...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Animal Cognition >Acoustic communication in crocodilians: information encoding and species specificity of juvenile calls
【24h】

Acoustic communication in crocodilians: information encoding and species specificity of juvenile calls

机译：鳄鱼中的声学交流：少年叫声的信息编码和物种特异性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In the Crocodylia order, all species are known for their ability to produce sounds in several communication contexts. Though recent experimental studies have brought evidence of the important biological role of young crocodilian calls, especially at hatching time, the juvenile vocal repertoire still needs to be clarified in order to describe thoroughly the crocodilian acoustic communication channel. The goal of this study is to investigate the acoustic features (structure and information coding) in the contact call of juveniles from three different species (Nile crocodile Crocodylus niloticus, Black caiman, Melanosuchus niger and Spectacled caiman, Caiman crocodilus). We have shown that even though substantial structural differences exist between the calls of different species, they do not seem relevant for crocodilians. Indeed, juveniles and adults from the species studied use a similar and non-species-specific way of encoding information, which relies on frequency modulation parameters. Interestingly, using conditioning experiments, we demonstrated that this tolerance in responses to signals of different acoustic structures was unlikely to be related to a lack of discriminatory abilities. This result reinforced the idea that crocodilians have developed adaptations to use sounds efficiently for communication needs.
机译：在鳄科中，所有物种都以在多种交流环境中产生声音的能力而闻名。尽管最近的实验研究已经证明了年轻的鳄鱼皮呼叫的重要生物学作用，尤其是在孵化时，但仍需要弄清少年声乐曲目，以全面描述鳄鱼皮的声音交流通道。这项研究的目的是调查来自三种不同物种（尼罗鳄，尼罗河黑鳄，黑鳄鳄，黑鳄鳄和眼镜凯门鳄，凯门鳄）的幼鱼接触时的声学特征（结构和信息编码）。我们已经表明，即使不同物种的呼唤之间存在实质性的结构差异，但它们似乎与鳄鱼无关。实际上，来自所研究物种的未成年人和成年人都使用类似且非特定物种的信息编码方式，该方式依赖于调频参数。有趣的是，使用条件实验，我们证明了这种对不同声学结构的信号响应的容忍度可能与缺乏辨别能力有关。这个结果强化了鳄鱼已经发展出适应能力，以有效地利用声音满足交流需求的想法。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号