Browsing Faculté des arts et des sciences – Département de sciences biologiques by Author "MacMillan, Gwyneth A."
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Environmental drivers of rare earth element bioaccumulation in freshwater zooplankton
MacMillan, Gwyneth A.; Clayden, Meredith G.; Chételat, John; Richardson, Murray C.; Ponton, Dominic; Perron, Tania; Amyot, Marc (American Chemical Society, 2018-12-26)Human activities have resulted in significant release of rare earth elements (REEs) into the environment. However, the pathways of REEs from waters and soils into freshwater food webs remain poorly understood. Recent studies suggest that aquatic ... -
Fate and trophic transfer of rare earth elements in temperate lake food webs
Amyot, Marc; Clayden, Meredith G.; MacMillan, Gwyneth A.; Perron, Tania; Arscott-Gauvin, Alexandre (2017-05-05)Many mining projects targeting rare earth elements (REE) are in development in North America, but the background concentrations and trophic transfer of these elements in natural environments have not been well characterized. We sampled abiotic and food ... -
High methylmercury in Arctic and subarctic ponds is related to nutrient levels in the warming eastern Canadian Arctic
MacMillan, Gwyneth A.; Girard, Catherine; Chételat, John; Laurion, Isabelle; Amyot, Marc (2015-06)Permafrost thaw ponds are ubiquitous in the eastern Canadian Arctic, yet little information exists on their potential as sources of methylmercury (MeHg) to freshwaters. They are microbially active and conducive to methylation of inorganic mercury, ... -
À la chasse aux métaux traces dans un Nord canadien en évolution rapide : approches limnologiques, écologiques et collaborative = Hunting for trace metals in a rapidly changing North : limnological, ecological, and collaborative approaches
MacMillan, Gwyneth A. (2019-03-13)Actuellement, l’Arctique canadien subit de grands changements, tant climatiques que socio- environnementaux, auxquels s’ajoute une pression croissante d’y exploiter les ressources naturelles. Les écosystèmes arctiques étant d’importants indicateurs ...