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- Bainbridge, Elizabeth L., Cruise, Chelsie E., Kieffer, Lea M., Matthews, Aaron J.
Bainbridge, E.G., Cruise, C.E., Kieffer, L.M., Matthews, A.J., Koch, David E., & Zuercher, G.L. “Gender Differences in Home-Ranges for Southern Flying Squirrels (Glaucomys volans) in Eastern Iowa.” Poster presentation for the Chlapaty Research Fellowship, 2012.
Abstract: In Iowa, southern flying squirrels (Glaucomys volans) are considered a “Species of Special Concern”. This stems mainly from a lack of information about the ecology of southern flying squirrels within the state. Students at the University of Dubuque have been studying this species at Mines of Spain Recreation Area (MoSRA) in eastern Iowa for several years. Beginning in August, 2011 flying squirrels have been fitted with telemetry transmitters in an effort to better understand their spatial needs and movement patterns within the park. Transmitters were affixed to ten flying squirrels which were captured from different parts of the park. The goals were to: 1) determine their locations on a regular basis (usually nightly); 2) calculate home ranges and average daily movement distances; 3) compare between individuals to evaluate whether spatial needs are consistent throughout the park; and 4) determine whether or not females occupy different spatial ranges from male squirrels. While a few flying squirrels have yielded only a few locations, most flying squirrels were routinely located for several weeks each. It appears that the spatial needs of both male and female squirrels changes through time. These data hopefully will yield a better understanding of flying squirrel ecology.
- Redmond, Kyle D., Johnson, Megan M., Baindbridge, Elizabeth G., Cruise, Chelsie E., O'Rourke, Jake M., Kieffer, Lea M., Marr, Shelby L.
Redmond, Kyle .D., Johnson, Megan M., Bainbridge, Elizabeth G.,Cruise, Chelsie E., O’Rourke, Jake M., Kieffer, Lea M., Marr, Shelby L., Zuercher, Gerald L., & Koch, David E. “The Impact of Habitat Variation on Small Mammal Distribution in Eastern Iowa.” Poster presentation for the Chlapaty Research Fellowship Program, University of Dubuque, 2012.
Historically, a diverse community of small mammals occurred within Iowa, most of which were associated with the abundant prairies. It is important to examine the impact of ever-decreasing native prairie in Iowa on small mammal communities. We examined the relationship between habitat and small mammal communities at Whitewater Canyon Wildlife Area (WCWA), a park at the border of Dubuque, Jackson, and Jones Counties in Iowa. The park totals 419 acres and consists of four different types habitat; native prairie, restored prairie, woodland, and cornfield. The park is surrounded on all sides by corn or soybean fields. Small mammals were trapped every other week on five transects using live-traps baited with peanut butter. Strategically placed pitfall traps supplemented the basic trapping protocol. A total of seven species were captured: white-footed mice (Peromyscus leucopus), western jumping mice (Zapus hudsonicus), meadow vole (Microtus pennsylvanicus), prairie vole (Microtus ochrogaster), eastern chipmunks (Tamias striatus), eastern short-tailed shrew (Blarina brevicauda), and masked shrew (Sorex cinereus). Additionally, 13-lined ground squirrels (Spermophilus tridecimlineatus), though never captured in a trap, were regularly spotted on the property; their locations were noted. The presence of eastern moles (Scalopus aquaticus) also was noted wherever encountered. Species richness and species diversity were determined for each transect. Small mammal communities differed for all transects, likely reflecting different habitat preferences for each species. It appears that overall species diversity for the park is enhanced by the maintenance of multiple habitat types.