The Yangtze finless porpoise: On an accelerating path to extinction?

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

	The Yangtze finless porpoise: On an accelerating path to extinction?
	Mei, Zhigang 1; Zhang, Xinqiao 1,2,3; Huang, Shiang-Lin 1; Zhao, Xiujiang 4; Hao, Yujiang 1; Zhang, Lin 1; Qian, Zhengyi 1; Zheng, Jinsong 1; Wang, Kexiong 1; Wang, Ding 1
刊名	BIOLOGICAL CONSERVATION
	2014-04-01
卷号	172 期号:-页码:117-123
关键词	Yangtze finless porpoise Census Line transect survey Population abundance Intrinsic rate of increase Extinction risk
ISSN号	0006-3207
通讯作者	Wang, KX (reprint author), Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China.
中文摘要	For the conservation of endangered animals to be effective, information on population distribution and abundance requires regular updating from census efforts. The Yangtze finless porpoise (Neophocaena asiaeorientalis asiaeorientalis) has recently been reclassified as critically endangered (CR) due to a rapid decline in abundance. Baseline measures currently used for identifying extinction risk and implementing conservation actions may lag behind the actual demographic trend of a population and, thus, should be updated frequently. In this study, we report the results of a line transect survey of porpoises conducted in the middle and lower reaches of the Yangtze River in 2012. Five hundred and five porpoises (95% CI = 348 to 662, CV = 15.86%) remain in the main stem of the Yangtze River, mostly concentrated between Ezhou and Zhenjiang. Our results reveal that the decline in the Yangtze finless porpoise population is more rapid than previously estimated. The porpoise distribution has become more restricted and fragmented with two new gaps in their distribution. We show that the extinction risk for the Yangtze finless porpoise population has increased substantially and, hence, the expected time to extinction has moved closer. Current conservation methods are insufficient and ineffective, and need to be revised. More active conservation actions, such as enforcing year-long fishing bans in the in situ reserves and building more ex situ reserves, should be implemented urgently. (C) 2014 Elsevier Ltd. All rights reserved.
英文摘要	For the conservation of endangered animals to be effective, information on population distribution and abundance requires regular updating from census efforts. The Yangtze finless porpoise (Neophocaena asiaeorientalis asiaeorientalis) has recently been reclassified as critically endangered (CR) due to a rapid decline in abundance. Baseline measures currently used for identifying extinction risk and implementing conservation actions may lag behind the actual demographic trend of a population and, thus, should be updated frequently. In this study, we report the results of a line transect survey of porpoises conducted in the middle and lower reaches of the Yangtze River in 2012. Five hundred and five porpoises (95% CI = 348 to 662, CV = 15.86%) remain in the main stem of the Yangtze River, mostly concentrated between Ezhou and Zhenjiang. Our results reveal that the decline in the Yangtze finless porpoise population is more rapid than previously estimated. The porpoise distribution has become more restricted and fragmented with two new gaps in their distribution. We show that the extinction risk for the Yangtze finless porpoise population has increased substantially and, hence, the expected time to extinction has moved closer. Current conservation methods are insufficient and ineffective, and need to be revised. More active conservation actions, such as enforcing year-long fishing bans in the in situ reserves and building more ex situ reserves, should be implemented urgently. (C) 2014 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]	FRESH-WATER CETACEAN ; POPULATION DECLINE ; CONSERVATION ; RIVER ; ABUNDANCE ; HABITATS
收录类别	SCI
资助信息	National Natural Science Foundation of China [31170501, 31070347]; Knowledge Innovation Program of the Chinese Academy of Sciences [KSCX2-EW-Z-4]; Special Fund for Agro-scientific Research in the Public Interest [201203086]
语种	英语
WOS记录号	WOS:000336337800014
公开日期	2014-08-07
内容类型	期刊论文
源URL	[http://ir.ihb.ac.cn/handle/342005/19995]
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.Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 3.WWF China, Beijing 100006, Peoples R China 4.China Three Gorges Corp, Beijing 100038, Peoples R China
推荐引用方式 GB/T 7714	Mei, Zhigang,Zhang, Xinqiao,Huang, Shiang-Lin,et al. The Yangtze finless porpoise: On an accelerating path to extinction?[J]. BIOLOGICAL CONSERVATION,2014,172(-):117-123.
APA	Mei, Zhigang.,Zhang, Xinqiao.,Huang, Shiang-Lin.,Zhao, Xiujiang.,Hao, Yujiang.,...&Wang, Ding.(2014).The Yangtze finless porpoise: On an accelerating path to extinction?.BIOLOGICAL CONSERVATION,172(-),117-123.
MLA	Mei, Zhigang,et al."The Yangtze finless porpoise: On an accelerating path to extinction?".BIOLOGICAL CONSERVATION 172.-(2014):117-123.