Dac Crossley is a Professor Emeritus of Ecology at the Odum School of Ecology, University of Georgia, Athens, USA. He served as Director the Graduate Program in Ecology, at the Institute of Ecology at UGA since its inception. He was Principal Investigator of the Coweeta Long-Term Ecological Research site in North Carolina. He has served as editor and reviewer of numerous ecological and entomological journals. He currently serves as an associate curator at the Georgia Museum of Natural History where he curates the soil mite collection.