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Donald R. Longman Associate Professor of Natural Science
{ Email Professor
Garvin }
Specialties:
Ecology of arthropod-borne diseases, vector ecology, effect
of parasites on avian demography.
I conduct field and laboratory
studies to describe and investigate arthropod-borne diseases
of birds. I'm specifically interested in the interaction between
birds and the arthropods that transmit (vector) their protozoan
and viral pathogens. My students and I study many aspects
of these relationships, including the role of songbirds and
mosquitoes as overwintering mechanisms of eastern equine encephalitis
virus and West Nile virus and the abundance and spatial distribution
of mosquito, mite, and tick vectors of disease.
I teach Invertebrate Biology;
Community Ecology; Introduction to Genetics, Evolution, and
Ecology (with Roger Laushman and Jane Bennett, Biology); Health
Careers Practicum and Field-based Writing: Ecology of the
Vermilion River Watershed (with Jan Cooper, Rhetoric and Composition).
I also sponsor student research projects in avian parasitology
and vector ecology.
Outside of my teaching and research,
I enjoy gardening, cooking, photography, ceramics, knitting,
and swimming.
Publications
Photo
Essay
Current Funding
B.A. (Biology), Hiram College,
1986
M.S. (Zoology), Louisiana State University, 1989
Ph.D. (Infectious Diseases), University of Florida, 1996
Postdoc, University of Notre Dame
Culiseta melanura, an epizootic vector of eastern equine
encephalitis virus, has very specific breeding habitats including
tamarack bogs and red maple swamps. The aquatic larvae of
C. melanura were found in great abundance in this cavity
in a southwest Michigan tamarack bog.
The distribution of Ixodes
ticks in the United States is clearly changing. Accompanying
this expansion is the increased risk of Lyme disease. During
their seasonal movements in the spring and fall, migratory
songbirds infested by immature ticks may serve as mechanisms
for establishment of new tick populations. Here, ticks feed
around the eye of the blue jay, an area difficult to preen.
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