Presenter is Dr. Ken Steigman, director of the Lewisville Lake Environmental Learning Area, a 2,600-acre preserve managed by a non-profit consortium headed by The University of North Texas. LLELA's mission is to preserve and restore native ecosystems and biodiversity of north Texas and to provide and promote environmental education and research. Dr. Steigman has 36 years of experience in working with the public to participate and enjoy restoring and managing native ecosystems.