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Methods to Reduce Avian By-Catch in Small Mammal Studies Using Snap Traps

Vanessa R. Lane, Karl V. Miller, Steven B. Castleberry, Darren A. Miller, T. Bently Wigley
Publication Information
Journal: 
Oriole
Volume: 
75
Issue: 
1-4
Section: 
Poster Abstracts
Year: 
2010
Pages: 
25
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PDF icon Vol75p25.pdf1.05 MB

METHODS TO REDUCE AVIAN BY-CATCH IN SMALL MAMMAL STUDIES USING SNAP TRAPS

Vanessa R. Lane1, Karl V. Miller1, Steven B. Castleberry1, Darren A. Miller2, and T. Bently Wigley3
1D.B. Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA 30602 2 Timberlands Technology, Weyerhaeuser NR Company, Columbus, MS 39704 3 National Council for Air and Stream Improvement, Inc., Clemson, SC 29634

Abstract: Avian by-catch, a common and undesired occurrence in small mammal studies, should be minimized by researchers. We examined trap covering, treadle color (copper or yellow plastic), trap size (mouse or rat), and trap weathering (traps <1 yr or ≤1 yr old) on avian by-catch during 3 years. We found that covered traps caught 81% fewer birds and 70% fewer small mammals than did uncovered traps, that mouse traps caught 30% more birds and 38% more small mammals than did rat traps, and no capture differences for treadle color or trap weathering. Covered traps effectively reduced avian by-catch and should be used when reduced small mammal capture rates are acceptable.

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