Randolph K. Repass and Sally-Christine Rodgers University Associate Professor of Conservation Technology in the Nicholas School of the Environment and the Edmund T. Pratt, Jr. School of Engineering
Sound propagates very efficiently through sea water, and marine mammals take advantage of this medium to communicate and explore their environment. My research is focused on the link between acoustic and motor behavior in marine mammals, primarily cetaceans and manatees, specifically, how they use sound in ecological processes. The cetaceans, or whales and dolphins, are divided into two main groups, the toothed whales (odontocetes) and the baleen whales (mysticetes). One of my specific areas of research is the use of echolocation and foraging behavior in one of the odontocetes, the bottlenose dolphin. Another focus of my current research is the effect(s) of anthropogenic noise on marine mammals.
In The News
Wilson, RM, Tyson, RB, Nelson, JA, Balmer, BC, Chanton, JP, and Nowacek, DP. "Niche differentiation and prey selectivity among common bottlenose dolphins (Tursiops truncatus) Sighted in St. George Sound, Gulf of Mexico." Frontiers in Marine Science 4, no. JUL (July 26, 2017).
Tyson, RB, Piniak, WED, Domit, C, Mann, D, Hall, M, Nowacek, DP, and Fuentes, MMPB. "Novel Bio-Logging Tool for Studying Fine-Scale Behaviors of Marine Turtles in Response to Sound." Frontiers in Marine Science 4 (July 14, 2017).
Quick, N, Scott-Hayward, L, Sadykova, D, Nowacek, D, and Read, A. "Effects of a scientific echo sounder on the behavior of short-finned pilot whales ( Globicephala macrorhynchus )." Canadian Journal of Fisheries and Aquatic Sciences 74, no. 5 (May 2017): 716-726.
Paxton, AB, Taylor, JC, Nowacek, DP, Dale, J, Cole, E, Voss, CM, and Peterson, CH. "Seismic survey noise disrupted fish use of a temperate reef." Marine Policy 78 (April 2017): 68-73.
Quick, NJ, Isojunno, S, Sadykova, D, Bowers, M, Nowacek, DP, and Read, AJ. "Hidden Markov models reveal complexity in the diving behaviour of short-finned pilot whales." Scientific Reports 7 (March 31, 2017): 45765-.
ENVIRON 270A: Conservation Biology and Policy (ENVIRON 270A: Conservation Biology and Policy)
ENVIRON 280LA: Sound in the Sea: Introduction to Marine Bioacoustics (ENVIRON 280LA: Sound in the Sea: Introduction to Marine Bioacoustics)
BIOLOGY 293A: Research Independent Study (BIOLOGY 293A: Research Independent Study)
ECE 495: Special Topics in Electrical and Computer Engineering (ECE 495: Special Topics in Electrical and Computer Engineering)
ENVIRON 784LA: Sound in the Sea: Introduction to Marine Bioacoustics (ENVIRON 784LA: Sound in the Sea: Introduction to Marine Bioacoustics)
area(s) of expertiseConservation Ecology Marine Science Oceanography Advisor: MSC Doctoral Program Advisor: UPE Doctoral Program
Duke Univ Marine Lab, 135 Duke Marine Lab Rd
Beaufort, NC 28516
Ph.D., Massachusetts Institute of Technology (1999)
B.A., Ohio Wesleyan University (1991)