Ranging pattern development of a declining delphinid population: A potential cascade effect of vessel activities
文献类型:期刊论文
作者 | Lin, Wenzhi1; Zheng, Ruiqiang2,3; Liu, Binshuai1,4; Chen, Shenglan1,4; Lin, Mingli1; Serres, Agathe1; Liu, Mingming1; Liu, Wenhua2; Li, Songhai1 |
刊名 | Journal of Environmental Management |
出版日期 | 2023-03-15 |
卷号 | 330页码:117120 |
DOI | 10.1016/j.jenvman.2022.117120. |
通讯作者 | Liu, Wenhua ; Li, Songhai |
目次 | 否 |
英文摘要 | It is generally accepted that vessel activity causes various behavioral responses of cetaceans and undermines individual fitness. Whether or how it can lead to a demographic response of populations remains rarely exam ined. In the northern Beibu Gulf, China, vessel activities have sharply increased in the past two decades, while abnormal demographic dynamics was recently noted for the resident Indo-Pacific humpback dolphins. The present study first examined the humpback dolphins’ utilization distribution (UD) from 2003 to 2019. Habitat suitability was then modeled with the sighting data collected before the most recent population reduction. Finally, we tried to disentangle the anthropogenic driver of dolphin demography by cross-referring the spatio temporal development of dolphins’ UD, vessel activities, and habitat suitability. Our results showed that the dolphins’ UD shrank substantially during the port expansion in the early 2010s, and we suggest that the consequential increase in vessel activities might impose extra marine stressors on the resident humpback dol phins. To reduce the boat interaction, the dolphins steadily shifted their core area to a less suitable area in the east during 2015–2017, when unnaturally low survivals were recorded. Afterward, the dolphin core area partially shifted back to the more suitable area in the west, which corresponded to the improving dolphin sur vival in 2018. Our finding suggested that the vessel activity may be responsible for the dolphin displacement, while staying in the less suitable area may further lead to a more severe and acute demographic consequence on the population. The underlying and indirect impact of vessel activities as disclosed by the present study is particularly important for port management, marine planning, and conservation practice regarding coastal ce taceans, especially for those resident and endangered populations inhabiting the urbanized coastal areas. |
语种 | 英语 |
版本 | 出版稿 |
源URL | [http://ir.idsse.ac.cn/handle/183446/10094] |
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 | Liu, Wenhua; Li, Songhai |
作者单位 | 1.Marine Mammal and Marine Bioacoustics Laboratory, Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya, 572000, China 2.Guangdong Provincial Key Laboratory of Marine Biotechnology, Institute of Marine Sciences, Shantou University, Shantou, 515063, China 3.China Blue Sustainability Institute, Haikou, Hainan, 570208, China 4.University of Chinese Academy of Sciences, Beijing, 100190, China |
推荐引用方式 GB/T 7714 | Lin, Wenzhi,Zheng, Ruiqiang,Liu, Binshuai,et al. Ranging pattern development of a declining delphinid population: A potential cascade effect of vessel activities[J]. Journal of Environmental Management,2023,330:117120. |
APA | Lin, Wenzhi.,Zheng, Ruiqiang.,Liu, Binshuai.,Chen, Shenglan.,Lin, Mingli.,...&Li, Songhai.(2023).Ranging pattern development of a declining delphinid population: A potential cascade effect of vessel activities.Journal of Environmental Management,330,117120. |
MLA | Lin, Wenzhi,et al."Ranging pattern development of a declining delphinid population: A potential cascade effect of vessel activities".Journal of Environmental Management 330(2023):117120. |
入库方式: OAI收割
来源:深海科学与工程研究所
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