10.5061/DRYAD.5CV40
Trillo, Paula A.
Athanas, Keri A.
Colorado State University
Goldhill, Daniel H.
Yale University
Hoke, Kim L.
Colorado State University
Funk, W. Chris.
Colorado State University
Data from: The influence of geographic heterogeneity in predation pressure
on mating signal divergence in an Amazonian frog species complex
Dryad
dataset
2012
Amphibians & reptiles
Sexual selection & conflicts
Engystomops petersi
2012-10-11T19:37:55Z
2012-10-11T19:37:55Z
en
https://doi.org/10.1111/jeb.12041
15633 bytes
1
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Sexual section plays an important role in mating signal divergence, but
geographic variation in ecological factors can also contribute to
divergent signal evolution. We tested the hypothesis that geographic
heterogeneity in predation causes divergent selection on advertisement
call complexity within the Engystomops petersi frog species complex. We
conducted predator phonotaxis experiments at two sites where female choice
is consistent with call trait divergence. Engystomops at one site produces
complex calls, while the closely related species at the other site
produces simple calls. Bats approached complex calls more than simple
calls at both sites, suggesting selection against complex calls. Moreover,
bat predation pressure was greater at the site with simple calls,
suggesting stronger selection against complex calls and potentially
precluding evolution of complex calls at this site. Our results show that
geographic variation in predation may play an important role in the
evolution and maintenance of mating signal divergence.
Bat visitations to complex and simple calls in E. petersi species
complexIncludes field collected data showing nightly number of visits to
complex versus simple calling speaker-model platforms in Yasuni Biological
Field Station and La Selva Jungle Lodge, Ecuador.Trillo et al.xlsx