01759nas a2200181   4500008004100000245014700041210007000188520109900258653003301357653001001390653003001400653001501430653002501445100001401470700001901484700001901503856005501522       2004                        eng d00aThe rôle of call frequency and the auditory papillae in phonotactic behavior in male Dart-poison frogs Epipedobates femoralis (Dendrobatidae)0 arôle of call frequency and the auditory papillae in phonotactic 3 a<p>Territorial males of the pan-Amazonian Dart- poison frog, Epipedobates femoralis, are known to present stereotypic phonotactic responses to the play- back of conspecific and synthetic calls. Fixed site attachment and a long calling period within an envi- ronment of little temperature change render this terres- trial and diurnal pan-Amazonian frog a rewarding species for field bioacoustics. In experiments at the field station Arataı ̈, French Guiana, we tested whether the prominent frequency modulation of the advertisement- call notes is critical for eliciting phonotactic responses. Substitution of the natural upward sweep by either a pure tone within the species frequency range or a reverse sweep did not alter the males&rsquo; phonotactic behavior. Playbacks with artificial advertisement calls embedded in high levels of either low-pass or high-pass masking noise designed to saturate nerve fibers from either the amphibian papilla or basilar papilla showed that male phonotactic behavior in this species is subserved by activation of the basilar papilla of the inner ear.</p>
10aAcoustic playback experiment10aAnura10aCall frequency modulation10aphonotaxis10aTerritorial behavior1 aHödl, W.1 aAmézquita, A.1 aNarins, P., M.  uhttp://link.springer.com/10.1007/s00359-004-0536-1