Long-term maintenance and eventual extinction of preference for a mate's call in the female budgerigar
Long-term maintenance and eventual extinction of preference for a mate's call in the female budgerigar
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DOI：
10.1016/j.anbehav.2011.07.030
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发表时间：
2011-11-01
期刊：
影响因子：
2.5
通讯作者：
Miyamoto, Takenori
中科院分区：
文献类型：
--
作者：
Eda-Fujiwara, Hiroko;Kanesada, Aya;Miyamoto, Takenori
听觉记忆对于鸟类的配偶识别和一夫一妻制物种长期维持配对关系至关重要。与大多数鸟类不同，鹦鹉可以模仿声音直到成年。在配对的过程中，雄性虎皮鹦鹉，Melopsittacus undulatus，这是一种一夫一妻制的鹦鹉，模仿雌性的叫声。这种模仿导致两个调用的收敛。我们研究了是否以及多久的听觉记忆的配偶的呼叫影响女性行为的关系，对债券的维护，在这个声音塑料物种。雌性与雄性配对，然后分开，没有来自配偶的听觉/视觉刺激。女性回应他们分开的配偶，这已被记录之前对形成的呼叫，显着超过一个不熟悉的男性的呼叫。这些女性继续表现出偏好各自的配偶的电话在分离后1个月和2个月，表明在没有刺激的情况下，配偶的电话的听觉记忆保留了至少1个月。这些结果表明，长时听觉记忆介导了雌性虎皮鹦鹉对配偶呼唤的优先反应。然而，雌性动物在分离6个月后不再偏爱配偶的呼唤，表明雌性动物的偏好反应最终消失。我们讨论的可能性，优先反应的灭绝可能被解释为一个潜在的机制以外的衰减的听觉记忆。(C)2011年，动物行为研究协会。由爱思唯尔有限公司出版。保留所有权利。
Auditory memory is crucial for mate recognition in birds and for long-term maintenance of pair bonds in monogamous species. Parrots, unlike the majority of birds, can imitate sounds into adulthood. During pair bond formation, male budgerigars, Melopsittacus undulatus, which are monogamous parrots, imitate the calls of females. This imitation results in convergence of the two calls. We examined whether and how long the auditory memory of a mate's call affects female behaviour in relation to pair bond maintenance in this vocally plastic species. Females were paired with a male and then separated, without auditory/visual stimulation from the mate. Females responded to the calls of their separated mates, which had been recorded prior to pair formation, significantly more than to a call from an unfamiliar male. These females continued to show a preference for their respective mates' calls at 1 and 2 months after separation, demonstrating that the auditory memory of the mate's call was retained for at least 1 month in the absence of stimulation from the mate. These results show that long-term auditory memory mediates the preferential response to a mate's call in female budgerigars. However, females ceased to prefer their mates' calls after 6 months of separation, indicating that the preference response of females is eventually extinguished. We discuss the possibility that the extinction of the preferential response may be explained by an underlying mechanism other than the decay of auditory memory. (C) 2011 The Association for the Study of Animal Behaviour. Published by Elsevier Ltd. All rights reserved.