Data from: Uncoordinated dances associated to high reproductive success in the crane

Coordinated mutual displays by two individuals are believed to play important roles in social and sexual communication. Although previous studies have described mutual displays in birds, few have conducted quantitative analyses. To understand the role of mutual signals, we investigated the reproductive function of pair dances in the red-crowned crane (Grus japonensis). We used an information theory approach to quantify the characteristics of the pair dance and tested the classical “pair bond hypothesis,” which states that the elaborate dance is related to reproductive success. We found that characteristics of the pair dances were related to reproductive success, but the results were not always consistent with the predictions. Dance duration increased as the breeding season approached. However, the past reproductive success of an individual was negatively related to dance coordination (i.e. mutual information) of a pair. These results partially support the pair bond hypothesis, but more importantly, also suggest the need to define the vague concept of a “pair bond” in a biologically reasonable, measurable way.人们普遍认为，两只个体间的协同互示行为在社交与性通讯中发挥着重要作用。尽管过往已有研究对鸟类的相互展示行为进行了描述，但鲜有研究开展定量分析。为阐明互示信号的作用，我们针对丹顶鹤（Grus japonensis）的配对舞繁殖功能展开了研究。我们采用信息论方法量化配对舞的特征，并检验了经典的「配对纽带假说（pair bond hypothesis）」——该假说提出，复杂精巧的舞蹈行为与繁殖成功率相关。研究发现，配对舞的特征与繁殖成功率存在关联，但结果并不完全契合假说的预测：随着繁殖季临近，舞蹈时长会逐渐增加；然而，个体过往的繁殖成功率与配对的舞蹈协同性（即互信息（mutual information））呈负相关。这些结果部分支持了配对纽带假说，但更重要的是，其也表明我们需要以生物学合理且可量化的方式，界定「配对纽带」这一模糊概念。

搜集汇总

背景与挑战

背景概述

该数据集包含红顶鹤配对舞蹈的原始数据，用于研究舞蹈特征与繁殖成功的关系。研究发现舞蹈持续时间随繁殖季节接近而增加，但舞蹈协调性（互信息）与过去繁殖成功呈负相关，部分支持并挑战了'配对纽带假说'。数据旨在量化动物互示行为，促进对生物沟通机制的理解。