Douglas Tallamy discusses his book, "Bringing Nature Home: How You Can Sustain Wildlife with Native Plants." By trading wild spaces for uncontrolled expansion and replacing native species with alien species, Tallamy contends the survival of wildlife has been threatened.

Saving ecological communities requires taking an active role in the preservation process, according to Tallamy, professor and chair of the Department of Entomology and Wildlife Ecology at the University of Delaware in Newark.

Tallamy's research has provoked an international discussion about the link between healthy local ecosystems and human well-being. Timely and widely discussed, Tallamy's work is "the perfect antidote to the belief that nature happens somewhere else," said Richard Louv, author of "Last Child in the Woods."

The lecture is free and open to the public.