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David R. S. Lean
Researcher at University of Ottawa
Publications - 144
Citations - 7748
David R. S. Lean is an academic researcher from University of Ottawa. The author has contributed to research in topics: Mercury (element) & Arctic. The author has an hindex of 48, co-authored 144 publications receiving 7330 citations. Previous affiliations of David R. S. Lean include University of Saskatchewan & Meteorological Service of Canada.
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Journal ArticleDOI
Bottom-up and top-down impacts on freshwater pelagic community structure'
TL;DR: Over the 7 yr data set, a strong negative correlation between numbers of piscivores and planktivores was found, a weaker correlation betweenNumbers of plankTivore numbers and zooplankton biomass, and no between—year correlation between zoopLankon biomass and chlorophyll a concentration were found.
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A synthesis of atmospheric mercury depletion event chemistry in the atmosphere and snow
Alexandra Steffen,Thomas A. Douglas,Marc Amyot,Parisa A. Ariya,Katrine Aspmo,Torunn Berg,Torunn Berg,Jan W. Bottenheim,S. Brooks,F. Cobbett,Ashu Dastoor,Aurélien Dommergue,Ralf Ebinghaus,Christophe Ferrari,Katarina Gårdfeldt,Michael Evan Goodsite,David R. S. Lean,Alexandre J. Poulain,C. Scherz,Henrik Skov,Jonas Sommar,Christian Temme +21 more
TL;DR: A review of the current understanding of AMDEs from field, laboratory and modeling work, how Hg cycles around the environment after AMDE, gaps in our current knowledge and the future impacts that AMDE may have on polar environments is presented in this article.
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Blue-green algae: their excretion of iron-selective chelators enables them to dominate other algae.
TL;DR: During blue-green algal blooms, other algae can be completely suppressed, and iron deprivation induces the production of hydroxamate chelators, which appear to be the agent suppressing other algae.
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Sunlight-induced formation of dissolved gaseous mercury in lake waters.
TL;DR: A positive relationship was found between photoinduced DGM production at different times of the year and incident radiation and removal of UV B light or addition of hydrogen peroxide during incubation did not result in significant changes in DGM levels.
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Abiotic methylation of mercury in the aquatic environment
TL;DR: Results of laboratory-based investigations of aqueous mercury reactions with some potential methyl donors, including MeCo(dmg)(2)(H2O), a simple model for methylcobalamin, various methyltin compounds and methyl iodide, are presented.