Predation risk increases permissiveness for heterospecific advertisement calls in tUngara frogs, Physalaemus pustulosus
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منابع مشابه
The mixed-species chorus as public information: tungara frogs eavesdrop on a heterospecific
Multispecies choruses represent a promising but uninvestigated forum for public information. Although frogs exposed to a potential predator call more readily in the presence of conspecifrc calls than in their absence, none are known to make comparable use of heterospecific calls. To test for heterospecific eavesdropping, we isolated calling male tungara frogs (Physalaemus pustulosus), presented...
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In most anurans, the production of advertisement calls is accompanied by the inflation of a vocal sac. Current functions of the vocal sac, however, are not fully understood, although several hypotheses have been proposed. One hypothesis suggests that the vocal sac decreases the intercall interval (i.e., increases call rate) by reinflating the lungs more rapidly than is possible with the buccal ...
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