Rafinesque's big-eared bat (Corynorhinus rafinesquii) and southeastern myotis (Myotis austroriparius) are listed as species of concern in Mississippi. They use bottomland hardwood forests for roosting habitat; however, much of these forests in Mississippi have been lost or degraded. I seek to characterize availability and evaluate use of diurnal tree roosts for these presumably rare bats.
Approximately 1,250 ha of bottomland hardwood forest on Noxubee National Wildlife Refuge were surveyed. I measured characteristics of 622 cavity trees. Analyses revealed that these bats most often used cavities of large diameter trees (≥70 cm DBH). Rafinesque's big-eared bat and southeastern myotis roosted commonly in baldcypress (Taxodium distichum), black tupelo (Nyssa sylvatica), and American sycamore ( Platanus occidentalis). This research will be used to provide guidance for management plans to conserve these bats and their habitat.
|Advisor:||Jones, Jeanne C.|
|Commitee:||Leopold, Bruce D., Miller, Darren A., Richardson, David M., Vilella, Francisco J.|
|School:||Mississippi State University|
|Department:||Wildlife and Fisheries|
|School Location:||United States -- Mississippi|
|Source:||MAI 47/02M, Masters Abstracts International|
|Keywords:||Bottomland hardwoods, Cavity tree, Corynorhinus rafinesquii, Myotis austroriparius, Rafinesque's big-eared bat, Southeastern myotis|
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