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Habitat‐dependent advertisement call variation in the monkey frog Phyllomedusa nordestina
Author(s) -
Röhr David Lucas,
Camurugi Felipe,
Martinez Pablo Ariel,
SousaLima Renata S.,
Juncá Flora Acuña,
Garda Adrian Antonio
Publication year - 2020
Publication title -
ethology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.739
H-Index - 74
eISSN - 1439-0310
pISSN - 0179-1613
DOI - 10.1111/eth.13017
Subject(s) - rainforest , biology , habitat , ecology , hylidae , adaptation (eye) , zoology , adaptive value , neuroscience
Abstract The acoustic adaptation hypothesis (AAH) predicts that acoustic signals are selected to propagate more efficiently in the habitat where they are normally transmitted. Several studies corroborated the AAH for primates and birds, but evidence for frogs is contentious: While most studies failed to support the AAH, recent studies have shown that within‐species variation conforms to the predictions of the AAH. Herein, we test the AAH by comparing advertisement calls of Phyllomedusa nordestina from two contrasting habitats (Atlantic Rainforest and Caatinga) and by testing the influence of the amount of vegetation around calling sites on acoustic parameters of frog calls. The interval between pulses was significantly different between individuals from the Atlantic Rainforest and from the Caatinga, and the number of pulses was correlated with the amount of vegetation around calling sites. Hence, our results indicate that multiple evolutionary forces may act simultaneously on the advertisement calls of frogs.