Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.14753 |
The global decline of freshwater megafauna | |
He, Fengzhi1,2,3; Zarfl, Christiane4; Bremerich, Vanessa1; David, Jonathan N. W.5; Hogan, Zeb6; Kalinkat, Gregor1; Tockner, Klement1,2,7; Jaehnig, Sonja C.1 | |
2019-11-01 | |
发表期刊 | GLOBAL CHANGE BIOLOGY
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ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2019 |
卷号 | 25期号:11页码:3883-3892 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; England; USA; Austria |
英文摘要 | Freshwater ecosystems are among the most diverse and dynamic ecosystems on Earth. At the same time, they are among the most threatened ecosystems but remain underrepresented in biodiversity research and conservation efforts. The rate of decline of vertebrate populations is much higher in freshwaters than in terrestrial or marine realms. Freshwater megafauna (i.e., freshwater animals that can reach a body mass >= 30 kg) are intrinsically prone to extinction due to their large body size, complex habitat requirements and slow life-history strategies such as long life span and late maturity. However, population trends and distribution changes of freshwater megafauna, at continental or global scales, remain unclear. In the present study, we compiled population data of 126 freshwater megafauna species globally from the Living Planet Database and available literature, and distribution data of 44 species inhabiting Europe and the United States from literature and databases of the International Union for Conservation of Nature and NatureServe. We quantified changes in population abundance and distribution range of freshwater megafauna species. Globally, freshwater megafauna populations declined by 88% from 1970 to 2012, with the highest declines in the Indomalaya and Palearctic realms (-99% and -97%, respectively). Among taxonomic groups, mega-fishes exhibited the greatest global decline (-94%). In addition, freshwater megafauna experienced major range contractions. For example, distribution ranges of 42% of all freshwater megafauna species in Europe contracted by more than 40% of historical areas. We highlight the various sources of uncertainty in tracking changes in populations and distributions of freshwater megafauna, such as the lack of monitoring data and taxonomic and spatial biases. The detected trends emphasize the critical plight of freshwater megafauna globally and highlight the broader need for concerted, targeted and timely conservation of freshwater biodiversity. |
英文关键词 | biodiversity conservation distribution extinction population range contraction size vertebrate |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000489174400026 |
WOS关键词 | EXTINCTION RISK ; BIODIVERSITY ; CONSERVATION ; DIVERSITY ; STURGEON ; CONTRACTION ; HYDROPOWER ; INDICATORS ; FLAGSHIPS ; PATTERNS |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/188074 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.Leibniz Inst Freshwater Ecol & Inland Fisheries, Berlin, Germany; 2.Free Univ Berlin, Inst Biol, Berlin, Germany; 3.Queen Mary Univ London, Sch Geog, London, England; 4.Eberhard Karts Univ Tubingen, Ctr Appl Geosci, Tubingen, Germany; 5.Univ Oxford, Sch Geog & Environm, Oxford, England; 6.Univ Nevada, Dept Biol, Reno, NV 89557 USA; 7.Austrian Sci Fund FWF, Vienna, Austria |
推荐引用方式 GB/T 7714 | He, Fengzhi,Zarfl, Christiane,Bremerich, Vanessa,et al. The global decline of freshwater megafauna[J]. GLOBAL CHANGE BIOLOGY,2019,25(11):3883-3892. |
APA | He, Fengzhi.,Zarfl, Christiane.,Bremerich, Vanessa.,David, Jonathan N. W..,Hogan, Zeb.,...&Jaehnig, Sonja C..(2019).The global decline of freshwater megafauna.GLOBAL CHANGE BIOLOGY,25(11),3883-3892. |
MLA | He, Fengzhi,et al."The global decline of freshwater megafauna".GLOBAL CHANGE BIOLOGY 25.11(2019):3883-3892. |
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