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题名: Can local ecological knowledge be used to assess status and extinction drivers in a threatened freshwater cetacean?
作者: Turvey, Samuel T.1; Risley, Claire L.2; Moore, Jeffrey E.3; Barrett, Leigh A.4; Hao Yujiang5; Zhao Xiujiang5, 6; Zhou Kaiya7; Wang Ding5
通讯作者: Turvey, ST (reprint author), Zool Soc London, Inst Zool, Regents Pk, London NW1 4RY, England.
关键词: Fisheries by-catch ; Incidental mortality ; Interview survey ; Mortality index ; Neophocaena ; Yangtze finless porpoise
刊名: BIOLOGICAL CONSERVATION
发表日期: 2013
DOI: 10.1016/j.biocon.2012.07.016
卷: 157, 期:-, 页:352-360
收录类别: SCI
文章类型: Article
部门归属: [Turvey, Samuel T.] Zool Soc London, Inst Zool, London NW1 4RY, England; [Risley, Claire L.] Univ Liverpool, Dept Epidemiol & Populat Hlth, Neston CH64 7TE, Cheshire, England; [Moore, Jeffrey E.] NOAA, Protected Resources Div, SW Fisheries Sci Ctr, Natl Marine Fisheries Serv, La Jolla, CA 92037 USA; [Barrett, Leigh A.] Freshwater Dolphin CIC, Madrid 28043, Spain; [Hao Yujiang; Zhao Xiujiang; Wang Ding] Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Peoples R China; [Zhao Xiujiang] China Three Gorges Corp, Dept Sci Technol & Environm, Yichang 443002, Peoples R China; [Zhou Kaiya] Nanjing Normal Univ, Coll Life Sci, Jiangsu Key Lab Biodivers & Biotechnol, Nanjing 210097, Jiangsu, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: Marine Mammal Commission; Ocean Park Conservation Foundation Hong Kong; People's Trust for Endangered Species; ZSL's EDGE of Existence programme; NERC Postdoctoral Fellowship [NE/D009456/1]; Royal Society University Research Fellowship [UF080320]
类目[WOS]: Biodiversity Conservation ; Ecology ; Environmental Sciences
研究领域[WOS]: Biodiversity & Conservation ; Environmental Sciences & Ecology
摘要: Local ecological knowledge constitutes a potentially useful source of information for conservation, but the quality, limitations and biases of this body of knowledge remain largely untested. The Yangtze finless porpoise (Neophocaena asiaeorientalis asiaeorientalis) is a highly threatened freshwater cetacean found in one of the world's most densely populated human environments. The dynamics of porpoise decline remain poorly understood, and local ecological knowledge from fishing communities across its range may represent an important conservation tool for monitoring porpoise population status and quantifying levels of human-caused mortality. We used interview data from an extensive survey of fishing communities across the middle-lower Yangtze drainage to investigate spatial and temporal patterns of porpoise abundance, mortality and population change. Interview data on porpoise relative abundance and decline, especially weekly sighting frequencies, show congruent spatial patterns with data collected from boat-based Yangtze cetacean surveys, demonstrating that informant data can provide accurate quantitative information on these two key parameters of species conservation status. Interview-based collection of local ecological knowledge therefore represents a useful monitoring method for assessing population trends in freshwater cetaceans and other charismatic or distinctive aquatic species, and may be particularly appropriate in regions where resources for regular boat-based surveys are limited. Using local ecological knowledge to identify primary threats to the porpoise population is less straightforward due to probable biases in interview data on porpoise mortality. However, interview data are able to demonstrate that the number of porpoises killed annually in the Yangtze mainstem may have doubled and that the annual mortality rate may have quadrupled over the past two decades, with mortality due to vessel strikes and other factors having increased more in recent years than by-catch mortality. It seems unlikely that fisheries mortality has been the dominant driver of porpoise decline in the Yangtze mainstem, suggesting that regulating regional fisheries may not be sufficient for porpoise conservation. (C) 2012 Elsevier Ltd. All rights reserved.
英文摘要: Local ecological knowledge constitutes a potentially useful source of information for conservation, but the quality, limitations and biases of this body of knowledge remain largely untested. The Yangtze finless porpoise (Neophocaena asiaeorientalis asiaeorientalis) is a highly threatened freshwater cetacean found in one of the world's most densely populated human environments. The dynamics of porpoise decline remain poorly understood, and local ecological knowledge from fishing communities across its range may represent an important conservation tool for monitoring porpoise population status and quantifying levels of human-caused mortality. We used interview data from an extensive survey of fishing communities across the middle-lower Yangtze drainage to investigate spatial and temporal patterns of porpoise abundance, mortality and population change. Interview data on porpoise relative abundance and decline, especially weekly sighting frequencies, show congruent spatial patterns with data collected from boat-based Yangtze cetacean surveys, demonstrating that informant data can provide accurate quantitative information on these two key parameters of species conservation status. Interview-based collection of local ecological knowledge therefore represents a useful monitoring method for assessing population trends in freshwater cetaceans and other charismatic or distinctive aquatic species, and may be particularly appropriate in regions where resources for regular boat-based surveys are limited. Using local ecological knowledge to identify primary threats to the porpoise population is less straightforward due to probable biases in interview data on porpoise mortality. However, interview data are able to demonstrate that the number of porpoises killed annually in the Yangtze mainstem may have doubled and that the annual mortality rate may have quadrupled over the past two decades, with mortality due to vessel strikes and other factors having increased more in recent years than by-catch mortality. It seems unlikely that fisheries mortality has been the dominant driver of porpoise decline in the Yangtze mainstem, suggesting that regulating regional fisheries may not be sufficient for porpoise conservation. (C) 2012 Elsevier Ltd. All rights reserved.
关键词[WOS]: YANGTZE FINLESS PORPOISE ; NEOPHOCAENA-PHOCAENOIDES-ASIAEORIENTALIS ; BAIJI LIPOTES-VEXILLIFER ; ET-AL. 2007 ; CONSERVATION BIOLOGY ; MORTALITY PARAMETERS ; MONITORING TRENDS ; POPULATION STATUS ; MARINE MAMMALS ; DONGTING LAKE
语种: 英语
项目资助者: Marine Mammal Commission ; Ocean Park Conservation Foundation Hong Kong ; People's Trust for Endangered Species ; ZSL's EDGE of Existence programme ; NERC Postdoctoral Fellowship(NE/D009456/1) ; Royal Society University Research Fellowship(UF080320)
WOS记录号: WOS:000316651200041
ISSN号: 0006-3207
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/19268
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.Zool Soc London, Inst Zool, London NW1 4RY, England
2.Univ Liverpool, Dept Epidemiol & Populat Hlth, Neston CH64 7TE, Cheshire, England
3.NOAA, Protected Resources Div, SW Fisheries Sci Ctr, Natl Marine Fisheries Serv, La Jolla, CA 92037 USA
4.Freshwater Dolphin CIC, Madrid 28043, Spain
5.Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Peoples R China
6.China Three Gorges Corp, Dept Sci Technol & Environm, Yichang 443002, Peoples R China
7.Nanjing Normal Univ, Coll Life Sci, Jiangsu Key Lab Biodivers & Biotechnol, Nanjing 210097, Jiangsu, Peoples R China
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