Acoustic communication in the gray treefrog,Hyla versicolor: evolutionary and neurobiological implications

@article{Gerhardt2004AcousticCI,
  title={Acoustic communication in the gray treefrog,Hyla versicolor: evolutionary and neurobiological implications},
  author={Howard C. Gerhardt and John A. Doherty},
  journal={Journal of Comparative Physiology A},
  year={2004},
  volume={162},
  pages={261-278}
}
Summary1.Acoustic communication in the gray treefrog,H. versicolor, was studied by analyzing the vocalizations of males and observing the phonotactic behavior of gravid females in response to pairs of synthetic stimuli, which usually simulated choices between calls of conspecific males at different temperatures or choices between calls of conspecific males and those of a sibling species,H. chrysoscelis. Calls ofH. chrysoscelis were also analyzed acoustically.2.Pulse duty cycle (pulse duration… 
Acoustic interactions among male gray treefrogs, Hyla versicolor, in a chorus setting
TLDR
The data do not lend strong support to the hypothesis that there is an optimum time period over which females should assess the calling of males in order to maximize their ability to discriminate among males, and the change in repeatabilities with window duration suggests that a female could best distinguish among males by assessing their performance for between 4 and 14 min, depending on the measure of calling behavior.
Selective phonotaxis to advertisement calls in the gray treefrog Hyla versicolor: behavioral experiments and neurophysiological correlates
TLDR
Pulse shape and rate had synergistic or antagonistic effects on female preferences depending on whether the values of one or both of these properties in alternative stimuli were typical of those in HV or heterospecific calls.
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TLDR
Non-linear effects indicate that there is an increasing influence of high-frequency energy on preferences as females approach calling males, and serve to emphasize that playback experiments conducted at a single level may have limited generality.
Temperature coupling in cricket acoustic communication
  • A. Pires, R. Hoy
  • Environmental Science
    Journal of Comparative Physiology A
  • 2004
TLDR
The song and phonotaxis data demonstrate that this communication system is temperature coupled, and a strategy is outlined by which temperature coupling may be exploited to test hypotheses about the organization of neural networks subserving song recognition.
Species specificity of temporal processing in the auditory midbrain of gray treefrogs: long-interval neurons
In recently diverged gray treefrogs (Hyla chrysoscelis and H. versicolor), advertisement calls that differ primarily in pulse shape and pulse rate act as an important premating isolation mechanism.
Phonotactic selectivity in two cryptic species of gray treefrogs: effects of differences in pulse rate, carrier frequency and playback level.
TLDR
Standard synthetic calls with one of these spectral peaks and the pulse rate typical of conspecific calls were tested against synthetic alternatives that had the same spectral peak but a different pulse rate, and greater pulse-rate selectivity was usually observed when the low-frequency rather than the high-frequency peak was used.
Directional hearing in the gray tree frog Hyla versicolor: Eardrum vibrations and phonotaxis
TLDR
The vibrational frequency response of the eardrum of female gray tree frogs for different positions of the sound source in three-dimensional space was used to study the accuracy of 3-D phonotaxis in the same species for sounds with different frequency contents.
Phonotaxis to male’s calls embedded within a chorus by female gray treefrogs, Hyla versicolor
TLDR
Investigation of females’ responses to natural choruses in the field found that they were attracted and showed directed orientation to breeding chorused at distances up to 100 m, but unlike the field experiments, females oriented and were attracted to chorus sounds from 1 to 32 m only, but not from >32 M, or to band-limited noise.
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