Can local ecological knowledge be used to assess status and extinction drivers in a threatened freshwater cetacean?

CORC > 水生生物研究所 > 中科院水生所知识产出（2009年前） > 水生生物多样性与资源保护研究中心 > 期刊论文

	Can local ecological knowledge be used to assess status and extinction drivers in a threatened freshwater cetacean?
	Turvey, Samuel T.1; Risley, Claire L.2; Moore, Jeffrey E.3; Barrett, Leigh A.4; Hao Yujiang 5; Zhao Xiujiang 5,6; Zhou Kaiya 7; Wang Ding 5
刊名	BIOLOGICAL CONSERVATION
	2013
卷号	157 期号:-页码:352-360
关键词	Fisheries by-catch Incidental mortality Interview survey Mortality index Neophocaena Yangtze finless porpoise
ISSN号	0006-3207
通讯作者	Turvey, ST (reprint author), Zool Soc London, Inst Zool, Regents Pk, London NW1 4RY, England.
中文摘要	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.
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.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Biodiversity Conservation ; Ecology ; Environmental Sciences
研究领域[WOS]	Biodiversity & Conservation ; Environmental Sciences & Ecology
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
收录类别	SCI
资助信息	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]
语种	英语
WOS记录号	WOS:000316651200041
公开日期	2013-10-31
内容类型	期刊论文
源URL	[http://ir.ihb.ac.cn/handle/342005/19268]
专题	水生生物研究所_水生生物多样性与资源保护研究中心_期刊论文
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
推荐引用方式 GB/T 7714	Turvey, Samuel T.,Risley, Claire L.,Moore, Jeffrey E.,et al. Can local ecological knowledge be used to assess status and extinction drivers in a threatened freshwater cetacean?[J]. BIOLOGICAL CONSERVATION,2013,157(-):352-360.
APA	Turvey, Samuel T..,Risley, Claire L..,Moore, Jeffrey E..,Barrett, Leigh A..,Hao Yujiang.,...&Wang Ding.(2013).Can local ecological knowledge be used to assess status and extinction drivers in a threatened freshwater cetacean?.BIOLOGICAL CONSERVATION,157(-),352-360.
MLA	Turvey, Samuel T.,et al."Can local ecological knowledge be used to assess status and extinction drivers in a threatened freshwater cetacean?".BIOLOGICAL CONSERVATION 157.-(2013):352-360.