R.H. Defran PhD:Bowling Green State University, 1972 Affiliate Assistant Professor Research interests: marine mammal behavior and population dynamics Contact information Email: rh.defran@gmail.com http://www.sci.sdsu.edu/CBL/Director.html

Hanson, M. T. and R. H. Defran.  1993.  The behavior and ecology of Pacific coast bottlenose dolphins.  Aquatic Mammals 193:127-142.

Defran, R. H. and D. W. Weller.  1999.  Occurrence, distribution, site fidelity, and school size of bottlenose dolphins (Tursiops truncatus) off San Diego, California.  Marine Mammal Science 15:366-380.

Defran, R. H., D. W. Weller, D. L. Kelly, and M. A. Espinosa.  1999.  Range characteristics of Pacific coast bottlenose dolphins (Tursiops truncatus) in the Southern California Bight. Marine Mammal Science 15:381-393.

Campbell, G. S., B. A. Bilgre and R. H. Defran.  2002. Bottlenose dolphins (Tursiops truncatus) in Turneffe Atoll, Belize: occurrence, site fidelity, group size and abundance, Aquatic Mammals 28:170-180.

Bossart, G. D., R. Meisner, R. Varela, M. Mazzoil, S. McCulloch, D. Kilpatrick, R. Friday, E. Murdoch, B. Mase, and R. H. Defran.  2003.  Pathologic findings in stranded Atlantic bottlenose dolphins (Tursiops Truncatus) from the Indian River Lagoon, Florida.  Florida Scientist 66:226-238.

Mazzoil, M., S. D. McCulloch, R. H. Defran and E. Murdoch.  2004.  The use of digital photography and analysis for dorsal fin photo-identification of bottlenose dolphins.  Aquatic Mammals 30:209-219.

Bossart, D., R. Meisner, S.A. Rommel, J.D. Lightsey, R. A. Varela, and R.H. Defran.  2004. Pathologic findings in Florida manatees, (Trichechus manatus latirostris). Aquatic Mammals 30:434-440.

Kerr, K., R.H. Defran and G.S. Campbell.  2005. Bottlenose dolphins (Tursiops truncatus) in the Drowned Cayes, Belize: group size, site fidelity and abundance. Caribbean Journal of Science 41:172-177.

Mazzoil, M., S. D. McCulloch and R. H. Defran. 2005. Observations on the site fidelity of bottlenose dolphins (Tursiops Truncatus) in the Indian River Lagoon, Florida. Florida Scientist 68:217-227.

Bossart, G.D., S. Ghim, M. Rehtanz, J. Goldstein, R. Varela, R. Ewing, P. Fair, R. Lenzi, B. Joseph, C. Hicks, L. Schneider, C.J. McKinnie, J.S. Reif, R. Sanchez, A. Lopez, S. Novoa, J. Bernal, M. Goretti, M. Rodriguez, R.H. Defran, and Jenson A. B. 2005. Orogenital neoplasia in Atlantic bottlenose dolphins (Tursiops truncatus). Aquatic Mammals 31:473-480.

Goldstein, J., E. Reese, J.S. Reif, R.A. Varela, S.M. McCulloch, R.H. Defran, P. Fair, G.D. Bossart. 2006. Hematologic, biochemical, and cytologic findings from apparently healthy Atlantic bottlenose dolphins (Tursiops truncates) inhabiting the Indian River Lagoon, Florida” Journal of Wildlife Diseases 42:447-454.