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  • Influence
Animal communication: Complex call production in the túngara frog
It is shown that the 'chuck' of the ‘whine-chuck’ mating call of the túngara frog, Physalaemus pustulosus, is caused by a fibrous mass attached to the vocal folds; the chuck is eliminated by removal of this structure, although the frog still tries to produce the sound.
Active control of ultrasonic hearing in frogs
It is shown that the Chinese concave-eared torrent frog, Odorrana tormota, can tune its ears dynamically by closing its normally open Eustachian tubes, a previously unrecognized vertebrate mechanism which may unmask the high-frequency calls of this species from the low-frequency stream noise which dominates the environment.
Pure Ultrasonic Communication in an Endemic Bornean Frog
Huia cavitympanum, an endemic Bornean frog, is the first amphibian species known to emit exclusively ultrasonic (i.e., >20 kHz) vocal signals. To test the hypothesis that these frogs use purely
The structure of vocal sounds produced with the mouth closed or with the mouth open in treefrogs.
  • M. Gridi-Papp
  • Physics
    The Journal of the Acoustical Society of America
  • 9 May 2008
By calling with the mouth closed, treefrogs can potentially produce advertisement calls with the energy concentrated in a narrower frequency range than with the Mouth Open, according to the spectral differences observed between natural advertisement calls and distress calls.
Vocal Sound Production and Acoustic Communication in Amphibians and Reptiles
Most amphibians and reptiles produce sounds with a larynx containing a pair of vocal cords. Clicking and hissing are common in both groups whereas tonal sounds are found most frequently in anurans
The Arylabialis Muscle of the Túngara Frog (Engystomops pustulosus)
This study identified a novel laryngeal muscle in túngara frogs, a potential mechanism for the control of call complexity, and revealed new evidence of homologies between the larynGEal structures of amphibians and mammals.
Thermal sensitivity of a Neotropical amphibian (Engystomops pustulosus) and its vulnerability to climate change
A species’ thermal sensitivity and its exposure to climate variation are key components in the prediction of its vulnerability to climate change. We tested the thermal sensitivity of a tropical
The Response of Gray Treefrogs to Anesthesia by Tricaine Methanesulfonate (TMS or MS-222)
It is reported on the response of treefrogs (Hyla chrysoscelis and H. versicolor) to tricaine methanesulfonate and the first assessments of the factors that influence the variability of the response to anesthesia within a species.