Noted researcher, and historian Dr. Peter S. Alagona, will be the guest speaker for UAH Distinguished Speaker series next month. Alagona's talk entitled "Species Complex: Classification and Conservation in American Environmental History," will be presented on Monday, March 16, at 4 p.m., on the UAH campus in the Wilson Hall Theater (room 001). Alagona's visit is sponsored by the UAH History Department and The Humanities Center. The event is free and open to the public.