Brulle, Robert J. "Toward
an Ecologically Sustainable Urban Environment", presented
at the annual American Sociological Association Conference, Anaheim,
CA, August 19, 2001.
Brulle, Robert J. "Social Theory and Ecological Sustainability" presented at Northwestern University, Evanston IL, November 14, 2002.
Brulle, Robert J., Connecting Social Facts and Natural Facts: An Interdisciplinary Research Challenge, presented at the University of Colorado, Boulder, CO, November 18, 2002.
Brulle, Robert J. "Linking Social Facts and Natural Facts: Beyond Anthropocentric Social Theory", Presented at the Annual Eastern Sociological Association Conference, Philadelphia, PA, March 2003.
Dispensa, Jaclyn. "The Sprawling Frontier: The Politics of Watershed Management in the Valley Creek Watershed, Pennsylvania", Seminar presented to the Department of Sociology, Drexel University, July 17, 2002.
Dispensa, J. M. and Robert J. Brulle, Zoning Policies and Prevention of Sprawling Development: Do They Really Work Together? Presented at the 2002 Annual Meeting of the American Water Resources Association, Nov 3 - 7, 2002, Philadelphia, PA
Dispensa, Jaclyn and Robert J. Brulle. "The Sprawling Frontier: The Politics of Watershed Management in the Valley Creek Watershed, Pennsylvania", Presented at the Annual American Sociological Association Conference, August 2002.
Dispensa, Jaclyn. "The Sprawling Frontier: The Politics of Watershed ", Seminar presented to SESEP, Drexel University, September 25, 2002.
Dispensa, Jaclyn. Accepted speaking engagement at Rutgers University Conference on New Jersey Environments, April 26, 2003, New Brunswick, New Jersey "Learning from the Past to Prepare for the Future."
Dispensa, Jaclyn. "The Sprawling
Frontier: The Politics of Watershed Management in Valley Creek
Watershed, Pennsylvania." Society for the Study of Social
Problems Annual Conference, August 16, 2003, Atlanta, Georgia.
Dispensa, Jaclyn. "An Empirical Study on Zoning's Contribution
to Sprawl and Environmental Degradation", Ph.D. Dissertation
Proposal, Dept. of Culture and Communications, May 1, 2003.
Dispensa, Jaclyn. "Separation
of Use or Misuse: Multifacted Empirical Study of Zoning Variances",
PhD Dissertation. Department of Culture and Communications, Drexel
University, June 2004.
Dispensa, Jaclyn. "Separation of Use or Misuse", Presented
at the Urban Watershed Summit, Wilmington, Delaware, September
2004.
Dispensa, Jaclyn and R. J. Brulle,
"The Environmental Effects of Zoning Variances", Presented
to the Schuylkill River Congress, March 6, 2004.
Dispensa, Jaclyn and R. J. Brulle, "The Sprawling Frontier:
Politics of Watershed Management", submitted to Rural
Sociology, December 17, 2003.
Dispensa, Jaclyn and R. J. Brulle, "Zoning Boards and
Development: How Do They Interact?", submitted to City
& Community, January 22, 2004.
Emerson, Clay. "Stormwater Modeling in Valley Creek Watershed". M.S. Thesis Proposal, School of Environmental Science, Engineering, and Policy, Drexel University, October 11, 2001.
Emerson, C., R. Traver, and C. Welty, "Modeling the Effects of Multiple Detention Basins on Stormwater Flow at the Watershed Scale", Presented at the 2002 Annual Meeting of the American Water Resources Association, Nov 3 - 7, 2002, Philadelphia, PA.
Emerson, Clay. "Stormwater Management in Valley Creek Watershed". Seminar presented to Pennsylvania Department of Environmental Protection, Southeast Office. Conshohocken, PA. January 17, 2003.
Emerson, Clay. "Documenting the Effects of Urban Sprawl in Valley Creek Watershed, Presented to Rowan University, Advanced Water Resources Class, January 28, 2003.
Emerson, Clay, R. Traver and C.
Welty. "Detention Basins in Valley Creek Watershed"
Presented to Valley Creek Partnership, May 1, 2003.
Emerson, Clay. "Release Rate Stormwater Management in the
Valley Creek Watershed" Presented to the U.S. Environmental
Protection Agency Region III Office, June 16, 2003.
Emerson, C., C. Welty, and R.
Traver, "Application of HEC-HMS to Model the Additive Effects
of Multiple Detention Basins Over a Range of Measured Storm Volumes",
Presented at ASCE EWRI, June 24, 2003 , Philadelphia, PA. Published
in conference proceedings.
Emerson, Clay H., R. G. Traver,and C. Welty. Changing from Peak
Flow to Volume Requirements: A Watershed-Wide Perspective. Presented
at the bi-annual conference of the Urban Stormwater Partnership,
Villanova, PA, Oct 16-17, 2003.
Emerson, C. H., C. Welty, R. G. Traver, "A Watershed-Scale
Evaluation of a System of Stormwater Detention Basins", ASCE
J Hydrologic Engineering, 10(3), 237-242, 2005.
Emerson, Clay, C. Welty, and R. Traver ,"Evaluation of the
Effectiveness of a System of Stormwater Detention Basins at the
Watershed Scale", Presented to the Schuylkill River Congress,
March 6, 2004.
Emerson, Clay. "Valley Creek
Case Study: Stormwater Management at the Watershed Scale"
Presented at the University of Maryland at Baltimore County, May
7, 2004.
Kilham, S.S. ""Biotic Responses to Urbanization in Valley
Creek Watershed, PA", presented to Drexel University, Environmental
Seminar Series, May 23, 2003.
Kilham, S.S. ""Biotic Responses to Urbanization in Valley Creek Watershed, PA", presented to UMBC, Environmental Seminar Series, October 31, 2003.
Kilham, S.S. and L.Y.Steffy. "Connecting
elevated d15N in aquatic food webs with septic systems" Presented
to the Schuylkill River Congress, March 6, 2004.
Kilham. S.S. "Observations of the Effects of Urbanization
on Biotic Processes in Valley Creek Watershed" Presented
to the Valley Creek Partnership, Summit I, April 20, 2004 .
McGinty, Angela. "Evaluation
of the Groundwater Resources of Valley Creek Watershed."
M.S. Thesis Proposal, School of Environmental Science, Engineering,
and Policy, Drexel University, October 8, 2002.
McGinty,
Angela L. "Geostatistical Evaluation of the Effects of Urbanization
on Spring Water Quality in Valley Creek Watershed". MS Thesis,
Department of Civil, Architectural, and Environmental Engineering,
Drexel University, Philadelphia, PA., October 2003.
McGinty, Angela, and C. Welty, "Geostatistical Analysis of Geologic and Anthropogenic Controls on Spring Water Quality in Valley Creek Watershed", Presented to the Schuylkill River Congress, March 6, 2004.
Ryan, Robert J. "Impacts of Urbanization on Hyporheic Zone Characteristics, Nutrient Uptake Dynamics, and Community Metabolism of Valley Creek", Ph.D. Thesis Proposal, School of Environmental Science, Engineering, and Policy, Drexel University, November 2, 2001.
Ryan, Robert J., A. I. Packman, and C. Welty, "Effects of Anthropogenic Modification of Stream Flow in a Small Urbanizing Watershed", Presented at International Association of Sediment Water Science, 9th IASWS Symposium held in Banff, Canada, May, 2002.
Ryan, Robert, "The Hyporheic Zone as a Pathway Between Land Use Change and Aquatic Community Metabolism Impacts in the Valley Creek Watershed", Seminar presented to PA DEP, June 13, 2002.
Ryan, R. J. , A. I. Packman, and
S.S. Kilham, "The Impacts of Urbanization on Hyporheic Exchange
and Nutrient Dynamics in Valley Creek", Presented at the
2002 Annual Meeting of the American Water Resources Association,
Nov 3 - 7, 2002, Philadelphia, PA.
Ryan,
Robert J., A.I. Packman, and C. Welty. "Estimation of Solute
Transport and Storage Parameters in a Stream with Anthropogenically
Produced Unsteady Flow and Industrial Bromide Input", Water
Resources Research, 40, W01602, doi:10.1029/2003WR002458,
2004.
Ryan, R.J., and I.A. Packman.,
"The Impacts of Urbanization on Geomorphology and Hydrology
of Valley Creek ", Presented to the Schuylkill River Congress,
March 6, 2004.
Ryan, R.J., and I.A. Packman. "Influence of Fine Sediments
on Solute Transport in an Urbanizing Watershed," Presented
at the 2004 Spring Meeting of the American Geophysical Union,
Montreal, Canada, May 17-21, 2004.
Ryan, R. J. "The Impact of Urbanization on the Transient
Storage Characteristics, Phosphorus Uptake Dynamics and Community
Metabolism of Valley Creek". Ph.D. Dissertation, Drexel University,
Department of Civil, Architectural, and Environmental Engineering.
Philadelphia, PA, May 2004.
Ryan, R. J. and A. I. Packman. "Changes in Streambed Sediment
Characteristics and Solute Transport in the Headwaters of Valley
Creek, an Urbanizing Watershed", Journal
of Hydrology, 323, 74-91, doi: 10.1016/j.jhydrol.2005.06.042.
Ryan, R.J., A.I. Packman, and S.S. Kilham. ""Relating
phosphorus uptake to changes in transient storage and streambed
sediment characteristics in the headwaters of Valley Creek, an
urbanizing watershed", submitted to Journal of Hydrology,
8/6/06.
Steffy, Luanne. "Effects
of Land-Use Changes on the Ecology of Valley Creek", M.S.
Thesis Proposal, School of Environmental Science, Engineering,
and Policy, Drexel University, November 29, 2001.
Steffy, Luanne. "Effects of Land-Use
Changes on the Ecology of Valley Creek", M.S. Thesis, Department
of Bioscience, Drexel University, June 2003.
Steffy, L.Y. and S. S.
Kilham, "Quantification of the Impact of Urbanization on
Species Diversity and Food Webs in Valley Creek Watershed"
Presented at the 2002 Annual Meeting of the American Water Resources
Association, Nov 3 - 7, 2002, Philadelphia, PA.
Steffy, L.Y. and S.S. Kilham. "Elevated Delta-N-15 in Stream
Biota in Areas with Septic Tank Systems in an Urban Watershed",
Ecological Applications,
14(3): 637-641, 2004.
Steffy, L. Y. and S.S. Kilham. Effects of urbanization
and land use on fish communities in Valley Creek watershed, Chester County,
Pennsylvania, Urban Ecosystems, Volume 9, Issue 2, Jun 2006, Pages 119 – 133.
Steffy, L.Y. , A.L. McGinty, , C. Welty and S.S. Kilham. "Connecting
Groundwater Influxes with Fish Species Diversity in an Urbanized
Watershed", Journal of the American Water Resources Association,
40(5), 1269-1274, 2004.
Steffy, L and S.S. Kilham. "Quantifying
impacts of urbanization and land use on stream fish communities."
Presented to the Schuylkill River Congress, March 6, 2004.
Steffy, L.Y. , A.L. McGinty, , C. Welty and S.S. Kilham. "Correlation
of Spatially-Variable Fish Species Diversity with Groundwater
Inflows in an Urbanized Stream System", Presented at the
MidAtlantic Ecology Conference of the Ecological Society of America
on Sustainable Landscapes, March 27-28, 2004, Franklin and Marshall
College, Lancaster, PA, 2004.
Welty, C., S.S. Kilham, A.I. Packman, and R.J. Brulle. An Acre and Hour: Documenting the Effects of Urban Sprawl on a Model Watershed Near Philadelphia, PA. In 2001 Water and Watersheds Progress Review, April 17-19, 2001, San Francisco, CA, US EPA, ORD, NCER, EPA/600-R-01/014.
Welty, C. S. S. Kilham, A. I. Packman, and R. J. Brulle, "Documenting of the Effects of Urban Sprawl on a Model Watershed Near Philadelphia, Pennsylvania -- Project Overview", Presented at the 2002 Annual Meeting of the American Water Resources Association, Nov 3 - 7, 2002, Philadelphia, PA.
Welty, C. "Documentation
of the Effects of Urbanization on Valley Creek Watershed",
Presented at the Annual Crum Creek Conference, Swarthmore College,
March 22, 2003.
Welty, Claire. "An Acre An Hour: Documenting the Effects
of Urban Sprawl on a Model Watershed near Philadelphia, PA,"
presented to Drexel University, Environmental Seminar Series,
October 18, 2002; University of Maryland, Baltimore County, May
14, 2003.
Welty, C. "Quantification of the Effects of Urbanization
on Valley Creek Watershed, Chester County, PA ", Presented
to University of Pennsylvania, September 17, 2003.
Welty, C. "Documenting the Effects of Urban Sprawl on a Model
Watershed near Philadelphia, PA", Presented to Appalachian
Lab, Frostburg, MD, January 29, 2004.
Welty, C. "Quantitative Assessment of the Impacts of Urbanization
on Hydrologic and Biotic Processes at the Watershed Scale",
Presented to Johns Hopkins University, February 24, 2004.
Welty, C., S.S. Kilham, I.A. Packman, R.J. Brulle, and A. J. Miller,
"Watershed-Scale Research: Overview of the Valley Creek Project",
Presented to the Schuylkill River Congress, March 6, 2004.
Welty, C. "Watershed Research in the Urban Environment",
Presented to Chesapeake Biological Laboratory, March 11, 2004.
Welty, C. "A Report on the State of Valley Creek". Presented
to the Open Lands Conservancy of Chester County, March 24, 2004.
Welty, C. "Impacts of Urbanization on Ecosystem Processes
and Watershed Dynamics", Center of Marine Biotechnology,
University of Maryland Biotechnology Institute, April14, 2004.
Welty, C. "Observations of the Effects of Urbanization on Hydrologic and Geomorphic Processes in Valley Creek Watershed" Presented to the Valley Creek Partnership, Summit I, April 20, 2004 .