Randolph K. Repass and Sally-Christine Rodgers University 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
Pallin, LJ, Baker, CS, Steel, D, Kellar, NM, Robbins, J, Johnston, DW, Nowacek, DP, Read, AJ, and Friedlaender, AS. "High pregnancy rates in humpback whales (Megaptera novaeangliae) around the Western Antarctic Peninsula, evidence of a rapidly growing population." Royal Society Open Science 5, no. 5 (May 2, 2018): 180017-null.
Root-Gutteridge, H, Cusano, DA, Shiu, Y, Nowacek, DP, Van Parijs, SM, and Parks, SE. "A lifetime of changing calls: North Atlantic right whales, Eubalaena glacialis , refine call production as they age." Animal Behaviour 137 (March 2018): 21-34.
Albertson, GR, Friedlaender, AS, Steel, DJ, Aguayo-Lobo, A, Bonatto, SL, Caballero, S, Constantine, R, Cypriano-Souza, AL, Engel, MH, Garrigue, C, Flórez-González, L, Johnston, DW, Nowacek, DP, Olavarría, C, Poole, MM, Read, AJ, Robbins, J, Sremba, AL, and Baker, CS. "Temporal stability and mixed-stock analyses of humpback whales (Megaptera novaeangliae) in the nearshore waters of the Western Antarctic Peninsula." Polar Biology 41, no. 2 (February 2018): 323-340.
Stanistreet, J, Nowacek, D, Bell, J, Cholewiak, D, Hildebrand, J, Hodge, L, Van Parijs, S, and Read, A. "Spatial and seasonal patterns in acoustic detections of sperm whales Physeter macrocephalus along the continental slope in the western North Atlantic Ocean." Endangered Species Research 35 (January 15, 2018): 1-13.
Narazaki, T, Isojunno, S, Nowacek, DP, Swift, R, Friedlaender, AS, Ramp, C, Smout, S, Aoki, K, Deecke, VB, Sato, K, and Miller, PJO. "Body density of humpback whales (Megaptera novaengliae) in feeding aggregations estimated from hydrodynamic gliding performance." Plos One 13, no. 7 (January 2018): e0200287-null.
Collaborative Research: Foraging behavior and ecological role of the least studied Antarctic krill predator awarded by National Science Foundation
Spatial and Acoustic Ecology of Marine Megafauna (SPAM) awarded by University of North Carolina - Wilmington
Acoustic Startle Responses as Aversive Reactions and Hearing Indicators in Cetaceans awarded by University of St. Andrews
ENVIRON 270A: Conservation Biology and Policy (ENVIRON 270A: Conservation Biology and Policy)
ENVIRON 790: Special Topics (ENVIRON 790: Special Topics)
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)
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)