I focus on investigating the interplay of physiological constraints, behavioral plasticity and environmental variability in populations of diving, airbreathing vertebrates - mostly pinnipeds. Recently I have also become more interested in predator-prey interactions. My projects include basic science and research applied toward conservation and management of marine living resources. I enjoy developing new experimental designs, technologies and analytical approaches.
Associate Professor of Wildlife Ecology, Oregon State University
Science Director, Alaska SeaLife Center
Research Scientist, Texas A&M University at Galveston
Postdoctoral Research Physiologist, Scripps Institution of Oceanography
University of Bielefeld, Dr. rer. nat.
University of Freiburg, Diplom
In cold blood: evidence of Pacific sleeper shark (Somniosus pacificus) predation on Steller sea lions (Eumetopias jubatus) in the Gulf of Alaska, Fishery Bulletin 112:297-310
Constraint lines and performance envelopes in behavioral physiology: the case of the aerobic dive limit, Frontiers in Physiology 2012:3.381
Predation on an upper trophic marine predator, the Steller sea lion: evaluating high juvenile mortality in a density dependent conceptual framework, PLoS ONE 7(1):e30173
Spatially explicit detection of predation on individual pinnipeds from implanted post-mortem satellite data transmitters, Endangered Species Research 10:135-143
Diving into old age: muscular senescence in a large-bodied, long-lived mammal, the Weddell seal (Leptonychotes weddellii), Journal of Experimental Biology 212:790-796