Science Inventory

Records 51 to 75 of 79 records from author Roger Burke

2004

Varella, R., M. Bustamante, A. Pinto, K. Kisselle, R. Santos, R A. Burke Jr., R G. Zepp, AND L. Viana. SOIL FLUXES OF CO2, CO, NO AND N2O FROM AN OLD-PASTURE AND FROM NATIVE SAVANNA IN BRAZIL. ECOLOGICAL APPLICATIONS 14(4 Supplement):S221-S231, (2004).

2003

Burke Jr., R A. AND J. Molinero. BIOGEOCHEMICAL INDICATORS IN SMALL PIEDMONT STREAMS. Presented at Scientific Meeting with EPA Region 8, Denver, CO, November 4, 2003.

Molinero, J. AND R A. Burke Jr. DISSOLVED ORGANIC CARBON (DOC) CONCENTRATIONS IN SMALL STREAMS OF THE GEORGIA PIEDMONT. Presented at North American Benthological Society Annual Meeting, Athens, GA, May 27-31, 2003.

Kisselle, K., R G. Zepp, M Molina, R A. Burke Jr., AND A. J. Franzluebbers. EFFECTS OF FERTILIZER TYPE (CHICKEN LITTER VS. INORGANIC FERTILIZER) AND CATTLE GRAZING ON THE SOIL MICROBIAL COMMUNITY. Presented at 2003 Annual Symposium: Soil Biodiversity and Function, Lancaster, United Kingdom, March 25-27, 2003.

Burke Jr., R A. AND M Molina. FATTY ACID STABLE ISOTOPE INDICATORS OF MICROBIAL CARBON SOURCE IN TROPICAL SOILS. Presented at Soil Science Society of America Annual Meeting, Denver, CO, November 2-6, 2003.

Molinero, J. AND R A. Burke Jr. RELATIONS BETWEEN LAND USE AND STREAM NUTRIENT CONCENTRATIONS FOR SMALL WATERSHEDS IN THE GEORGIA PIEDMONT. In Proceedings, 2003 Georgia Water Resources Conference, Athens, GA, April 23 - 24, 2003. University of Georgia, Athens, GA, 821-824, (2003).

Burke Jr., R A., M Molina, J E. Cox, L. J. Osher, AND M. C. Piccolo. STABLE CARBON ISOTOPE RATIO AND COMPOSITION OF MICROBIAL FATTY ACIDS IN TROPICAL SOILS. JOURNAL OF ENVIRONMENTAL QUALITY 32(1):198-206, (2003).

Burke Jr., R A. AND J. Molinero. TRACE GAS AND NUTRIENT CONCENTRATIONS IN SMALL STREAMS OF THE GEORGIA PIEDMONT. Presented at Invited Seminar at the Joseph W. Jones Ecological Research Center, Newton, GA, August 21, 2003.

Burke Jr., R A. AND J. Molinero. TRACE GAS CONCENTRATIONS IN SMALL STREAMS OF THE GEORGIA PIEDMONT. In Proceedings, 2003 Georgia Water Resources Conference, Athens, GA, April 23 - 24, 2003. University of Georgia, Athens, GA, 842-845, (2003).

2002

Molina, M AND R A. Burke Jr. 13C-DEPLETED MICROBIAL LIPIDS INDICATE SEASONAL METHANOTROPHIC ACTIVITY IN SHALLOW ESTUARINE SEDIMENTS. Presented at American Society of Limnology and Oceanography Conference, Victoria, Canada, June 10-14, 2002.

Burke Jr., R A. A BOOK REVIEW OF "ECOLOGICAL INDICATORS FOR THE NATION". JOURNAL OF ENVIRONMENTAL QUALITY 31(3):1045, (2002).

Molinero, J. AND R A. Burke Jr. ASSESSING NON-POINT SOURCES OF NITROGEN TO SMALL STREAMS IN THE SOUTH FORK BROAD RIVER WATERSHED (GEORGIA, USA). Presented at VII International Congress of Ecology, Seoul, Korea, August 11-18, 2002.

Burke Jr., R A. AND J. Molinero. NITROUS OXIDE CONCENTRATIONS IN SMALL STREAMS OF THE GEORGIA PIEDMONT. Presented at American Society of Agronomy-Crop Science Society of America-Soil Science Society of America Annual Meeting, Indianapolis, IN, November 10-14, 2002.

Kisselle, K., R G. Zepp, R A. Burke Jr., A. Pinto, AND M. Bustamante. NOX AND CO EMISSIONS FROM SOIL AND SURFACE LITTER IN A BRAZILIAN SAVANNA. Presented at 2nd Science Meeting for the Large Atmosphere and Biosphere in Amazonia (LBA), Manaus, Brazil, July 7-10, 2002.

Kisselle, K., R G. Zepp, R A. Burke Jr., S. P. Opsahl, A. Pinto, M. Bustamante, L. Viana, AND R. Varella. SEASONAL SOIL FLUXES OF CARBON MONOXIDE IN BURNED AND UNBURNED BRAZILIAN SAVANNAS. JOURNAL OF GEOPHYSICAL RESEARCH 107(D20):8051-8051, (2002).

Pinto, A., M. Bustamante, L. Viana, R. Varella, R G. Zepp, R A. Burke Jr., M Molina, AND K. Kisselle. SOIL EMISSIONS OF N2O, NO AND CO2 IN BRAZILIAN SAVANNAS: EFFECTS OF VEGETATION TYPE, SEASONALITY, AND PRESCRIBED FIRES. JOURNAL OF GEOPHYSICAL RESEARCH 107(D20):8089-8089, (2002).

Burke Jr., R A. AND M Molina. USE OF FATTY ACID STABLE CARBON ISOTOPE RATIO TO INDICATE MICROBIAL CARBON SOURCE IN TROPICAL SOILS. Presented at 3rd Annual International Conference on Application of Stable Isotope Techniques to Ecological Studies, Flagstaff, AZ, April 28-May 1, 2002.

2001

Bustamante, M., A. Pinto, L. Viana, G. Nardoto, R G. Zepp, R A. Burke Jr., M Molina, AND K. Kisselle. EFFECTS OF PRESCRIBED FIRES ON NITROGEN FLUXES IN SAVANNA FORMATIONS OF CENTRAL BRAZIL. Presented at Large Scale Biosphere-Atmosphere Experiment in Amazonia Open Meeting, Atlanta, GA, February 12-14, 2001.

Kisselle, K., R G. Zepp, R A. Burke Jr., A. Pinto, AND M. Bustamante. PHOTOCHEMICAL EFFECTS ON NOX AND CO EMISSIONS IN A BRAZILIAN SAVANNA. Presented at Ecological Society of America Meeting, Madison, WI, August 5-10, 2001.

Pinto, A., M. Bustamante, L. Viana, R G. Zepp, R A. Burke Jr., M Molina, AND K. Kisselle. SOIL EMISSIONS OF CO2 AND CO IN TROPICAL SAVANNAS OF CENTRAL BRAZIL UNDER DIFFERENT FIRE REGIMES. Presented at Large Scale Biosphere-Atmosphere Experiment in Amazonia Open Meeting, Atlanta, GA, February 12-14, 2001.

Burke Jr., R A. USE OF GC-MS/COMBUSTION/IRMS TO IDENTIFY AND DETERMINE THE STABLE CARBON ISOTOPIC RATIO OF INDIVIDUAL LIPIDS. Presented at 221st American Chemical Society National Meeting, San Diego, CA, April 1-5, 2001.

2000

Molina, M, R A. Burke Jr., AND J E. Cox. EFFECT OF TEMPERATURE ON THE C ISOTOPIC VALUE OF MICROBIAL LIPIDS APPLIED TO DETERMINE C USAGE IN MICROBIAL COMMUNITIES. Presented at American Society for Microbiology Annual Meeting, Los Angeles, CA, May 21-25, 2000.

Pinto, A., R. Varella, G. Nardoto, L. Viana, L. Andrade, R. Chiba, R. Santos, M. Bustamante, R A. Burke Jr., M Molina, R G. Zepp, K. Kisselle, AND S. P. Opsahl. IMPACTS OF LAND USE CHANGE AND FIRE ON NUTRIENT AND CARBON CYCLES AND TRACE GAS EXCHANGE IN SOILS OF THE CERRADO IN CENTRAL BRAZIL. Presented at First Large Scale Biosphere-Atmospheric Experiment in Amazonia (LBA) Scientific Conference, Belem, Brazil, June 26-30, 2000.

Pinto, A., R. Varella, G. Nardoto, L. Viana, L. Andrade, R. Chiba, R. Santos, M. Bustamante, R A. Burke Jr., K. Kisselle, M Molina, AND R G. Zepp. INTERACTIONS OF NUTRIENT AND CARBON CYCLES AND TRACE GAS EXCHANGE WITH LAND USE CHANGE AND FIRE IN THE CERRADO OF CENTRAL BRAZIL. Presented at American Geophysical Union Meeting, San Francisco, CA, December 15-20, 2000.