Show simple item record

dc.contributor.authorCaylor, Megan K
dc.date.accessioned2011-09-19T16:53:05Z
dc.date.accessioned2015-10-01T13:47:31Z
dc.date.available2011-09-19T16:53:05Z
dc.date.available2015-10-01T13:47:31Z
dc.date.issued2011-09-19T16:53:05Z
dc.identifier.urihttp://hdl.handle.net/10484/1857
dc.description.abstractThe Hardwood Ecosystem Experiment (HEE) in central Indiana presents an excellent opportunity to study species reactions to different forestry practices: clearcutting, shelter wood cutting, and single tree selections. This project focuses on the differences in the populations and diets of the various insectivorous bat species in the HEE management units. Bats studied were Myotis septentrionalis, Lasiurus borealis, Eptesicus fuscus, Perimyotis subflavus, Myotis sodalis, Myotis lucifugus, and Lasionycteris noctivagans. Since insectivorous bats do not simply eat whatever is available, and I hypothesize that the diets of these bats will not change despite their changing environment and changing populations. To test these ideas, guano was collected between years 2006-2010 and ANABAT calls were recorded between years 2007-2010. I analyzed 440 guano samples, and the invertebrate parts were identified visually to the lowest taxonomic level within a reasonable amount of time; this is most often to family, but always order for the Lepidopterans. The data were compared within each species: before and after treatment, across treatment types, between males and females, and across different months. There was no significant change between bat diets before and after treatments, and each species maintained a specific diet across the years. These results reinforce previous conclusions that bats select among available foods and do not simply eat whatever is available. I also analyzed 5346 call minutes using ANABAT bat detectors. There were significant changes in Myotis sodalis, Lasiurus borealis, and Perimyotis subflavus call minutes. This supports the hypothesis that the diets still remain constant despite the changes in the species populations.
dc.description.statementofresponsibilityCaylor,Megan K
dc.language.isoen
dc.subject.lcshBats--Food.
dc.subject.lcshInsectivores (Mammals).
dc.subject.lcshForests and forestry.
dc.subject.lcshAnabat bat detection systems.
dc.subject.lcshAnimal population density.
dc.subject.lcshHabitat (Ecology)--Indiana.
dc.subject.otherHardwood Ecosystem Experiment.
dc.titleImpacts of Different Forest Tree-Harvest Methods on Diets and Populations of Insectivorous Forest Bats
dc.typeThesis
dc.date.graduationmonthAugust
dc.date.published2011
dc.description.committeechairWhitaker, John O.
dc.description.committeemembersLima, Steven L.
dc.description.committeemembersScott, Peter E.
dc.description.degreeMaster of Science
dc.description.departmentDepartment of Biology
dc.description.imprintCunningham Memorial library, Terre Haute, Indiana State University
dc.description.itemidetd20110919-001
dc.description.levelMasters
dc.description.noteTitle from document title page. Document formatted into pages: contains 61p.: ill. Includes bibliography, abstract and appendix.
refterms.dateFOA2021-06-02T10:35:11Z


Files in this item

Thumbnail
Name:
Caylor, Megan.PDF
Size:
3.145Mb
Format:
PDF

This item appears in the following Collection(s)

Show simple item record