Assessing the Credibility of Jaguarundi (Puma yagouaroundi) Observations Using Diagnostic Criteria and Witness Qualification

Abstract

Despite its legal protection, the jaguarundi's (Puma yagouaroundi) status in the United States is currently unknown. Historical accounts indicate jaguarundis previously occupied habitats in extreme southern Texas. Although sightings continue to occur in the United States, none have been confirmed, and it is unclear if jaguarundis are still resident. Since the mid-1970s, however, evidence in the form of first-hand observations is suggestive of the presence of jaguarundis in Big Bend National Park. We assessed the credibility of 79 alleged jaguarundi records spanning three decades using a combination of diagnostic criteria and witness credibility. Based on this discriminatory process, we found “strong support” for 40 of these records, and believe a resident, low-density population of jaguarundis may exist in Big Bend. While not as irrefutable as physical evidence, objective reviews of species records may have merit as a tool to help evaluate whether the investment of more rigorous survey techniques is warranted.