Anticoagulant Exposure and Notoedric Mange in Bobcats and Mountain Lions in Urban Southern California

Anticoagulant ingestion altered life expectancy from 5 to 2 years greatly impacting reproductive success of a population of 39 bobcats. 35 (90%) tested positive for anticoagulant rodenticides. Multiple compounds were found in 77% of the bobcats tested. Four mountain lions: 2 died from mange/anticoagulants, 2 others found dead also possessed significant levels of anticoagulant rodenticides. Study shows highest apex predator can succumb to rodenticides. Environmental setting is fragmented: open wilderness, & suburbs.

Take Home: In urban/wilderness interface poisoning occurred in nearly 90% of
bobcats and 100% of mountain lions.

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