气候变化领域集成服务门户(CCPortal): Marked post-18th century environmental change in high-arctic ecosystems

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DOI	10.1126/science.266.5184.416
	Marked post-18th century environmental change in high-arctic ecosystems
	Douglas M.S.V.; Smol J.P.; Blake Jr. W.
发表日期	1994
ISSN	0036-8075
起始页码	416
结束页码	419
卷号	266 期号:5184
英文摘要	Paleolimnological data from three high-arctic ponds on Cape Herschel, Ellesmere Island, Canada, show that diatom assemblages were relatively stable over the last few millennia but then experienced unparalleled changes beginning in the 19th century. The environmental factors causing these assemblage shifts may be related to recent climatic warming. Regardless of the cause, the biota of these isolated and seemingly pristine ponds have changed dramatically in the recent past and any hopes of cataloging natural assemblages may already be fruitless.Paleolimnological data from three high-arctic ponds on Cape Herschel, Ellesmere Island, Canada, show that diatom assemblages were relatively stable over the last few millennia but then experienced unparalleled changes beginning in the 19th century. The environmental factors causing these assemblage shifts may be related to recent climatic warming. Regardless of the cause, the biota of these isolated and seemingly pristine ponds have changed dramatically in the recent past and any hopes of cataloging natural assemblages may already be fruitless.
英文关键词	Biology; Environmental impact; Geographical regions; Sediments; Surface waters; Arctic ponds; Biota; Diatom assemblages; Ontogeny; Paleolimnology; Ecosystems; Arctic; article; climate; ecosystem; environmental factor; priority journal; Bacillariophyta; cellular organisms; anthropogenic impact; Arctic ecosystem; diatom; diatom assemblage; global warming; palaeolimnological data; palaeolimnology; Arctic, Ellesmere Island; Canada, Ellesmere Island, Cape Herschel; Canada, Northwest Territories, Ellesmere Island, Cape Herschel
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/243565
作者单位	Paleoecological Environ. Assess. R., Department of Biology, Queen's University, Kingston, Ont. K7L 3N6, Canada; Geological Survey of Canada, 601 Booth Street, Ottawa, Ont. K1A 0E8, Canada; Department of Geology and Geography, University of Massachusetts, Amherst, MA 01003, United States
推荐引用方式 GB/T 7714	Douglas M.S.V.,Smol J.P.,Blake Jr. W.. Marked post-18th century environmental change in high-arctic ecosystems[J],1994,266(5184).
APA	Douglas M.S.V.,Smol J.P.,&Blake Jr. W..(1994).Marked post-18th century environmental change in high-arctic ecosystems.Science,266(5184).
MLA	Douglas M.S.V.,et al."Marked post-18th century environmental change in high-arctic ecosystems".Science 266.5184(1994).