River Dolphins Can Act as Population Trend Indicators in Degraded Freshwater Systems
文献类型：期刊论文
| 作者 | Turvey, Samuel T.1; Risley, Claire L.2; Barrett, Leigh A.3; Hao Yujiang4; Ding, Wang4 |
| 刊名 | PLOS ONE
 |
| 出版日期 | 2012-05-29 |
| 卷号 | 7期号:5页码:e37902 |
| 关键词 | YANGTZE FINLESS PORPOISE TOP PREDATORS EXTINCTION RISK LIFE-HISTORY SPECIES RICHNESS CLIMATE-CHANGE CONSERVATION BIODIVERSITY CHINA FISHERIES |
| ISSN号 | 1932-6203 |
| 通讯作者 | Turvey, ST (reprint author), Zool Soc London, Inst Zool, Regents Pk, London NW1 4RY, England. |
| 中文摘要 | Conservation attention on charismatic large vertebrates such as dolphins is often supported by the suggestion that these species represent surrogates for wider biodiversity, or act as indicators of ecosystem health. However, their capacity to act as indicators of patterns or trends in regional biodiversity has rarely been tested. An extensive new dataset of >300 last-sighting records for the Yangtze River dolphin or baiji and two formerly economically important fishes, the Yangtze paddlefish and Reeves' shad, all of which are probably now extinct in the Yangtze, was collected during an interview survey of fishing communities across the middle-lower Yangtze drainage. Untransformed last-sighting date frequency distributions for these species show similar decline curves over time, and the linear gradients of transformed last-sighting date series are not significantly different from each other, demonstrating that |
| 英文摘要 | Conservation attention on charismatic large vertebrates such as dolphins is often supported by the suggestion that these species represent surrogates for wider biodiversity, or act as indicators of ecosystem health. However, their capacity to act as indicators of patterns or trends in regional biodiversity has rarely been tested. An extensive new dataset of >300 last-sighting records for the Yangtze River dolphin or baiji and two formerly economically important fishes, the Yangtze paddlefish and Reeves' shad, all of which are probably now extinct in the Yangtze, was collected during an interview survey of fishing communities across the middle-lower Yangtze drainage. Untransformed last-sighting date frequency distributions for these species show similar decline curves over time, and the linear gradients of transformed last-sighting date series are not significantly different from each other, demonstrating that these species experienced correlated population declines in both timing and rate of decline. Whereas species may be expected to respond differently at the population level even in highly degraded ecosystems, highly vulnerable (e.g. migratory) species can therefore display very similar responses to extrinsic threats, even if they represent otherwise very different taxonomic, biological and ecological groupings. Monitoring the status of river dolphins or other megafauna therefore has the potential to provide wider information on the status of other threatened components of sympatric freshwater biotas, and so represents a potentially important monitoring tool for conservation management. We also show that interview surveys can provide robust quantitative data on relative population dynamics of different species. |
| WOS标题词 | Science & Technology |
| 类目[WOS] | Multidisciplinary Sciences |
| 研究领域[WOS] | Science & Technology - Other Topics |
| 关键词[WOS] | YANGTZE FINLESS PORPOISE ; TOP PREDATORS ; EXTINCTION RISK ; LIFE-HISTORY ; SPECIES RICHNESS ; CLIMATE-CHANGE ; CONSERVATION ; BIODIVERSITY ; CHINA ; FISHERIES |
| 收录类别 | SCI |
| 资助信息 | Marine Mammal Commission; Ocean Park Conservation Foundation Hong Kong; People's Trust for Endangered Species; Zoological Society of London's (ZSL's) EDGE of Existence programme; Natural Environment Research Council (NERC) Postdoctoral Fellowship; Royal Society University Research Fellowship |
| 语种 | 英语 |
| WOS记录号 | WOS:000305349600039 |
| 公开日期 | 2012-09-25 |
| 源URL | [http://ir.ihb.ac.cn/handle/342005/16795]  |
| 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, Neston, Cheshire, England 3.Freshwater Dolphin CIC, Madrid, Spain 4.Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Turvey, Samuel T.,Risley, Claire L.,Barrett, Leigh A.,et al. River Dolphins Can Act as Population Trend Indicators in Degraded Freshwater Systems[J]. PLOS ONE,2012,7(5):e37902. |
| APA | Turvey, Samuel T.,Risley, Claire L.,Barrett, Leigh A.,Hao Yujiang,&Ding, Wang.(2012).River Dolphins Can Act as Population Trend Indicators in Degraded Freshwater Systems.PLOS ONE,7(5),e37902. |
| MLA | Turvey, Samuel T.,et al."River Dolphins Can Act as Population Trend Indicators in Degraded Freshwater Systems".PLOS ONE 7.5(2012):e37902. |
入库方式： OAI收割
来源：水生生物研究所
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