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SUMMARY:Arctic ecosystems\, lac Léman and the limnology of global change
DTSTART:20120124T161500
DTSTAMP:20260916T050608Z
UID:a7f6664b284adbe0dc0a7ef22cbf295e6122f839cbc1f02c2c0972a1
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr Warwick F.\, VINCENT\, Centre d’études nordiques (CEN)\,
  Université Laval\, Québec City (CA)\nThe year 2012 marks 100 years sinc
 e the passing away of François-Alfonse Forel\, and 120 years since public
 ation of the first volume in his three volume treatise that founded Limnol
 ogy as "l'océanographie des lacs" (Forel\, F.-A. 1892. Le Léman - Monogr
 aphie Limnologique\, Tome I\; F. Rouge\, éditeur\, Lausanne\, page vi). H
 is research on lac Léman encompassed a broad sweep of limnological topics
  ranging from fundamental work on hydrodynamics\, underwater light and mic
 robiology\, to ecosystem services and the relationship between human activ
 ities and the lake. More than a century later\, these continue to be major
  themes at the frontiers of limnological research\, but in ways that Forel
  could never imagine: satellite remote sensing of lake thermal regime and 
 colour\, genomic analysis of microbial community structure and biogeochemi
 cal function\, and the impacts of human activities at a global scale. This
  talk illustrates these themes via examples of our limnological research i
 n the Arctic\, a region that is currently warming at rates more than twice
  the global average. The remarkably diverse aquatic ecosystems of this reg
 ion are responding in different ways\, from expansion of permafrost thaw l
 akes (with potential feedback effects on the global climate system)\, to a
 brupt step-like changes that are driving some ecosystem types to the brink
  of extinction. Analogous to Forel's multidisciplinary approach\, Integrat
 ed Regional Impact Studies (IRIS's) are now being applied to the Canadian 
 Arctic to help manage this vast area in the face of rapid environmental ch
 ange.
LOCATION:GR A3 32
STATUS:CONFIRMED
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