Calls of the Large Odorous Frog(Odorrana graminea)Show Nonlinear and Individual Characteristics  

作　　者：Fang ZHANG Yatao WU Jinmei WANG Jiahui BAO 

机构地区：[1]College of Life Sciences,Azhui Normal University,Wuhu 241000,Anhui,China [2]Anhui Provincial Key Laboratory of the Conservation and Exploitation of Biological Resources,Wuhu 24100O,Anlhui,China

出　　处：《Asian Herpetological Research》2021年第1期124-134,共11页亚洲两栖爬行动物研究（英文版）

基　　金：by a grant from the National Natural Science Foundation of China to F.Zhang(NSFC grants 31640073,31872230)。

摘　　要：Male large odorous frogs(Odorrana graminea)have been shown to have a rich vocal repertoire and their calls contain harmonics that extend into the ultrasonic range,much like calls of male O.tormota,a sympatric species.Whereas vocalizations of male O.tormota exhibit nonlinear characteristics and contain individual signatures,it is unclear whether or not those of O.graminea do.We carried out an extensive study of the vocalizations of male O.graminea with the goal of investigating whether they:(1)contained nonlinear phenomena(NLP),(2)carried individual signatures.We recorded and analyzed 1770 vocal calls from nine males.Their calls were classifiable into two distinct categories(one-note calls and multi-note calls).Of these,one-note complex/steep-frequency modulation call was the most abundant call-type.These calls showed diverse frequency modulation patterns,and abundant presence of NLP.Various basic spectral and temporal pa ra meters of such calls were individually distinct.Kruskal-Wallis Analysis of Rank test showed that the calls from individual males differed significantly.Subsequent discriminant function analysis(DFA)showed that 54.7%of the calls could be correctly assigned to individual.These results suggested that male O.graminea might be able to discriminate neighboring frogs from strangers acoustically.However,further research is necessary to demonstrate this capacity behaviorally.

关 键 词：ANURANS call-type individual signatures nonlinear phenomena sound communication 

分 类 号：Q62[生物学—生物物理学]