Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s10933-008-9273-8 |
Diatoms reveal complex spatial and temporal patterns of recent limnological change in West Greenland | |
Perren, Bianca B.1; Douglas, Marianne S. V.1; Anderson, N. John2 | |
通讯作者 | Perren, Bianca B. |
来源期刊 | JOURNAL OF PALEOLIMNOLOGY
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ISSN | 0921-2728 |
出版年 | 2009 |
卷号 | 42期号:2页码:233-247 |
英文摘要 | Diatoms in sediment cores were analysed across a range of stratigraphic resolutions along a transect of 23 lakes spanning the ice-free margin of the west coast of Greenland (similar to 67A degrees N), to explore spatial and temporal patterns of recent (last similar to 150 years) environmental change in the region. These records display heterogeneous lake development trajectories over the last several centuries. Estimates of species composition turnover (beta-diversity) since 1850 AD are among the lowest for lakes in the Arctic, and are comparable to "unimpacted" reference lakes from temperate regions. Most of the change that occurred in West Greenland lakes pre-dates potential industrial anthropogenic effects, while post-1850 change is well within the natural range of variability for these systems. Nonetheless, a spatial pattern in core "top-bottom" changes is apparent across the transect: lakes in the arid interior of the region, adjacent to the ice sheet, and those with higher pH, register greater change than those in the more maritime climate of the coast. This suggests that climate plays an indirect role in the recent development of these lakes, and that recent anthropogenic forcing has not yet exceeded major ecological thresholds in this region. |
英文关键词 | Diatoms West Greenland Arctic lakes Climate change Beta diversity |
类型 | Article |
语种 | 英语 |
国家 | Canada ; England |
收录类别 | SCI-E |
WOS记录号 | WOS:000267825100006 |
WOS关键词 | RECENT ENVIRONMENTAL-CHANGES ; NORTH-ATLANTIC OSCILLATION ; REMOTE MOUNTAIN LAKES ; WATER-QUALITY CHANGES ; ARCTIC LAKES ; CLIMATE-CHANGE ; SOUTHERN GREENLAND ; HOLOCENE CLIMATE ; EAST GREENLAND ; ICE-SHEET |
WOS类目 | Environmental Sciences ; Geosciences, Multidisciplinary ; Limnology |
WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Marine & Freshwater Biology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/161721 |
作者单位 | 1.Univ Toronto, Dept Geol, Toronto, ON M5S 3B1, Canada; 2.Univ Loughborough, Dept Geog, Loughborough LE11 3TU, Leics, England |
推荐引用方式 GB/T 7714 | Perren, Bianca B.,Douglas, Marianne S. V.,Anderson, N. John. Diatoms reveal complex spatial and temporal patterns of recent limnological change in West Greenland[J],2009,42(2):233-247. |
APA | Perren, Bianca B.,Douglas, Marianne S. V.,&Anderson, N. John.(2009).Diatoms reveal complex spatial and temporal patterns of recent limnological change in West Greenland.JOURNAL OF PALEOLIMNOLOGY,42(2),233-247. |
MLA | Perren, Bianca B.,et al."Diatoms reveal complex spatial and temporal patterns of recent limnological change in West Greenland".JOURNAL OF PALEOLIMNOLOGY 42.2(2009):233-247. |
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