气候变化领域集成服务门户(CCPortal): Recent climate extremes alter alpine lake ecosystems

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DOI	10.1073/pnas.0806481105
	Recent climate extremes alter alpine lake ecosystems
	Parker B.R.; Vinebrooke R.D.; Schindler D.W.
发表日期	2008
ISSN	0027-8424
起始页码	12927
结束页码	12931
卷号	105 期号:35
英文摘要	Here, we show that alpine lake ecosystems are responsive to interannual variation in climate, based on long-term limnological and meteorological data from the Canadian Rockies. In the 2000s, in years with colder winter temperatures, higher winter snowfall, later snowmelt, shorter ice-free seasons, and dryer summers, relative to the 1990s, alpine lakes became clearer, warmer, and mixed to deeper depths. Further, lakes became more dilute and nutrient-poor, the latter leading to significant declines in total phytoplankton biomass. However, increased concentrations of dissolved organic carbon in lake water stimulated the appearance of small mixotrophic algal species, partially offsetting the decline in autotrophic phytoplankton biomass and increasing algal species richness. The climate regime in the 2000s altered the physical, chemical, and biological character and the function of high-elevation aquatic ecosystems. Forecasts of increased climatic variability in the future pose serious ramifications for both the biodiversity and ecosystem function of high-elevation lakes. © 2008 by The National Academy of Sciences of the USA.
英文关键词	Biodiversity; Function; Global change; Plankton
语种	英语
scopus关键词	lake water; organic carbon; alga; aquatic environment; article; biodiversity; biomass; climate; climate change; lake ecosystem; meteorological phenomena; mixotroph; phytoplankton; priority journal; species; summer; temperature; winter; Animals; Canada; Cold Climate; Ecosystem; Fresh Water; Ice; Meteorological Factors; Phytoplankton; Principal Component Analysis; Seasons; algae
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/159172
作者单位	Parker, B.R., Department of Biological Sciences, University of Alberta, Edmonton, AB T6G 2E9, Canada, Environment Canada, 123 Main Street, Winnipeg, MB R3C 4W2, Canada; Vinebrooke, R.D., Department of Biological Sciences, University of Alberta, Edmonton, AB T6G 2E9, Canada; Schindler, D.W., Department of Biological Sciences, University of Alberta, Edmonton, AB T6G 2E9, Canada
推荐引用方式 GB/T 7714	Parker B.R.,Vinebrooke R.D.,Schindler D.W.. Recent climate extremes alter alpine lake ecosystems[J],2008,105(35).
APA	Parker B.R.,Vinebrooke R.D.,&Schindler D.W..(2008).Recent climate extremes alter alpine lake ecosystems.Proceedings of the National Academy of Sciences of the United States of America,105(35).
MLA	Parker B.R.,et al."Recent climate extremes alter alpine lake ecosystems".Proceedings of the National Academy of Sciences of the United States of America 105.35(2008).