中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Common pattern of population decline for freshwater cetacean species in deteriorating habitats

文献类型:期刊论文

作者Huang, Shiang-Lin1,2; Hao, Yujiang1; Mei, Zhigang1,3; Turvey, Samuel T.4; Wang, Ding1
刊名FRESHWATER BIOLOGY
出版日期2012-06-01
卷号57期号:6页码:1266-1276
关键词carrying capacity extinction debt habitat conservation population viability analysis power analysis precautionary approach
ISSN号0046-5070
通讯作者Wang, D (reprint author), Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Hubei, Peoples R China.
中文摘要1. Freshwater cetacean species, including the baiji (Lipotes vexillifer), Amazon River dolphin (Inia geoffrensis), Ganges/Indus River dolphins (Platanista spp.) and Yangtze finless porpoise (Neophocaena asiaeorientalis asiaeorientalis), apex predators in megariver ecosystems, face serious challenges owing to the deterioration of habitat quality. 2. We simulated population change of four freshwater cetacean species under increasing habitat deterioration. Carrying capacity (K) was used to represent the habitat quality, and a logistic model was used to describe the rate of habitat deterioration (dK). 3. An individual-based Leslie matrix model showed that population declines and extinctions in freshwater cetaceans under increasing habitat deterioration exhibit a consistent pattern irrespective of the initial level of K or population size. When dK is low, population abundance fluctuates stochastically around initial K, but a rapid increase in dK is accompanied by a sharp population decline, with a residual population ultimately declining continuously to extinction. 4. Simulations show that traditional census survey techniques used in cetacean species are unlikely to detect early signs of population decline before a critical level is reached. 5. Empirical data of the likely extinction of baiji strongly agree with our simulation exercise, implying that extinction of other freshwater cetacean species may occur sooner than previously considered. Hence, precautionary approaches for habitat restoration and landscape management should be implemented before freshwater cetacean population declines are detected, and ideally, before habitat quality begins to deteriorate.
英文摘要1. Freshwater cetacean species, including the baiji (Lipotes vexillifer), Amazon River dolphin (Inia geoffrensis), Ganges/Indus River dolphins (Platanista spp.) and Yangtze finless porpoise (Neophocaena asiaeorientalis asiaeorientalis), apex predators in megariver ecosystems, face serious challenges owing to the deterioration of habitat quality. 2. We simulated population change of four freshwater cetacean species under increasing habitat deterioration. Carrying capacity (K) was used to represent the habitat quality, and a logistic model was used to describe the rate of habitat deterioration (dK). 3. An individual-based Leslie matrix model showed that population declines and extinctions in freshwater cetaceans under increasing habitat deterioration exhibit a consistent pattern irrespective of the initial level of K or population size. When dK is low, population abundance fluctuates stochastically around initial K, but a rapid increase in dK is accompanied by a sharp population decline, with a residual population ultimately declining continuously to extinction. 4. Simulations show that traditional census survey techniques used in cetacean species are unlikely to detect early signs of population decline before a critical level is reached. 5. Empirical data of the likely extinction of baiji strongly agree with our simulation exercise, implying that extinction of other freshwater cetacean species may occur sooner than previously considered. Hence, precautionary approaches for habitat restoration and landscape management should be implemented before freshwater cetacean population declines are detected, and ideally, before habitat quality begins to deteriorate.
WOS标题词Science & Technology ; Life Sciences & Biomedicine
类目[WOS]Marine & Freshwater Biology
研究领域[WOS]Marine & Freshwater Biology
关键词[WOS]BOTTLE-NOSED DOLPHINS ; INDUS RIVER DOLPHIN ; YANGTZE-RIVER ; CONSERVATION BIOLOGY ; PLATANISTA-GANGETICA ; SOTALIA-FLUVIATILIS ; ACIPENSER-SINENSIS ; VIABILITY ANALYSIS ; CARRYING-CAPACITY ; CHINESE STURGEON
收录类别SCI
资助信息Chinese National Natural Science Foundation[30730018]; Chinese Academy of Sciences[KSCX2-EW-Z-4]
语种英语
WOS记录号WOS:000303435100013
公开日期2012-09-25
源URL[http://ir.ihb.ac.cn/handle/342005/16803]  
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, Hubei, Peoples R China
2.Natl Taiwan Ocean Univ, Dept Environm Biol & Fishery Sci, Keelung, Taiwan
3.Chinese Acad Sci, Grad Sch, Beijing, Peoples R China
4.Zool Soc London, Inst Zool, London NW1 4RY, England
推荐引用方式
GB/T 7714
Huang, Shiang-Lin,Hao, Yujiang,Mei, Zhigang,et al. Common pattern of population decline for freshwater cetacean species in deteriorating habitats[J]. FRESHWATER BIOLOGY,2012,57(6):1266-1276.
APA Huang, Shiang-Lin,Hao, Yujiang,Mei, Zhigang,Turvey, Samuel T.,&Wang, Ding.(2012).Common pattern of population decline for freshwater cetacean species in deteriorating habitats.FRESHWATER BIOLOGY,57(6),1266-1276.
MLA Huang, Shiang-Lin,et al."Common pattern of population decline for freshwater cetacean species in deteriorating habitats".FRESHWATER BIOLOGY 57.6(2012):1266-1276.

入库方式: OAI收割

来源:水生生物研究所

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