Intraspecific variation in advertisement call characteristics and acoustic strategies among male forest green tree frogs
Intraspecific variation in advertisement call characteristics and acoustic strategies among male forest green tree frogs
复制标题
DOI：
10.1002/1438-390x.12153
复制
发表时间：
2023-05
影响因子：
1.7
通讯作者：
Nobunosuke Itakura;M. Sakai;Ryohei Sato;Shogo Nishihara;Takehito Yoshida;I. Washitani
中科院分区：
文献类型：
--
作者：
Nobunosuke Itakura;M. Sakai;Ryohei Sato;Shogo Nishihara;Takehito Yoshida;I. Washitani
青蛙是一个典型的分类群，使用广告呼吁，以帮助繁殖。在大多数青蛙物种中，叫声随体型大小而变化，体型大小和叫声频率之间的异速生长限制在无尾类物种中已被广泛报道。虽然这种变化是青蛙性选择的重要驱动力，但雄性广告呼叫策略也可能因体型而异。本研究以雄性绿色树蛙（Zhangixalus arboreus）为研究对象，通过播放实验研究了个体大小和种内合唱噪声幅值对雄性树蛙广告鸣叫特征和策略的影响。结果表明，较大个体的叫声比较小个体的叫声更大，更低，较小个体的叫声更频繁;而且，随着噪声水平的增加，叫声变得更低，叫声数量减少。这些研究结果表明，森林绿色树蛙发出较低的呼吁或抑制呼叫时，合唱噪音增加，种内的变化，广告呼叫特性可以诱导不同的策略，在响应合唱噪音。由于广告呼叫与身体大小的变化是常见的青蛙物种，种内的变化，男性广告呼叫策略也可能是一种常见的现象。
Frogs are a representative taxon that use advertisement calls to aid in reproduction. In most frog species, calls vary with body size, and allometric constraints between body size and call frequency have been widely reported among anuran species. Although this variation is an important driver of sexual selection in frogs, male advertisement call strategies may also vary according to body size. In this study, we conducted playback experiments on the male forest green tree frog (Zhangixalus arboreus) to determine whether male advertisement call characteristics and strategies vary according to body size and the amplitude of intraspecific chorus noise. The results indicated that the calls of larger individuals are louder and lower than those of smaller ones, who call more frequently; moreover, the calls become lower, and the number of calls decreases, as noise levels increase. These findings suggest that forest green tree frog emits lower calls or refrains from calling when chorus noise increases, and that intraspecific variation in advertisement call characteristics can induce different strategies in response to chorus noise. Because advertisement call variation with body size is common among frog species, intraspecific variation in male advertisement call strategies may also be a common phenomenon.