Food risk trade-off in the Indo-Pacific humpback dolphin: An exploratory case study
Lin, Mingli1,2; Caruso, Francesco1; Liu, Mingming1,3; Lek, Sovan2; Li, Kuan1,3; Gozlan, Rodolphe E.4; Li, Songhai1,5,6
2020-01-23
Source PublicationAQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS
ISSN1052-7613
Volume1Issue:1Pages:8
Abstract

Based on optimal foraging theory, animals are expected to maximize foraging benefits whilst minimizing risks. Despite risking being subjected to anthropogenic impacts such as water contamination, marine traffic, and underwater noise, estuaries have been identified as the preferred habitat of the Indo-Pacific humpback dolphin (Sousa chinensis, IPHD). However, it remains unclear why this vulnerable species favours such risky habitats. Here, an exploratory case study in Zhanjiang estuary, China, was conducted to test the hypothesis that IPHDs select estuarine habitats as a trade-off that maximizes foraging opportunities whilst minimizing the risk of mortality. The results showed that IPHDs accept greater mortality risks for higher food rewards but select habitats with lower risks when food rewards are similar between two locations. Although this type of information is important for underpinning models for individual dolphins, its principal role is to show environmental protection agencies why IPHDs favour estuaries despite the increased mortality risks. Habitat conservation plans should carefully consider prey stocks, possibly through the presence of marine protected areas near estuaries, as local overfishing may lead vulnerable cetacean populations to take greater risks.

Keywordcoastal waters endangered species estuary human disturbance marine mammals marine traffic over-fishing
DOI10.1002/aqc.3280
Indexed BySCI
Funding OrganizationOcean Park Conservation Foundation Hong Kong ; Major Science and Technology Project in Hainan Province ; Ministry of Ecology and Environment of China ; Knowledge Innovation Programme of the Chinese Academy of Sciences ; 'Hundred Talents Programme' of the Chinese Academy of Sciences ; National Natural Science Foundation of China
Language英语
Funding ProjectOcean Park Conservation Foundation Hong Kong[AW02-1920] ; Ocean Park Conservation Foundation Hong Kong[MM02-1516] ; Major Science and Technology Project in Hainan Province[ZDKJ2016009-1-1] ; Ministry of Ecology and Environment of China[2019-2023] ; Knowledge Innovation Programme of the Chinese Academy of Sciences[SIDSSE-316 201210] ; 'Hundred Talents Programme' of the Chinese Academy of Sciences[Y410012] ; 'Hundred Talents Programme' of the Chinese Academy of Sciences[SIDSSE-BR-315 201201] ; National Natural Science Foundation of China[41422604] ; National Natural Science Foundation of China[41306169] ; National Natural Science Foundation of China[41406182]
WOS KeywordPEARL RIVER ESTUARY ; SOUSA-CHINENSIS ; PREDATION RISK ; HABITAT USE ; HONG-KONG ; POPULATION ; IMPACT ; EUTROPHICATION ; DISTURBANCE ; SELECTION
WOS Research AreaEnvironmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
WOS SubjectEnvironmental Sciences ; Marine & Freshwater Biology ; Water Resources
WOS IDWOS:000508641000001
PublisherWILEY
Citation statistics
Document Type期刊论文
Version出版稿
Identifierhttp://ir.idsse.ac.cn/handle/183446/7402
Collection深海科学研究部_海洋哺乳动物与海洋生物声学研究室
Corresponding AuthorLi, Songhai
Affiliation1.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Marine Mammal & Marine Bioacoust Lab, Sanya, Hainan, Peoples R China
2.Univ Paul Sabatier, CNRS, UMR 5174 EDB, Toulouse, France
3.Univ Chinese Acad Sci, Beijing, Peoples R China
4.Univ Montpellier, CNRS, IRD, EPHE,ISEM, Montpellier, France
5.Qingdao Natl Lab Marine Sci & Technol, Funct Lab Marine Fisheries Sci & Food Prod Proce, Qingdao, Shandong, Peoples R China
6.Natl Univ Singapore, Trop Marine Sci Inst, Singapore, Singapore
Recommended Citation
GB/T 7714
Lin, Mingli,Caruso, Francesco,Liu, Mingming,et al. Food risk trade-off in the Indo-Pacific humpback dolphin: An exploratory case study[J]. AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS,2020,1(1):8.
APA Lin, Mingli.,Caruso, Francesco.,Liu, Mingming.,Lek, Sovan.,Li, Kuan.,...&Li, Songhai.(2020).Food risk trade-off in the Indo-Pacific humpback dolphin: An exploratory case study.AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS,1(1),8.
MLA Lin, Mingli,et al."Food risk trade-off in the Indo-Pacific humpback dolphin: An exploratory case study".AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS 1.1(2020):8.
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