Empirical Critical Loads of Atmospheric Nitrogen Deposition for Nutrient Enrichment and Acidification of Sensitive US Lakes

Aber, 2003, Is nitrogen deposition altering the nitrogen status of northeastern forests?, BioScience, 53, 375, 10.1641/0006-3568(2003)053[0375:INDATN]2.0.CO;2

Baker, 1996, Episodic acidification of small streams in the northeastern United States: Effects on fish populations, Ecological Applications, 6, 422, 10.2307/2269380

Baron, 2006, Hindcasting nitrogen deposition to determine an ecological critical load, Ecological Applications, 16, 433, 10.1890/1051-0761(2006)016[0433:HNDTDA]2.0.CO;2

Beem, 2010, Deposition of reactive nitrogen during the Rocky Mountain Airborne Nitrogen and Sulfur (RoMANS) study, Environmental Pollution, 158, 862, 10.1016/j.envpol.2009.09.023

BergstrÃm, 2010, The use of TN:TP and DIN:TP ratios as indicators for phytoplankton nutrient limitation in oligotrophic lakes affected by N deposition, Aquatic Sciences, 72, 277, 10.1007/s00027-010-0132-0

Bergström, 2006, Atmospheric nitrogen deposition has caused nitrogen enrichment and eutrophication of lakes in the Northern Hemisphere, Global Change Biology, 12, 635, 10.1111/j.1365-2486.2006.01129.x

Bernhardt, 2005, Can't see the forest for the stream? In-stream processing and terrestrial nitrogen exports, BioScience, 55, 219, 10.1641/0006-3568(2005)055[0219:ACSTFF]2.0.CO;2

Bobbink, 2010, Global assessment of nitrogen deposition effects on terrestrial plant diversity: A synthesis, Ecological Applications, 20, 30, 10.1890/08-1140.1

Burns, 2008, Critical loads as a policy tool for protecting ecosystems from the effects of air pollutants, Frontiers in Ecology and the Environment, 6, 156, 10.1890/070040

Charles, 1991, Acidic Deposition and Aquatic Ecosystems: Regional Case Studies, Springer, 10.1007/978-1-4613-9038-1_1

Das, 2005, Inferring sedimentary chlorophyll concentrations with reflectance spectroscopy: A novel approach to reconstructing historical changes in the trophic status of mountain lakes, Canadian Journal of Fisheries and Aquatic Sciences, 62, 1067, 10.1139/f05-016

Derry, 2007, Adaptive reversals in acid tolerance in copepods from lakes recovering from historical stress, Ecological Applications, 17, 1116, 10.1890/06-1382

Dixit, 2002, Diatom and chrysophyte functions and inferences of post-industrial acidification and recent recovery trends in Killarney lakes (Ontario, Canada), Journal of Paleolimnology, 27, 79, 10.1023/A:1013571821476

Dodds, 2003, Misuse of inorganic N and soluble reactive P concentrations to indicate nutrient status of surface waters, Journal of the North American Benthological Society, 22, 171, 10.2307/1467990

Dodds, 2010, Thresholds, breakpoints, and nonlinearity in freshwaters as related to management, Journal of the North American Benthological Society, 29, 988, 10.1899/09-148.1

Driscoll, 2001, Acidic deposition in the northeastern United States: Sources and inputs, ecosystem effects, and management strategies, BioScience, 51, 180, 10.1641/0006-3568(2001)051[0180:ADITNU]2.0.CO;2

Eilers, 1987, Characteristics of Lakes in the Western United States

Elser, 1990, Phosphorus and nitrogen limitation of phytoplankton growth in the freshwaters of North America: A review and critique of experimental enrichments, Canadian Journal of Fisheries and Aquatic Sciences, 47, 1468, 10.1139/f90-165

Elser, 2009, Shifts in lake N:P stoichiometry and nutrient limitation driven by atmospheric nitrogen deposition, Science, 326, 835, 10.1126/science.1176199

Fenn, 2003, Ecological effects of nitrogen deposition in the western United States, BioScience, 53, 404, 10.1641/0006-3568(2003)053[0404:EEONDI]2.0.CO;2

Galloway, 2003, The nitrogen cascade, BioScience, 53, 341, 10.1641/0006-3568(2003)053[0341:TNC]2.0.CO;2

Hettelingh, 2009, Critical Load, Dynamic Modelling and Impact Assessment in Europe: CCE Status Report 2008

Howarth, 2008, Coastal nitrogen pollution: A review of sources and trends globally and regionally, Harmful Algae, 8, 14, 10.1016/j.hal.2008.08.015

Interlandi, 1998, Assessing the effects of nitrogen deposition on mountain waters: A study of phytoplankton community dynamics, Water Science and Technology, 38, 139, 10.2166/wst.1998.0395

Jassby, 1994, Atmospheric deposition of nitrogen and phosphorus in the annual nutrient load of Lake Tahoe (California-Nevada), Water Resources Research, 30, 2207, 10.1029/94WR00754

Jeziorski, 2008, The widespread threat of calcium decline in fresh waters, Science, 322, 1374, 10.1126/science.1164949

Kelly, 1987, Prediction of biological acid neutralization in acid-sensitive lakes, Biogeochemistry, 3, 129, 10.1007/BF02185189

Lafrancois, 2004, Cumulative effects of nutrients and pH on the plankton of two mountain lakes, Canadian Journal of Fisheries and Aquatic Sciences, 61, 1153, 10.1139/f04-053

Linthurst, 1986, Characteristics of Lakes in the Eastern United States, Volume 1. Population Description and Physico-Chemical Relationships

McKnight, 1991, Phytoplankton dynamics in 3 Rocky Mountain lakes, Colorado, USA, Arctic and Alpine Research, 22, 264, 10.2307/1551589

Michel, 2006, Resource requirements of four freshwater diatom taxa determined by in situ growth bioassays using natural populations from alpine lakes, Hydrobiologia, 568, 235, 10.1007/s10750-006-0109-0

Murdoch, 1992, The role of nitrate in the acidification of streams in the Catskill Mountains of New York, Water Resources Research, 28, 2707, 10.1029/92WR00953

[NADP] National Atmospheric Deposition Program, 2010, Natural Resources Systems Programme (NRSP-3) Annual Report, NADP Program Office

Nydick, 2004, Nitrogen regulation of algal biomass, productivity, and composition in shallow mountain lakes, Snowy Range, Wyoming, USA, Canadian Journal of Fisheries and Aquatic Sciences, 61, 1256, 10.1139/f04-085

Pardo, 2011, Assessment of Nitrogen Deposition Effects and Empirical Critical Loads of Nitrogen for Ecoregions of the United States, 10.2737/NRS-GTR-80

Raddum, 1984, Acidification and early warning organisms in freshwater in western Norway, International Association of Theoretical and Applied Limnology, 22, 1973

Reuss, 1986, Acid Deposition and the Acidification of Soils and Waters, 10.1007/978-1-4419-8536-1

Saros, 2005, Resource requirements of Asterionella formosa and Fragilaria crotonensis in oligotrophic alpine lakes: Implications for recent phytoplankton community reorganizations, Canadian Journal of Fisheries and Aquatic Sciences, 62, 1681, 10.1139/f05-077

Saros, 2010, Critical nitrogen deposition loads in high-elevation lakes of the western US inferred from paleolimnological records, Water, Air, Soil Pollution, 216, 193, 10.1007/s11270-010-0526-6

Schaefer, 1990, Episodic acidification of Adirondack lakes during snowmelt, Water Resources Research, 26, 1639, 10.1029/WR026i007p01639

Sickman, 2002, Regional analysis of inorganic nitrogen yield and retention in high-elevation ecosystems of the Sierra Nevada and Rocky Mountains, Biogeochemistry, 57, 341, 10.1023/A:1016564816701

Sickman, 2003, Mechanisms underlying export of N from high-elevation catchments during seasonal transitions, Biogeochemistry, 64, 1, 10.1023/A:1024928317057

Skjelkvåle, 2005, Regional scale evidence for improvements in surface water chemistry 1990-2001, Environmental Pollution, 137, 165, 10.1016/j.envpol.2004.12.023

Smith, 2003, Natural background concentrations of nutrients in streams and rivers of the conterminous United States, Environmental Science and Technology, 37, 3039, 10.1021/es020663b

Stoddard, 1994, Long-term changes in watershed retention of nitrogen, Its causes and aquatic consequences, 10.1021/ba-1994-0237.ch008

Stoddard, 1995, Episodic acidification during snowmelt of high elevation lakes in the Sierra Nevada mountains of California, Water, Air, and Soil Pollution, 85, 353, 10.1007/BF00476854

Stoddard, 1996, The Temporally Integrated Monitoring of Ecosystems (TIME) project design 2, Detection of regional acidification trends. Water Resources Research, 32, 2529

Stoddard, 2006, Setting expectations for the ecological condition of streams: The concept of reference condition, Ecological Applications, 16, 1267, 10.1890/1051-0761(2006)016[1267:SEFTEC]2.0.CO;2

Sullivan, 2005, Surface water acidification responses and critical loads of sulfur and nitrogen deposition in Loch Vale watershed, Colorado, Water Resources Research, 41, W01021, 10.1029/2004WR003414

[USEPA] US Environmental Protection Agency, 2008, Integrated Science Assessment (ISA) for Oxides of Nitrogen and Sulfur-Ecological Criteria (Final Report), USEPA

[USEPA] US Environmental Protection Agency, 2009, Risk and Exposure Assessment for Review of the Secondary National Ambient Air Quality Standards for Oxides of Nitrogen and Oxides of Sulfur (Final Report)

Weathers, 2006, Empirical modeling of atmospheric deposition in mountainous landscapes, Ecological Applications, 16, 1590, 10.1890/1051-0761(2006)016[1590:EMOADI]2.0.CO;2

Wigington, 1996, Episodic acidification of small streams in the northeastern United States: Episodic response project, Ecological Applications, 6, 374, 10.2307/2269377

Williams, 2000, Critical loads for inorganic nitrogen deposition in the Colorado Front Range, USA, Ecological Applications, 10, 1648, 10.1890/1051-0761(2000)010[1648:CLFIND]2.0.CO;2

Wolfe, 2003, Recent ecological and biogeochemical changes in alpine lakes of Rocky Mountain National Park (Colorado, USA): A response to anthropogenic nitrogen deposition, Geobiology, 1, 153, 10.1046/j.1472-4669.2003.00012.x

Wright, 1993, RAIN project: Results after 8 years of experimentally reduced acid deposition to a whole catchment, Canadian Journal of Fisheries and Aquatic Sciences, 50, 258, 10.1139/f93-030

Wright, 2001, Trends in nitrogen deposition and leaching in acid-sensitive streams in Europe, Hydrology and Earth System Sciences, 5, 299, 10.5194/hess-5-299-2001

Yan, 2003, Developing conceptual frameworks for the recovery of aquatic biota from acidification, AMBIO, 32, 165, 10.1579/0044-7447-32.3.165