SEXUAL SELECTION IN THE RAUCOUS TOAD, BUFO-RANGERI
SEXUAL SELECTION IN THE RAUCOUS TOAD, BUFO-RANGERI
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DOI：
10.1006/anbe.1993.1041
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发表时间：
1993-02-01
期刊：
影响因子：
2.5
通讯作者：
CHERRY, MI
中科院分区：
文献类型：
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作者：
CHERRY, MI
在一项为期3年的研究中，沙哑的蟾蜍的配偶选择总是由雌性决定的;雄性竞争只是为了保持自己周围的专属声学区域。影响雄性交配成功的一个重要因素是在繁殖季节期间，个体雄性在繁殖地点的夜晚数量，这持续了大约4个月。雄性的体重下降，而呼吁在网站上，并在觅食期间增加的重量远离it. Mating成功是不相关的男性的大小，也没有任何证据表明，通过大小的强制性交配。在择偶实验中，雌性更喜欢重复频率快的合成叫声，这一特征在研究的种群中既因配偶而异，又与雄性交配成功相关。此外，个体雄性的平均呼叫率越高，其平均每日体重减轻越大。这些结果进行了讨论，关于“好基因”，而不是“好味道”的性选择模型。
In a 3-year study of the raucous toad mate choice was always determined by the female; males competed only to maintain exclusive acoustic zones around themselves. An important factor influencing male mating success was the number of nights an individual male was present at the breeding site during the breeding season, which lasted for approximately 4 months. Males lost weight while calling at the site, and gained weight during foraging trips away from it. Mating success was not related to male size, nor was there any evidence of assortative mating by size. In mate-choice experiments, females preferred synthetic calls with a fast repetition rate, a trait that both varied between mates and correlated with male mating success, in the population studied. Furthermore, the higher the mean call rate of an individual male, the greater was his mean daily weight loss. These results are discussed with regard to 'good genes' as opposed to 'good taste' models of sexual selection.