Wildlife whodunnit: forensic identification of predators to inform wildlife management and conservation
نویسندگان
چکیده
Genetic evidence at predation sites is rapidly improving predator-prey interaction studies and can provide information beyond field-based investigations. However, factors contributing to the retention of genetic have received limited investigation in a field setting, researchers yet leverage improve traditional Using data from 61 mortality investigations mule deer (Odocoileus hemionus), white-tailed (O. virginianus), elk (Cervus canadensis), we evaluated influencing predator DNA amplification success misidentification predators We found that was detected more for prey with higher body mass (18.5% increase per standard deviation [23.1 kg] carcass above mean [32.8 kg]). Predator also 27.0% likely amplify when collected kill had not undergone freeze-thaw cycle between investigation. The delay investigation, swabbing surface, amount precipitation did influence DNA. Misidentifications based on ID were influenced by or investigator confidence level, suggesting investigators should collect even they feel certain about predator. Errors identifying during increased smaller mass, actually be misidentified than correctly identified fawns calves < ~21 kg. Black bears (Ursus americanus), bobcats (Lynx rufus), cougars (Puma concolor), coyotes (Canis latrans), wolves (C. lupus) equally missed but tended falsely assigned expected as less expected. validation, showed how patterns signs left differed some species depending size prey. Our findings help managers optimize their use genetics enhance
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ژورنال
عنوان ژورنال: Wildlife Society bulletin
سال: 2022
ISSN: ['1938-5463', '0091-7648']
DOI: https://doi.org/10.1002/wsb.1386