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Why do Chinese alligators (Alligator sinensis) form bellowing choruses: A playback approach
Wang, Xianyan1,2; Wang, Ding1; Zhang, Song3; Wang, Chaolin3; Wang, Renping3; Wu, Xiaobing4; Wang, D, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2009-10-01
Source PublicationJOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
ISSN0001-4966
Volume126Issue:4Pages:2082-2087
AbstractCrocodilians are quite vocal relative to other reptile groups, and the alligators are among the most vocal of the crocodilians. The Chinese alligator, Alligator sinensis, is usually solitary but engages in bellowing choruses in certain waters during the mating season. This paper reports the organization of Chinese alligator's bellowing choruses based upon field observations and playback experiments. Alligators of both genders engaged in the choruses, remaining immobile throughout and inclining toward bellowing synchronously (i.e., starting and finishing at about the same time). The choruses lasted about 10 min with abrupt onset and offset. Moreover, playback experiments revealed that both male and female alligators responded equally to bellowing stimuli from the same and opposite sexes and that none of the tested alligators approached the loudspeaker in spite of playback of male or female stimuli. These suggest that Chinese alligators. may not bellow to compete for or attract mates during the choruses. Instead, when their ecological behaviors, namely, dispersed inhabitation, multi-copulation, restricted mating season, etc., are considered, we hypothesize that they may synchronize bellows to enhance group detectability for assembling individuals into certain waters for subsequent copulations. (C) 2009 Acoustical Society of America. [DOI: 10.1121/1.3203667]; Crocodilians are quite vocal relative to other reptile groups, and the alligators are among the most vocal of the crocodilians. The Chinese alligator, Alligator sinensis, is usually solitary but engages in bellowing choruses in certain waters during the mating season. This paper reports the organization of Chinese alligator's bellowing choruses based upon field observations and playback experiments. Alligators of both genders engaged in the choruses, remaining immobile throughout and inclining toward bellowing synchronously (i.e., starting and finishing at about the same time). The choruses lasted about 10 min with abrupt onset and offset. Moreover, playback experiments revealed that both male and female alligators responded equally to bellowing stimuli from the same and opposite sexes and that none of the tested alligators approached the loudspeaker in spite of playback of male or female stimuli. These suggest that Chinese alligators. may not bellow to compete for or attract mates during the choruses. Instead, when their ecological behaviors, namely, dispersed inhabitation, multi-copulation, restricted mating season, etc., are considered, we hypothesize that they may synchronize bellows to enhance group detectability for assembling individuals into certain waters for subsequent copulations. (C) 2009 Acoustical Society of America. [DOI: 10.1121/1.3203667]
SubtypeArticle
KeywordTreefrog Hyla-ebraccata Male Calling Behavior Neotropical Treefrog Female Choice Acoustic Interference American Alligator Sexual Selection Mating Success Communication Evolution
Department[Wang, Xianyan; Wang, Ding] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; [Wang, Xianyan] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China; [Zhang, Song; Wang, Chaolin; Wang, Renping] Anhui Res Ctr Chinese Alligator Reprod, Xuancheng 242034, Peoples R China; [Wu, Xiaobing] Anhui Normal Univ, Coll Life Sci, Wuhu 241000, Peoples R China
Subject AreaAcoustics
DOI10.1121/1.3203667
WOS HeadingsScience & Technology ; Technology ; Life Sciences & Biomedicine
Funding OrganizationNational Basic Research Program of China [2007CB411600]; National Natural Science Foundation of China [30730018] ; National Basic Research Program of China [2007CB411600]; National Natural Science Foundation of China [30730018] ; National Basic Research Program of China [2007CB411600]; National Natural Science Foundation of China [30730018] ; National Basic Research Program of China [2007CB411600]; National Natural Science Foundation of China [30730018]
Indexed BySCI
Language英语
WOS Research AreaAcoustics ; Audiology & Speech-Language Pathology
WOS SubjectAcoustics ; Audiology & Speech-Language Pathology
WOS IDWOS:000270778600039
WOS KeywordTREEFROG HYLA-EBRACCATA ; MALE CALLING BEHAVIOR ; NEOTROPICAL TREEFROG ; FEMALE CHOICE ; ACOUSTIC INTERFERENCE ; AMERICAN ALLIGATOR ; SEXUAL SELECTION ; MATING SUCCESS ; COMMUNICATION ; EVOLUTION
Funding OrganizationNational Basic Research Program of China [2007CB411600]; National Natural Science Foundation of China [30730018] ; National Basic Research Program of China [2007CB411600]; National Natural Science Foundation of China [30730018] ; National Basic Research Program of China [2007CB411600]; National Natural Science Foundation of China [30730018] ; National Basic Research Program of China [2007CB411600]; National Natural Science Foundation of China [30730018]
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/7546
Collection期刊论文
Corresponding AuthorWang, D, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.Anhui Res Ctr Chinese Alligator Reprod, Xuancheng 242034, Peoples R China
4.Anhui Normal Univ, Coll Life Sci, Wuhu 241000, Peoples R China
Recommended Citation
GB/T 7714
Wang, Xianyan,Wang, Ding,Zhang, Song,et al. Why do Chinese alligators (Alligator sinensis) form bellowing choruses: A playback approach[J]. JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA,2009,126(4):2082-2087.
APA Wang, Xianyan.,Wang, Ding.,Zhang, Song.,Wang, Chaolin.,Wang, Renping.,...&Wang, D, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China.(2009).Why do Chinese alligators (Alligator sinensis) form bellowing choruses: A playback approach.JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA,126(4),2082-2087.
MLA Wang, Xianyan,et al."Why do Chinese alligators (Alligator sinensis) form bellowing choruses: A playback approach".JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 126.4(2009):2082-2087.
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