Season, age, sex, and location impact the density of tooth rake mark and dorsal fin notch of Indo-Pacific humpback dolphins (Sousa chinensis) in the northern South China Sea

doi:10.1111/mms.12986

CORC > 深海科学与工程研究所 > 中国科学院深海科学与工程研究所 > 深海科学研究部 > 深海生物学研究室 > 海洋哺乳动物与海洋生物声学研究组

	Season, age, sex, and location impact the density of tooth rake mark and dorsal fin notch of Indo-Pacific humpback dolphins (Sousa chinensis) in the northern South China Sea
	Agathe Serres 2; Wenzhi Lin 2; Binshuai Liu 1,2; Mingli Lin 2; Mingming Liu 2; Shenglan Chen 1,2; Songhai Li 2
刊名	Marine Mammal Science
	2022-11
卷号	-期号:-页码:1-23
关键词	aggressive behavior agonistic interaction competition mating strategy scarring sex differentiation social behavior social organization
ISSN号	0824-0469
DOI	10.1111/mms.12986
通讯作者	Songhai Li
英文摘要	Tooth rake marks are usually used as an indicator of received aggression in odontocetes whose social interactions are difficult to observe directly. Photographic data from five locations of the northern South China Sea were used to analyze seasonal, demographic, and geographic effects on the density of tooth rake marks and dorsal fin notches in Indo-Pacific humpback dolphins (Sousa chinensis, IPHDs). The analysis revealed that fresh tooth rake marks were most frequent during the dry season. Males exhibited significantly higher rake mark density than females and rake density declined significantly with age. The density of notches was also significantly higher for males than for females, and lower for young dolphins than for mid-aged and adult ones. Geographically, tooth rake mark and notch density were the highest in Sanniang Bay and Southwestern Hainan. These results provide indirect evidence of variation in social interactions across seasons, across the lifespan of an individual, between sexes, and among different locations. This variation may result from changes in biological parameters, differences in social lives, and habitat characteristics. A model to determine the sex of dolphins was tested, and after further validation, such sex assignment could contribute to understanding IPHDs' social structure.
资助项目	National Natural Science Foundation of China[32150410369] ; National Natural Science Foundation of China[41306169] ; National Natural Science Foundation of China[41406182] ; National Natural Science Foundation of China[41422604] ; Natural Science Foundation of Guangdong Province[2018A030313870] ; Ocean Park Conservation Foundation, Hong Kong[AW02-1920] ; Ocean Park Conservation Foundation, Hong Kong[MM02-1516]
WOS关键词	BOTTLE-NOSED DOLPHINS ; PEARL RIVER ESTUARY ; WHALES ORCINUS-ORCA ; SOCIAL-STRUCTURE ; DOMINANCE RELATIONSHIPS ; GEOGRAPHIC-VARIATION ; MONODON-MONOCEROS ; GRAMPUS-GRISEUS ; BEAKED-WHALE ; LIFE-HISTORY
WOS研究方向	Marine & Freshwater Biology ; Zoology
语种	英语
出版者	WILEY
WOS记录号	WOS:000880522600001
资助机构	National Natural Science Foundation of China ; Natural Science Foundation of Guangdong Province ; Ocean Park Conservation Foundation, Hong Kong
内容类型	期刊论文
源URL	[http://ir.idsse.ac.cn/handle/183446/9829]
专题	深海科学研究部_深海生物学研究室_海洋哺乳动物与海洋生物声学研究组
通讯作者	Songhai Li
作者单位	1.University of Chinese Academy of Sciences, 2.Marine Mammal and Marine Bioacoustics Laboratory, Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences
推荐引用方式 GB/T 7714	Agathe Serres,Wenzhi Lin,Binshuai Liu,et al. Season, age, sex, and location impact the density of tooth rake mark and dorsal fin notch of Indo-Pacific humpback dolphins (Sousa chinensis) in the northern South China Sea[J]. Marine Mammal Science,2022,-(-):1-23.
APA	Agathe Serres.,Wenzhi Lin.,Binshuai Liu.,Mingli Lin.,Mingming Liu.,...&Songhai Li.(2022).Season, age, sex, and location impact the density of tooth rake mark and dorsal fin notch of Indo-Pacific humpback dolphins (Sousa chinensis) in the northern South China Sea.Marine Mammal Science,-(-),1-23.
MLA	Agathe Serres,et al."Season, age, sex, and location impact the density of tooth rake mark and dorsal fin notch of Indo-Pacific humpback dolphins (Sousa chinensis) in the northern South China Sea".Marine Mammal Science -.-(2022):1-23.