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 David M. Gordon, Ph.D.

David M. Gordon, Ph.D.

Emeritus Professor of Entomology
Discipline/Specialization: Ecology of bees (native bee faunas), medical entomology (ecology of phlebotomine sand flies in SE Kansas)
Department of Biology
Office: 223 Heckert-Wells Hall
Phone: 620-235-4735

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About Dr. David Gordon

Dr. Gordon began teaching at Pitt State in the fall of 2001. He currently teaches a variety of undergraduate and graduate courses. He taught undergraduate majors and non-majors biology courses at Kentucky State University from 1996-2001. He also taught two years at D-Q University, a two year Native American Tribal College in California.  At College of the Redwoods in Eureka, California he taught Forest Protection and Ecology and he independently taught Pest Management Biology courses for professionals holding California Pest Control Adviser Licenses.  During his graduate studies he was a teaching assistant for a number of courses at the University of California at Davis, and at Humboldt State University.  continue reading Biographical Sketch >>

Curriculum Vitae


Ph.D., University of California at Davis, California, U.S.A.

M.A., Humboldt State University in Arcata, California, U.S.A.

B.A., Humboldt State University in Arcata, California, U.S.A.

Courses Taught

BIOL 112 General Biology Laboratory
BIOL 111 General Biology     
BIOL 561 General Entomology
BIOL 330 Principles of Ecology   
BIOL 602-18 Medical Entomology   
BIOL 402-20 Forensic Entomology    
BIOL 639 Field Ecology    
BIOL 803 Biometry     


  • Pre-medical
  • Pre-veterinary
  • Pre-optometry
  • Pre-forestry
  • Entomology

Fall Schedule | Spring Schedule | Summer Schedule

My Teaching Philosophy | Links to Course-Related Web Sites


I am interested in native bees and the links between pollinator and plant communities. I believe that bee and plant communities influence each other s structure. The abundance, flower preferences, flight seasons, and size variation exhibited by members of the bee community influence the reproductive success of those plant species which are dependent on those bees for pollination.  If the loss of a pollinator species reduces the reproductive success of some plant species, this will result in a shift in the structure of the plant community as those plants become less abundant.  For this reason, it is important to identify the bee fauna and the roles that bees play in pollination of native plants.

Although there is ample evidence that yield is proportional to pollinator density in many agricultural crops, there is little information regarding the yield of wildlife forage.  Production of many berry and seed  crops  eaten by wildlife is probably dependent on pollination by wild bees.  If a pollinator species is lost, this may reduce the reproductive success of some plant species, reducing food for wildlife and leading to a shift in the structure of the plant community as those plants become less abundant.

I have been investigating the diversity of native bees and developing plant visitation records. I am also examining how native bees can be used as alternative pollinators in orchards and gardens, and how such use can be linked to maintaining a diverse native bee community.  My program includes collecting and identifying bee and plant species, monitoring their phenology, distribution, and abundance.

I make presentations that educate the public and conservation biologists that we need to understand the roles that native pollinators play in maintaining biodiversity and providing food for wildlife.

Enhancing Alternate Pollinators | Mystery Bites caused by Pyemotes mites

Publications and Presentations

Posters (link to poster PDF downloads)

  • David M. Gordon, Robbin W. Thorp, & James R. Carey. 2006. Overwintering Mortality of Brood of Megachile wheeleri Mitchell (Hymenoptera: Megachilidae) a Ground-Nesting Leafcutter Bee in Coastal Dunes of Northern California. Poster. 54th Annual Meeting of the Entomological Society of America, Dec. 2005. Indianapolis, IN. pdf poster.
  • Gordon, D. M. & M. S. Arduser. 2005. A Preliminary Survey of Bees (Apoidea) from Prairie State Park, Missouri. Poster. 53rd Annual Meeting of the Entomological Society of America, Dec. 2005. Ft. Lauderdale, FL. Open pdf version of poster.

Publications (link to publication PDF abstract downloads)

  • Weng, Ju-Lin, Samantha L. Young, David M. Gordon, David Claborn, Christine Petersen, and Marcelo Ramalho-Ortigao. First Report of Phlebotomine Sand Flies (Diptera: Psychodidae) in Kansas and Missouri, and a PCR Method to Distinguish Lutzomyia shannoni From Lutzomyia vexator. J. Med. Entomol. 49(6): 1460-1465 (2012); DOI: http://dx.doi.org/10.1603/ME12105. pdf abstract [58K]
  • Fox, Charles W., David M. Gordon & Pasano Bojang. 2006. Genetic and Environmental Sources of Variation in Survival on Nonnative Host Species in the Generalist Seed Beetle, Stator limbatus. Southwest Naturalist 51(4): 490-501. pdf abstract [1.25MB]
  • Broce, Alberto B, Ludek Zurek, James A. Kalisch, Robert Brown, David L. Keith, David Gordon, Janis Goedeke, Cal Welbourn, Jon Moser, Ronald Ochoa, Eduardo Azziz-Bungartner, Fyuen Yip, and Jacob Weber. 2006. Pyemotes herfsi (Acari: Pyemotidae), a Mite New to North America as the Cause of Bite Outbreaks. J. Med. Entomol. 43(3): 610-613. pdf abstract [56K]
  • Gordon, D. M.  2003. Life History & Nest Biology Of The Mason Bee Osmia (Acanthosmioides) integra Cresson In Coastal Dunes (Hymenoptera: Megachilidae).  Pan-Pacific Entomologist 79(1):45-53.   pdf  paper [170K].  -- pdf of  figures [black & white] [3 MB] --- pdf of  figures [color] [4.2 MB].
  • Gordon, D. M.  2000.  Plants as indicators of leafcutter bee (Hymenoptera: Megachilidae) nest habitat in coastal dunes. Pan-Pacific Entomologist  76(4): 219-233.    pdf  paper [500K].
  • Gordon, D. M.  2000.  Enhancing alternative pollinators for orchards and gardens.  Coop. Extension pamphlet.  Kentucky State University.  5 pp. pdf pamphlet [88K].
  • Go to Illustrated Pamphlet online.
  • Gordon, D. M.  2000.  Enhancing alternative pollinators.  American Fruit Grower.  February.  Pp. 17-18, 20. pdf  paper [8 MB].
  • Content Expert:  Microsoft Encarta 97.  Contributed 13 articles on Hymenoptera for Encarta 97, Microsoft's CD encyclopedia.  February, 1996.  Carpenter Bee, Sweat Bee, Leafcutting Bee, Digger Bee, Mason Bee, Orchid Bee, Cuckoo Wasp, Sphecid Wasp, Gall Wasp, Spider Wasp, Paper Wasp, Potter Wasp, Velvet Ant.
  • Gordon, D. M. J. F. Barthell, R. E. Page, Jr., M. K. Fondrk, R. W. Thorp.  1995.  Colony performance of selected honey bee (Hymenoptera: Apidae) strains used for alfalfa pollination.  J. Economic Entomology, 88(1):51-57.   pdf abstract [46K].
  • Gordon, D. M. & L. R. Teuber.  1993.  Improving procedures used to select for Lygus bug resistance in alfalfa.  pp. 7-11 in:  Proc. 1993 Alfalfa seed production symposium.  Univ. Calif. Cooperative Extension & Calif. Alfalfa Seed Production Research Board. pdf  paper [172K].
  • Gordon, D.M., 1992.  Interactions between the bee and plant communities in coastal dunes and the implications for conservation biology.  pp. 112-118 in:  Harris, R. R., & Erman, D. C. (Tech. Coord.), & Kerner, H. M. (ed.).  1992.  Proc. of the Symposium on biodiversity of northwestern California.  Oct. 28-30, 1991,  Santa Rosa, CA. Wildland Resources Center Report 29, University of California, Berkeley, CA 94720.  pdf with color ilustrations [7.64 MB]. ----- pdf of Black & White Illustrations only [3.2MB].
  • Thorp, R.W. & Gordon, D. M.  1992.  Biodiversity and pollination biology of bees in coastal nature preserves.  pp. 105-111 in:  Harris, R. R., & Erman, D. C. (Tech. Coord.), & Kerner, H. M. (ed.).  1992.  Proc. of the Symposium on biodiversity of northwestern California.   Oct. 28-30, 1991, Santa Rosa, CA. Wildland Resources Center Report 29, University of California, Berkeley, CA 94720.   pdf paper [311K].
  • Gordon, D. M.  1992.  Habitat-Oriented Bee Studies Will Improve Efforts to Conserve Native Bee Populations: An Example from Coastal Dunes.  (Abstract).  in: Proceedings of the International Workshop on Non-Apis Bees and Their Role as Crop Pollinators. August 10-13, 1992.  Logan, Utah.  pdf abstract [54K].
  • Thorp, R. W., G. W. Frankie, J. Barthell, D. Gordon, L. Newstrom, T. Griswold, J. Schmidt, S. Thoenes.  1992.  Long-term studies to gauge effects of invading bees.  California Agriculture 46(1):20-23. pdf paper [6.84MB].
  • Peng, Y.-S. C., Gordon, D.M., Nasr, M.E., Teuber, L.R.  1987.  Pollen variation in alfalfa (Medicago sativa  L.) cultivars.  Pollen et Spores  29(1):45-58. pdf   abstract [160K].
  • Gordon, D.M., Locke, S.J., Nasr, M.E., Tyler, T.T., & Webster, T.C.  1986.  A Survey of current beekeeping practices in California:  implications for Africanized bee control.  Amer. Bee J.  126(12):799-803.