IHB OpenIR  > 水生生物多样性与资源保护研究中心  > 期刊论文
Common pattern of population decline for freshwater cetacean species in deteriorating habitats
Huang, Shiang-Lin1,2; Hao, Yujiang1; Mei, Zhigang1,3; Turvey, Samuel T.4; Wang, Ding1; Wang, D (reprint author), Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Hubei, Peoples R China.
2012-06-01
Source PublicationFRESHWATER BIOLOGY
ISSN0046-5070
Volume57Issue:6Pages:1266-1276
Abstract1. 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.; 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.
SubtypeArticle
KeywordCarrying Capacity Extinction Debt Habitat Conservation Population Viability Analysis Power Analysis Precautionary Approach
Department[Huang, Shiang-Lin; Hao, Yujiang; Mei, Zhigang; Wang, Ding] Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Hubei, Peoples R China; [Huang, Shiang-Lin] Natl Taiwan Ocean Univ, Dept Environm Biol & Fishery Sci, Keelung, Taiwan; [Mei, Zhigang] Chinese Acad Sci, Grad Sch, Beijing, Peoples R China; [Turvey, Samuel T.] Zool Soc London, Inst Zool, London NW1 4RY, England
DOI10.1111/j.1365-2427.2012.02772.x
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Funding OrganizationChinese National Natural Science Foundation[30730018]; Chinese Academy of Sciences[KSCX2-EW-Z-4] ; Chinese National Natural Science Foundation[30730018]; Chinese Academy of Sciences[KSCX2-EW-Z-4] ; Chinese National Natural Science Foundation[30730018]; Chinese Academy of Sciences[KSCX2-EW-Z-4] ; Chinese National Natural Science Foundation[30730018]; Chinese Academy of Sciences[KSCX2-EW-Z-4]
Indexed BySCI
Language英语
WOS Research AreaMarine & Freshwater Biology
WOS SubjectMarine & Freshwater Biology
WOS IDWOS:000303435100013
WOS KeywordBOTTLE-NOSED DOLPHINS ; INDUS RIVER DOLPHIN ; YANGTZE-RIVER ; CONSERVATION BIOLOGY ; PLATANISTA-GANGETICA ; SOTALIA-FLUVIATILIS ; ACIPENSER-SINENSIS ; VIABILITY ANALYSIS ; CARRYING-CAPACITY ; CHINESE STURGEON
Funding OrganizationChinese National Natural Science Foundation[30730018]; Chinese Academy of Sciences[KSCX2-EW-Z-4] ; Chinese National Natural Science Foundation[30730018]; Chinese Academy of Sciences[KSCX2-EW-Z-4] ; Chinese National Natural Science Foundation[30730018]; Chinese Academy of Sciences[KSCX2-EW-Z-4] ; Chinese National Natural Science Foundation[30730018]; Chinese Academy of Sciences[KSCX2-EW-Z-4]
Citation statistics
Cited Times:20[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/16803
Collection水生生物多样性与资源保护研究中心_期刊论文
Corresponding AuthorWang, D (reprint author), Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Hubei, Peoples R China.
Affiliation1.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
Recommended Citation
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,&Wang, D .(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.
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