Spatiotemporal variations in fine-scale habitat use of the world's second largest population of humpback dolphins
文献类型:期刊论文
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作者 | Liu, Mingming1,2,3![]() ![]() ![]() ![]() ![]() |
刊名 | JOURNAL OF MAMMALOGY
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出版日期 | 2021-04-01 ; 2021-04-01 |
卷号 | 102期号:2页码:384-395 |
关键词 | coastal habitats coastal habitats habitat use humpback dolphins movements season shallow water tide Zhanjiang habitat use humpback dolphins movements season shallow water tide Zhanjiang |
ISSN号 | 0022-2372 ; 0022-2372 |
DOI | 10.1093/jmammal/gyab001 ; 10.1093/jmammal/gyab001 |
通讯作者 | Li, Songhai |
英文摘要 | We assessed habitat use by the population of Indo-Pacific humpback dolphin, Sousa chinensis, in the waters off Zhanjiang, China, by performing boat-based surveys between 2013 and 2018. In total, we gathered 253 sightings of humpback dolphins. To assess habitat use of humpback dolphins within the study area, we measured two spatial metrics at each sighting site: WDT (tide-calibrated water-depth) and DS (distance to the nearest shore). Results showed that dolphins mainly were observed in shallow (WDT: 8.46 +/- 5.13 m, mean +/- SD) and inshore (DS: 2.17 +/- 2.14 km) waters. Their preference of inhabiting shallow waters was more apparent during the wet season (April-September) than during the dry season (October-March); however, they were encountered in waters much closer to shore during the dry season than the wet season. By weighting survey effort, our sighting density maps further confirmed that humpback dolphins changed their habitat use between wet and dry seasons. Such spatiotemporal variations in dolphin habitat use might be associated with spatiotemporal movements of their prey. Our findings provide insights into variations in fine-scale habitat use of inshore apex predators, and also assist to designate proper conservation measures for these vulnerable animals.; We assessed habitat use by the population of Indo-Pacific humpback dolphin, Sousa chinensis, in the waters off Zhanjiang, China, by performing boat-based surveys between 2013 and 2018. In total, we gathered 253 sightings of humpback dolphins. To assess habitat use of humpback dolphins within the study area, we measured two spatial metrics at each sighting site: WDT (tide-calibrated water-depth) and DS (distance to the nearest shore). Results showed that dolphins mainly were observed in shallow (WDT: 8.46 +/- 5.13 m, mean +/- SD) and inshore (DS: 2.17 +/- 2.14 km) waters. Their preference of inhabiting shallow waters was more apparent during the wet season (April-September) than during the dry season (October-March); however, they were encountered in waters much closer to shore during the dry season than the wet season. By weighting survey effort, our sighting density maps further confirmed that humpback dolphins changed their habitat use between wet and dry seasons. Such spatiotemporal variations in dolphin habitat use might be associated with spatiotemporal movements of their prey. Our findings provide insights into variations in fine-scale habitat use of inshore apex predators, and also assist to designate proper conservation measures for these vulnerable animals. |
WOS关键词 | BOTTLE-NOSED DOLPHINS ; BOTTLE-NOSED DOLPHINS ; PEARL RIVER ESTUARY ; SOUSA-CHINENSIS ; TURSIOPS-TRUNCATUS ; SEASONAL-CHANGES ; BAY ; PATTERNS ; CONSERVATION ; PREFERENCES ; DELPHINIDAE ; PEARL RIVER ESTUARY ; SOUSA-CHINENSIS ; TURSIOPS-TRUNCATUS ; SEASONAL-CHANGES ; BAY ; PATTERNS ; CONSERVATION ; PREFERENCES ; DELPHINIDAE |
资助项目 | National Natural Science Foundation of China[41422604] ; National Natural Science Foundation of China[41422604] ; National Natural Science Foundation of China[41306169] ; National Natural Science Foundation of China[41406182] ; Ministry of Ecology and Environment of China ; Indian Ocean Ninety-east Ridge Ecosystem and Marine Environment Monitoring and Protection - China Ocean Mineral Resources RD Association[DY135-E2-4] ; Ocean Park Conservation Foundation of Hong Kong[MM03-1415] ; Ocean Park Conservation Foundation of Hong Kong[MM02-1516] ; China-UK Newton Fund Ph.D. Placement from the China Scholarship Council ; British Council ; National Natural Science Foundation of China[41306169] ; National Natural Science Foundation of China[41406182] ; Ministry of Ecology and Environment of China ; Indian Ocean Ninety-east Ridge Ecosystem and Marine Environment Monitoring and Protection - China Ocean Mineral Resources RD Association[DY135-E2-4] ; Ocean Park Conservation Foundation of Hong Kong[MM03-1415] ; Ocean Park Conservation Foundation of Hong Kong[MM02-1516] ; China-UK Newton Fund Ph.D. Placement from the China Scholarship Council ; British Council |
WOS研究方向 | Zoology ; Zoology |
语种 | 英语 ; 英语 |
WOS记录号 | WOS:000671011700004 ; WOS:000671011700004 |
出版者 | OXFORD UNIV PRESS INC ; OXFORD UNIV PRESS INC |
资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; Ministry of Ecology and Environment of China ; Indian Ocean Ninety-east Ridge Ecosystem and Marine Environment Monitoring and Protection - China Ocean Mineral Resources RD Association ; Ocean Park Conservation Foundation of Hong Kong ; China-UK Newton Fund Ph.D. Placement from the China Scholarship Council ; British Council ; Ministry of Ecology and Environment of China ; Indian Ocean Ninety-east Ridge Ecosystem and Marine Environment Monitoring and Protection - China Ocean Mineral Resources RD Association ; Ocean Park Conservation Foundation of Hong Kong ; China-UK Newton Fund Ph.D. Placement from the China Scholarship Council ; British Council |
版本 | 出版稿 |
源URL | [http://ir.idsse.ac.cn/handle/183446/8751] ![]() |
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 | Li, Songhai |
作者单位 | 1.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Marine Mammal & Marine Bioacoust Lab, Sanya 572000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Aberdeen, Sch Biol Sci, Aberdeen AB24 2TZ, Scotland 4.Natl Univ Singapore, Trop Marine Sci Inst, Singapore 119227, Singapore |
推荐引用方式 GB/T 7714 | Liu, Mingming,Lin, Mingli,Dong, Lijun,et al. Spatiotemporal variations in fine-scale habitat use of the world's second largest population of humpback dolphins, Spatiotemporal variations in fine-scale habitat use of the world's second largest population of humpback dolphins[J]. JOURNAL OF MAMMALOGY, JOURNAL OF MAMMALOGY,2021, 2021,102, 102(2):384-395, 384-395. |
APA | Liu, Mingming,Lin, Mingli,Dong, Lijun,Zhang, Peijun,&Li, Songhai.(2021).Spatiotemporal variations in fine-scale habitat use of the world's second largest population of humpback dolphins.JOURNAL OF MAMMALOGY,102(2),384-395. |
MLA | Liu, Mingming,et al."Spatiotemporal variations in fine-scale habitat use of the world's second largest population of humpback dolphins".JOURNAL OF MAMMALOGY 102.2(2021):384-395. |
入库方式: OAI收割
来源:深海科学与工程研究所
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