10.5061/DRYAD.855KH
Martin, Ryan A.
Case Western Reserve University
North Carolina State University
Riesch, Rüdiger
University of Sheffield
North Carolina State University
Heinen-Kay, Justa Lee
North Carolina State University
Langerhans, R. Brian
North Carolina State University
Data from: Evolution of male coloration during a post-pleistocene
radiation of Bahamas mosquitofish (Gambusia hubbsi)
Dryad
dataset
2013
sensory drive
Animal communication
Gambusia hubbsi
indicator traits
Poeciliidae
2013-09-17T13:19:25Z
2013-09-17T13:19:25Z
en
https://doi.org/10.1111/evo.12277
43333 bytes
1
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Sexual signal evolution can be complex because multiple factors influence
the production, transmission, and reception of sexual signals, as well as
receivers’ responses to them. To grasp the relative importance of these
factors in generating signal diversity, we must simultaneously investigate
multiple selective agents and signaling traits within a natural system. We
use the model system of the radiation of Bahamas mosquitofish (Gambusia
hubbsi) inhabiting blue holes to test the effects of resource
availability, male body size and other life-history traits, key aspects of
the transmission environment, sex ratio, and predation risk on variation
in multiple male color traits. Consistent with previous work examining
other traits in this system, several color traits have repeatedly diverged
between predation regimes, exhibiting greater elaboration in the absence
of predators. However, other factors proved influential as well, with
variation in resource levels, body size, relative testes size, and
background water color being especially important for several color
traits. For one prominent signaling trait, orange dorsal fins, we further
confirmed a genetic basis underlying population differences using a
laboratory common-garden experiment. We illustrate a promising approach
for gaining a detailed understanding of the many contributing factors in
the evolution of multivariate sexual signals.
BlueHoleCombinedData_Dryadlab males_Dryad
Andros Island
The Bahamas