Dear Colleagues,
On behalf of my co-authors, I am very pleased to share our recent
publication about “Potential signature whistle production by Indo-Pacific
humpback dolphins, Sousa chinensis, in the northern South China Sea“ in Animal
Behaviour.
Abstract:
Dolphin communication involves acoustic signals, including whistles, and the
well-studied bottlenose dolphins produce individually distinctive whistles
called signature whistles (SWs). The production of a potential SW by an injured
Indo-Pacific humpback dolphin has been reported, but no study has attempted to
validate this finding in this species. Using data collected during encounters
with free-ranging Indo-Pacific humpback dolphins at two locations in the
northern South China Sea, we investigated the production of SWs by these
dolphins. Of the 3846 analysed whistles, 37% were identified as potential SWs
(PSWs) using the SIGnature whistle IDentification method and categorized into
82 PSW types. Overall, PSWs were identified during 54% of encounters. Given the
high production rate of stereotyped whistles (62% of all whistles in 90% of
encounters) compared with the identified PSWs, we suggest that the SIGnature
whistle IDentification method criteria cannot be fully adapted for the
detection of SWs in Indo-Pacific humpback dolphins, and more research should be
conducted to adapt the criteria to the species. In addition, the
characteristics of PSWs differed slightly between locations, potentially
because of the geographical separation of populations and habitat differences
(e.g. noise levels). The present results confirm the production of stereotyped
whistles, including PSWs, by Indo-Pacific humpback dolphins. Further research
should be conducted to confirm whether these whistles are similar to bottlenose
dolphins’ SWs.
The article is freely accessible via this link:
https://kwnsfk27.r.eu-west-1.awstrack.me/L0/https:%2F%2Fauthors.elsevier.com%2Fc%2F1k1OOmjM6G3T/1/01020192e955d2b8-b0d365e0-111f-46d9-83d2-f556d4dc4b6c-000000/4fm1TzsWKFnYCZw8fQ6CCRSdNJA=398
For any queries, please feel free to contact me at
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Best Regards
Songhai
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Songhai Li Ph.D. & Prof.
Marine Mammal and Marine Bioacoustics Laboratory
Institute of Deep-sea Science and Engineering
Chinese Academy of Sciences
28 Luhuitou Road, Sanya, 572000, China
Phone: +86-898-88222393
Email: <>
http://www.idsse.cas.cn/yjsgk2015/zzjg2015/yftx2015/shkxyjb2015/hybrdwyhyswsxyjz2015/
http://www.cetacean.csdb.cn/
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