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Physalaemus petersi Geographic variation in Male Calls and Female Preferences

Physalaemus petersi Geographic variation in Male Calls and Female Preferences. Biogeographic Hypotheses for Diversification in Amazonia. Methods. 2,400 bp of 12S and 16S mtDNA. 48 Physalaemus petersi from 18 sites. Outgroups: - P. pustulosus (2) - P. pustulatus (1)

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Physalaemus petersi Geographic variation in Male Calls and Female Preferences

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  1. Physalaemus petersi Geographic variation in Male Calls and Female Preferences

  2. Biogeographic Hypotheses for Diversification in Amazonia

  3. Methods • 2,400 bp of 12S and • 16S mtDNA • 48 Physalaemus petersi • from 18 sites • Outgroups: • - P. pustulosus (2) • - P. pustulatus (1) • - P. coloradorum (1)

  4. Predictions of Biogeographic Hypotheses

  5. Results Partial Mantel tests indicate that hypothesized refugia still significant after removing effects of geographic distance

  6. Results Tests of Population Expansion * = P < 0.05 ** = P < 0.01

  7. North-South Break in Western Amazonia Physalaemus petersi; current study Carollia castanea; Hoffman & Baker 2003 Phaeothlypis wood-warblers; Lovette 2004 Photo from Batkey (http://katydid.uni-graz.at/batkey/about.asp) Anolis nitens; Glor et al. 2001 Photo by Arthur Grosset Dendrobates spp; Symula et al. (2003)

  8. Results Large Divergence in Male Calls and Female Preferences between Populations that have Diverged Recently

  9. Future directions Phylogeography 1. Additional sites and individuals (central and eastern Brazil) • Additional analyses: Parametric bootstrapping 3. Additional loci: Microsatellites Call variation 1. Finish analysis of calls (12 sites) 2. Examine relationship between call divergence and genetic divergence among populations (9 sites with calls & tissues)

  10. Acknowledgements • Field work • Samael Padilla • Claudia Torres Gastello • Collaborators • Ariadne Angulo • Kathryn Boul • Janalee Caldwell • David Cannatella • Luis Coloma • Ignacio De la Riva • José Padial • Santiago Ron • Michael Ryan • Analysis advice • Ximena Bernal • Meredith Mahoney • Derrick Zwickl • Lab work • Brian Caudle • Colin Peden • Funding • NSF IRCEB program

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