The Spotted Owl’s Barred Dilemma with Jack Dumbacher of the California Academy of Sciences скачать в хорошем качестве

The Spotted Owl’s Barred Dilemma with Jack Dumbacher of the California Academy of Sciences

Join the Environmental Action Committee of West Marin (EAC) for our 2020 online Point Reyes Birding & Nature Festival with Jack Dumbacher, Curator of Ornithology and Mammalogy at the California Academy of Sciences (CAS) in San Francisco to hear new research about the Spotted Owl’s dilemma with the Eastern Barred Owl. Attendees will learn how the Eastern Barred Owl has made its way to the Western USA in the last 50 to 100 years. Presumably helped by human landscape alteration, they now inhabit all of the range of the endangered Northern Spotted Owl and much of that of the California Spotted Owl. In recent years, evidence is mounting to suggest that Barred Owls have become a primary threat to Spotted Owls – they are fierce competitors, aggressive territory holders, faster reproducers, and have even been anecdotally reported to kill Spotted Owls. And they are spreading faster than ever. In this talk, Jack will discuss the natural history and conservation concerns for both species, and discuss research and potential actions that are being considered by different management agencies. Speaker Bio: Jack Dumbacher is a PhD biologist, specializing in avian genetics and avian chemical defense, and dabbling in lots of other things related to birds and mammals. He received his undergraduate degree at Vanderbilt University, and his PhD at University of Chicago, and worked for several years at the Smithsonian Institution with Rob Fleischer and others. In 2003, he became Curator of Ornithology and Mammalogy at the California Academy of Sciences in San Francisco. Jack is also a professor of Biology at San Francisco State University. He has been researching and studying California Barred Owls since 2006. Learn More: www.eacmarin.org www.pointreyesbirdingfestival.org