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Controls on Methylmercury Concentrations in Lakes and Streams of Peatland-Rich Catchments Along a 1700 km Permafrost Gradient
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Permafrost thaw may increase the production of neurotoxic methylmercury (MeHg) in northern peatlands, but the downstream delivery of MeHg is uncertain. We quantified total mercury (THg) and MeHg...
Disconnectivity Matters: The Outsized Role of Small Ephemeral Wetlands in Landscape-scale Nutrient Retentions
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Wetlands protect downstream waters by filtering excess nitrogen (N) generated from agricultural and urban activities. Small ephemeral wetlands, also known as geographically isolated wetlands (GIWs)...
Large Stocks of Peatland Carbon and Nitrogen are Vulnerable to Permafrost Thaw
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Northern peatlands have accumulated large stocks of organic carbon (C) and nitrogen (N), but their spatial distribution and vulnerability to climate warming remain uncertain. Here, we used machine...
Meredith E. Theus
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Department of Ecology and Evolutionary Biology
Microtopography Matters: Belowground CH4 Cycling Regulated by Differing Microbial Processes in Peatland Hummocks and Lawns
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This resource is available on an external database and may require a paid subscription to access it. It is included on the CCLM to support our goal of capturing and sharing the breadth of all...
Submersed Macrophyte Density Regulates Aquatic Greenhouse Gas Emissions
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Shallow freshwaters release large amounts of greenhouse gases. These shallow waterbodies are often dominated by submersed plants, yet the role these plants have in affecting greenhouse gas release is...
The Boreal-Arctic Wetland and Lake Dataset
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Here we present the Boreal–Arctic Wetland and Lake Dataset (BAWLD), a land cover dataset based on an expert assessment, extrapolated using random forest modelling from available spatial datasets of...