Contrasting parental roles shape sex differences in poison frog space use but not navigational performance.

Autor:	Pašukonis A; Institute of Biosciences, Vilnius University Life Sciences Center, Vilnius, Lithuania.; CEFE, Univ Montpellier, Montpellier, France.; Department of Biology, Stanford University, Stanford, United States., Serrano-Rojas SJ; Department of Biology, Stanford University, Stanford, United States.; Universidad Nacional de San Antonio Abad del Cusco, Cusco, Peru., Fischer MT; Department of Biology, Stanford University, Stanford, United States., Loretto MC; Technical University of Munich, TUM School of Life Sciences, Ecosystem Dynamics and Forest Management, Hans-Carl-von-Carlowitz-Platz, Freising, Germany.; Berchtesgaden National Park, Doktorberg, Berchtesgaden, Germany., Shaykevich DA; Department of Biology, Stanford University, Stanford, United States., Rojas B; Department of Interdisciplinary Life Sciences, Konrad Lorenz Institute of Ethology, University of Veterinary Medicine Vienna, Vienna, Austria.; Department of Biology and Environmental Science, University of Jyväskylä, Jyväskylä, Finland., Ringler M; Division of Behavioural Ecology, Institute of Ecology and Evolution, University of Bern, Hinterkappelen, Switzerland.; Institute of Electronic Music and Acoustics, University of Music and Performing Arts Graz, Graz, Austria.; Department of Behavioral and Cognitive Biology, University of Vienna, Vienna, Austria.; Department of Evolutionary Biology, University of Vienna, Vienna, Austria., Roland AB; Research Center on Animal Cognition, Center for Integrative Biology, CNRS - Paul Sabatier University, Toulouse, France., Marcillo-Lara A; Department of Integrative Biology, Oklahoma State University, Stillwater, United States.; Centro Jambatu de Investigación y Conservación de Anfibios, Quito, Ecuador., Ringler E; Division of Behavioural Ecology, Institute of Ecology and Evolution, University of Bern, Hinterkappelen, Switzerland.; Messerli Research Institute, University of Veterinary Medicine Vienna, Vienna, Austria., Rodríguez C; Department of Behavioral and Cognitive Biology, University of Vienna, Vienna, Austria., Coloma LA; Centro Jambatu de Investigación y Conservación de Anfibios, Quito, Ecuador., O'Connell LA; Department of Biology, Stanford University, Stanford, United States.
Jazyk:	angličtina
Zdroj:	ELife [Elife] 2022 Nov 15; Vol. 11. Date of Electronic Publication: 2022 Nov 15.
DOI:	10.7554/eLife.80483
Abstrakt:	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. Competing Interests: AP, SS, MF, ML, DS, BR, MR, AR, AM, ER, CR, LC No competing interests declared, LO Reviewing editor, eLife (© 2022, Pašukonis et al.)
Databáze:	MEDLINE
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