Contrasting parental roles shape sex differences in poison frog space use but not navigational performance
Pašukonis, A., Serrano-Rojas, S. J., Fischer, M.-T., Loretto, M.-C., Shaykevich, D. A., Rojas, B., Ringler, M., Roland, A. B., Marcillo-Lara, A., Ringler, E., Rodríguez, C., Coloma, L. A., & O'Connell, L. A. (2022). Contrasting parental roles shape sex differences in poison frog space use but not navigational performance. eLife, 11, Article e80483. https://doi.org/10.7554/eLife.80483
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eLifeAuthors
Date
2022Discipline
Ekologia ja evoluutiobiologiaEvoluutiotutkimus (huippuyksikkö)Ecology and Evolutionary BiologyCentre of Excellence in Evolutionary ResearchCopyright
© Pašukonis et al.
Sex differences in vertebrate spatial abilities are typically interpreted under the adaptive specialization hypothesis, which posits that male reproductive success is linked to larger home ranges and better navigational skills. The androgen spillover hypothesis counters that enhanced male spatial performance may be a byproduct of higher androgen levels. Animal groups that include species where females are expected to outperform males based on life-history traits are key for disentangling these hypotheses. We investigated the association between sex differences in reproductive strategies, spatial behavior, and androgen levels in three species of poison frogs. We tracked individuals in natural environments to show that contrasting parental sex roles shape sex differences in space use, where the sex performing parental duties shows wider-ranging movements. We then translocated frogs from their home areas to test their navigational performance and found that the caring sex outperformed the non-caring sex only in one out of three species. In addition, males across species displayed more explorative behavior than females and androgen levels correlated with explorative behavior and homing accuracy. Overall, we reveal that poison frog reproductive strategies shape movement patterns but not necessarily navigational performance. Together this work suggests that prevailing adaptive hypotheses provide an incomplete explanation of sex differences in spatial abilities.
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eLife Sciences Publications, LtdISSN Search the Publication Forum
2050-084XKeywords
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https://converis.jyu.fi/converis/portal/detail/Publication/164395719
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Research Council of FinlandFunding program(s)
Research costs of Academy Research Fellow, AoFAdditional information about funding
The study was funded by The European Commission’s Horizon 2020 research and innovation program under the Marie Sklodowska-Curie Actions grant agreement no. 835530 to AP, LAO, and Simon Benhamou; National Science Foundation CAREER grant (IOS-1845651) to LAO; Association for the Study of Animal Behaviour (ASAB) 2016 Research Grant to AP; Austrian Science Fund (FWF): P24788 and P31518 and FWF Herta-Firnberg Grant T699 to ER; P33728 and FWF Erwin-Schrödinger Fellowship J3868-B29 to MR; FWF Erwin-Schrödinger Fellowship J3827-B29 to AP; CNRS Nouragues Travel Grants (AnaEE France ANR-11-INBS-0001) NTG2009 and NTG2010 to BR; NTG2015 to AP and BR. LAO is a New York Stem Cell Foundation – Robertson Investigator. ML received funding by the European Union’s Horizon 2020 research and innovation program under the Marie Skłodowska-Curie grant agreement no. 79809. BR received funding from the Academy of Finland Research Fellowship (no. 319949). CR was funded by FWF-DK project W-1262 (Speaker: Tecumseh Fitch). LAC acknowledges the support of Wikiri and the Saint Luis Zoo. The Nouragues Ecological Research Station, managed by CNRS, benefits from 'Investissement d’Avenir' grants managed by the Agence Nationale de la Recherche (AnaEE France ANR-11-INBS-0001; Labex CEBA ANR-10-LABX-25-01) ...License
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