IBL Publications
A partial list of lab publications. PDFs not linked here are available on request.
Townsend, A.R., G.P. Asner and C.C. Cleveland. 2008. The biogeochemical heterogeneity of tropical forests. Trends in Ecology and Evolution, 23(8):424-431.
Galloway, JN; Townsend, AR; Erisman, JW; Bekunda, M; Cai, ZC; Freney, JR; Martinelli, LA; Seitzinger, SP; Sutton, MA. 2008. Transformation of the nitrogen cycle: Recent trends, questions, and potential solutions. Science 320 (5878): 889-892.
Nemergut, D.N, A.R. Townsend et al. 2008. The effects of chronic nitrogen fertilization on alpine tundra soil microbial communities: implications for carbon and nitrogen cycling. Environmental Microbiology, in press.
Reed, S.C., C.C. Cleveland and A.R. Townsend. 2008. Tree species control rates of free-living nitrogen fixation in a lowland tropical forest. Ecology, in press.
Bern, C.R. and A.R. Townsend. 2008. Accumulation of atmospheric sulfur in Costa Rican soils. JGR-Biogeosciences, in press.
Wieder, WR; Cleveland, CC; Townsend, AR. 2008. Tropical tree species composition affects the oxidation of dissolved organic matter from litter. Biogeochemistry 88 (2): 127-138.
Townsend, A.R., L.A. Martinelli and R.W. Howarth. The Global Nitrogen Cycle, Biodiversity and Human Health. in, Biodiversity and Human Health, O. Sala and C. Parmesan, eds. To be published by Island Press in summer of 2008.
Bern, C.R., S. Porder and A.R. Townsend. 2007. Erosion and landscape development decouple strontium and sulfur in the transition to dominance by atmospheric inputs. Geoderma, 142:274-284.
McKenzie, V. and A.R. Townsend. Parasitic and Infectious Disease Responses to a Changing Global Nitrogen Cycle. 2007. EcoHealth, 4(4):384-396.
Townsend, A.R., C.C. Cleveland, G.P.Asner and M.M.C. Bustamante. 2007. Controls over foliar N:P ratios in tropical forests. Ecology, 88(1): 107-118.
Reed, S.C., C.C. Cleveland and A.R. Townsend. 2007. Climate and nutrient regulation of free-living N-fixation in a lowland tropical forest. Biotropica, 39(5):585-592.
Reed, S.C., , T.R. Seastedt, C.M. Mann, K.N. Suding and A.R. Townsend. 2007. Phosphorus Fertilization Stimulates Nitrogen Fixation and Increases Inorganic Nitrogen Concentrations in a Restored Prairie. Applied Soil Ecology, 36:238-242.
Kennish, M. and A.R. Townsend. 2007. Nutrient Enrichment and Estuarine Eutrophication. Ecological Applications, 17(5):1-2.
Galloway, J.N., A.R. Townsend, J.W. Erisman, S. Seitzinger, L.A. Martinelli, M. Bekunda, M. Sutton, J. Freney and Z. Cai. 2007. Human alteration of the global nitrogen cycle: threats, benefits and opportunities. UNESCO-SCOPE Policy Brief, April 2007. PDF
Cleveland, C.C., D.R. Nemergut, A.R. Townsend and S. Schmidt. 2007. Increases in soil respiration following labile carbon additions linked to rapid shifts in soil microbial community composition. Biogeochemistry, 82 (3): 229-240.
Townsend, A.R. and E.A. Davidson. 2006. Denitrification across landscapes and waterscapes. Ecological Applications 16 (6): 2055-2056.
Cleveland, C. C. and A. R. Townsend. 2006. Nitrogen and phosphorus additions cause substantial losses of soil carbon from a lowland tropical rain forest. Proceedings of the National Academy of Sciences, 103(27):10,316-10,321.
Cleveland, C.C., S.C. Reed and A.R. Townsend. 2006. Nutrient regulation of organic matter decomposition in a tropical rain forest. Ecology 87: 492-503.
Martinelli, L. A., R. W. Howarth, E. Cuevas, S. Filoso, A. T. Austin, L. Donoso, V. Huszar, D. Keeney, L. L. Lara, C. Llerena, G. McIssac, E. Medina, J. Ortiz-Zayas, D. Scavia, D. W. Schindler, D. Soto, and A. Townsend. 2006. Sources of reactive nitrogen affecting ecosystems in Latin America and the Caribbean: current trends and future perspectives. Biogeochemistry 79:3-24.
Cleveland, C. C., D. M. McKnight and A. R. Townsend. 2006. Links between the carbon and hydrologic cycles in terrestrial ecosystems. In: D. M. McKnight, (Ed). The Encyclopedia of Hydrological Science. John Wiley & Sons.
Litaor, M.I., T.R. Seastedt, M.D. Walker, M. Carbone, and A. R. Townsend. 2006. The biogeochemistry of phosphorus in alpine soils. Soil Sci. Soc. Am.J., in press.
Mahowald, NM, P Artaxo, AR. Baker, TD Jickells, GS Okin, JT Randerson and AR Townsend. 2005. The impacts of biomass burning emissions and land use change on Amazonian atmospheric phosphorus cycling and deposition. Global Biogeochemical Cycles, 19 (4): Art. No. GB4030
Palmer, M.A.,
E. Bernhardt, E. Chornesky, S.L. Collins, A. Dobson,
C. Duke, B. Gold, R. Jacobson, S. Kingsland, R.
Kranz, M. Mappin, M. L. Martinez, F. Micheli, J.L.
Morse, M. Pace, M. Pascual, S. Palumbi, J. Reichman,
W.H. Schlesinger, A. Townsend, and M. G. Turner.
2005. Ecological science and sustainability for
the 21st century. Frontiers in Ecology and the Environment,
3(1): 4–11. PDF
Bern, C.B.,
A.R. Townsend and G.L. Farmer. 2005. Unexpected
dominance of parent-material strontium in a tropical
forest on highly weathered soils. Ecology, 86(3):626-632.
PDF
Cleveland, C. C., J. C. Neff, A. R. Townsend and
E. Hood. 2004. Composition, dynamics and fate of
leached dissolved organic matter in terrestrial
ecosystems: Results of a decomposition experiment.
Ecosystems, 7 (3): 275-28. PDF
Asner, G.P.,
A. R. Townsend, M. M.C. Bustamante, G. B. Nardoto,
and L. P. Olander. 2004. Pasture Degradation in
the Central Amazon: Linking Changes in Carbon and
Nutrient Cycling with Remote Sensing. Global Change
Biology, 10 (5): 844-862. PDF
Galloway, J. N., G. Asner, E. W. Boyer, D. G. Capone,
C. Cleveland, F. J. Dentener, P. Greene, E. Holland,
R. W. Howarth, D. M. Karl, A. F. Michaels, S. P.
Seitzinger, A. R. Townsend, C. Vorosmarty (alphabetical
after first). 2004. Global and Regional Nitrogen
Cycles: Past, Present and Future. Biogeochemistry,
70 (2): 153-226. PDF
Townsend, A.
R., R. W. Howarth , F. A. Bazzaz , M. S. Booth ,
C. C. Cleveland , S. K. Collinge , A. P. Dobson
, P. R. Epstein, E. A. Holland , D. R. Keeney ,
M. A. Mallin , P. Wayne and A. Wolfe. 2003. Human
health effects of a changing global nitrogen cycle.
Frontiers in Ecology and the Environment 1(5):240-246.
PDF
Palmer, M.A.,
E. Bernhardt, E. Chornesky, S.L. Collins, A. Dobson,
C. Duke, B. Gold, R. Jacobson, S. Kingsland, R.
Kranz, M. Mappin, M. L. Martinez, F. Micheli, J.L.
Morse, M. Pace, M. Pascual, S. Palumbi, J. Reichman,
W.H. Schlesinger, A. Townsend, and M. G. Turner.
2004. Ecology for a Crowded Planet. Science, 304
(5675): 1251-1252. PDF
Asner, G.P.,
M.C. Bustamante and A.R. Townsend. 2003. Scale dependence
of biophysical structure in deforested areas bordering
the Tapajós National Forest, central Amazon.
Remote Sensing Environment, 87(4):507-520. PDF
Cleveland, C. C., A. R. Townsend, R. E. Ley, S.
K. Schmidt and B. C. Constance. 2004. Soil Microbial
Dynamics in Costa Rica: Seasonal and Biogeochemical
Constraints. Biotropica, 36 (2): 184-195. PDF
Seastedt, T.R., W.D. Bowman, D. McKnight, A.R. Townsend
and M. Williams. 2004. The Landscape Continuum:
A Conceptual Model for High Elevation Ecosystems.
BioScience, 54(2):111-121. PDF
Cleveland, C.
C., A.R. Townsend, B. C. Constance and S. K. Schmidt.
2003. Soil microbial dynamics and biogeochemical
cycling in lowland tropical rain forests and pastures
of southwestern Costa Rica. Ecological Applications
13(2): 314-326. PDF
Townsend, A.R., G.P. Asner, C.C. Cleveland, M.E.
Lefer and M. M. C. Bustamante. 2002. Unexpected
changes in soil phosphorus dynamics following tropical
deforestation to cattle pasture. Journal of Geophysical
Research,VOL. 107, NO. D20, 8067. PDF
Townsend, A.R., G.P. Asner, P.P. Tans and J.W. C.
White. 2002. Tropical land use effects on atmospheric
13C imply a sizable terrestrial carbon sink in equatorial
latitudes. Geophysical Research Letters,VOL. 29,
NO. 10, 10.1029. PDF
Neff, J.C.,
A.R. Townsend, G. Gleixner, S.J. Lehman, J. Turnbull
and W.D. Bowman. 2002. Variable effects of nitrogen
additions on the stability and turnover of organic
carbon. Nature, 419: 915-917. PDF
Cleveland, C.C.,
A.R. Townsend and S. K. Schmidt. 2002. Phosphorus
limitation of microbial processes in moist tropical
forests. Ecosystems 5:680-691. PDF
Asner, G.P.,
A.R. Townsend, W.J. Riley, P.A. Matson, J.C. Neff
and C.C. Cleveland. 2001. Modeling tropical and
semi-arid ecosystem responses to increased N deposition.
Biogeochemistry 54:1-39. PDF
Asner, G.P, A.R. Townsend and B.H. Braswell. 2000.
Satellite observation of El Niño effects
on Amazon forest productivity. Geophysical Research
Letters, 27(7):981-984. PDF
Holland, E.A.,
J.C. Neff, A.R. Townsend and B. McKeown. 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. PDF
Howarth, R.W.,
N. Jaworski, D. Swaney, A.R. Townsend, G. Billen.
2000. Some approaches for assessing human influence
on fluxes of nitrogen and organic carbon to estuaries.
In, Estuarine Synthesis: the Next Decade (J.E. Hobbie,
ed.).
Townsend, A.R. (ed.) 1999. Nitrogen Cycling in the
Temperate and Tropical Americas. Biogeochemistry
46(1-3) and also published as a book (Kluwer Academic,
Dordrecht). PDF of
Forward to Volume
Cleveland, C.C., A.R. Townsend, D.S. Schimel, H.Fisher,
R.W. Howarth, L.O. Hedin, S.S. Perakis, E.F. Latty,
J.C. Von Fischer, A. Elseroad and M.F. Wasson. 1999.
Global patterns of terrestrial biological nitrogen
(N2) fixation in natural ecosystems. Global Biogeochemical
Cycles, 13(2):623-645. PDF
Matson, P.A., W.H. McDowell, A.R. Townsend and P.M.
Vitousek. 1999. The globalization of N deposition:
ecosystem consequences. Biogeochemistry 46(1-3):67-83
PDF
Martinelli, L., M. Piccolo, A.R. Townsend, P.M.
Vitousek, E. Cuevas, W. McDowell, G.P. Robertson,
O.C. Santos and K. Treseder. 1999. Nitrogen stable
isotopic composition: tropical vs. temperate forests.
Biogeochemistry 46(1-3):45-65 PDF
Asner, G.P. A.R. Townsend and M.C. Bustamante. 1999.
Spectrometry of pasture condition and biogeochemistry
in the Central Amazon. Geophysical Research Letters
26(17):2769-2772. PDF
Townsend, A.R.,
P.M. Vitousek, D. DesMarais and A. Tharpe. 1997.
The effects of temperature and soil carbon pool
structure on CO2 and 13CO2 fluxes from five Hawaiian
soils.Biogeochemistry 38:1-17. PDF
Asner, G.P.,
T.R. Seastedt, and A.R. Townsend. 1997. The decoupling
of terrestrial carbon and nitrogen cycles. BioScience
47:226-234. PDF
Holland, E.A.,
B.H. Braswell, J.-F. Lamarque, A.R. Townsend, J.
Sulzman, J.-F. Muller, F. Dentener, G. Brasseur,
H. Levy II, J.E. Penner and G-J. Roelofs. 1997.
Variations in the predicted spatial distribution
of atmospheric nitrogen deposition and their impact
on carbon uptake by terrestrial ecosystems. J. Geophysical
Research 102(D13):15,849-15,866. PDF
Townsend, A.R., B.H. Braswell, E.A. Holland and
J.E. Penner. 1996. Spatial and temporal patterns
in terrestrial carbon storage due to deposition
of anthropogenic nitrogen. Ecological Applications
6(3):806-814. PDF
Howarth, R.W., G.Billen, D. Swaney, A.R. Townsend,
N. Jaworkski, K. Lajtha, J.A. Downing, R. Elmgren,
N. Caraco, T. Jordan, F. Berendse, J. Freney, V.
Kudeyarov, P. Murdoch and Z. Zhao-Liang. 1996. Riverine
inputs of nitrogen and phosphorus to the North Atlantic
Ocean: fluxes and human influences. Biogeochemistry
35(l):75-116.
Townsend, A.R., P.M. Vitousek and S.E. Trumbore.
1995. Soil carbon dynamics along gradients in temperature
and land-use on the island of Hawaii. Ecology 76:721-733.
Townsend, A.R.
and E.B. Rastetter. 1995. Nutrient controls over
forest carbon storage. In: Apps, M.J. and D. Price
(eds.), Forests, Forest Management, and the Global
Carbon Cycle. Springer-Verlag, Amsterdam.
Holland, E.A.,
A.R. Townsend and P.M. Vitousek. 1995. Variability
in temperature regulation of CO2, CH4 and N2O fluxes
from five Hawaiian soils: implications for a changing
climate. Global Change Biology 2:87-99.
Townsend, A.R.
and M.T. Sykes. 1995. Natural and anthropogenically-induced
variations in terrestrial carbon balance. in, Forests,
Forest Management, and the Global Carbon Cycle.
(MJ Apps and D Price eds.), Springer Verlag, Amsterdam.
Schimel, D.S.,
B.H. Braswell, E.A. Holland, R. McKeown, D.S. Ojima,
T.H. Painter and A.R. Townsend. 1994. Climatic,
edaphic and biotic controls over storage and turnover
of carbon in soils. Global Biogeochemical Cycles
8(3):279-293.
Townsend, A.R.,
P.M. Vitousek and E.A. Holland. 1992. Tropical soils
could dominate the short-term carbon cycle feedbacks
to increased global temperatures. Climatic Change
22(4):293-303.
