An unknown component of a well-known population: socio-demographic parameters of Indo-Pacific humpback dolphins (Sousa chinensis) at the western reaches of the Pearl River Delta region | |
Chan, Stephen C. Y.5,6; Karczmarski, Leszek5,6; Lin, Wenzhi2,4,8; Zheng, Ruiqiang8; Ho, Yuen-Wa5,6,7; Guo, Lang8; Mo, Yaqian8; Lee, Andy T. L.1,6; Or, Carmen K. M.3,6; Wu, Yuping8 | |
刊名 | MAMMALIAN BIOLOGY |
2023-01-19 | |
卷号 | 1页码:23 |
关键词 | Coastal inshore delphinid Fission-fusion dynamics Heterogeneous social structure Mark-recapture analyses Population size estimate Survival estimate Sousa chinensis Southeast China |
ISSN号 | 1616-5047 |
DOI | 10.1007/s42991-022-00335-2 |
通讯作者 | Chan, Stephen C. Y. ; Karczmarski, Leszek ; Lin, Wenzhi |
英文摘要 | Quantifying demographic parameters and patterns of social dynamics is fundamental to understanding the population ecology of group-living animals and carries considerable conservation implications. In the Pearl River Delta (PRD) region, one of the world's largest, most urbanised and industrialised estuarine systems located on the southeast coast of China, Indo-Pacific humpback dolphins are under a multitude of anthropogenic pressures. While in Hong Kong, at the eastern perimeter of the region, these dolphins have been studied for many years, at the western reaches of the PRD they have received little research and conservation attention. In this study, with the application of mark-recapture and socio-demographic modelling techniques, we quantify population parameters, group dynamics and social structure, establishing socio-demographic baselines for this little known component of the longest-studied population of the genus Sousa. These dolphins live in a fluid fission-fusion society with markedly weak inter-individual affiliations. Individual ranging patterns and spatial preferences (e.g., foraging areas) appear to be among the key factors determining their grouping pattern and socio-spatial structure across the region, with several social clusters which, although discernible, especially at the peripheries of the region, frequently interact socially and overlap spatially. Currently, 914 dolphins inhabit waters of western PRD, but their estimated survival rates are below the previously estimated threshold needed for long-term survival as a viable demographic unit. These findings indicate high levels of environmental stress and raise conservation concerns, especially in the face of manifold and growing anthropogenic pressure. This study calls for comprehensive assessments of cumulative anthropogenic impacts and for a critical revision of present conservation measures. |
资助项目 | Marine Ecology Enhancement Fund (MEEF)[MEEF2017015] ; Marine Ecology Enhancement Fund (MEEF)[MEEF2017015A] ; Marine Ecology Enhancement Fund (MEEF)[MEEF2017015B] ; Ocean Park Conservation Foundation Hong Kong (OPCFHK)[CWD1_1415] ; General Research Fund (GRF) of the Research Grants Council (RGC) of Hong Kong[HKU 17100015M] ; National Natural Science Foundation of China[41576128] ; Natural Science Foundation of Guangdong Province, China[2017A030308005] ; Natural Science Foundation of Guangdong Province, China[2018A030313870] ; One Belt and One Road Science and Technology Cooperation Special Program of the International Partnership Program of Chinese Academy of Sciences[183446KYSB20200016] ; Hong Kong Airport Authority (AAHK) ; Hong Kong Airport Authority (AAHK) ; Hong Kong Airport Authority (AAHK) |
WOS关键词 | BOTTLE-NOSED DOLPHINS ; TURSIOPS-TRUNCATUS ; SOCIAL-STRUCTURE ; HONG-KONG ; COMMUNITY STRUCTURE ; AUSTRALIAN SNUBFIN ; ALGOA BAY ; ESTUARY ; SURVIVAL ; DYNAMICS |
WOS研究方向 | Zoology |
语种 | 英语 |
出版者 | SPRINGER HEIDELBERG |
WOS记录号 | WOS:000916173500001 |
资助机构 | Marine Ecology Enhancement Fund (MEEF) ; Ocean Park Conservation Foundation Hong Kong (OPCFHK) ; General Research Fund (GRF) of the Research Grants Council (RGC) of Hong Kong ; National Natural Science Foundation of China ; Natural Science Foundation of Guangdong Province, China ; One Belt and One Road Science and Technology Cooperation Special Program of the International Partnership Program of Chinese Academy of Sciences ; Hong Kong Airport Authority (AAHK) ; Hong Kong Airport Authority (AAHK) ; Hong Kong Airport Authority (AAHK) |
内容类型 | 期刊论文 |
版本 | 出版稿 |
源URL | [http://ir.idsse.ac.cn/handle/183446/10082] |
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 | Chan, Stephen C. Y.; Karczmarski, Leszek; Lin, Wenzhi |
作者单位 | 1.RESOLVE, Biodivers Conservat, Washington, DC USA 2.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya, Peoples R China 3.Wetland Res, WWF Hong Kong, Hong Kong, Peoples R China 4.Guangdong Pearl River Estuary Chinse White Dolphin, Zhuhai, Peoples R China 5.Univ Hong Kong, Sch Biol Sci, Pokfulam, Hong Kong, Peoples R China 6.Cetacea Res Inst, Div Cetacean Ecol, Hong Kong, Lantau, Peoples R China 7.Hong Kong Polytech Univ, Dept Appl Biol, Hung Hom, Hong Kong, Peoples R China 8.Sun Yat Sen Univ, Sch Marine Sci, Guangzhou, Peoples R China |
推荐引用方式 GB/T 7714 | Chan, Stephen C. Y.,Karczmarski, Leszek,Lin, Wenzhi,et al. An unknown component of a well-known population: socio-demographic parameters of Indo-Pacific humpback dolphins (Sousa chinensis) at the western reaches of the Pearl River Delta region[J]. MAMMALIAN BIOLOGY,2023,1:23. |
APA | Chan, Stephen C. Y..,Karczmarski, Leszek.,Lin, Wenzhi.,Zheng, Ruiqiang.,Ho, Yuen-Wa.,...&Wu, Yuping.(2023).An unknown component of a well-known population: socio-demographic parameters of Indo-Pacific humpback dolphins (Sousa chinensis) at the western reaches of the Pearl River Delta region.MAMMALIAN BIOLOGY,1,23. |
MLA | Chan, Stephen C. Y.,et al."An unknown component of a well-known population: socio-demographic parameters of Indo-Pacific humpback dolphins (Sousa chinensis) at the western reaches of the Pearl River Delta region".MAMMALIAN BIOLOGY 1(2023):23. |
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