@article{oai:nipr.repo.nii.ac.jp:00010109,
 author = {Vincent, Warwick F. and Whyte, Lyle G. and Lovejoy, Connie and Greer, Charles W. and Laurion, Isabelle and Suttle, Curtis A. and Corbeil, Jacques and Mueller, Derek R. and Vincent, Warwick F. and Whyte, Lyle G. and Lovejoy, Connie and Greer, Charles W. and Laurion, Isabelle and Suttle, Curtis A. and Corbeil, Jacques and Mueller, Derek R.},
 issue = {3},
 journal = {Polar science, Polar science},
 month = {Nov},
 note = {As a contribution to the International Polar Year program MERGE (Microbiological and Ecological Responses to Global Environmental change in polar regions), studies were conducted on the terrestrial and aquatic microbial ecosystems of northern Canada (details at: http://www.cen.ulaval.ca/merge/). The habitats included permafrost soils, saline coldwater springs, supraglacial lakes on ice shelves, epishelf lakes in fjords, deep meromictic lakes, and shallow lakes, ponds and streams. Microbiological samples from each habitat were analysed by HPLC pigment assays, light and fluorescence microscopy, and DNA sequencing. The results show a remarkably diverse microflora of viruses, Archaea (including ammonium oxidisers and methanotrophs), Bacteria (including filamentous sulfur-oxidisers in a saline spring and benthic mats of Cyanobacteria in many waterbodies), and protists (including microbial eukaryotes in snowbanks and ciliates in ice-dammed lakes). In summer 2008, we recorded extreme warming at Ward Hunt Island and vicinity, the northern limit of the Canadian high Arctic, with air temperatures up to 20.5 °C. This was accompanied by pronounced changes in microbial habitats: deepening of the permafrost active layer; loss of perennial lake ice and sea ice; loss of ice-dammed freshwater lakes; and 23% loss of total ice shelf area, including complete break-up and loss of the Markham Ice Shelf cryo-ecosystem. These observations underscore the vulnerability of Arctic microbial ecosystems to ongoing climate change., MERGEプログラムの一環として、北部カナダの陸上、陸水学的研究がレビューされた。凍土土壌、棚氷の氷河湖、池、川等のハビタートから得られた試料を用い、HPLC､顕微鏡観察、DNAシークエンスによって微生物を解析した結果、ウイルス､アーケアの著しく多様な微生物フローラが明らかになった。とくに、エルズミア島北部のワードハント島では顕著な温暖化により、微生物ハビタート、淡水湖沼、棚氷の氷床生態系の急変が認められ、北極の脆弱な微生物生態系への影響が懸念された。},
 pages = {171--180},
 title = {Arctic microbial ecosystems and impacts of extreme warming during the International Polar Year},
 volume = {3},
 year = {2009}
}