Professor of Biology and Faculty Athletics Representative

Areas of emphasis:
Limnology, Freshwater Plankton Systematics, Ecology, Environmental Science, and Zoology

B.S. in Biology Western Michigan University
Ph.D. in Zoology (Limnology) University of Louisville

Office: Life Science Room 220
Phone: Office: (719) 549-2106, Home: (719) 647-0749, Cell: (719) 251-5474 (emergencies only)
FAX: (719) 549-2993 (Biology Office)


Currently Teaching:

  • BIO 121 - Biographical Sketch
  • BIO 121 - Syllabus
  • BIO 121L - Syllabus
  • Ichthyology
  • Herpetology
  • Ornithology
  • Mammalogy
  • Career Planning
  • Zoology
  • Environmental Conservation
  • Nutrition

Research Interests

Freshwater Plankton Systematics, Dynamics and Productivity, and Fly fishing


Linam, J.H., N.L. Osborn and J.A. Seilheimer. 1976. Biological Inventory of Pueblo County Waterways. Final report to EPA and Pueblo Area Council of Governments. Contact 76-C-14. 7p.

Seilheimer, J.A. and E. Lane. 1973. Our world and welcome to it: a handbook for environmental education. Pueblo Beautiful Association and Pueblo School District No. 60. Pueblo, Colorado. 146 p.

Herrmann, S.J., J.W. LaVelle and J.A. Seilheimer. 1970. Aquatic primary productivity and physical -chemical limnology on the Pawnee Site. U.S. IBP Grassland Biome Tech. Rep. No. 49.

LaVelle, J.W., J.A. Seilheimer, N.L. Osborn and S.J. Herrmann, 1969. A preliminary study of three lentic communities on the Pawnee National Grasslands. IN:IBP - the grasslands ecosystem. Range Science Series, Colorado State University. p. 308-315.

Seilheimer, J.A. 1963. Ecology of phytoplankton blooms. III. The dynamics of potamoplankton populations in the Ohio River at Louisville, Kentucky, 1960-1962. Final Report to U.S. Public Health Service, Res. Grant WP-00068-3. 220 p.

Seilheimer, J.A. 1963. Interrelationships between light and phytoplankton photosynthesis in the Ohio River. Final Report for AEC Res. Contract AT-(40-1)-2848. 51 p.

Seilheimer, J.A. 1963. A Comparison of algal growth in cultures exposed and unexposed to solar radiation. Trans. American Microscopic. Soc., 82:78-83.

Seilheimer, J.A. 1963. The dynamics of potamoplankton populations in the Ohio River at Louisville, Kentucky, 1960-1962. Doctoral Dissertation. University of Louisville. 290 p.

Other Activities

Active Environmentalist and Member of the Arkansas Valley Audubon Society, the Sangre de Cristo Group of the Colorado Sierra Club Chapter and the Nature and Raptor Center of Pueblo