Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China; Anhui Normal Univ, Coll Life Sci, Wuhu 241000, Peoples R China; Anhui Res Ctr Chinese Alligator Reprod, Xuancheng 242034, Peoples R China
WOS标题词:
Science & Technology
; Technology
; Life Sciences & Biomedicine
类目[WOS]:
Acoustics
; Audiology & Speech-Language Pathology
研究领域[WOS]:
Acoustics
; Audiology & Speech-Language Pathology
摘要:
This paper reports the first systematic study of acoustic signals during social interactions of the Chinese alligator (Alligator sinensis). Sound pressure level (SPL) measurements revealed that Chinese alligators have an elaborate acoustic communication system with both long-distance signal-bellowing-and short-distance signals that include tooting, bubble blowing, hissing, mooing, head slapping and whining. Bellows have high SPL and appear to play an important role in the alligator's long range intercommunion. Sounds characterized by low SPL are short-distance signals used when alligators are in close spatial proximity to one another. The signal spectrographic analysis showed that the acoustic signals of Chinese alligators have a very low dominant frequency, less than 500 Hz. These frequencies are consistent with adaptation to a habitat with high density vegetation. Low dominant frequency sound attenuates less and could therefore cover a larger spatial range by diffraction in a densely vegetated environment relative to a higher dominant frequency sound. (C) 2007 Acoustical Society of America.
英文摘要:
This paper reports the first systematic study of acoustic signals during social interactions of the Chinese alligator (Alligator sinensis). Sound pressure level (SPL) measurements revealed that Chinese alligators have an elaborate acoustic communication system with both long-distance signal-bellowing-and short-distance signals that include tooting, bubble blowing, hissing, mooing, head slapping and whining. Bellows have high SPL and appear to play an important role in the alligator's long range intercommunion. Sounds characterized by low SPL are short-distance signals used when alligators are in close spatial proximity to one another. The signal spectrographic analysis showed that the acoustic signals of Chinese alligators have a very low dominant frequency, less than 500 Hz. These frequencies are consistent with adaptation to a habitat with high density vegetation. Low dominant frequency sound attenuates less and could therefore cover a larger spatial range by diffraction in a densely vegetated environment relative to a higher dominant frequency sound. (C) 2007 Acoustical Society of America.
关键词[WOS]:
LIFETIME MATING SUCCESS
; SEXUAL SELECTION
; CROCODILIANS
; VOCALIZATION
; BEHAVIOR
; SONG
1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Anhui Normal Univ, Coll Life Sci, Wuhu 241000, Peoples R China 4.Anhui Res Ctr Chinese Alligator Reprod, Xuancheng 242034, Peoples R China
Recommended Citation:
Wang, Xianyan; Wang, Ding; Wu, Xiaobing; Wang, Renping; Wang, Chaolin.Acoustic signals of Chinese alligators (Alligator sinensis): Social communication,JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA,2007,121(5):2984-2989
