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Millersville University Biology Department |
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Education:
B.S., University of Illinois
M.A. and Ph.D., University of Colorado
Courses Taught:
BIOL 211 -- Concepts of Zoology
BIOL 241 -- Ecology
BIOL 346 -- Ornithology
BIOL 443 -- Conservation Biology
BIOL 415 -- Mammalogy
Areas of Specialization:
Mammalian and avian ecology and behavior, conservation biology.
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Research Interest(s):
The ecology and conservation of small mammals and
birds is the major focus of my research. Students and
I have examined 1) predation rates on birds' nests in
different habitats; 2) the predator communities of forest
interior and edge; 3) the impact of roadways on the
daily movements of small mammals; and 4) nest box preferences
of bluebirds. I am also interested in the role of small
mammals in forest dynamics, the impact of parasitic
bot fly larvae on white-footed mice, the impact of house
cats on wildlife, and the use of deer-modified habitats
by small mammals. Dr. Joseph Merritt of Powdermill Biological
Station, students, and I study the winter adaptations
of small mammals, including the role of nonshivering
thermogenesis in shrews and mice and the energetic value
of communal nesting by flying squirrels.
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Selected Publication(s):
2002.
Maximizing survivorship in cold: thermogenic profiles
of non-hibernating mammals. Acta Theriologica
47, Supplement 1: 221-234. Merritt, J.F. and D. A.
Zegers.
2001. Seasonal thermogenesis of southern flying squirrels
(Glaucomys volans). Journal of Mammalogy 82:51-64.
Merritt,J.F., D.A. Zegers, and L. R. Rose.
2001. Behavioral responses of the eastern chipmunk,
Tamias striatus, to the vocalizations of four common
North American raptors. Journal of the Pennsylvania
Academy of Science 75:13-18. Tompkins, B.J. and
D. A. Zegers.
2000. Identification of nest predators at farm/forest
edge and forest interior sites. Journal of Field
Ornithology 71:207-216. (with S. May and L.J.
Goodrich).
2000. Nest box preferences and productivity by eastern
bluebirds and tree swallows. Bluebird, the journal
of the North American Bluebird Society 22:14-17. (with
S.G. Somershoe).
1998. Ecology and Evolutionary Biology of Tree Squirrels.
Virginia Museum of Natural History, Special Publication
# 6, 384 pp. (Co-edited with M.A. Steele and J.F.
Merritt).
1994. At the Crossroads: A Natural History of Southcentral
Pennsylvania (editor). Millersville University
(publisher).
1993. An expermental study of nest predation in adjacent
deciduous, coniferous and successional habitats. Condor
95: 297-304. (with L. C. Seitz).
1991. Seasonal thermogenesis and body mass dynamics
of Clethrionomys gapperi. Can. J. Zool. 69:2771-2777.
(with J.F.Merritt).
1991. Seed selection of Peromyscus leucopus. J.
Pa. Acad. Sci. 65:31-34.(with A. Antipas and L.
Bowman).
1988. Winter survival adaptations of Peromyscus in
an Appalachian montane forest. J. of Mammal.
69:516-523. (with J.F.Merritt).
1988. Effect of photoperiod and ambient temperature
on nonshivering thermogenesis of Peromyscus maniculatus.
Acta Theriologica 33:273-281. (with J.F. Merritt).
1986. Tree use by Peromyscus leucopus in a sugar maple
forest. J. Pa. Acad. Sci. 60:43-46. (with A.J.
Antipas).
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