Dr. John D. Wehausen is an applied population ecologist who has studied bighorn sheep populations in California since 1974. He has carried out intensive studies of bighorn sheep populations in the White and Inyo Mountains in addition to the Sierra Nevada. In 1995 John helped found the Sierra Nevada Bighorn Sheep Foundation and has served as its president throughout its history. In 2012 Dr. Wehausen retired as an Associate Research Scientist with WMRC, but continues to work full time on bighorn sheep conservation issues in California including the Sierra Nevada. In this talk Dr. Wehausen will discuss his career studying bighorn sheep. This talk is free and open to the public. It will be recorded and posted to our YouTube channel on a later date.