The ontogeny of echolocation in a Yangtze finless porpoise (Neophocaena phocaenoides asiaeorientalis)
The ontogeny of echolocation in a Yangtze finless porpoise (Neophocaena phocaenoides asiaeorientalis)
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DOI：
10.1121/1.2747203
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发表时间：
2007-08-01
影响因子：
2.4
通讯作者：
Akamatsu, Tomonari
中科院分区：
文献类型：
--
作者：
Li, Songhai;Wang, Ding;Akamatsu, Tomonari
本文报道了人工饲养条件下1头雄性长江江豚（Neophocaena phocaenoides asiaeorientalis）的声学和同期行为数据。小牛点击列车首次记录在出生后22天，与头部扫描运动结合的点击列车发射的小牛的探索行为的频率随着年龄的增长逐渐增加。在第一次记录到的咔哒声中，回声定位咔哒声与成年人的咔哒声没有区别。小牛回声定位列车的最大点击重复率，持续时间和点击次数随着年龄的增长而减少。最小点击重复率保持更一致。(c)2007年，美国声学学会。
Acoustic and concurrent behavioral data from one neonatal male Yangtze finless porpoise (Neophocaena phocaenoides asiaeorientalis) in captivity were presented. The calf click train was first recorded at 22 days postnatal, and the frequency of hydrophone-exploration behavior with head scanning motions in conjunction with emissions of click trains by the calf increased gradually with age. The echolocation clicks in the first recorded click train were indistinguishable from those of adults. Calf echolocation trains were found to decrease in maximum click-repetition rate, duration, and number of clicks per train with age while the. minimum click-repetition rate remained more consistent. (c) 2007 Acoustical Society of America.