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Records 26 to
50
of 68 records from author Roxanne Johnson
2011
HANSON, ALANA, C. WIGAND, R. L. JOHNSON, A. OCZKOWSKI, E. W. DAVEY, AND E. MARKHAM. Sea Level Rise and Climate Change Effects on Marsh Plants Spartina Alterniflora and Typha Angustifolia Using Mesocosms. Presented at Coastal and Estuarine Research Federation (CERF) 21st Biennial Conference. Societies, Estuaries and Coasts: Adapting to Change, Daytona Beach, FL, November 06 - 10, 2011.
WIGAND, C., E. W. DAVEY, R. L. JOHNSON, R. S. Warren, AND D. S. Johnson. Use of CT imaging to examine the coarse roots, rhizomes, and peat associated with creek bank Spartina alterniflora in fertilized and control creeks in Plum Island (MA). Presented at New England Estuarine Research Society Spring Meeting, Port Jefferson, Long Island, NY, May 05 - 07, 2011.
DAVEY, E. W., C. WIGAND, R. L. JOHNSON, K. Sundberg, J. Morris, AND C. T. Roman. Use of Computed Tomography Imaging for Qualifying Coarse Roots, Rhizomes, Peat, and Particle Densities in Marsh Soils. ECOLOGICAL APPLICATIONS. Ecological Society of America, Ithaca, NY, 21(6):2156-2171, (2011).
DAVEY, E. W., C. WIGAND, R. L. JOHNSON, K. SUNDBERG, J. MORRIS, AND C. T. ROMAN. Use of Computer-Aided Tomography (CT) Imaging for Quantifying Coarse Roots, Rhizomes, Peat, and Particle Densities in Marsh Soils. Presented at The Coastal Estuarine Research Federation Meeting (CERF) 21st Biennial Conference. Societies, Estuaries and Coasts: Adapting to Change, Daytona Beazh, FL, November 06 - 10, 2011.
2010
WIGAND, C., E. W. DAVEY, R. L. JOHNSON, AND C. Roman. Assessment of Roots, Rhizomes, and Soil Respiration in Disturbed Wetlands. Presented at 95th Ecological Society of America Annual Meeting 2010, Pittsburg, PA, August 01 - 06, 2010.
WIGAND, C., E. W. DAVEY, AND R. L. JOHNSON. Nitrogen Over-enrichment Effects on Belowground Structure in Coastal Wetlands and Implications for Delivery of Ecosysytem Services. Presented at ORD Ecolosystem Services Research Program (ESRP) 3rd Annual Conference, Las Vegas, NV, October 19 - 21, 2010.
2009
JOHNSON, R. L., C. WIGAND, B. Carlisle, J. Smith, M. Carullo, D. Fillis, M. Charpentier, AND R. A. MCKINNEY. Development and Validation of Rapid Assessment Indices for Condition of Coastal Wetlands in Southern New England USA. Presented at Coastal and Estuarine Research Federation 20th Biennial Conference: Estuaries and Coasts in a Changing World, Portland, OR, November 01 - 05, 2009.
HO, K. T., M. L. Gielazyn, M. C. PELLETIER, R. M. BURGESS, M. G. CANTWELL, M. PERRON, J. R. SERBST, AND R. L. JOHNSON. Do Toxicity Identification and Evaluation Laboratory-Based Methods Reflect Causes of Field Impairment? ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY. Society of Environmental Toxicology and Chemistry, Pensacola, FL, 43(17):6857-6863, (2009).
WIGAND, C., E. W. DAVEY, K. Sundberg, J. Morris, P. Kenny, R. L. JOHNSON, AND C. Roman. Effect of fertilization on Soil Respiration and Belowground Macro-organic Matter in Spartina alternatflora Marsh Soils. Presented at Coastal and Estuarine Research Federation 20th Biennial Conference: Coast and Estuaries in a Changing World, Portland, OR, November 01 - 05, 2009.
WIGAND, C., E. W. DAVEY, R. L. JOHNSON, M. Stolt, M. Holt, R. TIEN, AND L. Gamez. Soil Respiration and Belowground Carbon Stores Among Salt Marshes Subjected to Increasing Watershed Nitrogen Loadings in Southern New England. Presented at New England Estuarine Research Society Spring 2009 Meeting, Salem, MA, April 02 - 04, 2009.
2008
JOHNSON, R. L., K. T. PEREZ, K. J. ROCHA, E. W. DAVEY, AND J. A. CARDIN. DETECTING BENTHIC COMMUNITY DIFFERENCES: INFLUENCE OF STATISTICAL INDEX AND SEASON. ECOLOGICAL INDICATORS. Elsevier Science Ltd, New York, NY, 8(5):582-587, (2008).
HO, K. T., R. Lazalere, H. Smith, M. C. PELLETIER, AND R. L. JOHNSON. Sediment Grain Size Measurements: Is There a Differenc Between Digested and Un-digested Samples? And Does the Organic Carbon of the Sample Play a Role. Presented at SETAC North American 29th Annual Meeting, Tampa, FL, November 16 - 20, 2008.
DAVEY, E. W., K. T. PEREZ, AND R. L. JOHNSON. The Power of Computer-aided Tomography to Investigate Marine Benthic Communities. Presented at 2008 Benthic Ecolohy Meeting, Providence, RI, April 09 - 13, 2008.
2007
JOHNSON, R. L., K. T. PEREZ, E. W. DAVEY, K. J. ROCHA, AND J. A. CARDIN. PROPOSED CRITERION TO DEFINE ANTHROPOGENIC IMPACT ON ESTUARINE COMMUNITIES USING BRAY-CURTIS SIMILARITY INDEX. Presented at Estuarine Research Federation Biennial Conference, Providence, RI, November 04 - 08, 2007.
ROCHA, K. J., K. T. PEREZ, E. W. DAVEY, AND R. L. JOHNSON. USING ACOUSTIC SEDIMENT MAPPING AND COMPUTER AIDED TOMOGRAPHY (CT) TO CHARACTERIZE SHALLOW WATER ESTUARINE SYSTEMS. Presented at Estuarine Research Federation Biennial Conference, Providence, RI, November 04 - 08, 2007.
2006
DAVEY, E. W., K. T. PEREZ, J. A. CARDIN, R. L. JOHNSON, AND K. J. ROCHA. UTILIZING COMPUTER-AIDED TOMOGRAPHY FOR BENTHIC ECOLOGICAL INVESTIGATIONS. Presented at The North Atlantic Benthological Soceity Meeting, Anchorage, AK, June 04 - 09, 2006.
2005
PELLETIER, M. C., K. T. HO, R. M. BURGESS, D. E. CAMPBELL, K. T. PEREZ, M. G. CANTWELL, K. J. ROCHA, M. M. PERRON, J. A. CARDIN, R. L. JOHNSON, AND E. W. DAVEY. A NEW METHOD FOR DIAGNOSING CAUSES OF IMPAIRMENT IN ESTUARIES: THE POLLUTANT IDENTIFICATION EVALUATION (PIE) APPROACH. Presented at Estuarine Research Federation Conference 2005, Norfolk, VA, October 16 - 20, 2005.
DAVEY, E. W., K. T. PEREZ, J. A. CARDIN, R. L. JOHNSON, K. J. ROCHA, AND C. WIGAND. APPLICATION OF 2 & 3D COMPUTER-AIDED TOMOGRAPHY TO MARINE BENTHIC AND MARSH COMMUNITIES. Presented at Estuarine Research Federation Conference 2005, Norfolk, VA, October 16 - 21, 2005.
JOHNSON, R. L., J. A. CARDIN, K. T. PEREZ, E. W. DAVEY, AND K. J. ROCHA. DETECTING BENTHIC COMMUNITY DIFFERENCES: THE INFLUENCES OF STATISTICAL METRIC AND SEASON. Presented at Estuarine Research Federation Conference 2005, Norfolk, VA, October 16 - 21, 2005.
HO, K. T., D. E. CAMPBELL, R. M. BURGESS, M. C. PELLETIER, K. T. PEREZ, M. G. CANTWELL, K. J. ROCHA, M. M. PERRON, J. A. CARDIN, R. L. JOHNSON, AND E. W. DAVEY. DIAGNOSING STRESSORS IN ESTUARINE SYSTEMS: THE POLLUTANT IDENTIFICATION AND EVALUATION (PIE). Presented at EPA Science Forum 2005, Washington, DC, May 16 - 18, 2005.
HO, K. T., M. L. GIELAZYN, R. M. BURGESS, M. C. PELLETIER, J. R. SERBST, S. A. RYBA, M. M. PERRON, M. G. CANTWELL, R. L. JOHNSON, K. T. PEREZ, D. WASSENBEBERG, AND R. DI GUILIO. DO TIE LABORATORY BASED METHODS REALLY REFLECT FIELD CONDITIONS. Presented at Society of Environmental Toxicology and Chemistry-Europe 2005, Lille, FRANCE, May 22 - 26, 2005.
Ho, K T., M. L. Gielazyn, R M. Burgess, M Pelletier, J R. Serbst, S Ryba, M. M. Perron, M Cantwell, R L. Johnson, K T. Perez, D. Wassenberg, AND R. T. Di Giulio. DO TIE LABORATORY BASED METHODS REALLY REFLECT FIELD CONDITIONS? Presented at Society of Environmental Toxicology and Chemistry-Europe 2005 Conference, Lille, France, May 22-26, 2004.
HO, K. T., M. L. GIELAZYN, R. M. BURGESS, M. C. PELLETIER, J. R. SERBST, S. A. RYBA, M. M. PERRON, M. G. CANTWELL, R. L. JOHNSON, K. T. PEREZ, D. M. WASSENBERG, AND R. DI GUILIO. EPA SCIENCE FORUM 2005 PRESENTATION: DO LABORATORY BASED METHODS TO IDENTIFY CAUSE OF TOXICITY IN SEDIMENTS REALLY REFLECT FIELD CONDITIONS? Presented at EPA Science Forum 2005, Washington, DC, May 16 - 18, 2005.
Ho, K T., R M. Burgess, M Pelletier, D E. Campbell, K T. Perez, M Cantwell, K J. Rocha, J A. Cardin, R L. Johnson, AND E W. Davey. SEDIMENT TOXICITY IDENTIFCATION EVALUATION (TIE) AND THE TMDL PROCESS. Presented at 3rd International Conference on Remediation of Contaminated Sediments, New Orleans, LA, January 24-27, 2005.
PERRON, M. M., M. C. PELLETIER, K. T. HO, R. M. BURGESS, K. T. PEREZ, M. G. CANTWELL, K. J. ROCHA, J. A. CARDIN, R. L. JOHNSON, AND E. W. DAVEY. THE PIE APPROACH: PRELIMINARY RESULTS OF THE NARRGANSETT BAY CASE STUDY. Presented at Estuarine Research Federation Conference 2005, Norfolk, VA, October 16 - 20, 2005.