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Faculty Directory » Christopher K. Cratsley


Office Hours:

Semester: Spring 2019
Monday 12:30 - 1:30 PM
Tuesday and Thursdays 2:30 PM - 3:30 PM

Office Information:

Room Number: SCI-225
Phone: 978-665-3617

Courses Taught:

Life Science I
Biology Teaching Methods
Life Science II
General Biology II
Topics in Animal Behavior
Topics in Biological Inquiry Through Computer Technology
Biology Practicum in a Secondary School I and II
Methods in Teaching Biology and Earth Science


Ph.D., Biology, Tufts University, 2000
B.A., Biology, Undergraduate Teacher Education Program, Brown University, 1991.

Research Interests:

Research developing and applying embedded computer systems to determine the ecology of firefly flash behavior.
Research on mating behavior in Pieris rapae and Computer-based tools for Biological inquiry.

Current Projects:

IT Across the Curriculum CITI Grant for "Biological Inquiry Through Computer Technology" #201-1024FSC Awarded March 2001 for development of course materials integrating Information Technology and Biological Research.
Sigma Xi Grants in Aid of Research Awarded 1999 for research on sexual selection in fireflies.

Representative Publications:

Cratsley, C.K. and Lewis S.M. 2005. Seasonal variation in mate choice of Photinus ignitus fireflies. Ethology. 111:89-100.
Austin, K.B., Dunlap J., Glover M., McKinnon J., Mohney D., Taft M., Vysocky M., and Cratsley, C.K 2005. The virtual firefly: an interdisciplinary undergraduate research project. Journal of Computing Sciences in Colleges. 20 (5): 188-199.
Lewis, S.M., Cratsley, C.K. and Demary, K. 2004. Mate recognition and choice in Photinus fireflies. Annales Zoologici Fenici. 41:809-821.
Cratsley, C.K. 2004. Flash signals, nuptial gifts and female preference in Photinus fireflies.
Lewis, S.M., Cratsley, C.K. and Rooney, J.A. 2004. Nuptial gifts and sexual selection in Photinus fireflies. Integrative and Comparative Biology. 44:234-237.
Cratsley, C.K. and Lewis, S.M. 2003. Female preference for male courtship flashes in Photinus ignitus fireflies. Behavioral Ecology. 14(1): 135-140
Cratsley, C.K., Rooney, J.A. and Lewis, S.M. 2003. Limits to nuptial gift production by male fireflies. Journal of Insect Behavior. 16(3): 361-370
Cratsley, C.K. 2000. Sexual selection on male courtship signals and nuptial gifts in Photinus fireflies. (Ph.D. Thesis) Tufts University.
Cratsley, C.K. and Lewis, S.M. 1997. Variation in the nuptial gifts of Photinus ignitus males and potential for female choice. American Zoologist. 37(5): 32A.
Cratsley, C.K. 1991. How problems can help. The American Biology Teacher. 53(7): 390-392.

Professional Affiliations:

Animal Behavior Society
International Society for Behavioral Ecology
National Association of Biology teachers
Sigma Xi Scientific Research Society