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
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。