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Response Specificity to Advertisement Vocalization in the Chinese Alligator (Alligator sinensis)
Wang, Xianyan1,2; Wang, Ding1; Wu, Xiaobing3; Wang, Chaolin4; Wang, Renping4; Xia, Tongsheng4; Wang, D, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2009-09-01
Source PublicationETHOLOGY
ISSN0179-1613
Volume115Issue:9Pages:832-839
AbstractStringency in the identification of conspecific call properties is essential among sympatric species to ensure conspecific mating, as the risk of improper recognition and heterospecific mating is high. In this study we investigated the basic signal structure required for intraspecies communication in the Chinese alligator (Alligator sinensis), a species that has no relatives living in sympatry, by playback of signals modified in the temporal (truncating original bellows with first 1/4, 1/2, 3/4 or last 1/4, 1/2, 3/4 portion) or frequency domain (with low- or high-pass filters at frequencies 100, 250, 500 and 1000 Hz), or by reversal of natural bellows. The playback experiments revealed that relatively large modifications in bellow temporal or frequency structure failed to impair Chinese alligators' bellowing behavior; even reversed bellows effectively evoked a positive response. In general, the first half of the bellow in temporal domain and frequencies below 500 Hz were critical for behavioral induction, while the last half of the bellow in temporal domain and frequencies above 500 Hz failed to produce a single positive response, implying a potential functional signal redundancy. The observed high tolerance to bellow variations in Chinese alligators may be an evolutionary adaptation to (1) the acoustic constraints of propagation imposed by dense vegetative habitats; or (2) a lack of selection pressure due to the low risk of incorrect conspecific recognition and heterospecific mating.; Stringency in the identification of conspecific call properties is essential among sympatric species to ensure conspecific mating, as the risk of improper recognition and heterospecific mating is high. In this study we investigated the basic signal structure required for intraspecies communication in the Chinese alligator (Alligator sinensis), a species that has no relatives living in sympatry, by playback of signals modified in the temporal (truncating original bellows with first 1/4, 1/2, 3/4 or last 1/4, 1/2, 3/4 portion) or frequency domain (with low- or high-pass filters at frequencies 100, 250, 500 and 1000 Hz), or by reversal of natural bellows. The playback experiments revealed that relatively large modifications in bellow temporal or frequency structure failed to impair Chinese alligators' bellowing behavior; even reversed bellows effectively evoked a positive response. In general, the first half of the bellow in temporal domain and frequencies below 500 Hz were critical for behavioral induction, while the last half of the bellow in temporal domain and frequencies above 500 Hz failed to produce a single positive response, implying a potential functional signal redundancy. The observed high tolerance to bellow variations in Chinese alligators may be an evolutionary adaptation to (1) the acoustic constraints of propagation imposed by dense vegetative habitats; or (2) a lack of selection pressure due to the low risk of incorrect conspecific recognition and heterospecific mating.
SubtypeArticle
KeywordSexual Selection Character Displacement Hyla-ebraccata Mate-quality Communication Recognition Frogs Evolution Cinerea Choice
Department[Wang, Xianyan; Wang, Ding] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; [Wang, Xianyan] Chinese Acad Sci, Grad Sch, Beijing, Peoples R China; [Wu, Xiaobing] Anhui Normal Univ, Coll Life Sci, Wuhu, Peoples R China; [Wang, Chaolin; Wang, Renping; Xia, Tongsheng] Anhui Res Ctr Chinese Alligator Reprod, Xuancheng, Peoples R China
Subject AreaPsychology, Biological ; Behavioral Sciences ; Zoology
DOI10.1111/j.1439-0310.2009.01671.x
WOS HeadingsSocial Sciences ; Science & 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 AreaPsychology ; Behavioral Sciences ; Zoology
WOS SubjectPsychology, Biological ; Behavioral Sciences ; Zoology
WOS IDWOS:000268925400004
WOS KeywordSEXUAL SELECTION ; CHARACTER DISPLACEMENT ; HYLA-EBRACCATA ; MATE-QUALITY ; COMMUNICATION ; RECOGNITION ; FROGS ; EVOLUTION ; CINEREA ; CHOICE
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]
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Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/7624
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, Peoples R China
3.Anhui Normal Univ, Coll Life Sci, Wuhu, Peoples R China
4.Anhui Res Ctr Chinese Alligator Reprod, Xuancheng, Peoples R China
Recommended Citation
GB/T 7714
Wang, Xianyan,Wang, Ding,Wu, Xiaobing,et al. Response Specificity to Advertisement Vocalization in the Chinese Alligator (Alligator sinensis)[J]. ETHOLOGY,2009,115(9):832-839.
APA Wang, Xianyan.,Wang, Ding.,Wu, Xiaobing.,Wang, Chaolin.,Wang, Renping.,...&Wang, D, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China.(2009).Response Specificity to Advertisement Vocalization in the Chinese Alligator (Alligator sinensis).ETHOLOGY,115(9),832-839.
MLA Wang, Xianyan,et al."Response Specificity to Advertisement Vocalization in the Chinese Alligator (Alligator sinensis)".ETHOLOGY 115.9(2009):832-839.
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