Research Publications

Publications by Alan R. Townsend

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Nemergut, D. R., Joey Knelman, Ferrenberg, S., Bilinski, T., Melbourne, B., Jiang, L., Violle, C., Darcy, J. L., Prest, T., Schmidt, S. K., Alan R. Townsend 2016: Decreases in average bacterial community rRNA operon copy number during succession. ISME Journal, 10(5): 1147-1156. DOI: 10.1038/ismej.2015.191

Cole, R. J., Holl, K. D., Zahawi, R. A., Wickey, P., Alan R. Townsend 2016: Leaf litter arthropod responses to tropical forest restoration. Ecology and Evolution, 6(15): 5158-5168. DOI: 10.1002/ece3.2220

Sullivan, B. W., Smith, W. K., Alan R. Townsend, Nasto, M. K., Reed, S. C., Chazdon, R. L., Cory Cleveland 2014: Spatially robust estimates of biological nitrogen (N) fixation imply substantial human alteration of the tropical N cycle. Proceedings of the National Academy of Sciences, 111(22): 8101-8106. DOI: 10.1073/pnas.1320646111

Sullivan, B. W., Alvarez-Clare, S., Castle, S. C., Porder, S., Reed, S. C., Schreeg, L., Alan R. TownsendCory Cleveland 2014: Assessing nutrient limitation in complex forested ecosystems: Alternatives to large-scale fertilization experiments. Ecology, 95(3): 668-681. DOI: 10.1890/13-0825.1

Anderson, D. M., Alan R. Townsend, lead authors 2014: Third National Climate Assessment.

Suddick, E. C., Whitney, P., Alan R. Townsend, Davidson, E. A. 2013: The role of nitrogen in climate change and the impacts of nitrogen-climate interactions in the United States: Foreword to thematic issue. Biogeochemistry, 114(1-3): 1-10. DOI: 10.1007/s10533-012-9795-z

Houlton, B. Z., Boyer, B., Finzi, A., Galloway, J., Leach, A., Daniel Liptzin, Melillo, J., Rosenstock, T. S., Sobota, D., Alan R. Townsend 2013: Intentional versus unintentional nitrogen use in the United States: Trends, efficiency and implications. Biogeochemistry, 114(1-3): 11-23. DOI: 10.1007/s10533-012-9801-5

Reed, S. C., Alan R. TownsendCory Cleveland 2013: Relationships between phosphorus, molybdenum, and free-living nitrogen fixation in tropical rain forests: Results from observational and experimental analyses. Biogeochemistry, 114(1-3): 135-147. DOI: 10.1007/s10533-013-9835-3

Alan R. Townsend, Asner, G. P. 2013: Multiple dimensions of resource limitation in tropical forests. Proceedings of the National Academy of Sciences, 110(13): 4864-4865. DOI: 10.1073/pnas.1301606110

Alan R. Townsend, Porder, S. 2012: Agricultural legacies, food production and its environmental consequences. Proceedings of the National Academy of Sciences, 109(16): 5917-5918. DOI: 10.1073/pnas.1203766109

Alan R. Townsend, Vitousek, P. M., Houlton, B. Z. 2012: The climate benefits of better nitrogen and phosphorus management. Issues in Science and Technology, Winter 2012.

Cory ClevelandAlan R. TownsendPhil Taylor, Alvarez-Clare, S., Bustamante, M. M. C., Chuyong, G., Grierson, P., Harms, K. E., Houlton, B. Z., Marklein, A., Parton, W., Porder, S., Reed, S. C., Sierra, C. A., Silver, W. L., Tanner, E. V. J., Will Wieder 2011: Relationships among net primary productivity, nutrients and climate in tropical rain forest: A pan-tropical analysis. Ecology Letters, 14(9): 939 947. DOI: 10.1111/j.1461-0248.2011.01658.x

Alan R. Townsend, Martinelli, L. A., Grimm, N. B. 2010: Perspectives on the modern nitrogen cycle. Invited feature. Ecological Applications, 20(1): 3-4. DOI: 10.1890/09-0811.1

Reed, S. C., Alan R. TownsendPhil TaylorCory Cleveland 2010: Phosphorus cycling in tropical forests growing on highly weathered soils. In Bünemann, E., Oberson, A., and Frossard, E. (eds.), Phosphorus in Action: Biological Processes in Soil Phosphorus Cycling. New York: Springer, 339-369.

Johnson, Pieter T. J., Alan R. TownsendCory Cleveland, Glibert, P. M., Howarth, R. W., McKenzie, V. J., Rejmankova, E., Ward, M. H. 2010: Linking environmental nutrient enrichment and disease emergence in humans and wildlife. Ecological Applications, 20(1): 16 29.

Vitousek, P. M., Naylor, R., Crews, T., David, M. B., Drinkwater, L. E., Holland, E., Johnes, P. J., Katzenberger, J., Martinelli, L. A., Matson, P. A., Nziguheba, G., Ojima, D., Palm, C. A., Robertson, G. P., Sanchez, P. A., Alan R. Townsend, Zhang, F. S. 2009: Nutrient imbalances in agricultural development. Science, 324(5934): 1519-1520. DOI: 10.1126/science.1170261

Johnson, P. T. J., Alan R. TownsendCory Cleveland, Gilbert, P. M., Howarth, R. W., McKenzie, V. J., Rejmankova, E., Ward, M. H. 2009: Linking environmental nutrient enrichment and disease emergence in humans and wildlife. Ecological Applications, 20(1): 16 29, DOI: 10.1890/08-0633.1

Alan R. Townsend, Martinelli, L. A., Howarth, R. W. 2009: The global nitrogen cycle, biodiversity, and human health. In Sala, O., Mayerson, L., and Parmesan, C. (eds.), Biodiversity Change and Human Health: From Ecosystem Services to Spread of Disease. Washington, D. C.: Island Press, 2009, 159 178.

Vitousek, P. M., Naylor, R., Crews, T., David, M. B., Drinkwater, L. E., Holland, E., Johnes, P. J., Katzenberger, J., Martinelli, L. A., Matson, P. A., Nziguheba, G., Ojima, D., Palm, C. A., Robertson, G. P., Sanchez, P. A., Alan R. Townsend, Zhang, F. S. 2009: Nutrient imbalances: Pollution remains response. Science, 324(5953): 665 666.

Galloway, J. N., Alan R. Townsend, Erisman, J. W., Bekunda, M., Cai, Z. C., Freney, J. R., Martinelli, L. A., Seitzinger, S. P., Sutton, M. A. 2008: Transformation of the nitrogen cycle: Recent trends, questions, and potential solutions. Science, 320(5878): 889 892. DOI: 10.1126/science.1136674

Nemergut, D. R., Alan R. Townsend, Sattin, S. R., Freeman, K. R., Fierer, N., Neff, J. C., Bill Bowman, Schadt, C. W., Weintraub, M. N., Schmidt, S. K. 2008: The effects of chronic nitrogen fertilization on alpine tundra soil microbial communities: Implications for carbon and nitrogen cycling. Environmental Microbiology, 10(11): 3093-3105. DOI: 10.1111/j.1462-2920.2008.01735.x

Bern, C. R., Alan R. Townsend 2008: Accumulation of atmospheric sulfur in some Costa Rican soils. Journal of Geophysical Research Biogeosciences, 113: G03001. DOI: 10.1029/2008JG000692

McKenzie, V. J., Alan R. Townsend 2007: Parasitic and infectious disease responses to changing global nutrient cycles. Ecohealth, 4(4): 384 396.

Bern, C. R., Porder, S., Alan R. Townsend 2007: Erosion and landscape development decouple strontium and sulfur in the transition to dominance by atmospheric inputs. Geoderma, 142(3-4): 274 284.

Galloway, J. N., Alan R. Townsend, Erisman, J. W., Seitzinger, S., Martinelli, L. A., Bekunda, M., Sutton, M., Freney, J., Cai, Z. 2007: Human alteration of the global nitrogen cycle: Threats, benefits and opportunities. UNESCO-SCOPE Policy Brief, April 2007.

Reed, S. C., Cory ClevelandAlan R. Townsend 2007: Controls over leaf litter and soil nitrogen fixation in two lowland tropical rain forests. Biotropica, 39(5): 585 592.

Alan R. TownsendCory Cleveland, Asner, G. P., Bustamante, M. M. C. 2007: Controls over foliar N:P ratios in tropical rain forests. Ecology, 88(1): 107 118.

Martinelli, L. A., Howarth, R. W., Cuevas, E., Filoso, S., Austin, A. T., Donoso, L., Huszar, V., Keeney, D., Lara, L. L., Llerena, C., McIssac, G., Medina, E., Ortiz-Zayas, J., Scavia, D., Schindler, D. W., Soto, D., Alan R. Townsend 2006: Sources of reactive nitrogen affecting ecosystems in Latin America and the Caribbean: Current trends and future perspectives. Biogeochemistry, 79(1-2): 3-24. DOI: 10.1007/978-1-4020-5517-1_1

Cory Cleveland, Reed S. C., Alan R. Townsend 2006: Nutrient regulation of organic matter decomposition in a tropical rain forest. Ecology, 87 (2): 492 503.

Cory ClevelandAlan R. Townsend 2006: Nutrient additions to a tropical rain forest drive substantial soil carbon dioxide losses to the atmosphere. Proceedings of the National Academy of Sciences, 103 (27): 10316 10321.

Alan R. Townsend, Davidson, E. A. 2006: Denitrification across landscapes and waterscapes. Ecological Applications, 16 (6): 2055 2056.

Bern, C. B., Alan R. Townsend, Farmer, G. L. 2005: Unexpected dominance of parent-material strontium in a tropical forest on highly weathered soils. Ecology, 86 (3): 626 632.

Litaor, M. I., Tim Seastedt, Walker, M. D., Carbone, M., Alan R. Townsend 2005: The biogeochemistry of phosphorus across an alpine topographic/snow gradient. Geoderma, 124 (1-2): 49 61.

Mahowald, N. M., Artaxo, P., Baker, A., Jickells, T. D., Okin, G. S., Randerson, J. T., Alan R. Townsend 2005: Impacts of biomass burning emissions and land use on Amazonian atmospheric phosphorus cycling and deposition. Global Biogeochemical Cycles, 19 (4): article GB4030. DOI: 10.1029/2005GB002541

Palmer, M. A., Bernhardt, E., Chornesky, E., Collins, S. L., Dobson, A., Duke, C., Gold, B., Jacobson, R., Kingsland, S., Kranz, R., Mappin, M., Martinez, M. L., Micheli, F., Morse, J. L, Pace, M., Pascual, M., Palumbi, S., Reichman, J., Schlesinger, W. H., Alan R. Townsend, Turner, M. G. 2005: Ecological science and sustainability for the 21st century. Frontiers in Ecology and the Environment, 3 (1): 4 11.

Asner, G. P., Alan R. Townsend, Bustamante, M. M. C., Nardoto, G. B., Olander, L. P. 2004: Pasture degradation in the central Amazon: Linking changes in carbon and nutrient cycling with remote sensing. Global Change Biology, 10(5): 844-862. DOI: 10.1111/j.1529-8817.2003.00766.x

Cory ClevelandAlan R. Townsend, Constance, B. C., Ley, R. E., Schmidt, S. K. 2004: Soil microbial dynamics in Costa Rica: Seasonal and biogeochemical constraints. Biotropica, 36(2): 184-195.

Galloway, J. N., Dentener, F. J., Capone, D. G., Boyer, E. W., Howarth, R. W., Seitzinger, S. P., Asner, G. P., Cory Cleveland, Greene, P. A., Holland, E. A., Karl, D. M., Michaels, A. F., Porter, J. H., Alan R. Townsend, Vörösmarty, C. J. 2004: Nitrogen cycles: Past, present and future. Biogeochemistry, 70(2): 153-226. DOI: 10.1007/s10533-004-0370-0

Cory ClevelandCleveland, C. C., Neff, J. C., Alan R. Townsend, Hood, E. 2004: Composition, dynamics, and fate of leached dissolved organic matter in terrestrial ecosystems: Results from a decomposition experiment. Ecosystems, 7(3): 275-285. DOI: 10.1007/s10021-003-0236-7

Palmer, M., Bernhardt, E., Chornesky, E., Collins, S., Dobson, A., Duke, C., Gold, B., Jacobson, R., Kingsland, S., Kranz, R., Mappin, M., Martinez, M. L., Micheli, F., Morse, J., Pace, M., Pascual, M., Palumbi, S., Reichman, O. J., Simons, A., Alan R. Townsend, Turner, M. 2004: Ecology for a crowded planet. Science, 304(5675): 1251-1252. DOI: 10.1126/science.1095780

Cory ClevelandAlan R. Townsend, Schmidt, S. K., Constance, B. C. 2003: Soil microbial dynamics and biogeochemistry in tropical forests and pastures, southwestern Costa Rica. Ecological Applications, 13(2): 314-326.

Asner, G. P., Bustamante, M. M. C., Alan R. Townsend 2003: Scale dependence of biophysical structure in deforested areas bordering the Tapajós National Forest, Central Amazon. Remote Sensing of Environment, 87(4): 507-520.

Alan R. Townsend, Asner, G. P., Cory Cleveland, Lefer, M. E., Bustamante, M. M. C. 2002: Unexpected changes in soil phosphorus dynamics along pasture chronosequences in the humid tropics. Journal of Geophysical Research-Atmospheres, 107(D20): article 8067. DOI: 10.1029/2001JD000650

Holland, E.A., Neff, J.C., Alan R. Townsend, McKeown, B. 2000: Uncertainties in the temperature sensitivity of decomposition in tropical and subtropical ecosystems: experimental data and extrapolation with models. Global Biogeochemical Cycles, 14(4):1137-1151

Asner, G. P., Alan R. Townsend, Braswell, B.H. 2000: Satellite observation of El Nino effects on Amazon forest productivity . Geophysical Research Letters, 27(7):981-984

Howarth, R.W., Jaworski, N., Swaney, D., Alan R. Townsend, Billen, G. 2000: Some approaches for assessing human influence on fluxes of nitrogen and organic carbon to estuaries. In: Hobbie, J.E. (ed.) Estuarine Synthesis: a synthetic approach to research and practice. Washington D.C., Island Press.

Matson, P. A., McDowell, W. H., Alan R. Townsend, Vitousek, P. M. 1999: The globalization of N deposition: Ecosystem consequences in tropical environments. Biogeochemistry, 46(1-3): 67-83. DOI: 10.1023/A:1006152112852

Martinelli, L., Piccolo, M., Alan R. Townsend, Vitousek, P. M., Cuevas, E., McDowell, W., Robertson, G. P., Santos, O. C., Treseder, K. 1999: Nitrogen stable isotopic composition of leaves and soil: Tropical versus temperate forests. Biogeochemistry, 46(1-3): 45-65. DOI: 10.1023/A:1006100128782

Asner, G. P., Alan R. Townsend, Bustamante, M.C. 1999: Spectrometry of pasture condition and biogeochemistry in the Central Amazon . Geophysical Research Letters 26(17):2769-2772

Cory ClevelandAlan R. Townsend, , Fisher, H., Howarth, R.W., Hedin, L.O., Perakis, S.S., Latty, E.F., Von Fischer, J.C., Elseroad, A., Wasson, M.F. 1999: Global patterns of terrestrial biological nitrogen (N2) fixation in natural ecosystems. Global Biogeochemical Cycles, 13(2):623-645

Holland, E. A., Braswell, B. H., Lamarque, J.-F., Alan R. Townsend, Sulzman, J., Mueller, J.-F., Dentener, F., Brasseur, G., Levy, H., II, Penner, J. E., Roelofs, G.-J. 1997: Variations in the predicted spatial distribution of atmospheric nitrogen deposition and their impact on carbon uptake by terrestrial ecosystems. Journal of Geophysical Research, 102(D13): 15,849-15,866. DOI: 10.1029/96JD03164

Alan R. Townsend, Vitousek, P.M., Desmarais, D.J., Tharpe, A. 1997: Soil carbon pool structure and temperature sensitivity inferred using CO2 and 13CO2 incubation fluxes from five Hawaiian soils. Biogeochemistry 38:1-17

Alan R. Townsend, Braswell, B. H., Holland, E. A., Penner, J. E. 1996: Spatial and temporal patterns in terrestrial carbon storage due to deposition of fossil fuel nitrogen. Ecological Applications, 6(3): 806-814. DOI: 10.2307/2269486

Holland, E. A., Alan R. Townsend, Vitousek, P. M. 1995: Variability in temperature regulation of CO2 fluxes and N mineralization from five Hawaiian soils: Implications for a changing climate. Global Change Biology, 1(2): 115-123. DOI: 10.1111/j.1365-2486.1995.tb00011.x

, Braswell, B. H., Holland, E. A., McKeown, R., Ojima, D. S., Painter, T. H., Parton, W. J., Alan R. Townsend 1994: Climatic, edaphic, and biotic controls over storage and turnover of carbon in soils. Global Biogeochemical Cycles, 8(3): 279-293. DOI: 10.1029/94GB00993

Alan R. Townsend, Vitousek, P. M., Holland, E. A. 1992: Tropical soils could dominate the short-term carbon cycle feedbacks to increased global temperatures. Climatic Change, 22(4): 293-303. DOI: 10.1007/BF00142430