Robert Sanford, Jr. - Publications
Sanford, Jr., R. L., J. Saldarriaga, K. Clark, C. Uhl, and R. Herrera. 1985. Amazon rain-forest
fires. Science 227:53-55.
Sanford, Jr., R. L., H. E. Braker, and G. S. Hartshorn. 1986. Canopy openings in a primary
neotropical lowland forest. Journal of Tropical Ecology 2(3):247-251.
Vitousek, P., M. and R. L. Sanford, Jr. 1986. Nutrient cycling in moist tropical forests. Annual
Review of Ecology and Systematics 17:137-168.
Hamburg, S., and R. L. Sanford, Jr. 1986. Homo sapiens and disturbance: Long-term
consequences for ecological research. Bulletin of the Ecological Society of America
67(2):169-171.
Sanford, Jr., R. L. 1987. Apogeotropic roots in an Amazon rainforest. Science 235:1062-1064.
Sanford, Jr., R. L. 1989. Fine root biomass under a tropical forest light gap opening in Costa
Rica. Journal of Tropical Ecology 5: 139-143.
Parton, W. J., R. L. Sanford, Jr., P. A. Sanchez and J. W. B. Stewart. 1989. Modeling soil
organic matter dynamics in tropical soils. Pages 153-171, in B. Bohlool, D. Coleman and G.
Uehara (eds.). Dynamics of Soil Organic Matter in Tropical Ecosystems. University of
Hawaii Press, Honolulu.
Sanford, Jr., R. L. 1989. Root systems in three adjacent, old growth Amazon forests and
associated transition zones. Journal of Tropical Forest Science 1(3): 268-279
Sanford, Jr., R. L., W. J. Parton and C. V. Cole. 1989. Soil phosphorus interrelationships with
carbon, nitrogen and sulphur: A modeling approach. Pages 30-41, in H. Tiessen (ed.).
Phosphorus Cycling in Terrestrial and Aquatic Ecosystems. University of Saskatchewan,
Saskatoon, Canada.
Cole, C. V., and R. L. Sanford, Jr. 1989. Biological aspects of the phosphorus cycle. Pages 1016, in H. Tiessen (ed.). Phosphorus Cycling in Terrestrial and Aquatic Ecosystems.
University of Saskatchewan, Saskatoon, Canada.
Sanford, Jr., R. L. 1990. Fine root biomass under light gap openings in an Amazon rain-forest.
Oecologia 83: 541-545.
Zou, X., and R. L. Sanford, Jr. 1990. Agroforestry systems in China: a survey and classification.
Agroforestry Systems 11(1): 85-94
Sanford, Jr., R. L., W. J. Parton, D. S. Ojima and D. Jean Lodge. 1991. Hurricane effects on soil
organic matter dynamics and forest production in the Luquillo Experimental Forest, Puerto
Rico: results of simulation modelling. Biotropica 23(4a):364-372.
Zou, X., D. W. Valentine, R. L. Sanford, Jr., and D. Binkley. 1992. Resin-core and buried-bag
estimates of nitrogen mineralization and immobilization in Costa Rican lowland rainforests.
Plant and Soil 139: 275-283.
Horn, S.P., and R. L. Sanford, Jr. 1992. Holocene fires in Costa Rica. Biotropica 24(3): 354-361.
Vitousek, P. M., S. W. Andariese, P. A. Matson, L. Morris, R. L. Sanford, Jr. 1992. Effects of
harvest intensity, site preparation, and herbicide use on soil nitrogen transformations in a
young loblolly pine plantation. Journal of Forest Ecology and Management 49: 277-292.
Kauffman, J. B., R. L. Sanford, Jr., D. L. Cummings, I.H. Salcedo, and E.Y.S.B. Sampaio. 1993.
Biomass and Nutrient dynamics associated with fires of varying intensity in slashed
neotropical dry forest. Ecology 74(1): 140-151.
Kalkhan, M.A., R. M. Reich, and R. L. Sanford, Jr. 1993. Spatial analysis of canopy openings in
primary lowland neotropical forest. American Society of Photogrametry and Remote
Sensing, Proceedings 48: 322-330.
Sanford, Jr., R. L., J. Luvall, P. Paaby, and E. Phillips. 1994. The La Selva ecosystem: climate,
geomorphology, and aquatic systems. Pages 19-33 in L. McDade, K. Bawa, G. Hartshorn,
and H. Hespenheide (eds.). La Selva: The Ecology and Natural History of a Neotropical
Rainforest. University of Chicago Press.
Sollins, P., F. Sancho, R. Mata and R. L. Sanford, Jr. 1993. Soils and soil process. Pages 34-63 in
L. McDade, K. Bawa, G. Hartshorn, and H. Hespenheide (eds.). La Selva: The Ecology and
Natural History of a Neotropical Rainforest. University Chicago Press.
Vitousek, P. M., D. R. Turner, W.J. Parton and R. L. Sanford, Jr. 1994. Litter decomposition on
the Mauna Loa environmental matrix, Hawaii: patterns, mechanisms and models. Ecology
75: 418-429.
Rhoades, C.C., R. L. Sanford, Jr., and D. B. Clark. 1994. Gender dependent influence on soil
properties by Simarouba amara a dieocious, lowland tropical tree. Biotropica in Press 26:
362-368.
Ryan, M.G., R.M. Hubbard, D.L. Clark and R.L. Sanford, Jr. 1994. Woody tissue respiration for
a fast and slow growing tropical hardwood. Oecologia 100: 213-220.
Jaramillo, V. J. and R. L. Sanford, Jr. 1995. Nutrient cycling in tropical deciduous forests. In
S.H. Bullock, E. Medina, and H.A. Mooney (eds). Tropical Deciduous Forest Ecosystems.
Cambridge University Press.
Fernandes, D.P., and R.L. Sanford, Jr. 1995. Effects of recent land use practices on soil nutrients
and succession under tropical wet forest in Costa Rica. Conservation Biology 9:915-922.
Sanford, Jr., R. L. 1996. Root growth and rhizosphere interactions in tropical forests. Pages 268300 In S.S. Mulkey, R. L. Chazdon, and A. P. Smith (eds.) Tropical Forest Plant
Ecophysiology. Chapman and Hall, New York.
Williams, M.W., J.S. Baron, N. Caine, R. Sommerfield, and R.L. Sanford, Jr. 1995. Nitrogen
saturation in the Rocky Mountains. Environmental Science and Technology 30:640-646.
Belnap, J., R.L. Sanford, Jr. and L. Lungu 1996. Biological soil crusts: ecological roles and
response to fire in miombo woodlands of Zimbabwe. Trans. Zimbabwe Sci. Assoc. 70: 1420.
Kershaw, A.P., M.B. Bush, G.S. Hope, K.-F. Weiss, J.G. Goldammer, R.L. Sanford, Jr. 1997.
The contribution of humans to past biomass burning in the tropics. Pages 413-442 In J.S.
Clark, H. Cachier, J.G. Goldammer, and B. Stocks (eds.) Sediment Records of Biomass
Burning and Global Change. Springer-Verlag, Berlin, Germany.
Garcia-Oliva F, R.L. Sanford Jr. and E. Kelly, 1998. Effect of burning of tropical deciduous
forest soil in Mexico on the microbial degradation of organic matter. Plant and Soil 206: 2941.
Denslow J., A. Ellison and R.L. Sanford Jr. 1998. Treefall gap size effects on above and below
ground processes in tropical wet forest. Journal of Ecology 86: 597-609.
Parker, E.R. and R.L. Sanford, Jr. 1999. The effects of mobile tree islands on soil phosphorus
concentrations and distribution in an alpine ecosystem on niwot Ridge, Colorado Front
Range, U.S.A.. Arctic and Alpine Research 31:16-20.
Garcia-Oliva, F., R.L. Sanford, Jr. and E. Kelly. 1999. Effects of slash-and-burn agriculture on
soil aggregate organic C and N an a tropical deciduous forest. Geoderma 88:1-12.
Dockersmith, I.C., C.G. Giardina and R.L. Sanford, Jr. 1999 Persistence of tree related patterns
in soil nutrients following slash and burn agriculture in the tropics. Plant and Soil 209:137156.
Giardina, C.P., R.L. Sanford, Jr., and I.C. Dockersmith 2000. Changes in soil phosphorus, carbon
and nitrogen during slash and burn disturbance of a tropical dry forest. Soil Science Society
of America Journal 64(1):399-405.
Raich, J.W., W.J. Parton, A.E. Russell, R.L. Sanford, Jr. and P.M. Vitousek, 2000. Analysis of
factors regulating ecosystem development on Mauna Loa using the Century model.
Biogeochemistry 51:161-191.
Giardina, C.G., R.L. Sanford, Jr., I.C. Dockersmith, and V.J. Jaramillo 2000. The effects of slash
burning on ecosystem nutrients during the land preparation phase of shifting cultivation.
Plant and Soil 220:247-260.
Ellingson, L.J., J.B. Kauffman, D.L. Cummings, R.L. Sanford Jr., V.J. Jaramillo. 2000. Soil N
dynamics associated with deforestation, biomass burning, and pasture conversion in a
Mexican tropical dry forest. Forest Ecology and Management 137:41-51.
Sanford Jr., Robert L.; Horn, Sally P. 2000. Holocene rain-forest wilderness: A neotropical
perspective on humans as an exotic, invasive species IN McCool, Stephen, F. et al.
Wilderness science in a time of change. Volume 3: Wilderness as a place for scientific
inquiry; 1999 May 23-27; Missoula, MT. Proceedings RMRS-P-15-VOL3. Ogden, UT: U.S.
Department of Agriculture, Forest Service, Rocky Mountain Research Station.
Castellanos, J., V.J. Jaramillo, R.L. Sanford, Jr., and J. Boone Kauffman 2001. Slash-and-burn
effects on fine root biomass and productivity in a tropical dry forest ecosystem in
Mexico.Forest Ecology and Management 148(1-3):41-50.
Shiels, A.B. and R.L. Sanford, Jr. 2001. Soil nutrient differences between two krummholz-form
tree species and adjacent alpine tundra. Geoderma 102:205-217.
Horn, S.P., R.L. Sanford, Jr., D. Dilcher, T.A. Lott, P.R. Renne, M.C. Wiemann, D. Cozadd and
O. Vargas 2003. Pleistocene plant fossils in and near La Selva Biological Station, Costa Rica.
Biotropica 35(3):434-441
Schwinning, S., B.I. Starr, N.J. Wojcik, M.E. Miller, J.E. Ehleringer, and R.L. Sanford Jr., 2005.
Effects of nitrogen deposition on an arid grassland in the Colorado Plateau cold desert.
Rangeland Ecology & Management 58(6):565-574
Boyce, R., J. Larson and R.L. Sanford, Jr. 2006. Nitrogen and phosphorus photosynthetic colimitation in Rocky Mountain pine (Pinus aristata) Tree Physiology 26: 1477-1486.
Neff, J.C., R. Reynolds, R.L. Sanford, Jr., D. Fernandez and P. Lamothe. 2006. Geologic
controls over soil and plant chemistry in Southeastern Utah. Ecosystems 9: 870-893.
Withington, C.L. and R.L. Sanford, Jr. 2007. Decomposition rates increase with altitude in the
forest-alpine tundra ecotone. Soil Biology and Biochemistry 39: 68-75.
Titiz, B and R.L. Sanford, Jr., 2007. Soil charcoal in tropical old-growth forest from the
Continental Divide to sea level. Biotropica 39(6):673-682.
Housman, D.C., C.M. Yeager, B.J. Darby, R.L. Sanford, Jr., C.R. Kuske, D.A. Neher, and J.
Belnap. 2007. Heterogeneity of soil nutrients and subsurface biota in dryland ecosystems: the
role of vascular plants and biological soil crusts. Soil Biology and Biochemistry 39(8):21382149.
Helmig, D., B Seok, J. Hueber, R.L.Sanford, Jr., and M. Williams. 2009. Fluxes and Chemistry
of Nitrogen Oxides in the Niwot Ridge, Colorado, Snowpack. Biogeochemistry 95(1):115130.
Jaramillo, V.J., A. Martínez-Yrízar, and R.L. Sanford Jr. 2010. Primary Productivity and
Biogeochemistry of Primary and Secondary Tropical Dry Forests IN: Seasonally Dry
Tropical Forests. R. Dirzo and H.S. Young, H.A. Mooney and G. Ceballos, Eds. Island
Press, Washington, DC.
Lott, T. A., D.L. Dilcher, S. P. Horn, O. Vargas, R. L. Sanford Jr. 2011. Pleistocene flora of Rio
Puerto Viejo, Costa Rica. Palaeontologia Electronica http://palaeo-electronica.org
Titiz, B., R.L. Sanford, Jr. and N. Wojcik. Soil phosphorus forms and amount change with
elevation in old-growth rainforest. In revision for Catena.
Liptzin, D., R.L. Sanford, Jr. and T.R. Seastedt. Spatial patterns of total and available N and P at
treeline. Submitted to Plant and Soil.
Licata, C. and .L. Sanford, Jr. Ecology of soil charcoal in fire-adapted temperate conifer forests:
a review. Submitted to Geoderma.