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Zoological Research
Kunming Institute of Zoology, Chinese Academy of Sciences
ISSN: 2095-8137
Vol. 26, No. 6, 2005, pp. 590-594
Bioline Code: zr05056
Full paper language: Chinese
Document type: Research Article
Document available free of charge

Zoological Research, Vol. 26, No. 6, 2005, pp. 590-594

 en A Comparison Among the Calls of Four Penguin Species
WANG Yi-nan, LIANG Bing, ZHANG Shu-yi

Abstract

In this paper we analyze the calls of four penguin species ( Aptenodytes patagonica check for this species in other resources , Eudyptes chrysolophus check for this species in other resources , Pygoscelis papua check for this species in other resources , Pygoscelis antarctica check for this species in other resources ) recorded in the Antarctic. We analyze the sonogram and power spectrum of the calls and make a comparison among different species in call duration, maximum frequency, minimum frequency and peak frequency. When comparing the temporal and spectral characteristics of their calls we found out that these four species have obvious interspecific variation in the call structure, making it possible for different species to distinguish each other by vocalization. Our results also indicate that the structure of the calls of Aptenodytes patagonica check for this species in other resources - a non-nesting species, is more complex than that of the other three nesting species.

Keywords
Penguin calls, Nesting, Non-nesting, Interspecific variation

 
© Copyright 2005 Kunming Institute of Zoology, the Chinese Academy of Sciences
Alternative site location: http://www.zoores.ac.cn/

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