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Select Journal Articles, Reports, Book Chapters and Presentations

Click on the titles below to see the full citations for articles, reports, and presentations by E&S Environmental.  This list only includes publications since 2002.

Zarfos, M. R., G. B. Lawrence, C. Beier, P.D. Blair, T.C. McDonnell, T.J. Sullivan, M.T. Garrison-Johnston, M. Dovčiak. 2024. Environmental Change Drivers Reduce Sapling Layer Diversity in Sugar Maple-Beech Forests of Eastern North America. Ecosystems. https://doi.org/10.1007/s10021-024-00930-z

Tourville, J.C., M.R. Zarfos, G.B. Lawrence, T.C. McDonnell,T.J. Sullivan, and M. Dovčiak. 2023. Soil biotic and abiotic thresholds in sugar maple and American beech seedling establishment in forests of the northeastern United States. Plant Soil. https://doi.org/10.1007/s11104-023-06123-2.

McDonnell, T.C., J. Phelan, A.F. Talhelm, B.J. Cosby, C.T. Driscoll, T.J. Sullivan, and T. Greaver. 2023. Protection of forest ecosystems in the eastern United States from elevated atmospheric deposition of sulfur and nitrogen: A comparison of steady-state and dynamic model results. Environ. Pollut. https://doi.org/10.1016/j.envpol.2022.120887.

McDonnell, T.C., C.M. Clark, G.J. Reinds, T.J. Sullivan, and B. Knees. 2022. Modeled vegetation community trajectories: Effects from climate change, atmospheric nitrogen deposition, and soil acidification recovery. Environmental Advances 9:100271. https://doi.org/10.1016/j.envadv.2022.100271.

McDonnell, T.C., G.J. Reinds, G.W.W. Wamelink, P.W. Goedhart, M. Posch, T.J. Sullivan, and C.M. Clark. 2020. Threshold Effects of Air Pollution and Climate Change on Understory Plant Communities at Forested Sites in the Eastern United States. Environ. Pollut. 262. https://doi.org/10.1016/j.envpol.2020.114351

Shao, S., C.T. Driscoll, T.J. Sullivan, D.A. Burns, B.P. Baldigo, G.B. Lawrence, and T.C. McDonnell. 2020. The response of stream ecosystems in the Adirondack region of New York to historical and future changes in atmospheric deposition of sulfur and nitrogen. Sci. Total Environ. doi:org/10.1016/j.scitotenv.2020.137113.

Burns, D.A., T.C. McDonnell, K.C. Rice, G.B. Lawrence, and T.J. Sullivan. 2020. Chronic and episodic acidification of streams along the Appalachian Trail corridor, eastern United States. Hydrol. Process. 10.1002/hyp.13668 34:1498-1513.
Baldigo, B.P., S.D. George, T.J. Sullivan, C.T. Driscoll, D.A. Burns, S. Shao, and G.B. Lawrence. 2019. Probabilistic relations between acid-base chemistry and fish assemblages in streams of the western Adirondack Mountains, New York, USA. Canadian Journal of Fisheries and Aquatic Sciences.

Zarfos, M.R., M. Dovciak, G.B. Lawrence, T.C. McDonnell, and T.J. Sullivan. 2019. Plant richness and composition in hardwood forest understories vary along an acidic deposition and soil-chemical gradient in the northeastern United States. Plant Soil. https://doi.org/10.1007/s11104-019-04031-y

McDonnell, T.C., S. Belyazid, T.J. Sullivan, M. Bell, C. Clark, T. Blett, T. Evans, W. Cass, A. Hyduke, and H. Sverdrup. 2018. Vegetation dynamics associated with changes in atmospheric nitrogen deposition and climate in hardwood forests of Shenandoah and Great Smoky Mountains national parks, USA. Environ. Pollut. 237:662-674. doi.org/10.1016/j.envpol.2018.01.112.

McDonnell, T.C., T.J. Sullivan, and C.M. Beier. 2018. Influence of climate on long-term recovery of Adirondack Mountain lakewater chemistry from atmospheric deposition of sulfur and nitrogen. Adir. J. Environ. Stud. 22:20-45.

Timothy J.Sullivan, Charles T.Driscoll, Colin M.Beier, Dallas Burtraw, Ivan J.Fernandez, James N.Galloway, David A.Gay, Christine L.Goodale, Gene E.Likens, Gary M.Lovett, Shaun A.Watmough. 2018. Air pollution success stories in the United States: The value of long-term observations. Environmental Science & Policy. 84:69-73

McDonnell, T.C., S. Belyazid, T.J. Sullivan, M. Bell, C. Clark, T. Blett, T. Evans, W. Cass, A. Hyduke, and H. Sverdrup. 2018. Vegetation dynamics associated with changes in atmospheric nitrogen deposition and climate in hardwood forests of Shenandoah and Great Smoky Mountains national parks, USA. Environ. Pollut. 237:662-674.

McDonnell, T.C., G.J. Reinds, T.J. Sullivan, C.M. Clark, L.T.C. Bonten, J.P. Mol-Dijkstra, G.W.W. Wamelink, and M. Dovciak. 2018. Feasibility of coupled empirical and dynamic modeling to assess climate change and air pollution impacts on temperate forest vegetation of the eastern United States. Environ. Pollut. 234:902-914. doi.org/10.1016/j.envpol.2017.12.002.

Andrei G. Lapenis, Gregory B. Lawrence,  Alexander Buyantuev, Shiguo Jiang, Timothy J. SullivanTodd C. McDonnell, and Scott Bailey. Newly Identified Role of the Deciduous Forest Floor in the Timing of Green-Up: Edaphic Factors of Forest Phenology. 2017. Journal of Geophysical Research: Biogeosciences. 122 (11): 2876-2891.

Lawrence, G.B., T.C. McDonnellT.J. Sullivan, M. Dovciak, S.W. Bailey, M.R. Antidormi, and M.R. Zarfos. 2017. Soil base saturation combines with beech bark disease to influence composition and structure of sugar maple-beech forests in an acid rain-impacted region. Ecosystems 191:19-27. 10.1007/s10021-017-0186-0.

O’Dea, C., S. Anderson, T. Sullivan, D. Landers, and F. Casey. 2017. Impacts to ecosystem services from aquatic acidification: using FEGS-CS to understand the impacts of air pollution. Ecosphere 8(5):e01807. 10.1002/ecs2.1807.

Beier, C.M., J. Caputo, G.B. Lawrence, and T.J. Sullivan. 2016. Loss of ecosystem services due to chronic pollution of forests and surface waters in the Adirondack region (USA). J. Environ. Manage. DOI: 10.1016/j.jenvman.2016.12.069.

Caputo, J., C.M. Beier, T.J. Sullivan, and G.B. Lawrence. 2016. Modeled effects of soil acidification on long-term ecological and economic outcomes for managed forests in the Adirondack region (USA). Science of the Total Environment. 565:401-411.

Bishop, D.A., C.M. Beier, N. Pederson, G.B. Lawrence, J.C. Stella, and T.J. Sullivan. 2015. Regional growth decline of sugar maple (Acer saccharum) and its potential causes. Ecosphere 6(10):1-14.

McDonnell, T.C., M.R. Sloat, T.J. Sullivan, C.A. Dolloff, P.F. Hessburg, N.A. Povak, W.A Jackson, and C. Sams. 2015. Downstream warming and headwater acidity may diminish coldwater habitat in Southern Appalachian Mountain streams. Plos One. DOI:10.1371/journal.pone.0134757.

Zhou, Q., C.T. Driscoll, and T.J. Sullivan. 2015. Responses of 20 lake-watersheds in the Adirondack region of New York to historical and potential future acidic deposition. Sci. Total Environ. 511(0):186-194. http://dx.doi.org/10.1016/j.scitotenv.2014.12.044.

Zhou, Q., C.T. Driscoll, T.J. Sullivan, and A. Pourmokhtarian. 2015. Factors influencing critical and target loads for the acidification of lake-watersheds in the Adirondack region of New York. Biogeochemistry 124(1-3):353-369. 10.1007/s10533-01

Fenn, M.E., C.T. Driscoll, Q. Zhou, L.E. Rao, T. Meixner, E.B. Allen, F. Yuan, and T.J. Sullivan. 2015. Use of combined biogeochemical model approaches and empirical data to assess critical loads of nitrogen. In W. de Vries, J.-P. Hettelingh and M. Posch (Eds.). Critical Loads and Dynamic Risk Assessments. Nitrogen, Acidity and Metals in Terrestrial and Aquatic Ecosystems. Springer Netherlands. pp. 269-295.

Sutherland, J.W., F.W. Acker, J.A. Bloomfield, C.W. Boylen, D.F. Charles, R.A. Daniels, L.W. Eichler, J.L. Farrell, R.S. Feranec, M.P. Hare, S.L. Kanfoush, R.J. Preall, S.O. Quinn, H.C. Rowell, W.F. Schoch, W.H. Shaw, C.A. Siegfried, T.J. Sullivan, D.A. Winkler, and S.A. Nierzwicki-Bauer. 2015. Brooktrout Lake case study: biotic recovery from acid deposition 20 years after the 1990 Clean Air Act Amendments. Environ. Sci. Technol. 49(5):2665-2674. 10.1021/es5036865.
Sullivan, T.J. and J. Jenkins. 2014. The science and policy of critical loads of pollutant deposition to protect sensitive ecosystems in NY. Ann. NY Acad. Sci. 1313:57-68. doi: 10.1111/nyas.12407.

McDonnell, T.C., T.J. Sullivan, P.F. Hessburg, K.M. Reynolds, N.A. Povak, B.J. Cosby, W. Jackson, and R.B. Salter. 2014. Steady-state sulfur critical loads and exceedances for protection of aquatic ecosystems in the US southern Appalachian Mountains. J. Environ. Manage. 146:407-419.

Povak, N.A., P.F. Hessburg, T.C. McDonnell, K.M. Reynolds, T.J. Sullivan, R.B. Salter, and B.J. Cosby. 2014. Machine learning and linear regression models to predict catchment-level base cation weathering rates across the southern Appalachian Mountain region, USA. Water Resour. Res. DOI: 10.1002/2013WR014203.

McDonnell, T.C., S. Belyazid, T.J. Sullivan, H. Sverdrup, W.D. Bowman, and E.M. Porter. 2014. Modeled subalpine plant community response to climate change and atmospheric nitrogen deposition in Rocky Mountain National Park, USA. Environ. Pollut. 187:55-64.

Sullivan, T.J., G.B. Lawrence, S.W. Bailey, T.C. McDonnell, K.C. Weathers, and G.T. McPherson. 2013. Effects of acidic deposition and soil acidification on sugar maple trees in the Adirondack Mountains, New York. Environ. Sci. Technol. 10.1021/es401864w.

McDonnell, T.C., T.J. Sullivan, B.J. Cosby, W.A. Jackson, and K. Elliott. 2013. Effects of climate, land management, and sulfur deposition on soil base cation supply in national forests of the Southern Appalachian Mountains. Water Air Soil Pollut. 224:1733. DOI 10.1007/s11270-013-1733-8.

Povak, N.A, P.F. Hessburg, K.M. Reynolds, T.J. Sullivan., T.C. McDonnell, and R.B. Salter. 2013. Machine learning and hurdle models improve regional predictions of stream water acid neutralizing capacity. Water Resour. Res. doi: 10.1002/wrcr.20308.

Herlihy, A.T., J.B. Sobota, T.C. McDonnell, T.J. Sullivan, S. Lehmann, and E. Tarquinio. 2013. An a priori process for selecting candidate reference lakes for a national survey. Freshw. Sci. 32(2):385-396.

Lawrence, G.B.. I.J. Fernandez, D.D. Richter, D.S. Ross, P.W. Hazlett, S.W. Bailey, R. Oiumet, R.A.F. Warby, A.E. Johnson, H. Lin, J.M. Kaste, A.G. Lapenis, and T.J. Sullivan. 2013. Measuring environmental change in forest ecosystems by repeated soil sampling: a North American perspective. Journal of Environmental Quality. doi:10.2134/jeq2012.0378.

Sullivan, T.J. 2012. Combining ecosystem service and critical load concepts for resource management and public policy. Water 4:905-913.

Sullivan, T.J., B.J. Cosby, T.C. McDonnell, E. Porter, T. Blett, R. Haeuber, C.M. Huber, and J. Lynch. 2012. Critical loads of acidity to protect and restore acid-sensitive streams in Virginia and West Virginia. Water Air and Soil Pollution. 223:5759–5771. doi: 10.1007/s11270-012-1312-4.

Greaver, T.L., T.J. Sullivan, J.D. Herrick, M. Barber, J.S. Baron, B.J. Cosby, M. Deerhake, R. Dennis, J.J. D. Dubois, C. Goodale, A.T. Herlihy, G.B. Lawrence, L. Liu, J. Lynch, and K. Novak. 2012. Ecological effects of nitrogen and sulfur air pollution in the US: what do we know? Frontiers in Ecology and the Environment. 10(7):365-372 doi:10.1890/110049.

Sullivan, T.J., B.J. Cosby, C.T. Driscoll, T.C. McDonnell, A.T. Herlihy, and D.A. Burns. 2012. Target loads of atmospheric sulfur and nitrogen deposition for protection of acid sensitive aquatic resources in the Adirondack Mountains, New York. Water Resources Research. 48: WO 1547, doi:10.1029/2011WR011171

McDonnell, T.C., B.J. Cosby, and T.J. Sullivan. 2012. Regionalization of soil base cation weathering for evaluating stream water acidification in the Appalachian Mountains, USA. Environmental Pollution 162:338-344

Porter, E., H. Sverdrup, and T.J. Sullivan. 2012. Estimating and mitigating the impacts of climate change and air pollution on alpine plant communities in national parks. Park Science 28(2): 58-64.

Sullivan, T.J., B.J. Cosby, C.T. Driscoll, T.C. McDonnell, and A.T. Herlihy. 2011. Target loads of atmospheric sulfur deposition protect terrestrial resources in the Adirondack Mountains, New York against biological impacts caused by soil acidification. Journal of Environmental Studies and Sciences 1(4):301-314.

Sullivan, T.J., B.J. Cosby, and B. Jackson. 2011. Critical loads of atmospheric sulfur deposition for the protection and recovery of acid-sensitive streams in the Southern Blue Ridge Province. J. Environ. Manage. 92:2953-2960.

Sullivan, T.J., B.J. Cosby, B. Jackson, K.U. Snyder, and A.T. Herlihy. 2011. Acidification and prognosis for future recovery of acid-sensitive streams in the Southern Blue Ridge Province. Water, Air Soil Pollut. 219:11-26 (DOI 10.1007/s11270-010-0680-x).

Sverdrup, H., T.C. McDonnell, T.J. Sullivan, B. Nihlgård, S. Belyazid, B. Rihm, E. Porter, W.D. Bowman, and L. Geiser. 2011. Testing the feasibility of using the ForSAFE-VEG model to map the critical load of nitrogen to protect plant biodiversity in the Rocky Mountains region, USA. Water Air Soil Pollut. DOI 10.1007/s11270-011-0865-y.

McDonnell, T.C., B.J. Cosby, T.J. Sullivan, S.G. McNulty, E.C. Cohen. 2010. Comparison among model estimates of critical loads of acidic deposition using different sources and scales of input data. Environ. Pollut. 158:2934-2939

Nierzwicki-Bauer, S.A., C.W. Boylen, L.W. Eichler, J.P. Harrison, J.W. Sutherland, W. Shaw, R.A. Daniels, D.F. Charles, F.W. Acker, T.J. Sullivan, B. Momen, and P. Bukaveckas. 2010. Acidification in the Adirondacks: Defining the biota in trophic levels of 30 chemically diverse acid-impacted lakes. Environ. Sci. & Technol. 44:5721-5727.
Sullivan, T.J., B.J. Cosby, J.R. Webb, R.L. Dennis, A.J. Bulger, F.A. Deviney, Jr. 2008. Streamwater acid-base chemistry and critical loads of atmospheric sulfur deposition in Shenandoah National Park, Virginia. Environ. Monit. Assess. 137:85-99. DOI 10:1007/s10661-007-9731-1

Zhai, J., C. T. Driscoll, T. J. Sullivan, and B. J. Cosby. 2008. Regional application of the PnET-BGC model to assess historical acidification of Adirondack lakes. Water Resour. Res., 44, W01421, doi:10.1029/2006WR005532.

McNeil, B.E., J.M. Read, T.J. Sullivan, T.C. McDonnell, I. J. Fernandez, and C.T. Driscoll. 2008. The spatial pattern of nitrogen cycling in the Adirondack Park, New York. Ecol. Appl. 18:438–452.

Sullivan, T.J., B.J. Cosby, A.T. Herlihy, C.T. Driscoll, I.J. Fernandez, T.C. McDonnell, C.W. Boylen, S.A. Nierzwicki-Bauer, and K.U. Snyder. 2007. Assessment of the extent to which intensively-studied lakes are representative of the Adirondack region and response to future changes in acidic deposition. Water Air Soil Pollut. 185:279-291.

Sullivan, T.J., J.A. Moore, D.R. Thomas, E. Mallery, K.U. Snyder, M. Wustenberg, J. Wustenberg, S.D. Mackey, and D.L. Moore. 2007. Efficacy of vegetated buffers in preventing transport of fecal coliform bacteria from pasturelands. Environ. Mgmt. 40:958-965.

Sullivan, T.J., J.R. Webb, K.U. Snyder, A.T. Herlihy, and B.J. Cosby. 2007. Spatial distribution of acid-sensitive and acid-impacted streams in relation to watershed features in the southern Appalachian Mountains. Water Air Soil Pollut. 182:57-71.

McNulty, S.G., E.C. Cohen, J.A. Moore Meyers, T.J. Sullivan, and H. Li. 2007. Estimates of critical acid loads and exceedances for forest soils across the conterminous United States. Environ. Poll. 149(3):281-292.

Sullivan, T.J., I.J. Fernandez, A.T. Herlihy, C.T. Driscoll, T.C. McDonnell, N.A. Nowicki, K.U. Snyder, and J.W. Sutherland. 2006. Acid-base characteristics of soils in the Adirondack Mountains, New York. Soil Sci. Soc. Amer. J. 70:141-152.

Sullivan, T.J., M. Wustenberg, K.U. Snyder, J. Moore, D. Moore, E. Gilbert, and E. Mallery. 2006. Relationship between size of vegetated buffers and transport of fecal coliform bacteria from pasturelands treated with dairy cow manure. Abstract. J. Dairy Sci. 89 (Suppl. 1): Abstract 298.

Sullivan, T.J., B.J. Cosby, K.A. Tonnessen, and D.W. Clow. 2005. Surface water acidification responses and critical loads of sulfur and nitrogen deposition in Loch Vale Watershed, Colorado. Water Resour. Res. 41:W01021, doi:10.1029/2004WR003414.

Sullivan, T.J., K. U. Snyder, E. Gilbert, J.M. Bischoff, M. Wustenberg, J. A. Moore, and D. Moore.  2005. Assessment of water quality in association with land use in the Tillamook Bay Watershed, Oregon. Water Air Soil Pollut. 161:3-23.

Sullivan, T.J., M.C. Saunders, B.L. Nash, K.A. Tonnessen, and B.J. Miller 2005. Application of a regionalized knowledge-based model for classifying the impacts of nitrogen, sulfur, and organic acids on lakewater chemistry. Knowledge Based Systems. 18(1):55-68.

Saunders, M.C., T.J. Sullivan, B.L. Nash, K.A. Tonnessen, and B.J. Miller. 2005. A knowledge-based approach for classifying lake water chemistry. Knowledge Based Systems. 18(1): 47-54.

Sullivan, T.J., B.J. Cosby, A.T. Herlihy, J.R. Webb, A.J. Bulger, K.U. Snyder, P.F. Brewer, E.H. Gilbert, and D.L. Moore. 2004. Regional model projections of future effects of sulfur and nitrogen deposition on streams in the southern Appalachian Mountains. Water Resour. Res. 40(2), W02101 doi:10.1029/2003WR001998.

Sullivan, T.J., M. Wustenberg, J. A. Moore, K. U. Snyder, E. Gilbert, D. Moore, and E. Mallery. 2004. Riparian plantings and fencing improve water quality in Tillamook River Watershed (Oregon). Ecolog. Restor. 22(2):138-140.
McDonnell, T.C., P. Gruendike, M. Deas, and D. Ebert. 2023. Evaluation of Thermal Refugia and Habitat Restoration Opportunities of the Klamath River between J.C. Boyle Dam and Copco Reservoir. Prepared for PacifiCorp. 101 pp.

McDonnell, T., M. Diabat, and C. Miwa. 2022. Upper Klamath River - Thermal Infrared Airborne Imagery - Technical Data Report. Prepared for PacifiCorp. 38 pp. July 21. Available online: https://www.pacificorp.com/content/dam/pcorp/documents/en/pacificorp/energy/hydro/klamath-river/khsa-implementation/technical-documents/2022-01-14_Thermal-Imaging-Tech-Data-Rpt-KL.pdf.

McMurray, J.A., T.C. McDonnell, A.E. Mebane, L.H. Pardo. 2021. Assessment of atmospheric nitrogen and sulfur deposition critical loads for aquatic and terrestrial resources on National Forest System lands in the Intermountain Region. Gen. Tech. Rep. NRS-204. Madison, WI: U.S. Department of Agriculture, Forest Service, Northern Research Station. 308 p. https://doi.org/10.2737/NRS-GTR-204.

Lynch, J.A., Phelan, J., Pardo, L.H., McDonnell, T.C., Clark, C.M., and Bell, M.D. 2020. Detailed Documentation of the National Critical Load Database (NCLD) for U.S. Critical Loads of Sulfur and Nitrogen, version 3.1, National Atmospheric Deposition Program, Wisconsin State Laboratory of Hygiene, Madison, WI.

Chione, A., T. McDonnell, N. Rudh, and T. Spoerer, R. Flitcroft, J. Armstrong, B. Hansen, and M. Sloat. 2020. Field Investigation to Support Coho Salmon Research in the Tahkenitch Lake Watershed. Report Prepared for USDA Forest Service. E&S Environmental Chemistry, Inc., Corvallis, OR.

Driscoll, C.T., T.J. Sullivan, B.P. Baldigo, D.A. Burns. S. Shao. T.C. McDonnell, and G.B. Lawrence. 2020. Responses of Streams in the Adirondack Mountains to Changes in Atmospheric Deposition of Sulfur and Nitrogen: Past and Future Acidification and Target Loads of Deposition to Promote Resource Recovery. Report Number 20-19. New York State Energy Research and Development Authority, Albany, NY.

McDonnell, T.C., T.J. Sullivan, P.B. Woodbury, J.L. Wightman, G.M. Domke, C.M. Beier, and C. Trettin. 2020. Sources and Sinks of Major Greenhouse Gases Associated with New York State’s Natural and Working Lands: Forests, Farms, and Wetlands. Report Number 20-06. New York State Energy Research and Development Authority, Albany, NY.

McDonnell, T.C., T.J. Sullivan, B. Knees, M. Bell, and E. Felker-Quinn. 2020. Intermodel Comparison of Atmospheric Nitrogen Deposition Estimates for the Conterminous United States and Critical Load Exceedance for Selected National Parks. Natural Resource Report NPS/NRSS/ARD/NRR—2020/2125. National Park Service, Fort Collins, Colorado.

Lawrence, G.B., M.R. Antidormi, T.C. McDonnell, T.J. Sullivan, and S.W. Bailey. 2020. Adirondack New York soil chemistry data, 1992-2017. U.S. Geological Survey data release, https://doi.org/10.5066/P9YAWR0N
McDonnell, T.C., T.J. Sullivan, and D.L. Moore. 2019. Critical Loads of Atmospheric Nitrogen and Sulfur Deposition for Protection of Sensitive Aquatic and Terrestrial Resources in the Intermountain Region of the USDA Forest Service. Report Prepared for the USDA Forest Service. E&S Environmental Chemistry, Inc., Corvallis, OR.

McDonnell, T.C., J. Aherne, T.J. Sullivan, C. Barton, C. Cotton, and B. Jackson. 2019. Variation in Forest Soil-Nutrient Availability: Dynamic Model Estimates of Past and Future Conditions at Two Sites in the Daniel Boone National Forest, Kentucky, USA. Report Prepared for USDA Forest Service. E&S Environmental Chemistry, Inc., Corvallis, OR.

Lynch, J.A., J. Phelan, L. Pardo, T. McDonnell, and C.M. Clark. 2019. Detailed Documentation of the National Critical Load Database (NCLD) for U.S. Critical Loads of Sulfur and Nitrogen, Version 3.1. National Atmospheric Deposition Program, Madison, WI.

McDonnell, T.C., W.A. Jackson, B.J. Cosby, and T.J. Sullivan. 2018. Atmospheric Deposition Effects Modeling for Resource Management on Southern Appalachian National Forests. Final Report prepared for USDA Forest Service – Asheville, NC. E&S Environmental Chemistry, Inc., Corvallis, OR.

Sullivan, T.J., M.R. Zarfos, M. Dovciak, T.C. McDonnell, and G.B. Lawrence. 2018. Effects of Acid Deposition on the Biodiversity of Forest Understory Plant Communities in the Northern Hardwood Forests of the Adirondack Mountain Region. Final Technical Report 18-17.  New York State Energy Research and Development Authority (NYSERDA), Albany, NY.

Lawrence, G.B., T.J. Sullivan, T.C. McDonnell, M. Dovciak, S.W. Bailey, M.R. Antidormi, and M.R. Zarfos. 2017. Soil Acidification and Beech Bark Disease: Influencing the Composition and Structure of Sugar Maple/Beech Forests. Summary Report 17-26 prepared for the New York State Energy Research and Development Authority. E&S Environmental Chemistry, Inc., Corvallis, OR.

Sullivan, T.J., M.R. Zarfos, M. Dovciak, T.C. McDonnell, and G.B. Lawrence. 2017. Effects of Acid Deposition on the Biodiversity of Forest Understory Plant Communities in the Northern Hardwood Forests of the Adirondack Mountain Region. Final Technical Report.  New York  State Energy Research and Development Authority (NYSERDA), Albany, NY.

Sullivan, T.J. 2016. Air Quality Related Values (AQRVs) in National Parks. Effects from Ozone; Visibility Reducing Particles; and Atmospheric Deposition of Acids, Nutrients and Toxics. Natural Resource Report NPS/ NRSS/ARD/NRR—2016/1196. National Park Service, Fort Collins, Colorado.

Sullivan, T.J., T.C. McDonnell, D.L. Moore, and M.G. Barna. 2016. Mapping of Nitrogen Critical Loads for Selected National Parks in the Western United States. Natural Resource Report NPS/NRSS/ARD/NRR—2016/1286. National Park Service, Fort Collins, Colorado.

Burns, D.A. and T.J. Sullivan. 2015. Critical Loads of Atmospheric Deposition to Adirondack Lake Watersheds: A Guide for Policymakers. New York State Energy Research and Development Authority, Albany, NY.

Lawrence, G.B., T.J. Sullivan, D.A. Burns, S.W. Bailey, B. J. Cosby, M. Dovciak, H.A. Ewing, T.C. McDonnell, R. Minocha, R. Riemann, J. Quant , K.C. Rice, J. Siemion, K. Weathers. 2015. Acidic Deposition along the Appalachian Trail Corridor and its Effects on Acid-Sensitive Terrestrial and Aquatic Resources. Results of the Appalachian Trail MEGA-Transect Atmospheric Deposition Effects Study. Natural Resource Report NPS/NRSS/ARD/NRR—2015/996. National Park Service, Fort Collins, CO.

Sullivan, T.J., B.J. Cosby, C.T. Driscoll, T.C. McDonnell, A.T. Herlihy, and D.A. Burns. 2014. Critical Loads of Sulfur and Nitrogen for Protection of Acid Sensitive Aquatic and Terrestrial Resources in the Adirondack Mountains. Final Report to the New York State Energy Research and Development Authority (NYSERDA).  E&S Environmental Chemistry, Corvallis, OR.

McDonnell, T.C., and T.J. Sullivan. 2014. Comparison of Regional Stream ANC Predictions for the George Washington National Forest Using Spatial and Non-Spatial Regression Modeling. Final Report prepared for USDA Forest Service, Asheville, NC. E&S Environmental Chemistry, Inc., Corvallis, OR.

McDonnell, T. C. and T. J. Sullivan. 2014. Total Atmospheric Nitrogen and Sulfur Deposition in Forest Service Wildernesses and National Forests Throughout the Conterminous United States. Final Report prepared for USDA Forest Service, Asheville, NC. E&S Environmental Chemistry, Inc., Corvallis, OR.

Sullivan, T.J. and T.C. McDonnell. 2013. Mapping of Nutrient-Nitrogen Critical Loads for Selected National Parks in the Intermountain West and Great Lakes Regions. Report prepared for the National Park Service, Air Resources Division. E&S Environmental Chemistry, Inc., Corvallis, OR.

Sullivan, T.J., G.B. Lawrence, S.W. Bailey, T.C. McDonnell, and G.T. McPherson. 2013. Effects of Acidic Deposition and Soil Acidification on Sugar Maple Trees in the Adirondack Mountains, New York. NYSERDA Report No. 13-04. New York State Energy Research and  Development Authority, Albany, NY.

Sullivan, T.J., J.R. Webb, A.T. Herlihy, and G.B. Lawrence. 2012. Section 1. Water Chemistry Field Sampling Protocols. In: Sullivan, T.J. (Editor). USDA Forest Service National Protocols for Sampling Air Pollution- Sensitive Waters. General Technical Report RMRS-GTR-278WWW. USDA Forest Service, Rocky Mountain Research Station, Ft. Collins, CO.

Lawrence, G.B., J.R. Webb, T.J. Sullivan, and A.T. Herlihy. 2012. Section 2. Laboratory Analysis Protocols. In: Sullivan, T.J. (Editor). USDA Forest Service National Protocols for Sampling Air Pollution- Sensitive Waters. General Technical Report RMRS-GTR-278WWW. USDA Forest Service, Rocky Mountain Research Station, Ft. Collins, CO.

Herlihy, A.T., T.J. Sullivan, G.B. Lawrence, and J.R. Webb. 2012. Section 3. Quality Assurance/ Quality Control Protocols. In: Sullivan, T.J. (Editor). USDA Forest Service National Protocols for Sampling Air Pollution- Sensitive Waters. General Technical Report RMRS-GTR-278WWW. USDA Forest Service, Rocky Mountain Research Station, Ft. Collins, CO.

Sullivan, T.J., A.T. Herlihy, G.B. Lawrence, and J.R. Webb. 2012. Section 4. Data Analysis Protocols. In: Sullivan, T.J. (Editor). USDA Forest Service National Protocols for Sampling Air Pollution- Sensitive Waters. General Technical Report RMRS-GTR-278WWW. USDA Forest Service, Rocky Mountain Research Station, Ft. Collins, CO.

Herlihy, A.T. and T.J. Sullivan. 2012. Section 5. Aquatic Biota Field Sampling Protocols. In: Sullivan, T.J. (Editor). USDA Forest Service National Protocols for Sampling Air Pollution- Sensitive Waters. General Technical Report RMRS-GTR-278WWW. USDA Forest Service, Rocky Mountain Research Station, Ft. Collins, CO.

Sullivan, T.J. and G.B. Lawrence. 2012. Section 6. Transition Plan. In: Sullivan, T.J. (Editor). USDA Forest Service National Protocols for Sampling Air Pollution- Sensitive Waters. General Technical Report RMRS-GTR-278WWW. USDA Forest Service, Rocky Mountain Research Station, Ft. Collins, CO.

Sullivan, T.J. 2012. Section 7. Training Plan. In: Sullivan, T.J. (Editor). USDA Forest Service National Protocols for Sampling Air Pollution- Sensitive Waters. General Technical Report RMRS-GTR-278WWW. USDA Forest Service, Rocky Mountain Research Station, Ft. Collins, CO.

Sullivan, T.J. and T.C. McDonnell. 2012. Application of Critical Loads and Ecosystem Services Principles to Assessment of the Effects of Atmospheric Sulfur and Nitrogen Deposition on Acid-Sensitive Aquatic and Terrestrial Resources. Report prepared for the U.S. Environmental Protection Agency in association with Systems Research and Applications, Corp. E&S Environmental Chemistry, Inc., Corvallis, OR.

Lawrence, G.B., T.J. Sullivan, K.C. Weathers, B.J. Cosby, and T.C. McDonnell. 2011. Comparison of Methods for Estimating Critical loads of Acidic Deposition in the Western Adirondack Region of New York. Final Report 11-13. Prepared for the New York State Energy Research and Development Authority. E&S Environmental Chemistry, Inc., Corvallis, OR.

Sullivan, T. J., G. T. McPherson, T. C. McDonnell, S. D. Mackey, and D. Moore. 2011. Evaluation of the sensitivity of inventory and monitoring national parks to acidification effects from atmospheric sulfur and nitrogen deposition. Natural Resource Reports NPS/NRPC/ARD/NRR—2011/349-382. National Park Service, Denver, Colorado.

Sullivan, T.J., T. C. McDonnell, G. T. McPherson, S. D. Mackey, and D. Moore. 2011. Evaluation of the sensitivity of inventory and monitoring national parks to nutrient enrichment effects from atmospheric nitrogen deposition. Natural Resource Reports NPS/NRPC/ARD/NRR—2011/302 to 2011/334. National Park Service, Denver, Colorado.

Sullivan, T.J., B.J. Cosby, and T.C. McDonnell. 2010. Aquatic Critical Loads and Exceedances in Acid-Sensitive Portions of Virginia and West Virginia. Results of Southeastern Multiagency Critical Loads Research Project. Report prepared for National Park Service, U.S. Environmental Protection Agency, USDA Forest Service, and U.S. Geological Survey. E&S Environmental Chemistry, Inc., Corvallis, OR.
E&S Environmental Chemistry, Inc. (including T.J. Sullivan). 2009. Alpine Vegetation Workshop: Response of Alpine and Subalpine Plant Species to Changes in Atmospheric N Deposition. Final Report. Held November 6-7, 2008 in Lakewood, CO. Sponsored by National Park Service and U.S. Environmental Protection Agency.

U.S. Environmental Protection Agency (T.J. Sullivan, contributor). 2009. Integrated Science Assessment for Particulate Matter. Final Report. ISA: EPA/600/R-08/139F. U.S. Environmental Protection Agency, Washington, DC.

U.S. Environmental Protection Agency (T.J. Sullivan, contributor). 2008. Integrated Science Assessment (ISA) for Oxides of Nitrogen and Sulfur Ecological Criteria (Final Report). Report No. EPA/600/R-08/082F. U.S. Environmental Protection Agency, Washington, DC.

Sullivan, T.J., B.J. Cosby, K.U. Snyder, A.T. Herlihy, B. Jackson. 2007. Model-Based Assessment of the Effects of Acidic Deposition on Sensitive Watershed Resources in the National Forests of North Carolina, Tennessee, and South Carolina. Final report prepared for USDA Forest Service, Asheville, NC. E&S Environmental Chemistry, Inc., Corvallis, OR.

Sullivan, T.J., A.T. Herlihy. 2007. Air Quality Related Values and Development of Associated Protocols for Evaluation of the Effects of Atmospheric Deposition on Aquatic and Terrestrial Resources on Forest Service Lands. Final report prepared for the U.S.D.A Forest Service.

Sullivan, T.J. 2007. What’s up with the Air? Shenandoah National Park. National Park Service, Luray, VA.

Sullivan, T.J., C.T. Driscoll, B.J. Cosby, I.J. Fernandez, A.T. Herlihy, J. Zhai, R. Stemberger, K.U. Snyder, J.W. Sutherland, S.A. Nierzwicki-Bauer, C.W. Boylen, T.C. McDonnell, and N.A. Nowicki. 2006. Assessment of the Extent to Which Intensively-Studied Lakes are Representative of the Adirondack Mountain Region. Final Report 06-17. New York State Energy Research and Development Authority, Albany, NY.

Sullivan, T.J., K.U. Snyder, S. Mackey, D.L. Moore, J.M. Sullivan, L.C. Sullivan, J. A. Moore, D. Thomas, E. Mallery, M. Wustenberg, and J. Wustenberg. 2006. Evaluation of the Effects of Edge-of-Field Grass and Shrub Filter Strips on Fecal Coliform Bacteria Transport in an Agricultural Setting. Final report prepared for Tillamook Estuaries Partnership, Garibaldi, OR by E&S Environmental Chemistry, Inc., Corvallis, OR.

Snyder, K., T. Sullivan, D. Moore, and R. Raymond. 2006. Lower Umpqua River Watershed Assessment. Prepared for the Umpqua Basin Watershed Council. E&S Environmental Chemistry, Inc., Corvallis, OR.

Snyder, K., T. Sullivan, D. Moore, and R. Raymond. 2006. Mill Creek Watershed Assessment. Prepared for the Umpqua Basin Watershed Council. E&S Environmental Chemistry, Inc., Corvallis, OR.

Snyder, K., T. Sullivan, D. Moore, and R. Raymond. 2006. Middle Umpqua River Watershed Assessment. Prepared for the Umpqua Basin Watershed Council. E&S Environmental Chemistry, Inc., Corvallis, OR.

Snyder, K., T. Sullivan, D. Moore, and R. Raymond. 2006. Upper Umpqua River Watershed Assessment. Prepared for the Umpqua Basin Watershed Council. E&S Environmental Chemistry, Inc., Corvallis, OR.

Sullivan, T.J. and B.J. Cosby. 2004. Aquatic critical load development for the Monongahela National Forest, West Virginia. Report Prepared for USDA Forest Service, Monongahela National Forest, Elkins, WV. E&S Environmental Chemistry, Inc., Corvallis, OR.

Webb, J.R., T.J. Sullivan, and B. Jackson. 2004. Assessment of Atmospheric Deposition Effects on National Forests. Protocols for Collection of Supplemental Stream Water and Soil Composition Data for the MAGIC Model.  Report prepared for USDA Forest Service, Asheville, NC. E&S Environmental Chemistry, Inc., Corvallis, OR.

Sullivan, T.J., B.J. Cosby, J.A. Lawrence, R.L. Dennis, K. Savig, J.R. Webb, A.J. Bulger, M. Scruggs, C. Gordon, J. Ray, E.H. Lee, W.E. Hogsett, H. Wayne, D. Miller, and J.S. Kern. 2003. Assessment of Air Quality and Related Values in Shenandoah National Park. Technical Report NPS/NERCHAL/NRTR-03/090. U.S. Department of the Interior, National Park Service, Northeast Region, Philadelphia, PA.

Snyder, K.U., T.J. Sullivan, D.L. Moore, R.B. Raymond, and E.H. Gilbert. 2003. Trask River Watershed Analysis. Report submitted to Oregon Department of Forestry and U.S. Department of Interior, Bureau of Land Management. E&S Environmental Chemistry, Inc., Corvallis, OR.

Sullivan, T.J. and B.J. Cosby. 2002. Critical loads of sulfur deposition to protect streams within Joyce Kilmer And Shining Rock Wilderness Areas from future acidification. Report prepared for USDA Forest Service, Asheville, NC. E&S Environmental Chemistry, Inc., Corvallis, OR.

Sullivan, T.J., D.W. Johnson, and R. Munson. 2002. Assessment of Effects of Acid Deposition on Forest Resources in the Southern Appalachian Mountains. Report prepared for the Southern Appalachian Mountains Initiative (SAMI). E&S Environmental Chemistry, Inc., Corvallis, OR.

Sullivan, T.J., B.J. Cosby, J.R. Webb, K.U. Snyder, A.T. Herlihy, A.J. Bulger, E.H. Gilbert, and D. Moore. 2002. Assessment of the Effects of Acidic Deposition on Aquatic Resources in the Southern Appalachian Mountains. Report prepared for the Southern Appalachian Mountains Initiative (SAMI). E&S Environmental Chemistry, Inc., Corvallis, OR.

Sullivan, T.J., M. Wustenberg, K.U. Snyder, J. Moore, D. Moore, E. Gilbert, and E. Mallery. 2002. Remediation of Agricultural Contributions of Fecal Coliform Bacteria, Sediment, and Heat in the Tillamook Basin: Final Report and Conclusions of the Beaver Creek Project. E&S Environmental Restoration, Inc., Corvallis, OR.

Sullivan, T.J., E.H. Gilbert, and K.U. Snyder. 2002. Results of storm-based monitoring of water quality In the Tillamook, Kilchis, Trask, and Wilson Rivers, Tillamook Basin, Oregon from 1996 to 2002. State of the Bay Report. E&S Environmental Chemistry, Inc., Corvallis, OR.

Snyder, K.U., T.J. Sullivan, R.B. Raymond, D. Moore, and E. Gilbert. 2002. North Santiam River Watershed Assessment. E&S Environmental Chemistry, Inc., Corvallis, OR.

Snyder, K.U., T.J. Sullivan, R.B. Raymond, E. Gilbert, and D. Moore. 2002. Necanicum River Watershed Assessment. E&S Environmental Chemistry, Inc., Corvallis, OR.

Sullivan, T.J., D.L. Peterson, C.L. Blanchard, K. Savig, and D. Morse. 2001. Assessment of Air Quality and Air Pollutant Impacts in Class I National Parks of California. NPS D-1454. U.S. Dept. of the Interior, National Park Service, Air Resources Division.

Sullivan, T.J., J.M. Bischoff, K.U. Snyder, R.B. Raymond, S. White, and S.K. Binder. 2001. Wilson River Watershed Assessment. E&S Environmental Chemistry, Inc., Corvallis, OR.

Snyder, K.U., T.J. Sullivan, R.B. Raymond, J.M. Bischoff, S. White, and S.K. Binder. 2001. Miami River Watershed Assessment. E&S Environmental Chemistry, Inc., Corvallis, OR.

Cosby, B.J. and T.J. Sullivan. 2001. Quantification of dose-response relationships and critical loads of sulfur and nitrogen for six headwater catchments in Rocky Mountain, Grand Teton, Sequoia, and Mount Rainier National Parks. Report 97-15-01. E&S Environmental Chemistry, Inc., Corvallis, OR.
McDonnell, T.C., M.D. Bell, E. Felker-Quinn, A. Witt. Exceedance of Critical Loads of Nitrogen and Sulfur Deposition across National Parks: Interactive Web Mapping. Presentation for National Atmospheric Deposition Program (NADP) Critical Loads of Atmospheric Deposition (CLAD) Spring 2024 Meeting, May 1, 2024.

McDonnell, T., M. Bell, E. Felker-Quinn. Climate change and air pollution effects on vegetation response in U.S. National Parks. Presentation for National Atmospheric Deposition Program (NADP) Fall 2023 Meeting, October 25, 2023.

McDonnell, T.C., P. Gruendike, M. Deas, D. Ebert. Effects of J.C. Boyle Dam Removal on Thermal Refugia and Implications for Habitat Restoration Priorities. Presentation for Riverine Symposium, March 22, 2023.

McDonnell, T., M. Bell, C. Clark, J. Cosby, C. Driscoll, T. Greaver, B. Knees, J. Phelan, G.J. Reinds, T. Sullivan, A. Talhelm. Climate change and air pollution effects on soil and vegetation of the United States. Presentation for National Atmospheric Deposition Program (NADP) Fall 2022 Meeting, November 17, 2022.

McDonnell, T., D. Ebert. Thermal Infrared Data Collection on the Klamath River – J.C. Boyle Dam to Copco Reservoir. Presentation for Klamath Basin Monitoring Program Meeting June 16, 2022.

McDonnell, T., M. Diabat. Thermal Infrared Imagery Assessment of the Klamath River between J.C. Boyle and Copco Reservoirs. Presentation for Klamath Hydroelectric Project Interim Measure Implementation Committee (IMIC) Meeting Oct. 21, 2021.

Clark, C., J. Phelan, M. Bell, R. Sabo, K. Austin, G. Martin, J. Herrick, K. Novak, J. T. Smith, T. Greaver, R. Dalton, J. Miller, T. McDonnell, L. Pardo, N. Pavlovic, C. Driscoll. Recent advances in critical loads research from the US-EPA’S Office of Research and Development. Presentation for National Atmospheric Deposition Program (NADP) Fall 2021 Meeting Oct. 25-29, 2021.

Clark, C., K. Horn, T. McDonnell, S. Simkin, C. Driscoll, N. Pavlovic, L. Pardo, K. Wilkins, J. Aherne, M. Bell. Recent advances in Critical Loads research from the US-EPA’s Office of Research and Development. International Cooperative Programme on Modelling and Mapping of Critical Levels & Loads and Air Pollution Effects, Risks and Trends (ICP M&M) 36th Task Force Meeting, April 20, 2021. Online meeting.

McDonnell, T., C. Clark, G.J. Reinds, T. Sullivan, and B. Knees. 2021. Regional Critical Loads of Atmospheric Nitrogen Deposition for Terrestrial Vegetation: Case Study and Comparison. Presentation for National Atmospheric Deposition Program (NADP) Critical Loads of Atmospheric Deposition (CLAD) Virtual Seminar Series – Critical loads of N and S for herbaceous species and herbaceous richness. April 28, 2021.

McDonnell, T.C., G.J. Reinds, W. Wamelink, P. Goedhart, M. Posch, T. Sullivan, and C. Clark. 2020. Vegetation Response Models and Regional Critical Loads of Atmospheric Nitrogen Deposition. National Atmospheric Deposition Program Fall Meeting and Scientific Symposium. October 29, 2020. Online meeting (originally scheduled for Knoxville, TN).

McDonnell, T.C., T.J. Sullivan, B. Knees, M. Bell, and E. Felker-Quinn. 2020. Intermodel Comparison of Atmospheric Nitrogen Deposition Estimates for the Conterminous United States and Critical Load Exceedance for Selected National Parks. National Atmospheric Deposition Program Total Deposition Science Committee (TDep), Spring 2020 Meeting. May 12, 2020. Online meeting (originally scheduled for Madison, WI).

McDonnell, T.C., G.J. Reinds, W. Wamelink, P. Goedhart, M. Posch, T. Sullivan, and C. Clark. 2020. Biodiversity Modeling and Critical Loads Assessment in the USA. International Cooperative Programme on Modelling and Mapping of Critical Levels & Loads and Air Pollution Effects, Risks and Trends (ICP M&M) 36th Task Force Meeting, April 22, 2020. Online meeting (originally scheduled for Stockholm, Sweden).

McDonnell, T.C., G.J. Reinds, W. Wamelink, P. Goedhart, M. Posch, M. Doviak, T.J. Sullivan, and C. Clark. 2020. Modeling habitat suitability for temperate forest understory vegetation. Presented at Adirondack Research Forum, Old Forge, NY, February 25, 2020.

Zarfos, M.R., M. Dovciak, G. Lawrence, T. McDonnell, and T. Sullivan. 2020. Understanding a 5-year shift in the composition of Adirondack hardwood seedling communities: the role of soil nutrients and climate. Presented at Adirondack Research Forum, Old Forge, NY, February 25, 2020.
McDonnell, T.C. and J. Phelan. 2019. Biodiversity Modeling and Critical Loads Efforts in the USA. 19th Meeting of the UNECE Working Group on Effects: Joint Expert Group on Dynamic Modelling. Sitges, Spain, October 30, 2019.

McDonnell, T.C., T.J. Sullivan, C.T. Driscoll, B.J. Cosby, W.A. Jackson, G.B. Lawrence, D.A. Burns, C.A. Dolloff, C.M. Beier, P.F. Hessburg, N.A. Povak, and K.M. Reynolds. 2019. Regional Stream Acidification and Critical Loads in the Adirondack and Southern Appalachian Mountains Including Interactions with Climate Change. Presented at Society for Freshwater Science Annual Meeting, Salt Lake City, Utah, May 22, 2019.

Driscoll, C.T., S. Shao, T.J. Sullivan, T.C. McDonnell, B.P. Baldigo, D.A. Burns, and G.B. Lawrence. 2018. Responses of Streams in the Adirondack Mountains to Changes in Atmospheric Deposition of Sulfur and Nitrogen: Past and Future Acidification and Target Loads of Deposition to Promote Resource Recovery. Presented at the Adirondack Acid Rain Conference in Saratoga Springs, NY, November 29, 2018.

Burns, D., G. Lawrence., T. Sullivan, C. Driscoll, S. Shao and T. McDonnell. 2017. Episodic Acidification in the Adirondack Region of New York: Spatial Patterns and Evidence of Recovery. NADP Fall Meeting, San Diego, CA, October 30-November 3, 2017.

Shao, S., C.T. Driscoll, D.A. Burns, G.B. Lawrence, and T.J. Sullivan. 2017. Developing Critical Loads of Acidity for Stream Ecosystems in the Adirondack Region of New York State. NADP Fall meeting, San Diego, CA, October 30-November 3, 2017.

Zarfos, M.R., M. Dovciak, G.B. Lawrence, T.C. McDonnell and T.J. Sullivan. 2017. Effects of Acidic Deposition and a Soil Acidification Gradient on Forest Understory Plant Richness And Composition in the Adirondack Mountains, New York. Ecological Society of America Annual Meeting, Portland, OR, August 6-11, 2017.

Lapenis, A., A. Buyantuev, S. Jiang, G. Lawrence, T. Sullivan, T. McDonnell, and S. Bailey. 2016. Spring Phenology – A Newly Identified Ecophysiological Role of the Deciduous Forest Floor. American Geophysical Union Fall Meeting, San Francisco, CA, December 12-16, 2016.

Lawrence, G.B., T.J. Sullivan, T.C. McDonnell, S.W. Bailey, M. Dovciak and M.R. Antidormi. 2016. Influence of Soil-Base Availability on Composition and Structure of Adirondack, NY, Sugar Maple-Beech Forests. Soil Science Society of America Annual Meeting, Phoenix, AZ, November 6-9, 2016.

Sullivan, T., McDonnell, T., Beier, C, Belyazid, S.,  Burns, D., Clark, C. , Cosby, B., Dovciak, M., Driscoll, C., Jackson, W., Lawrence, G., Reinds, G., Sams, C., Shao, S., and Whalen, M. 2016. Ecosystem Recovery from S and N Deposition and Associated Critical Loads in Context of Changing Climate. NADP Fall Meeting, Santa Fe, NM, November, 2016.

Barna, M., T. Moore, T. Sullivan, T. McDonnell, and T. Thompson. 2016. Simulating the Contribution of Emissions from Oil and Gas Development to Regional Nitrogen Deposition at National Parks in the Intermountain West. International Global Atmospheric Chemistry, Breckenridge, CO, September 26-30, 2016.

McDonnell, T., S. Belyazid, L. Bonten, C. Clark, G.J. Reinds, and T. Sullivan. 2016. Exploring Coupled Dynamic Biogeochemical and Vegetation Models in Temperate Forest Ecosystems of the Eastern United States. 26th CCE Workshop and 32nd ICP M&M Task Force Meeting, Dessau, Germany, April 19-22, 2016

Lawrence, G.B., D.S. Ross, T.J. Sullivan, T.C. McDonnell, S.W. Bailey, and J.E. Dukett. 2015. Combining Long-Term Watershed Monitoring at Buck Creek with Spatially Extensive Ecosystem Data to Understand the Processes of Acid Rain Effects and Recovery. American Geophysical Union Fall meeting. San Francisco, CA, December 14-18, 2015.
McDonnell, T.C. and Sullivan, T.J.  2014. Evaluating Effects of Atmospheric N and S Deposition and Climate on Forest Ecosystem Services Based on the Critical Loads Paradigm. International Union of Forest Research Organizations. XXIV World Congress, Salt Lake City, UT, October 5-11, 2014.

Bishop, D.A., C.M. Beier, N. Pederson, G.B. Lawrence, J.C. Stella, and T.J. Sullivan. 2014. Assessing the factors of regional growth decline of sugar maple. American Geophysical Union Fall meeting, San Francisco, CA, December 15-19, 2014.

Sullivan, T.J., T.C. McDonnell, K. Reynolds, P. Hessburg, N. Povak, and  B. Salter. 2013. Ecosystem Management Decision Support (EMDS). Surface Water Acidification in the Southern Appalachian Mountains. ESE/EMDS Workshop. U.S. Forest Service Region 8 Air Resource Management, Asheville, NC, April 9th, 2013.

Sullivan, T.J. and T.C. McDonnell. 2012. Critical Loads Approach to Ecosystem Services. Presented at 2012 NADP Annual Meeting and Scientific Symposium: The NADP Cooperative: State, Local and Tribal Perspectives, Portland, ME, October 2-5, 2012.

Burns, D.A., K.C. Rice, G.B. Lawrence, T.J. Sullivan, and A.C. Ellsworth. 2012. Stream Chemistry and Sensitivity to Acid Deposition along the Appalachian Trail. Presented at 2012 NADP Annual Meeting and Scientific Symposium: The NADP Cooperative: State, Local and Tribal Perspectives, Portland, ME, October 2-5, 2012.

Sullivan, T.J. 2012. Application of Critical Loads and Ecosystem Services Principles to Assessment of the Effects of Atmospheric Sulfur and Nitrogen Deposition on Acid- Sensitive Aquatic and Terrestrial Resources. Presented at Ecosystem Services Partnership Conference, Portland, OR, July 2012.

Sullivan, T., T. McDonnell, B. Cosby, C. Driscoll, G. Lawrence, S. Bailey, H. Sverdrup, S. Belyazid, P. Hessburg, N. Povak, and K. Reynolds. 2012. Modeling Critical Loads Using Process Models: Recent Efforts. Presented at NADP Conference, Portland, OR, April 2012.

Lawrence, G., D.A. Burns, K.C. Rice, T. Sullivan, M. Dovčiak, D. Leopold, K.C. Weathers, R. Minocha, S.W. Bailey, and A.C. Ellsworth. 2012. Appalachian Trail MEGA-Transect Deposition Effects. Presented at CLAD meeting, April 2012.

Reynolds, K., P. Hessburg, T. Sullivan, N. Povak, T. McDonnell, B. Cosby, and W. Jackson. 2012. Spatial Decision Support for Assessing Impacts of Atmospheric Sulfur Deposition on Aquatic Ecosystems in the Southern Appalachian Region. Proceedings of the 45th Hawaiian International Conference on System Sciences. 4-7 January 2012, Maui, Hawaii. 10 pp.

Sullivan, T.J., Cosby, B.J., McDonnell, T.C., and Driscoll, C.T. 2011. Modeling Critical Loads, New York and Beyond. Presented at New York State Research and Development Authority (NYSERDA) Conference, Environmental Monitoring, Evaluation, and Protection in New York: Linking Science and Policy. Albany, NY, November 15-16, 2011.

Belyazid, S. H. Sverdrup, J. Phelan, and T. Sullivan. 2011. An Overview of Recent Developments in Estimating Critical Loads of Atmospheric Deposition for Terrestrial Ecosystems. In: Proceedings of the NADP 2011 Annual Meeting and Scientific Symposium. NADP at the Nexus: Cross System Connections, October 25-28, 2011, Providence, RI. p. 40.

McDonnell, T.C., T.J. Sullivan, K. Reynolds, P. Hessburg, N. Povak, and B. Salter. 2011. Biological Response & Sulfur Critical Loads. Presented at EMDS Workshop at NADP Meeting, Pensacola, FL, May 5, 2011.

Sullivan, T.J., T. C. McDonnell, G. T. McPherson, E. Porter, S. D. Mackey, and D. Moore. 2011. Use of GIS to Evaluate Sensitivity of I&M Parks to Effects from Atmospheric Nitrogen Deposition. Presented at The George Wright Society Conference on Parks, Protected Areas, & Cultural Sites, New Orleans, LA, March 14-18, 2011.

Porter, E., T.J. Sullivan, B.J. Cosby, E.K. Miller, R. Haeuber, J. Lynch, T. Blett, C. Huber, and L. Parso. 2011. Planning Tools for Healthy and Resilient Ecosystems: Critical Loads for Air Pollution in Eastern Parks. Presented at The George Wright Society Conference on Parks, Protected Areas, & Cultural Sites, New Orleans, LA, March 14-18, 2011.

Sullivan, T.J. 2010. Limnology – the Big Picture. Presented at Forest Service Air Resource Management Program, Western Lakes Monitoring Workshop. Skamania, WA, March 2-4, 2010.

Sullivan, T.J. 2010. Field Sampling Protocols Document Overview. Study Design. Where, What, and When to Sample. Presented at Forest Service Air Resource Management Program, Western Lakes Monitoring Workshop. Skamania, WA, March 2-4, 2010.

Sullivan, T.J., B.J. Cosby, and T.C. McDonnell. 2010. Steady State Aquatic Critical Loads for Acid Sensitive Portions of Virginia and West Virginia. Final Results of SE Multiagency Critical Load Project. Presented at Critical Loads Ad Hoc (CLAD) Committee, NADP Meeting, Memphis, TN, April 20-21, 2010.

Sullivan, T.J., B.J. Cosby, C.T. Driscoll, T.C. McDonnell, Q. Zhou, and D. Burns. 2010. Development of Critical Loads for the Protection of Acid-Sensitive Resources in the Adirondack Mountains, New York. Presented at Critical Loads Ad Hoc (CLAD) Committee, NADP Meeting, Memphis, TN, April 20-21, 2010.

Sullivan, T.J., B.J. Cosby, T.C. McDonnell, C.T. Driscoll, A.T. Herlihy, and D.A. Burns. 2010. MAGIC Model Estimates of Critical Load of Sulfur Deposition to Protect Acid-Sensitive Resources in the Adirondack Mountains, New York. Presented at 2010 National Atmospheric Deposition Program Annual Meeting & Scientific Symposium, Networking the Networks, Lake Tahoe, CA, October 19-21, 2010.

Hessburg, P., K. Reynolds, T. Sullivan, B. Jackson, M. Povak, B. Salter, and T. McDonnell. 2010. Progress on Implementation of a Decision-Support System to Assess Critical Loads of Atmospheric S Deposition in the Southeastern US. Presented at 2010 National Atmospheric Deposition Program Annual Meeting & Scientific Symposium, Networking the Networks, Lake Tahoe, CA, October 19-21, 2010.

Zhou, Q., C.T. Driscoll, T.J. Sullivan, and B.J. Cosby. 2010. Factors Controlling the Critical Loads and Dynamic Critical Loads in Lake-Watersheds of the Adirondack Region of New York. Presented at 2010 National Atmospheric Deposition Program Annual Meeting & Scientific Symposium, Networking the Networks, Lake Tahoe, CA, October 19-21, 2010.

Sverdrup, H., T. Sullivan, B. Nihlgård, S. Belyazid, T. McDonnell, and B. Rihm. 2010. Testing the Feasibility of Using ForSAFE--‐VEG for Mapping Critical Loads for Nitrogen Based on Biodiversity in the Rocky Mountains Region. Presented at Critical Loads Ad Hoc (CLAD) Committee Meeting, Lake Tahoe, CA, October 19-21, 2010.
Sullivan, T.J., B.J. Cosby, and T.C. McDonnell. 2009. Critical Loads for Protection of Aquatic Resources in the Blue Ridge, Ridge and Valley, and Appalachian Plateau Ecoregions of Virginia and West Virginia. Presented at 2009 Annual Meeting and Scientific Symposium. National Atmospheric Deposition Program, Saratoga Springs, NY, October 6-9, 2009.

Driscoll, C.T., K.M. Driscoll, K. Roy, Q. Zhao, A. Pourmokhtarian, T. J. Sullivan, and M. Mitchell. 2009. Mercury and Acid Deposition Research – A Recap of Current Efforts and Knowledge. Presented at NYSERDA Conference. Environmental Monitoring, Evaluation, and Protection: Linking Science and Policy, Albany, NY, October 14-15, 2009.

Lawrence, G.B., K.C. Weathers, A.M. Elliott, and T.J. Sullivan. 2009. Critical Loads of Nitrogen and Sulfur for Aluminum Mobilization in Adirondack Soils. Presented at NYSERDA Conference. Environmental Monitoring, Evaluation, and Protection: Linking Science and Policy, Albany, NY, October 14-15, 2009.

Sullivan, T.J., B.J. Cosby, C.T. Driscoll, T.C. McDonnell, Q. Zhou, and D.A. Burns. 2009. Use of Critical Deposition Loads to Inform Environmental Protection Strategies. Presented at NYSERDA Conference. Environmental Monitoring, Evaluation, and Protection: Linking Science and Policy, Albany, NY, October 14-15, 2009.

Sullivan, T., B. Cosby, and T. McDonnell. 2009. Aquatic Critical Loads in Virginia and West Virginia. Results of the Southeast Multi-Agency Critical Loads Modeling Project, NADP Meeting, Saratoga Springs, NY, October 2009.

Sullivan, T., B. Cosby, and T. McDonnell. 2009. Aquatic Critical Loads in Virginia and West Virginia. Research Results. Presented at Critical Loads Ad Hoc (CLAD) Meeting, Pensacola, FL, April 2009.

Sullivan, T., C. Driscoll, B. Cosby, D. Burns, A. Herlihy, and T. McDonnell. 2009. Critical Loads to Adirondack Lake Watersheds. Progress Report. Presented at Critical Loads Ad Hoc (CLAD) Meeting, Pensacola, FL, April 2009.

Alpine Vegetation Workshop: Response of Alpine and Subalpine Plant Species to Changes in Atmospheric N Deposition. Sponsored by National Park Service and U.S. Environmental Protection Agency, Denver, CO, November 6-7, 2008.

Sullivan, T., T. McDonnell, and B. Cosby. 2008. Progress on the Multi-Agency Critical Loads Project. NADP Meeting, Madison WI. October, 2008.

Sullivan, T. and G. Lawrence. Integrated Science Assessment For Particulate Matter (PM). 2008. Ecological, Material and Climate Effects. Major Findings. Prepared for US EPA National Center for Environmental Assessment (NCEA), Research Triangle Park, NC. June 16, 2008.

McNulty, S., E. Cohen, H. Li, J. Moore Myers, and T. Sullivan. 2008. Estimates of critical acid loads and exceedances for forest soils across the conterminous United States. Paper presented at the 23rd International Union of Forest Research Organizations (IUFRO) Conference, Air Pollution and Climate Change at Contrasting Altitude and Latitude, September 7-12, 2008, Murten, Switzerland.

Sullivan, T.J. and B.J. Cosby. 2006. MAGIC model calculations of critical loads of acidic deposition for the protection of U.S. surface waters. Multi-Agency Critical Loads Workshop on Sulfur and Nitrogen Deposition Effects on Freshwater and Terrestrial Ecosystems, Charlottesville, VA, May 23-24, 2006.

Sullivan, T.J., B.J. Cosby, and C.T. Driscoll. 2006. Calculation of critical loads of acidic deposition for the protection of acid-sensitive surface waters. Paper presented at NADP 2006: Effects of Deposition in Coastal and Urban Environments, October 24-26, 2006, Norfolk, VA.

Herlihy, A., R. Hughes, and T. Sullivan. 2006. Developing reference conditions, indicators, field methodology, and indices of biotic integrity for a national lakes survey. Planning a Survey of the Nation’s Lakes. National conference co-sponsored by U.S. Environmental Protection Agency, Chicago Botanic Garden, and North American Lake Management Society. Chicago, IL. April 25-28, 2006.

Sullivan, T.J., M. Wustenberg, K.U. Snyder, J. Moore, D. Moore, E. Gilbert, and E. Mallery. 2006. Relationship between size of vegetated buffers and transport of fecal coliform bacteria from pasturelands treated with dairy cow manure. Paper presented at American Dairy Science Association/American Society of Animal Science Association Joint Meeting, July 9-13, 2006, Minneapolis, MN.

Sullivan, T., C. Boyle, B.J. Cosby, C. Driscoll, I. Fernandez, A. Herlihy, T. McDonnell, E. Miller, S. Nierzwicki-Bauer, N. Nowicki, K. Snyder, R. Stemberger, and J. Sutherland. 2003. Assessment of extent to which intensively-studied lakes are representative of the Adirondack Mountain region, New York. Poster Presentation, American Geophysical Union, San Francisco, 8-12 December, 2003.

Sullivan, T.J., M. Wustenberg, K.U. Snyder, J. A. Moore, D. Moore, E. Gilbert, and E. Mallery. 2002. Remediation of agricultural contributions of fecal coliform bacteria, sediment, and heat in the Tillamook Basin: Final report and conclusions of the Beaver Creek Project. Tillamook County Estuary Partnership, State of the Bay Conference, September 19-20, 2002, Rockaway Beach, OR (invited).

Sullivan, T.J., M. Wustenberg, E. Gilbert, and K.U. Snyder. 2002. Monitoring for improvement in water quality in the rivers that flow into Tillamook Bay. Tillamook County Estuary Partnership, State of the Bay Conference, September 19-20, 2002, Rockaway Beach, OR (invited).