Publicación:
The influence of geographic heterogeneity in predation pressure on sexual signal divergence in an Amazonian frog species complex

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dc.contributor.author Trillo, PA es_PE
dc.contributor.author Athanas, KA es_PE
dc.contributor.author Goldhill, DH es_PE
dc.contributor.author Hoke, KL es_PE
dc.contributor.author Funk, WC es_PE
dc.date.accessioned 2024-05-30T23:13:38Z
dc.date.available 2024-05-30T23:13:38Z
dc.date.issued 2013
dc.description We thank R. Page, M. S. Caldwell and P. Jones for many thoughtful comments on the manuscript. We thank R. Taylor for loaning frog models, staff at La Selva Lodge and the Yasuni Research Station for logistical support and Manuel Mejia and Andrea Narvaez for help with fieldwork. We also thank J. Cordova, the Museum of Natural History at UMSM, Peru and QCAZ at Pontifica Universidad Catolica del Ecuador for logistic help and advice. This research was funded by a National Geographic Society-Waitt grant, Colorado State University to CF, a National Science Foundation IOS-0940466 grant to KH and a UNESCO-L'Oreal-CONCYTEC fellowship to PAT. The research was approved by the Institutional Animal Care and Use Committee at Colorado State University (09-027A-01). The work was facilitated by ongoing collaborations with the Yanayacu Natural History Research Group.
dc.description.abstract Sexual selection 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 (previously Physalaemus 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, whereas 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. en
dc.description.sponsorship Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica - Concytec
dc.identifier.doi https://doi.org/10.1111/jeb.12041
dc.identifier.isi 312543700021
dc.identifier.uri https://hdl.handle.net/20.500.12390/1122
dc.language.iso eng
dc.publisher Oxford University Press en
dc.relation.ispartof Journal of Evolutionary Biology
dc.rights info:eu-repo/semantics/openAccess
dc.subject Bat predation en
dc.subject Ecological selection en
dc.subject Engystomops petersi en
dc.title The influence of geographic heterogeneity in predation pressure on sexual signal divergence in an Amazonian frog species complex
dc.type info:eu-repo/semantics/article
dspace.entity.type Publication
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