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Dongwuxue Yanjiu. 2013 Jun;34(3):196-203.

[Comparison of mating calls and adaptive strategies of Amolops wuyiensis and Odorrana tormotus (Anura) in noise-controlled environments].

[Article in Chinese; Abstract available in Chinese from the publisher]

Author information

  • 1College of Life Science, Anhui Normal University, Wuhu 241000, China. biozhf@mail.ahnu.edu.cn.

Abstract

in English, Chinese

In order to understand the acoustic characteristics and adaptive strategies of sympatric male Amolops wuyiensis and male Odorrana tormotus in environments controlled for high noise levels, we recorded and analyzed the advertisement calls produced by individual males during breeding season. The results show that A. wuyiensis produced a single type of call composed of variable syllables (from 3 to 6 syllables) with 2~10 pulses over different time periods. The average values of call duration, dominant frequency and signal noise ratio were 2 198.20 ms, 2 231.90 Hz and 33.00 dB respectively. There were no ultrasonic elements in A. wuyiensis calls and they did not have the basis of ultrasonic communication. The average values of call duration, dominant frequency and signal noise ratio of O. tormotus were 331.80 ms, 6 665.50 Hz and 37.00 dB respectively. Call structure of O. tormotus was consistent with previous studies. The noise did not mask the calls from the male A. wuyiensis and male O. tormotus, which have higher frequencies and amplitudes. To fulfill the intra-species communication in a noise-controlled environment, the A. wuyiensis male, which has a low vocal frequency and long transmission length, varied vocal frequency, composition, and duration, the latter of which serves to attract females. By contrast, the male O. tormotus increased vocal frequency, which reduces the energy expended on intra-species communication.

KEYWORDS:

Adaptive strategy; Amolops wuyiensis; Mating Advertisement call; Noise; Odorrana tormotus

PMID:
23775995
[PubMed - indexed for MEDLINE]
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