Research Website
https://web.ics.purdue.edu/~eflaher/
Keywords
forest management, Glaucomys volans, passive acoustic sampling, timber harvest, ultrasonic vocalization
Presentation Type
Event
Research Abstract
Southern flying squirrels (Glaucomys volans) are gliding small mammals that are ecologically important seed dispersers and prey species across their wide range, which extends from southern Canada to Central America. Because of their reliance on forest structure for efficient movement and on forest composition for hard mast production to provide winter food items, habitat use by G. volans may be impacted by timber harvest. Responses of G. volans to timber harvests remains understudied throughout their range, and studies are especially lacking within the Central Hardwoods Region that includes Indiana. Our study in the Hardwood Ecosystem Experiment (HEE) in southern Indiana examined responses in G. volans activity to even- and uneven-aged forestry using passive acoustic sampling. We examined data from Anabat II recorders positioned within and around harvested areas for ultrasonic G. volans vocalizations to determine activity levels in uneven-aged, even-aged, and no harvest treatments in the year following treatment. We identified G. volans calls via comparison to a library of known calls. We used the mean number of calls per night as an estimate of G. volans activity. Our preliminary results found G. volans activity in the treatment area edge and surrounding forest for all treatment types. We found the greatest activity in the interior of uneven-aged patch cuts, whereas even-aged clearcuts and no harvest treatment interiors had lower levels of activity. We found no activity in the interior of even-aged shelterwoods. These results suggest that uneven-aged harvests have less impact on G. volans activity than even-aged forest management.
Session Track
Sustainability
Recommended Citation
Joseph W. Eisinger, Elizabeth A. Flaherty, and Stephanie E. Trapp,
"Surveys of Southern Flying Squirrel Activity Following Timber Harvest in Southern Indiana"
(August 7, 2014).
The Summer Undergraduate Research Fellowship (SURF) Symposium.
Paper 30.
https://docs.lib.purdue.edu/surf/2014/presentations/30
Included in
Forest Biology Commons, Forest Management Commons, Terrestrial and Aquatic Ecology Commons
Surveys of Southern Flying Squirrel Activity Following Timber Harvest in Southern Indiana
Southern flying squirrels (Glaucomys volans) are gliding small mammals that are ecologically important seed dispersers and prey species across their wide range, which extends from southern Canada to Central America. Because of their reliance on forest structure for efficient movement and on forest composition for hard mast production to provide winter food items, habitat use by G. volans may be impacted by timber harvest. Responses of G. volans to timber harvests remains understudied throughout their range, and studies are especially lacking within the Central Hardwoods Region that includes Indiana. Our study in the Hardwood Ecosystem Experiment (HEE) in southern Indiana examined responses in G. volans activity to even- and uneven-aged forestry using passive acoustic sampling. We examined data from Anabat II recorders positioned within and around harvested areas for ultrasonic G. volans vocalizations to determine activity levels in uneven-aged, even-aged, and no harvest treatments in the year following treatment. We identified G. volans calls via comparison to a library of known calls. We used the mean number of calls per night as an estimate of G. volans activity. Our preliminary results found G. volans activity in the treatment area edge and surrounding forest for all treatment types. We found the greatest activity in the interior of uneven-aged patch cuts, whereas even-aged clearcuts and no harvest treatment interiors had lower levels of activity. We found no activity in the interior of even-aged shelterwoods. These results suggest that uneven-aged harvests have less impact on G. volans activity than even-aged forest management.
https://docs.lib.purdue.edu/surf/2014/presentations/30