Jennifer L Rapp

Conducts applied research projects related to ecological flows, aquatic habitat quality, or endangered species critical habitat needs. My goal is to further USGS water-resources research incorporating my interests in ecology, hydrology, GIS, geomorphology, and ecosystem-management tool development. 

Biography

Ongoing Research Projects: 

  • Flow-Ecology Baseline Biological Richness Evaluation in Virginia: The current investigation will evaluate regional organizing variables for flow-ecology evaluations, evaluate extensive biological-richness data (fish and macro-invertebrates) in relation to drainage area and selected significant metrics from the phase-1 reseach, update and extend the previous modeling dataset to further test significant flow-ecology relations in Virginia.  
  • From the Mountains to the Sea: An innovative Water-Quality Network and Unique Collaborative Partnership: This successful partnership brings together Randolph-Macon College (RMC), Washington and Lee University (W&L), Virginia Commonwealth University (VCU), in partnership with the US Geological Survey (USGS) to foster growth in STEM through Summer student internship experience, awareness of USGS science in the class room, and increased the water-quality and streamflow monitoring network in the James River and tidal freshwater-estuary through new and enhanced technologies.
  • Endocrine Disrupting Contaminants (EDC) in the Shenandoah River and Fish Health - Sources and Biological Effects: Collaboration with the USGS National Research Program to evaluate point and non-point potential sources of EDCs and transport pathways in the Shenandoah River Watershed.  Partnership with Larry Barber, U.S. Geological Survey, Boulder, Colorado and Alan Vajda and David Bertolatus, University of Colorado Denver, Denver, Colorado.

Previous Studies: 

  • Water-Quality Effects on Rare and Endangered Freshwater Mussels in the Clinch River:  Multi-disciplinary USGS project incorporates water-quality, hydrology, geomorphology, biology, and land use change assessments toward an understanding of stressors causing decline in freshwater mussel populations. Outcomes should support forecasting ecosystem change in response to changes in land use, energy extraction practices, and climate.

Publications

Krstolic, Jennifer L., 2015. Data collection and simulation of ecological habitat and recreational habitat in the Shenandoah River, Virginia. U.S. Geological Survey Scientific Investigations Report 2015-5005, 30 p. [Link]

Jastram, J.D., Krstolic, J.L., Moyer, D.L., and Hyer, K.E., 2015, Fluvial geomorphology and suspended-sediment transport during construction of the Roanoke River Flood Reduction Project in Roanoke, Virginia, 2005–2012: U.S. Geological Survey Scientific Investigations Report 2015–5111, 53 p., http://dx.doi.org/10.3133/sir20155111. [Link]

Zipper, Carl E.; Beaty, Braven; Johnson, Gregory C.; Jones, Jess W.; Krstolic, Jennifer Lynn; Ostby, Brett J. K.; Wolfe, William J.; Donovan, Patricia, 2014. Freshwater mussel population status and habitat quality in the Clinch River, Virginia and Tennessee, USA: a featured collection. American Water Resources Association , 13 p.

Ostby, Brett J. K.; Krstolic, Jennifer L.; Johnson, Gregory C., 2014. Reach-scale comparison of habitat and mollusk assemblages for select sites in the Clinch River with regional context. Wiley , 19 p.

Johnson, G.C., Krstolic, J.L., and Ostby, B.J.K., 2014, Influences of Water and Sediment Quality and Hydrologic Processes on Mussels in the Clinch River. Journal of the American Water Resources Association, Vol. 50, issue 4, 878-897.

Krstolic, Jennifer L; Johnson, Gregory C; Ostby, Brett J. K., 2013. Water quality, sediment characteristics, aquatic habitat, geomorphology, and mussel population status of the Clinch River, Virginia and Tennessee, 2009-2011. U.S. Geological Survey Data Series 802, 5 p.; 2 Appendices; 1 Plate: 17 inches x 11 inches

Krstolic, Jennifer L.; Ramey, R. Clay, 2012. South Fork Shenandoah River habitat-flow modeling to determine ecological and recreational characteristics during low-flow periods. U.S. Geological Survey Scientific Investigations Report 2012-5081, 63 p. [Link]

Austin, Samuel H.; Krstolic, Jennifer L.; Wiegand, Ute, 2011. Low-flow characteristics of Virginia streams. U.S. Geological Survey Scientific Investigations Report 2011-5143, 122 p.; Tables 1-12 [Link]

Austin, Samuel H.; Krstolic, Jennifer L.; Wiegand, Ute, 2011. Peak-flow characteristics of Virginia streams. U.S. Geological Survey Scientific Investigations Report 2011-5144, 106 p.; Tables 1-6; Appendices [Link]

Krstolic, Jennifer L.; Chaplin, Jeffrey J., 2007. Bankfull Regional Curves for Streams in the Non-Urban, Non-Tidal Coastal Plain Physiographic Province, Virginia and Maryland. Geological Survey (U.S.) Scientific Investigations Report 2007-5162, 49 p. [Link]

Krstolic, Jennifer L.; Hayes, Donald C.; Ruhl, Peter M., 2006. Physical habitat classification and instream flow modeling to determine habitat availability during low-flow periods, North Fork Shenandoah River, Virginia. Scientific Investigations Report 2006-5025, 55 p. [Link]

Martucci, Sarah K.; Krstolic, Jennifer L.; Raffensperger, Jeff P.; Hopkins, Katherine J., 2005. Development of Land Segmentation, Stream-Reach Network, and Watersheds in Support of Hydrological Simulation Program-Fortran (HSPF) Modeling, Chesapeake Bay Watershed, and Adjacent Parts of Maryland, Delaware, and Virginia. U.S. Geological Survey Scientific Investigations Report 2005-5073, Available online and on CD-ROM [Link]

Krstolic, Jennifer L.; Martucci, Sarah K.; Hopkins, Katherine J; Raffensperger, Jeff P., 2005 Land Segmentation for the Chesapeake Bay Regional Watershed Model, vector digital data. [Link]

Krstolic, Jennifer L.; Martucci, Sarah K.; Hopkins, Katherine J; Raffensperger, Jeff P., 2005 Watersheds for the Chesapeake Bay Regional Watershed Model, vector digital data. [Link]

Krstolic, Jennifer L.; Hayes, Donald C., 2004. Water-quality synoptic sampling, July 1999: North Fork Shenandoah River, Virginia. Scientific Investigations Report 2004-5153, 88 p. [Link]