• 2010-present. Associated REsearch Scientist, University of Texas Insect Collection.

  • 2009-2011. Adjunct Professor, Biology, St. Edward’s University. Teaching population ecology and introductory biology (lecture and labs).

  • 2007-2010. Self employed, dba Pest Management Research. Contract research, training programs, consulting in area of structural pest control.

  • 1994-2007. Senior Research Biologist, Dow AgroSciences, Austin, Texas. Field Research & development for Urban Pest Management in Texas, Oklahoma, Arkansas and New Mexico. Coordination of research projects with university, government, and other collaborators, field research, product development, customer training, and technical support for sales staff. Worked with Sentricon®, Vikane®, and ProFume®

  • 1990-1994. Assistant Entomologist / Asst. Specialist, Department of Entomology, University of California, Riverside. Research and extension appointment in field of urban and structural entomology. Research on ecology, control, and identification of termites, ants, and cockroaches. Extension programs related to general public and pest control industry.

  • 1989- 1990. Biological Scientist III, Household Insects Unit, Department of Entomology and Nematology, University of Florida, Gainesville, Florida. Laboratory and field research and extension in household and structural insects, particularly control, ecology, and identification of cockroaches. Position involved liaison with pesticide industry, pest control operators, and U.S.D.A. scientists.

  • 1987-1989. Biological Scientist III, Forest Insects Lab, Department of Entomology and Nematology, University of Florida, Gainesville, Florida. Systematics of forest pests in Florida and the Southeastern U.S., research on ecology of pine reproduction weevils (Hylobius pales, Pachylobius picivorus), attractants and chemical ecology of pine bark beetles.

  • 1985-1987. Associate Professor, research appointment (Investigador Asociado), Chamela Biological Station, Biological Institute, National Autonomous University of Mexico (Universidad Nacional Autónoma de México). Research on systematics, biology, and ecology of bark and ambrosia beetles (Scolytidae and Platypodidae), host-plant relationships of seed-eating beetles (Bruchidae); responsible for starting and curating insect collection of station and surrounding areas. Supervised research of baccalaureate thesis students and work of 3 assistants.

  • 1982. Guest Professor, graduate-level course and seminar in Systematic Zoology, Facultad de Ciéncias, National Autonomous University of Mexico, Mexico City.

  • 1979-1984. Associate professor, teaching-research appointment (Profesor-investigador Adjunto), Centro de Entomología y Acarología, Colegio de Postgraduados, Chapingo, Mexico. Curated research and teaching collections of the department, research on systematics and biogeography of Scolytidae and Platypodidae, use of computers in management of taxonomic and administrative data in collections. Teaching responsibility for graduate-level courses in insect identification and in systematics. Supervised 5 master's degree students, 7 baccalaureate thesis students; supervised work of 4 assistants.

  • 1973-1974. Research Associate, Chiriqui Land Co. (United Fruit Co.), Changuinola, Bocas del Toro, Panama. Research on biology and control of fruit scarring beetle, Colaspis ostmarki.

  • 1972. Research Technician, Naval Arctic Research Laboratory, Pt. Barrow Alaska. Collected soil inhabiting tundra nematodes as part of Tundra Biome project on soil invertebrates (Univ. Alaska / Univ. Florida).

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