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1 April 2007 Hair Sampling Techniques for River Otters
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Abstract

River otter (Lontra canadensis) populations have been difficult to monitor and information on densities is lacking throughout their range. To obtain DNA-based population estimates of river otters we developed 2 traps to capture hair; a modified body-snare and a modified foot-hold trap. Of 82 traps activated 77 captured hairs (94%). Traps snagged 3–20 guard hairs per capture. Our capture rates of otter hair ranged from one capture per 3.6 trap nights to one capture per 156.6 trap-nights. Our traps provide an effective, noninvasive technique for obtaining hair DNA from individual river otters.

John E. Depue and Merav Ben-David "Hair Sampling Techniques for River Otters," Journal of Wildlife Management 71(2), 671-674, (1 April 2007). https://doi.org/10.2193/2005-712
Published: 1 April 2007
JOURNAL ARTICLE
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