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Tadpole-transporting frogs use stagnant water odor to find pools in the rainforest

Abstract : Breeding sites are often a limited and ephemeral resource for rainforest frogs. This resource limitation has driven the evolution of diverse reproductive strategies that increase offspring survival. For example, poison frogs shuttle their tadpoles from terrestrial clutches to aquatic rearing sites, using various cues to assess pool suitability. Yet, how frogs find new pools is unknown. We tested the role of odor cues in the process of finding tadpole deposition sites by the poison frog Allobates femoralis. We created 60 artificial pools grouped into three conditions: stagnant water, tadpole water and clean water control. Fifteen pools were discovered within 6 days, with more tadpoles and more frogs directly observed at pools with stagnant odor cues. Our findings suggest that frogs use odor cues associated with stagnant water for the initial discovery of new breeding pools. These cues may be good indicators of pool stability and increased likelihood of tadpole survival.
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https://hal-cnrs.archives-ouvertes.fr/hal-03641772
Contributor : Andrius Pašukonis Connect in order to contact the contributor
Submitted on : Thursday, April 14, 2022 - 2:51:45 PM
Last modification on : Wednesday, May 18, 2022 - 3:06:06 PM

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Shirley Serrano-Rojas, Andrius Pašukonis. Tadpole-transporting frogs use stagnant water odor to find pools in the rainforest. Journal of Experimental Biology, The Company of Biologists, 2021, 224 (21), pp.jeb243122. ⟨10.1242/jeb.243122⟩. ⟨hal-03641772⟩

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