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Ronald Oldfield
Ph.D. student
B.S., Biology, University of Toledo, 2000
M.S., Ecology and Evolutionary Biology, University of Michigan, 2003
U-M affiliation(s)
Department of Ecology and Evolutionary Biology
Museum of Zoology, Fish Division
Contact information
University of Michigan
4091 Museums Building
1109 Geddes Avenue
Ann Arbor, MI 48109-1079
Phone: (734) 929-0639
Fax: (734) 763-4080
Email: roldfiel@umich.edu |
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Fields of study
Behavioral ecology, reproduction, and biodiversity in fishes.
Research interests
My current research focuses on describing the developmental, functional, and evolutionary aspects of socially controlled sex determination in fishes.
Academic background
I earned a B.S. in Biology from the University of Toledo in 2000. This work also included courses and research at Bowling Green State University. I came to Michigan immediately after and spent my first year in the masters program. I spent the summer of 2001 at the University of Glasgow (Scotland) before entering Michigan's Ph.D. program that fall.
Advisor
Jerry Smith
Home page
Recent publications
Oldfield, R.G. 2007. Behavioral interaction, body size, and sex determination in the Midas cichlid, Amphilophus citrinellus.
Journal of Fisheries International. 2:242-249.
Oldfield, R.G., McCrary, J., and McKaye, K.R. 2006. Habitat use, social behavior, and female and male size distributions of
juvenile Midas cichlids, Amphilophus cf. citrinellus, in Lake Apoyo, Nicaragua. Caribbean Journal of Science. 42:197-207.
Chakrabarty, P., Oldfield, R.G., and Ng, H.H. 2006. Nandus prolixus, a new species of leaf fish from northeast Borneo
(Teleostei: Perciformes: Nandidae). Zootaxa. 1328:51-61.
Oldfield, R.G. 2005. Sexual lability and the evolution of sequential hermaphroditism in cichlid fishes. Fish and Fisheries.
6:93-110.
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