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Long distance homing in the cane toad (Rhinella marina) in its native range

Abstract : Many animals exhibit complex navigation over different scales and environments. Navigation studies in amphibians have largely focused on species with life histories that require accurate spatial movements, such as territorial poison frogs and migratory pondbreeding amphibians that show fidelity to mating sites. However, other amphibian species have remained relatively understudied, leaving open the possibility that well-developed navigational abilities are widespread. Here, we measured short-term space use in non-territorial, non-migratory cane toads (Rhinella marina) in their native range in French Guiana. After establishing site fidelity, we tested their ability to return home following translocations of 500 and 1000 m. Toads were able to travel in straight trajectories back to home areas, suggesting navigational abilities similar to those observed in amphibians with more complex spatial behavior. These observations break with the current paradigm of amphibian navigation and suggest that navigational abilities may be widely shared among amphibians.
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Contributor : Andrius Pašukonis Connect in order to contact the contributor
Submitted on : Thursday, April 14, 2022 - 12:08:07 AM
Last modification on : Wednesday, September 28, 2022 - 4:20:12 PM
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Daniel Shaykevich, Lauren O'Connell, Andrius Pašukonis. Long distance homing in the cane toad (Rhinella marina) in its native range. Journal of Experimental Biology, The Company of Biologists, 2022, 225 (2), ⟨10.1242/jeb.243048⟩. ⟨hal-03640886⟩



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