Yatao WU,Jiahui BAO,Pingshin LEE,et al.Nonlinear Phenomena Conveying Body Size Information and Improving Attractiveness of the Courtship Calls in the Males of Odorrana tormota[J].Asian Herpetological Research(AHR),2021,12(1):117-123.[doi:10.16373/j.cnki.ahr.200028]
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Nonlinear Phenomena Conveying Body Size Information and Improving Attractiveness of the Courtship Calls in the Males of Odorrana tormota
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Asian Herpetological Research[ISSN:2095-0357/CN:51-1735/Q]

2021 VoI.12 No.01
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Nonlinear Phenomena Conveying Body Size Information and Improving Attractiveness of the Courtship Calls in the Males of Odorrana tormota
Yatao WU1 Jiahui BAO1 Pingshin LEE1 Jinmei WANG1 Sheng WANG1 Fang ZHANG12*
1College of Life Sciences, Anhui Normal University, Wuhu 241000, Anhui, China
2 Anhui Provincial Key Laboratory of the Conservation and Exploitation of Biological Resources, Wuhu 241000, Anhui, China
body size mate choice nonlinear phenomena Odorrana tormota phonotaxis
Nonlinear phenomena are commonly shown in the vocalization of animals and exerts different adaptive functions. Although some studies have pointed out that nonlinear phenomena can enhance the individual identification of male Odorrana tormota, whether the nonlinear phenomena play a specific role in the sexual selection of O. tormota remain unclear. Here we presented evidence that there was a significant negative correlation (Pearson: n = 30, r = 0.65, P < 0.001) between the nonlinear phenomena content and snout-vent length in the male O. tormota, and two-choice amplexus experiments showed that female O. tormota preferred male with smaller body size containing higher nonlinear phenomena content in its calls. Phonotaxis experiments also revealed that females preferred calls with higher nonlinear phenomena content. Additionally, compared to the calls with lower nonlinear phenomena content and higher fundamental frequency, there was shorter response time in phonotactic behaviour of female induced by the calls with higher nonlinear phenomena content and lower fundamental frequency. We argue that the nonlinear phenomena content in the calls of male O. tormota can convey its body size information and may provide important clues for female frogs in darkened surroundings to identify males’ body size during mate choice, meanwhile, higher nonlinear phenomena content in males’ calls may increase the attractiveness of males to females. The results of this study provide confirmation that, for O. tormota, nonlinear phenomena have specific function in mate choice.


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Last Update: 2021-03-25