Context-specific use suggests that bottlenose dolphin signature whistles are cohesion calls
Context-specific use suggests that bottlenose dolphin signature whistles are cohesion calls
复制标题
DOI：
10.1006/anbe.1998.0881
复制
发表时间：
1998-10-01
期刊：
影响因子：
2.5
通讯作者：
Slater, PJ
中科院分区：
文献类型：
--
作者：
Janik, VM;Slater, PJ
对圈养宽吻海豚（Tursiops trumcatus）的研究表明，每只宽吻海豚都会发出一种刻板的、个体特定的标志性哨声。然而，没有研究表明这些口哨的使用方式与语境有明显的相关性。因此，标志口哨用于维持群体凝聚力的假设仍未得到检验。为了调查标志性口哨是否仅在需要维持群体凝聚力的机制的情况下使用，我们检查了四只圈养宽吻海豚在两种情况下的口哨类型使用情况。当个体与群体分开以及都在同一个泳池中游泳时，记录下来。当一只动物游进另一个水池时，分离会自发发生。在分离之前没有使用隔板，海豚之间也没有发生攻击性的相互作用。通过比较两个池中记录的相同声音的幅度来识别叫声动物。当每只海豚与群体分开时，它首先会发出一种刻板的标志性哨声。同样，如果一只动物在单独的池中，则另一个池中的其余组也主要使用其标志性口哨。如果所有动物都在同一个池子里游泳，则几乎只使用非签名口哨。模仿口哨的情况很少见，也不会引发特定声音反应的团聚。结果有力地支持了这样的假设：标志口哨用于维持群体凝聚力。 (C) 1998 动物行为研究协会
Studies on captive bottlenose dolphins, Tursiops trumcatus, have shown that each individual produces a stereotyped, individually specific signature whistle; however, no study has demonstrated clear context-dependent usage of these whistles. Thus, the hypothesis that signature whistles are used to maintain group cohesion remains untested. To investigate whether signature whistles are used only in contexts that would require a mechanism to maintain group cohesion, we examined whistle type usage in a group of four captive bottlenose dolphins in two contexts. Individuals were recorded while they were separate from the group and while they all swam in the same pool. Separations occurred spontaneously when one animal swam into another pool. No partitions were used and no aggressive interactions between dolphins preceded separations. Calling animals were identified by an amplitude comparison of the same sound recorded in the two pools. Each dolphin primarily produced one stereotyped signature whistle when it was separated from the group. Similarly the remaining group in the other pool also used primarily their signature whistles if one animal was in a separate pool. If all animals swam in the same pool almost only nonsignature whistles were used. Signature whistle copying was rare and did not initiate reunions pr specific vocal responses. The results strongly support the hypothesis that signature whistles are used to maintain group cohesion. (C) 1998 The Association for the Study of Animal Behaviour