Burmeister S, Wilczynski W, Ryan MJ
Institute for Neuroscience, University of Texas at Austin
Anim Behav. 1999 Mar;57(3):611-618. doi: 10.1006/anbe.1998.1033.
We investigated how male cricket frogs Acris crepitans, alter their advertisement calls in response to broadcasts of synthetic calls that were either 'attractive' or 'aggressive'. The stimulus calls differed in temporal but not spectral characteristics. Male cricket frogs produced a more aggressive call when presented with the aggressive stimulus, indicating that they perceived the temporal differences between the two call categories. The direction and degree of temporal and spectral changes depended on the relative dominant frequency of the resident and opponent. If the resident's dominant frequency was initially higher than the stimulus frequency, the pattern of change in dominant frequency mirrored that seen for the temporal call characters. In contrast, if the resident's initial dominant frequency was below that of the stimulus, then the temporal and spectral changes were in opposite directions. Furthermore, stimulus order influenced whether males responded differently to playbacks of aggressive and attractive calls; males that received the aggressive call first produced more aggressive calls during the aggressive stimulus, while males that received the attractive call first produced similar calls in response to the two stimuli. This suggests that experience with different types of signals influences the subsequent calling behaviour of male cricket frogs. Copyright 1999 The Association for the Study of Animal Behaviour.
我们研究了雄性蟋蟀蛙（Acris crepitans）如何根据播放的“有吸引力的”或“具有攻击性的”合成叫声来改变其求偶叫声。刺激叫声在时间特征上有所不同，但频谱特征相同。当呈现具有攻击性的刺激时，雄性蟋蟀蛙会发出更具攻击性的叫声，这表明它们能够感知到这两种叫声类型在时间上的差异。时间和频谱变化的方向和程度取决于本地雄性和对手的相对主频。如果本地雄性的主频最初高于刺激频率，主频的变化模式与时间叫声特征的变化模式相似。相反，如果本地雄性的初始主频低于刺激频率，那么时间和频谱变化则方向相反。此外，刺激顺序会影响雄性对攻击性和有吸引力叫声回放的反应是否不同；首先接收到攻击性叫声的雄性在攻击性刺激期间会发出更具攻击性的叫声，而首先接收到有吸引力叫声的雄性对这两种刺激的反应相似。这表明对不同类型信号的体验会影响雄性蟋蟀蛙随后的叫声行为。版权所有1999年动物行为研究协会。
