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Zoological Research
Kunming Institute of Zoology, Chinese Academy of Sciences
ISSN: 2095-8137
Vol. 29, No. 1, 2008, pp. 95-98
Bioline Code: zr08015
Full paper language: Chinese
Document type: Research Article
Document available free of charge

Zoological Research, Vol. 29, No. 1, 2008, pp. 95-98

 en Characteristics and Analysis of Echolocation Calls by Coelops frithi check for this species in other resources
LIU Sen; JIANG Ting-lei; SHI Li-min; YE Gen-xian & FENG Jiang

Abstract

The echolocation calls of Coelops frithi check for this species in other resources were recorded during free flight using an ultrasonic detector U30, and were analyzed using the software Batsound 3.0. Our results showed that C. frithi emitted high frequency (145.4±10.9 kHz), broad bandwidth (62.6±9.2 kHz), and short (1.67±0.4 ms) frequency-modulated (FM) calls with 2 harmonics, which suggested polymorphic echolocation calls in Hipposideridae because other hipposiderid species emitted constant frequency (CF) calls. The analysis of the cranial measurements of C. frithi indicated that it was a nasal emitter like other hipposiderids, which suggested the single emitting form in this family. We considered that C. frithi emitted FM calls mainly due to the selection pressure of evolution and the adaptability between wing morphology and echolocation calls.

Keywords
Chiroptera;Coelops frithi;Echolocation calls;FM

 
© Copyright 2008 Kunming Institute of Zoology, the Chinese Academy of Sciences
Alternative site location: http://www.zoores.ac.cn/

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