected by evolutionary
feedbacks and degeneracy. All else being equal, evolution of
pre-copulatory inbreeding avoidance and resulting low polyandry is more
likely when post-copulatory inbreeding avoidance is precluded or costly,
and evolution of post-copulatory inbreeding avoidance greatly facilitates
evolution of costly polyandry.
pre_post_cop_code.tarThis compressed directory contains the 45 files
needed to compile the code underlying the paper and run all simulations.
Parameter values for simulations are set in the PolyIn.c file, which
outputs results in three separate TXT files. The output TXT files can be
used in the analysis.R file to recreate all analyses and figures from the
paper. This code is also publicly available, with additional
documentation, on Brad Duthie's GitHub repository:
https://github.com/bradduthie/pre_post_cop