Hair Sampling Techniques for River Otters
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 a...
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| Veröffentlicht in: | The Journal of wildlife management 2007-04, Vol.71 (2), p.671-674 |
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| container_title | The Journal of wildlife management |
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| creator | DEPUE, JOHN E BEN-DAVID, MERAV |
| description | 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. |
| doi_str_mv | 10.2193/2005-712 |
| format | Article |
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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. 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| ispartof | The Journal of wildlife management, 2007-04, Vol.71 (2), p.671-674 |
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| source | Jstor Complete Legacy; Wiley Online Library Journals Frontfile Complete |
| subjects | Alaska Animal snares Animal traps Aquatic mammals Colorado Deoxyribonucleic acid Design DNA Ecotourism Field study Freshwater Hair hair snares Logistic regression Lontra Lontra canadensis Mammals mark-recapture Methods National parks noninvasive sampling Otters Population Population estimates Rivers Sampling techniques Techniques and Technology Notes Wildlife ecology Wildlife management |
| title | Hair Sampling Techniques for River Otters |
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