A professor of ecology and evolutionary biology at the University of California, Santa Cruz, will present a brown bag seminar titled “Adventures in nature and the pathways to ecological understanding” at noon Thursday, Sept. 8 at the University of Maine Darling Marine Center. Jim Estes’ talk will feature excerpts from his book “Serendipity; An Ecologist’s read more ‘Serendipity’ author to speak Sept. 8 at DMC