中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Group Size of Indo-Pacific Humpback Dolphins (Sousa chinensis): An Examination of Methodological and Biogeographical Variances

文献类型:期刊论文

作者Liu, Mingming; Lin, Mingli; Tang, Xiaoming; Dong, Lijun; Zhang, Peijun; Lusseau, David; Li, Songhai
刊名Frontiers in Marine Science
出版日期2021-09-17
卷号8页码:12
关键词humpback dolphins group size observer-based counts photo-identification methodology biogeography
DOI10.3389/fmars.2021.655595
通讯作者Li, Songhai
英文摘要

Observer-based counts and photo-identification are two well-established methods with an extensive use in cetacean studies. Using these two methods, group size has been widely reported, especially for small dolphins. Both methods may come with potential errors in estimating the group size, yet there is still a lack of comparison between both methods over a broad range of group size. Particularly, biogeographical variances
in group size estimates were often mixed with methodological variances, making it difficult to compare estimates from different geographic regions. Here, group size estimates of a small, shallow-water, and near -shore delphinid species, Indo-Pacific humpback dolphins (Sousa chinensis), were simultaneously sampled using observerbased counts and photo-identification at three regions in the northern South China Sea. Data showed that dolphin group size from two methods were highly variable and associated with sampling regions. Generalized linear mixed models (GLMMs) indicated that dolphin group size significantly differed among regions. Statistical examinations further demonstrated dolphin group size could be affected by a complex combination of methodological and biogeographical variances. A common hurdle to examine potential factors influencing the estimation process is the inability to know the true group size at each sample. Therefore, other methods that could generate comparable estimates to represent true group size are warranted in future studies. To conclude, our findings
present a better understanding of methodological and biogeographical variances in group size estimates of humpback dolphins, and help yield more robust abundance and density estimation for these vulnerable animals.

WOS关键词NORTHERN BEIBU GULF ; ALGOA BAY ; CONSERVATION STATUS ; TURSIOPS-ADUNCUS ; HAINAN ISLAND ; SITE FIDELITY ; ABUNDANCE ; COASTAL ; IDENTIFICATION ; POPULATION
资助项目National Natural Science Foundation of China[41406182] ; National Natural Science Foundation of China[41306169] ; National Natural Science Foundation of China[41422604] ; Biodiversity Investigation, Observation and Assessment Program of Ministry of Ecology and Environment of China[2019-2023] ; Ocean Park Conservation Foundation of Hong Kong[MM02-1516] ; Ocean Park Conservation Foundation of Hong Kong[AW02-1920] ; China Scholarship Council ; British Council
WOS研究方向Environmental Sciences & Ecology ; Marine & Freshwater Biology
语种英语
WOS记录号WOS:000717324900001
出版者FRONTIERS MEDIA SA
资助机构National Natural Science Foundation of China ; Biodiversity Investigation, Observation and Assessment Program of Ministry of Ecology and Environment of China ; Ocean Park Conservation Foundation of Hong Kong ; China Scholarship Council ; British Council
版本出版稿
源URL[http://ir.idsse.ac.cn/handle/183446/9059]  
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.University of Chinese Academy of Sciences, Beijing, China
2.Marine Mammal and Marine Bioacoustics Laboratory, Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya, China
3.School of Biological Sciences, University of Aberdeen, Aberdeen, United Kingdom
4.Tropical Marine Science Institute, National University of Singapore, Singapore, Singapore
5.National Institute of Aquatic Resources, Technical University of Denmark, Lyngby, Denmark
推荐引用方式
GB/T 7714
Liu, Mingming,Lin, Mingli,Tang, Xiaoming,et al. Group Size of Indo-Pacific Humpback Dolphins (Sousa chinensis): An Examination of Methodological and Biogeographical Variances[J]. Frontiers in Marine Science,2021,8:12.
APA Liu, Mingming.,Lin, Mingli.,Tang, Xiaoming.,Dong, Lijun.,Zhang, Peijun.,...&Li, Songhai.(2021).Group Size of Indo-Pacific Humpback Dolphins (Sousa chinensis): An Examination of Methodological and Biogeographical Variances.Frontiers in Marine Science,8,12.
MLA Liu, Mingming,et al."Group Size of Indo-Pacific Humpback Dolphins (Sousa chinensis): An Examination of Methodological and Biogeographical Variances".Frontiers in Marine Science 8(2021):12.

入库方式: OAI收割

来源:深海科学与工程研究所

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