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                                              Erin R. Hotchkiss                            

Previous Research

 

Colorado River Food Web

With Dr. Emma Rosi-Marshall, Dr. Ted Kennedy, Dr. Wyatt Cross and Dr. Robert Hall.  Loyola University, USGS-GCMRC and University of Wyoming, 2007.  I assisted with the collection and processing of algae, macroinvertebrates and fish along 225 miles of the Colorado River in Grand Canyon National Park.  I spent a majority of my time on the river extracting diatoms for nutrient, isotope, and community assemblage analyses.  I also collected oxygen isotope samples for calculations of photosynthesis and community respiration over a 24-hour period.  [Photos]

 

Stream Nitrogen Uptake and Cycling

With Dr. Robert Hall and Dr. Jennifer Tank. University of Wyoming and University of Notre Dame, 2005. Graduate research assistant for the last season of LINX2 data collection on nitrogen transport and uptake in streams using 15N tracer additions, Grand Teton National Park.  [Photos]

 

Sea Turtle Nesting Census

With Zandy Hillis-Starr, Kimberly Woody and Philippe Mayor. National Park Service, St. Croix, 2004. Nesting activities and hatch success of hawksbill, leatherback and green sea turtles on Buck Island Reef National Monument and the beaches of the Buccaneer Hotel.  I also assisted with exotic mammal removal, in-water juvenile hawksbill mark and recapture, and the creation of a plant ID database for Buck Island.  [Photos

 

Restored Wetland Productivity

With Darin Grulkowski, Randy Smith and Dr. Mike Eichholz. Southern Illinois UniversityCarbondale, 2004. Density, diversity and productivity of aquatic plants and macroinvertebrates in a restored wetland, and their effect on waterfowl feeding behavior in Two Rivers Wildlife Refuge.  I also helped collect data on catfish and carp movement and reproduction.  [Photos]

 

Bird Behavior and Disease

With Dr. Sonia Altizer and Andy Davis. Emory University, 2003-2004. Behavioral studies of house finches infected with Microplasma gallisepticum in Atlanta, GA.  [Photos]

 

Nutrient Limitation in a Tropical Stream

With Marcelo Ardon, Dr. Becky Bixby, Mainor Hidalgo and Dr. Catherine Pringle. Research Experience for Undergraduates (REU), Organization for Tropical Studies (OTS), and University of Georgia, 2003. The role of limiting nutrients on chironomid larvae growth rates in the laboratory and their effects on in-stream microbial respiration. La Selva Biological Station, Costa Rica.  [Photos]

 

Energy Conservation Liaison

With Dr. Peggy Barlett and Dr. John Wegner. Emory University, 2002-2003. I worked with faculty and staff at Emory to reduce the College’s energy use and with Facilities Management to compile energy use data.  [Energy Brochure]

 

Land Use and Stream Nitrification

With Dr. Melody Bernot, Dr. Jennifer Tank, Lareina Wall and Clay Arango. University of Notre Dame, 2002. Nitrogen dynamics in Michigan streams and a reservoir in Illinois.  My independent project compared potential sediment nitrification and denitrification in streams surrounded by different land-use types (forested, urban, and agricultural).  [Photos]

 

Plant Biofuel Genetics

With Lee Gunter and Dr. Gerald Tuskan. Environmental Science Division, Oak Ridge National Laboratory, 2001.  Possible genetic diversity of switchgrass plants due to spatial variation.  [Photos]