You are here
- 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.
- Cruise, Chelsie E., Bainbridge, Elizabeth G., Redmond, Kyle, Johnson, Meghan L.
Cruise, Chelsie E., Elizabeth G. Bainbridge, Kyle Redmond, Megan Johnson and Gerald L. Zuercher. "Assessment of a Southern Flying Squirrel (Glaucomys volans) Population in the Upper Mississippi River Watershed." Chlapaty Research Fellowship, 2012.
Southern flying squirrels, Glaucomys volans, are a “species of concern” in Iowa. Within Iowa, they are considered “uncommon” with an “unknown” population trend. This assessment appears driven by a lack of information for the species. While their reported distribution in Iowa includes all but the extreme northwest corner, there are relatively few records of the species for the state. Beginning in early June 2012, we surveyed southern flying squirrels along four transects within Mines of Spain Recreation Area (MoSRA), a state park located in Dubuque County, Iowa. These transects also were sampled in 2011. We used Ugglan multi-capture live-traps, baited with peanut butter mixed with raisins, which were placed on trees approximately 5-meters above ground level. Traps were checked each morning, for five consecutive days, every other week. To date, 18 flying squirrels have been captured and marked with PIT (Passive Integrated Transponder) tags. Capture rates for 2012 were lower than for 2011. Also, patterns of capture success differed between years; the highest capture success for 2012 comes from the transect with the lowest capture success in 2011. We will summarize our capture data for 2012 and compare to previous years.