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Title: Southern Flying Squirrels (Glaucomys volans) as major predators of avian nest boxes
Authors: DeGregorio, Brett A.
Sperry, Jinelle H.
Kovar, Daniel G.
Steen, David A.
Keywords: Bird populations
Birds--Nests--Effect of predation on
Southern flying squirrel
Longleaf pine
Publisher: Engineer Research and Development Center (U.S.)
Series/Report no.: Miscellaneous Paper (Engineer Research and Development Center (U.S.)) ; no. ERDC/CERL MP-22-2
Is Version Of: DeGregorio, Brett A., Jinelle H. Sperry, Daniel G. Kovar, and David A. Steen. "Southern Flying Squirrels (Glaucomys volans) as Major Predators of Avian Nest Boxes in Conecuh National Forest, Alabama." Southeastern Naturalist 18, no. 3 (2019): 476-488.
Abstract: Bird population dynamics are strongly affected by the ability to successfully reproduce, and nest predation is the primary cause of reproductive failure for most birds. Efforts to understand nest predation and manage its effects on species of conservation concern require knowledge of the ecology of associated predator assemblages. Recently, studies using cameras to record events at nests have illuminated this previously under-studied avian life stage, but such studies have been largely limited to open-cup nests. Cavity nests may be depredated by a different suite of predators and incubating or brooding females occupying such nests may be more vulnerable to predation relative to open-cup nests. Here, we used motion-activated, infrared trail cameras to record predators of artificial nest boxes in a Pinus palustris Mill. (Longleaf Pine) forest in southern Alabama. Although Glaucomys Volans L. (Southern Flying Squirrel) have only rarely been captured on film preying on nests, we found them to be responsible for the vast majority (84%) of bird-nest depredations at nest boxes, and these depredations contributed to a surprisingly low overall rate of nest success (~20%). These results may have implications for the conservation of birds that nest in artificial cavities in Longleaf Pine forests and highlight the importance of further studies on predator assemblages and their effects on nesting birds.
Description: Miscellaneous Paper
Gov't Doc #: ERDC/CERL MP-22-2
Rights: Approved for Public Release; Distribution is Unlimited
Size: 18 pages / 1.38 MB
Types of Materials: PDF/A
Appears in Collections:Miscellaneous Paper

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