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SUMMARY:EESS talk on "Non-linearities in lake responses to Climate"
DTSTART:20171003T121500
DTEND:20171003T131500
DTSTAMP:20260924T071701Z
UID:39b514d3066da077d6eeabba4a2a45ef729c254ba20dc8e25dcaec58
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr Marie-Elodie Perga\, Associate professor\, Institute of Ear
 th Surface Dynamics\, UNIL\, CH\n\nShort biography:\nDr Marie-Elodie Perga
  is Associate Professor at the Institute of Earth Surface Dynamics at Univ
 ersity of Lausanne since January 2017. After a PhD on Carbon fluxes in lak
 e food webs at the INRA Thonon les Bains (France)\, she spent her post-doc
  at University of Victoria (Canada) studying plankton interactions in coas
 tal lakes of Vancouver Islands. As “chargée” then “directeur” de 
 Recherche at the CARRTEL\, Thonon\, she worked on the impacts of Climate C
 hange on the biogeochemistry of the highly anthropogenized peri-alpine lak
 es resorting to high-resolution paleo-ecological methods. She is now pursu
 ing the question of lakes vulnerability to climate change also on high-alt
 itude lakes combining sediment archives and high frequency autonomous moni
 toring approaches.\nAbstract:\nIn Ecology\, we usually rely on the tacit a
 ssumption that ecosystems are responding linearly to environmental constra
 ins\, i.e. one condition of the forcing variable should trigger one and on
 ly one ecosystem state. At the opposite\, non-linearities imply bifurcatio
 ns in ecosystem responses to environmental drivers. Herein\, we show the e
 xistence of non-linear responses of lakes biology and biogeochemistry at s
 easonal and centennial time-scales\, with crucial implications on lake eco
 logical vulnerability to climate change and cumulating environmental stres
 sors.
LOCATION:GR C0 01 https://plan.epfl.ch/theme/generalite_thm_v2?room=GR%20C
 0%2001&dim_floor=0&lang=en&dim_lang=en&tree_groups=centres_nevralgiques%2C
 acces%2Cmobilite_reduite%2Censeignement%2Ccommerces_et_services&tree_g
STATUS:CONFIRMED
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