Evaluating the design of mate-choice experiments: the effect of amplexus on mate choice by female barking treefrogs, Hyla gratiosa
Article Abstract:
Females of barking treefrogs (Hyla gratiosa) are captured and tested for mate choice discrimination twice the same night, before and after entering amplexus. Females in amplexus are as discriminating as females that have not entered amplexus. In the playback experiment, females are presented with two different calls in terms of repetition rate or fundamental frequency. The proportion of female choice is same in both before and after tests. The number of switching choices is also equal in either direction. The time of testing or the time spent in amplexus failed to influence female response.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1996
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Stabilizing and directional preferences of female Hyla ebraccata for calls differing in static properties
Article Abstract:
Computer-synthesized calls differing in pulse-repetition rate or dominance frequency were used to determine the preferences of the female frogs belonging to the species Hyla ebraccata. The females of these species were shown to prefer low-frequency calls. Since size is negatively correlated with call frequency, this may be the mechanism used by females to identify larger males through their calls and probably the reason why larger males have better reproductive success in the wild.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1998
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The effect of call amplitude on male spacing in choruses of barking treefrogs, Hyla gratiosa
Article Abstract:
The effect of the amplitude of resident calls on the spacing of arriving male barking treefrogs, Hyla gratiosa, is investigated by placing two speakers, one playing advertisement calls 6 dB more intense than the other, at the chorus site and beginning playback before males arrived at the chorus. The results show that the immediate benefit of producing high-amplitude signals to males may differ at different chorus densities.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 2005
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