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Zoological Research
Kunming Institute of Zoology, Chinese Academy of Sciences
ISSN: 2095-8137
Vol. 31, No. 5, 2010, pp. 523-530
Bioline Code: zr10071
Full paper language: Chinese
Document type: Research Article
Document available free of charge

Zoological Research, Vol. 31, No. 5, 2010, pp. 523-530

 en Ethogram of Yangtze finless porpoise calves (Neophocaena phocaenoides asiaeorientalis)
Yi-Jie, Xian; Ke-Xiong, Wang; Wen-Hua, Jiang; Bang-You, Zheng & Ding, Wang

Abstract

Underwater behavioral patterns of one Yangtze finless porpoise (Neophocaena phocaenoides asiaeorientalis) calf in captivity and those performed on the water surface by two calves in semi-natural environment were focally followed and continuously recorded until one year postpartum to construct the ethogram. The results indicate that 1) the three calves could display diverse and active behavioral patterns; 2) soon after birth, patterns critical for survival appeared first; 3) playful and social patterns predominated the ethogram; 4) most of the patterns were alike across age classes; 5) most of the patterns appeared at the calves’ early life stage. It is possible that the above characteristics are adaptively shaped by the aquatic and social life of this subspecies.

Keywords
Neophocaena phocaenoides asiaeorientalis; Calf; Behavioral pattern; Aquatic environment

 
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Alternative site location: http://www.zoores.ac.cn/

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