Kevin Bishop,^* Craig Allan,^** Lage Bringmark,^*** Edenise Garcia,^**** Sofie Hellsten,^***** Lars Högbom,^****** Kjell Johansson,^******* Anja Lomander,^******** Markus Meili,^********* John Munthe,^********** Mats Nilsson,^*********** Petri Porvari,^************ Ulf Skyllberg,^{*************} Rasmus Sørensen,^{**************} Therese Zetterberg,^{***************} Staffan Åkerblom<sup>****************


*</sup>Kevin Bishop is professor of environmental assessment at Swedish University of Agricultural Sciences. Research to distinguish human influence from natural variability in the surface waters of forested landscapes has led him to consider how silviculture influences mercury cycling. His address: Department of Aquatic Science and Assessment, Swedish University of Agricultural Sciences, P.O. Box 7050, SE-750 07 Uppsala, Sweden. kevin.bishop@vatten.slu.se
^**Craig Allan is an associate professor of earth sciences at the University of North Carolina. His research focuses on hydrological and biogeochemical processes in forested and urban environments. His address: Department of Geography and Earth Sciences, University of North Carolina–Charlotte, Charlotte, NC 28037, USA. cjallan@uncc.edu
^***Lage Bringmark is an associate professor of ecology at Swedish University of Agricultural Sciences. He is engaged in environmental monitoring in small forested catchments, with a special focus on accumulation, biological effects, and critical loads of atmospheric mercury in the soils. His address: Department of Aquatic Science and Assessment, Swedish University of Agricultural Sciences, P.O. Box 7050, SE-750 07 Uppsala, Sweden. Lage.Bringmark@vatten.slu.se
^****Edenise Garcia is The Nature Conservancy's coordinator of the REDD (Reduction of Emissions from Deforestation and Degradation) demonstration project for the Brazilian Amazon. Her address: The Nature Conservancy Cuiaba Office, Av. Historiador Rubens de Mendonça, 1894 Edifício Maruanã, Sala 1004, Bosque da Saúde, Cuiabá, MT, CEP 78050–400, Brazil. egarcia@TNC.org
^*****Sofie Hellsten is a scientist (PhD) at IVL Swedish Environmental Research Institute, Gothenburg, Sweden. Her research focuses on the environmental effects of forestry, climate change, and air pollution in forests. Her address: IVL Swedish Environmental Research Institute, P.O. Box 5302, SE-400 14 Göteborg, Sweden. sofie.hellsten@ivl.se
^******Lars Högbom is an associate professor in soil science and works at Skogforsk, The Forestry Research Institute of Sweden. His research focuses on the environmental effects of forestry, mainly with respect to nitrogen. His address: Skogforsk Uppsala Science Park, SE-751 83 Uppsala, Sweden. lars.hogbom@skogforsk.se
^*******Kjell Johansson is an associate professor in ecology and works at the Swedish University of Agricultural Sciences (SLU) and the Swedish Environmental Protection Agency (SEPA). His research focuses on effects of metals on the environment, especially the impact from air emissions of mercury on soils and waters. His address: Department of Aquatic Science and Assessment, Swedish University of Agricultural Sciences, P.O. Box 7050, SE-750 07 Uppsala, Sweden. kjell.johansson@vatten.slu.se
^********Anja Lomander has a PhD in forest soils and works at the Swedish Forest Agency as a soil specialist. Her work consists of linking research with forest management in order to decrease the effects of forestry on soil and water. Her address: Swedish Forest Agency, P.O. Box 343, SE-503 11 Borås, Sweden. anja.lomander@skogsstyrelsen.se
^*********Markus Meili is an associate professor of biogeochemistry at Stockholm University. His particular interest is in the coupled cycling of contaminants and nutrients in aquatic ecosystems. His address: Department of Applied Environmental Science (ITM), Stockholm University, SE-106 91 Stockholm, Sweden. Markus.Meili@itm.su.se
^**********John Munthe is head of the Department of Environmental Effects and Atmospheric Chemistry at the IVL Swedish Environmental Research Institute. His research on mercury covers many aspects of the use, releases, and environmental cycling of mercury, including how its biogeochemistry is influenced by forest management and climate change. His address: IVL Swedish Environmental Research Institute, P.O. Box 5302, SE400 14 Göteborg, Sweden. john.munthe@ivl.se
^***********Mats Nilsson is professor of biogeochemistry at Swedish University of Agricultural Sciences. His specialty is peatland soils and organic material, with a focus on carbon cycling. His address: Department of Forest Ecology and Management, Swedish University of Agricultural Sciences, SE-901 83 Umeå, Sweden. Mats.nilsson@seksko.slu.se
^************Petri Porvari has a PhD in environmental sciences and works as a senior research scientist at the Finnish Environment Institute (SYKE). His present research focuses on fish mercury modeling. His previous research includes Hg budgets for forested catchments and the impacts of forest management practices on Hg and MeHg outputs and cycling. His address: Finnish Environment Institute (SYKE), P.O. Box 140, FI-00251 Helsinki, Finland. petri.porvari@ymparisto.fi
^{*************}Ulf Skyllberg is professor in soil chemistry at Swedish University of Agricultural Sciences. The focus of his research is the links among chemical speciation, mobility, and bioavailability of mercury (and other trace metals) in soils, sediments, and waters. His address: Department of Forest Ecology and Management, Swedish University of Agricultural Sciences, SE-901 83 Umeå, Sweden. ulf.skyllberg@sek.slu.se
^{**************}Rasmus Sørensen is a PhD student at the Department of Aquatic Sciences and Assessment at Swedish University of Agricultural Sciences, Uppsala, Sweden. His focus is on mercury outputs from managed forest land and involves studies of forest hydrology. His address: Department of Aquatic Science and Assessment, Swedish University of Agricultural Sciences, P.O. Box 7050, SE-750 07 Uppsala, Sweden. rasmus.sorensen@vatten.slu.se
^{***************}Therese Zetterberg is a PhD student at the Department of Aquatic Sciences and Assessment at Swedish University of Agricultural Sciences, Uppsala, Sweden, and a scientist at IVL Swedish Environmental Research Institute in Gothenburg, Sweden. Her research is mainly focused on the effects of modern forest practices on soils and surface waters, i.e., clearance of old ditches and harvest of logging residues. Her address: IVL Swedish Environmental Research Institute, P.O. Box 5302, SE-400 14 Gothenburg, Sweden. therese.zetterberg@ivl.se
^{****************}Staffan Åkerblom is a postdoctoral researcher at Swedish University of Agricultural Sciences working on the cycling of mercury in the forest landscape. His address: Department of Forest Ecology and Management, Swedish University of Agricultural Sciences, SE-901 83 Umeå, Sweden. staffan.Åkerblom@seksko.slu.se