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usgs_staff_profile:
meta: status_code: 200 timestamp: '2023-09-30T17:27:06.956373' url: https://www.usgs.gov/staff-profiles/johanna-kraus profile: abstracts: [] affiliations: [] education: - Ph.D., Biology, University of Virginia, 2006 - B.A., Biology, Brown University, honors, magna cum laude, 1998 email: jkraus@usgs.gov expertise_terms: - aquatic ecosystems - benthic ecosystems - ecological processes - ecosystem diversity - ecosystem functions - ecosystems - freshwater ecosystems - fishery resources - water resources - surface water quality - animals - invertebrates - species diversity - ecotoxiology - contaminants - PCBs - pesticides - metals honors: [] intro_statements: - Dr. Johanna M. Kraus is a Research Ecologist at the Columbia Environmental Research Center. name: Johanna Kraus, PhD name_qualifier: null orcid: 0000-0002-9513-4129 organization_link: https://www.usgs.gov/centers/columbia-environmental-research-center organization_name: Columbia Environmental Research Center personal_statement: She studies effects of anthropogenic stressors on food webs, biodiversity and environmental health in aquatic and terrestrial ecosystems. She began her career with the USGS in 2011 researching how trace metals from acid rock drainage impact adult aquatic insect emergence and contaminant flux to terrestrial insectivores near mountain streams. Since then, her research has uncovered when and where contaminants may impact aquatic and terrestrial food webs using large empirical field studies, laboratory manipulations and conceptual modelling. Dr. Kraus received her B.A. in Biology from Brown University and Ph.D. in Biology from the University of Virginia. professional_experience: - Research Ecologist, U.S. Geological Survey, 2016 - present - Mendenhall Research Fellow, U.S. Geological Survey 2011- 2015 - Post-doctoral Researcher, Biology, Virginia Commonwealth University, 2007-2010 - Visiting Assistant Professor, Biology, Washington and Lee University, 2006-2007 - National Science Foundation EAPSI Fellow, Japan, 2006 title: Research Ecologist