Isoherranen E, Aspi J, Hoikkala A
Department of Biology, University of Oulu
Anim Behav. 1999 Mar;57(3):619-625. doi: 10.1006/anbe.1998.0981.
To study the variation and consistency of song preferences in Drosophila virilis females, we played them species-specific song and songs with modified sound pulses and/or interpulse intervals on 3 consecutive days. Species-specific song was played again on the fourth day. All playbacks were done without the presence of males. About 62% of the females indicated their readiness to mate by spreading their wings in at least one of the trials. The proportion of the females responding to species-specific song was about twice that of the females responding to modified songs. The majority of females responded to only one song type, which suggests that the females varied in their preferences and that their preference windows were rather narrow. The females were consistent in their responsiveness to species-specific song played on 2 days. If the female responded to normal song during the first trial, the probability of her responding to the same song during the second trial increased by about 32%. The number of songs required by the females before responding in the two subsequent trials was also correlated within the females (repeatability 0.328). Repeatability of female preferences for male sexual traits is expected both in the viability and Fisherian models of sexual selection. Copyright 1999 The Association for the Study of Animal Behaviour.
为了研究雄性果蝇雌性个体对歌声偏好的变化及一致性，我们在连续三天向它们播放特定物种的歌声以及声音脉冲和/或脉冲间隔经过修改的歌声。第四天再次播放特定物种的歌声。所有播放过程均在无雄性存在的情况下进行。约62%的雌性个体在至少一次试验中通过展开翅膀表明它们准备好交配。对特定物种歌声做出反应的雌性比例约为对修改后歌声做出反应的雌性比例的两倍。大多数雌性只对一种歌声类型做出反应，这表明雌性个体的偏好存在差异，且它们的偏好范围相当狭窄。雌性个体对连续两天播放的特定物种歌声的反应具有一致性。如果雌性在第一次试验中对正常歌声做出反应，那么在第二次试验中对同一歌声做出反应的概率会增加约32%。在随后的两次试验中，雌性个体做出反应前所需的歌声数量在个体内部也具有相关性（重复率为0.328）。在性选择的生存能力模型和费希尔模型中，都预期雌性对雄性性特征的偏好具有重复性。版权所有1999动物行为研究协会。
