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题名: Fine-scale habitat use in Indo-Pacific humpback dolphins, Sousa chinensis, may be more influenced by fish rather than vessels in the Pearl River Estuary, China
作者: Pine, Matthew K.1; Wang, Kexiong1; Wang, Ding1
关键词: Indo-Pacific humpback dolphin ; Sousa chinensis ; Chinese white dolphin ; acoustics ; habitat use ; Pearl River Estuary ; anthropogenic noise
刊名: MARINE MAMMAL SCIENCE
发表日期: 2017
DOI: 10.1111/mms.12366
卷: 33, 期:1, 页:291-312
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Marine & Freshwater Biology ; Zoology
研究领域[WOS]: Marine & Freshwater Biology ; Zoology
英文摘要: Shifts in habitat use and distribution patterns in dolphins are often concerns that can result from habitat degradation. We investigated how potential changes to a habitat from human activity may alter dolphin distributions within Lingding Bay in the Pearl River Estuary, China, by studying the relationship between fish choruses, vessel presence and Indo-Pacific humpback dolphin (Sousa chinensis) detection rates. Analyses revealed temporal and spatial variation within fish choruses, vessel presence and dolphin detection rates. After accounting for any temporal autocorrelation, correlations between fish choruses and dolphin detection rates were also found; however, no relationship between fish choruses and vessel presence or dolphin detection rates and vessel presence were observed. Furthermore, fewer dolphins were detected at sites where fish activity was less intense. Thus fish activity, rather than vessels, may be a key factor influencing the distribution of the dolphins within the estuary. These findings emphasize the risk of potential shifts in habitat use for Indo-Pacific humpback dolphins due to detrimental changes to prey availability and dolphin feeding grounds from human activity, such as overfishing and coastal developments, within the estuary. This is a critical conservation issue for this dolphin population that is facing intense anthropogenic pressure.
关键词[WOS]: PORPOISES PHOCOENA-PHOCOENA ; HONG-KONG WATERS ; HARBOR PORPOISES ; FINLESS PORPOISES ; ECHOLOCATION BEHAVIOR ; CONSERVATION STATUS ; LARGEST POPULATION ; ABUNDANCE ; BAY ; SIGNALS
语种: 英语
WOS记录号: WOS:000391037300015
ISSN号: 0824-0469
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/28780
Appears in Collections:水生生物多样性与资源保护研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Key Lab Aquat Biodivers & Conservat, Inst Hydrobiol, 7 Donghu South Rd, Wuhan 430071, Peoples R China
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