Signal complexity in apteronotids

These data were used to partially examine the social complexity hypothesis for communicative complexity in the electric modality. South American electric knifefishes produce signals called chirps, or brief modulations of the baseline electric organ discharge frequency used during social interaction. Variation in chirp parameters and complexity were calculated from recordings collected in response to artificial playback for six species of apteronotid electric knifefishes that vary in social behavior - territorial Parapteronotus hasemani, semi-social Apteronotus leptorhynchus, territorial Apteronotus albifrons, territorial 'Apteronotus' bonapartii, gregarious Adontosternarchus devenanzii, and gregarious Adontosternarchus balaenops. Animal care and experimental protocols were approved by the Indiana University Bloomington Institutional Animal Care and Use Committee.本数据集用于部分验证电信号模态下通讯复杂度的社会复杂度假说（social complexity hypothesis）。南美电刀鱼会发出两类信号：一类被称为啭鸣（chirps），另一类则是社交互动期间对基线电器官放电频率进行的短暂调制。针对6种社交行为存在差异的裸背电鳗科（apteronotid）电刀鱼，研究人员利用人工回放刺激采集的录音样本，计算得到了啭鸣参数的变异程度与复杂度。该6个物种分别为：领地性的哈氏副背电鳗（Parapteronotus hasemani）、半社会性的细尾翎电鳗（Apteronotus leptorhynchus）、领地性的白顶翎电鳗（Apteronotus albifrons）、领地性的‘裸背电鳗’（'Apteronotus' bonapartii）、群居性的德氏无齿电鳗（Adontosternarchus devenanzii）以及群居性的鲸形无齿电鳗（Adontosternarchus balaenops）。本研究的动物饲养与实验方案已获得印第安纳大学布卢明顿分校动物护理与使用委员会（Indiana University Bloomington Institutional Animal Care and Use Committee）的批准。