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Kathryn Johnson, Associate Professor and Chair of Biology Katie Johnson
B.S., Beloit College, Ph.D., Vanderbilt University 

Office: Sanger Center for the Sciences 336
Phone: 608-363-2429

Kathryn Johnson is a physiologist who is interested in how obesity affects hormones that regulate glucose levels in animals and humans. Her current projects evaluate the effects of obesity and insulin resistance in horses.  Her academic work also investigates the effects of race on the student experience in the sciences.  As student collaborators are vital to her work, she is always interested in talking to potential student researchers.  She is an avid sports fan, and may often be found in the gym or on the field participating or volunteering, and, of course, supporting Buccaneer athletics.  Off campus, you may find her riding and showing her horse.  She teaches Human Biology, Anatomy, and Human Physiology.

Rachel A. Bergstrom, Assistant Professor of Biology                                                          06 - Bergstrom Head Shot (1).jpg
B.S., North Park University, Ph.D., Mayo Graduate School

Office: Sanger Center for the Sciences 334
Phone: 608-363-2367

Rachel Bergstrom is a neuroscientist with interests in cellular and molecular aspects of neurodegeneration. She uses tissue culture models (primary mouse neurons and cell lines), cell imaging, and cell and molecular biology techniques to address long-range cell-surface receptor signaling and to analyze how the loss of normal signaling regulation contributes to axon degeneration in particular and neurodegeneration in general. Outside of science, creative arts (especially knitting and sewing) and running keep her entertained. Rachel teaches Emerging Infectious Diseases, Cell Biology, and Neurobiology. 

Amy Briggs, Assistant Professor of BiologyAmy
B.A., Lawrence University, Ph.D., University of Wisconsin-Madison

Office: Sanger Center for the Sciences 333
Phone: 608-363-2349

Amy Briggs is a molecular biologist specializing in plant pathology. She uses biochemistry, microscopy, bioinformatics, molecular biology, and genetics techniques to study the molecular mechanisms by which the plant Arabidopsis thaliana responds to bacterial and fungal infections. Outside of the classroom and laboratory, Amy is an avid science fiction reader, gardener, and seamstress. She teaches Human Biology, Microbiology, Emerging Diseases, Cellular and Developmental Biology, and Genetics.

Tawnya Cary, Visiting Assistant Professor of BiologyTawnya Cary
B.S., Iowa State University, M.S., University of South Carolina, Ph.D., University of Wisconsin-Madison

Office: Sanger Center for the Sciences 330
Phone: 608-363-2267

Tawnya Cary is a zoologist with specific interests in aquatic ecotoxicology, the study of how environmental contaminants affect aquatic species. She performs whole animal studies with tadpoles and frogs to investigate how contaminant exposure influences growth, development and immune function at different life stages. In addition, her academic interests include investigating how students learn biology and develop a sense of identify and belonging to the scientific community. Outside of the classroom and laboratory, Tawnya enjoys canoeing/hiking/camping, and tending her garden to support her cooking habit. Tawnya teaches Zoology and Comparative Vertebrate Anatomy.

Ted Gries, Associate Professor of Biochemistry and ChemistryTed Gries
B.S., Indiana Univerity, Ph.D University of Wisconsin-Madison

Office: Sanger Center for the Sciences 416
Phone: 608-363-2284

Ted Gries is biochemist interested in understanding how solution conditions affect the way proteins function. Undergraduate researchers in his lab are working to understand how solutes such as urea and glycine betaine, which are know to influence protein shape, may be used to probe the mechanisms of the binding proteins myoglobin and hemoglobin and the enzymes alkaline phosphatase and 6-phosphoglycerate dehydrogenase. Ted enjoys hiking and riding his motorcycle, particularly in the driftless region of southwestern Wisconsin. He teaches General Chemistry, Nutrition and Metabolism: Biochemical Mechanism, DNA and Protein Biochemistry, and Thermodynamics and Kinetics.

Yaffa L. Grossman, Professor of Biology, Associate Dean and Director of the Liberal Arts in Practice Center
B.A., Amherst College, M.S., University of Massachusetts, Amherst, Ph.D., University of California, DavisYaffa Grossman

Office: Sanger Center for the Sciences 332 and Liberal Arts in Practice Center
Phone: 608-363-2219

Yaffa Grossman is a physiological plant ecologist with research interests in plant carbon allocation, growth analysis, modeling, sustainability, and restoration ecology in the urban context. She has strong interests in interdisciplinary education, has chaired the Environmental Studies program at Beloit, and was a P.I. of the Pathways to Sustainability Leadership program and Director of Beloit College Sustainability Fellows Program.  She teaches Botany, Biometrics, Environmental Biology, and Ecology, and topics courses in physiological plant ecology, conservation biology, environmental sustainability, and environment and society. She serves as Associate Dean and Director of the Liberal Arts in Practice Center.

Michael Johnson, Visiting Assistant Professor of BiologyMichael Johnson
B.A., Kalamazoo College, M.S., University of Wyoming, Ph.D., University of Wisconsin-Madison

Office: Sanger Center for the Sciences 338
Phone: 608-363-2784

Michael Johnson is a paleontologist interested in understanding how changing environmental conditions influence ecology and evolution.  He uses the stable carbon and oxygen isotope ratios of biogenic minerals (teeth, bones, and shells) to reconstruct the diets and habitats of extinct animals along with the local paleoclimate.  Other than science, Michael enjoys downhill skiing, reading science fiction and fantasy, playing tabletop and video games, and occasionally picking up a sword for a bit of historical fencing.

Ken Yasukawa, Professor of BiologyKen Observing.jpg
B.S., State University of New York-Stony Brook, M.A., Ph.D., Indiana University

Office: Sanger Center for the Sciences 335
Phone: 608-363-2314

Ken Yasukawa is a behavioral ecologist, meaning that he studies the way that an animal's behavior affects its interactions with the environment.  His research focuses on the reproductive behavior and ecology of birds, especially the Red-winged Blackbird (Agelaius phoeniceus). He is also a field biologist because he studies birds in the wild, primarily at the Newark Road Prairie, which is about 8 miles from the Beloit College campus. Many of his research projects have been conducted with students and presented at national professional meetings or published in primary biological journals. He is also interested in improving science education, from elementary school through college. He teaches Zoology, Biometrics, Population Biology, and Animal Behavior, and topics courses in animal cognition and game theory.


Marion Field Fass, Emerita Professor of BiologyMarion Fass
B.A., University of Pennsylvania; Sc.D., Johns Hopkins University


Marion Field Fass is interested in the intersection of individual biological, public health, sustainability, and environmental factors that lead to the emergence of new diseases.  She has engaged with the interdisciplinary perspectives necessary to understand these relationships, and the opportunities to build curricula for undergraduate students that combine scientific investigations with social and cultural understanding and that motivate students to work for social justice.  Her research has focused on the measurement of community health needs and on methods of assessment of student learning.  Her courses include Human Biology, Microbiology, Emerging Diseases, Global Health, and a first-year course on Slow Food (Beloit College Magazine, Summer 2008).  She received the 2012 William E. Bennett Award for Extraordinary Contributions to Citizen Science from the National Center for Science and Civic Engagement.  

Carol Mankiewicz Emerita Professor of BiologyCarol Mankiewicz
B.S., M.S., University of California-Los Angeles; Ph.D., University of Wisconsin-Madison


Carol Mankiewicz is interested in the interactions of organisms with their physical environment. The organisms that fascinate her the most are those that have the potential to be fossilized; these organisms either have hard parts such as shells or they have some behavior such as making burrows in the sediment that can be preserved. She focuses on organisms that live in aquatic, particularly shallow-marine, systems, and studies both modern systems and their ancient counterparts preserved in the rock record. She teaches Marine Biology, Environmental Biology, and Sedimentology, and topics courses on water, estuaries, paleoclimate, soils, and the natural history of South America.

Richard Newsome, Emeritus Professor of BiologyDick Newsome_2
B.S. Western Michigan University, Ph.D., University of Saskatchewan


Dick Newsome is a plant ecologist who is active in environmental and ecological affairs. He founded the Rock County Conservationists in 1987, co-founded the Friends of the Welty Environmental Center in 1998, and has served these groups and many others at the local, regional, and state level. He received the George and Barbara Fell Award from the Natural Land Institute in 2007 for his outstanding dedication to land conservation.  

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