- University of Chicago, Ph.D., 1986
- University of South Carolina, M.S., 1982
- Ohio State University, B.S., 1980
Research InterestsResearch Interests
Dr. Schaefer studies the systematics, biogeography, and evolutionary morphology of tropical freshwater fishes of Africa and South America. His research seeks to resolve problems in taxonomy, classification, and evolution in those fish groups that dominate the ecology of riverine systems, such as catfishes and characiforms. Fieldwork involves discovery of undescribed fish diversity in poorly known regions, such as the Amazon and Orinoco Rivers of South America. Current projects include systematics and biogeography of Andean freshwater fishes and taxonomic revision of the family Astroblepidae, a group of catfishes that live at high elevations in the Andes of South America. He is also engaged in phylogenetic studies of the trichomycterid catfishes and revisions of African alestid characiform fishes. Recent fieldwork in Peru, Ecuador, and Venezuela has surveyed the diversity of Andean fishes up to 4,500 m (14,760 ft.) elevation and resulted in the addition to the Museum of several new and important collections.
- Schaefer, S.A., Chakrabarty, P., Geneva, A., and Sabaj Pérez, M.H. 2011. Nucleotide sequence data confirm diagnosis and local endemism of variable morphospecies of Andean astroblepid catfishes (Siluriformes: Astroblepidae). Zoological Journal of the Linnean Society, 162:90-102.
- Schaefer, S.A. 2011. The Andes: Riding the tectonic uplift, Chapter 16, p. 259-278. In: Historical Biogeography of Neotropical Freshwater Fishes, J.S. Albert and R.E. Reis (eds.), University of California Press, Berkeley.
- Schaefer, S.A. and J. Arroyave. 2010. Rivers as islands: determinants of the distribution of Andean astroblepid catfishes. Journal of Fish Biology, 77:2373-2390.
- Aquino, A.E., and S.A. Schaefer. 2010. Systematics of the genus Hypoptopoma Günther, 1868 (Siluriformes, Loricariidae). Bulletin of the American Museum of Natural History, no. 336, 110 pp.
- Schaefer, S.A. 2010. [review of] Gonorynchiformes and Ostariophysan Relationships: A Comprehensive Review, by Terry Grande (senior volume editor), Francisco José Poyato-Ariza and Rui Diogo (volume co-editors), Enfield (New Hampshire): Science Publishers, x+587 p.; ill.; index, 2010. Quart. Rev. Biol. 85:516-517.
- Schaefer, S.A., and L. Fernández. 2009. Redescription of the Pez Graso, Rhizosomichthys totae (Trichomycteridae), of Lago de Tota, Colombia, and aspects of cranial osteology revealed by microtomography. Copeia, 2009(3):513-525.
- Fernández, L., and S.A. Schaefer. 2009. Relationships among the Neotropical Candirus (Trichomycteridae, Siluriformes) and the evolution of parasitism based on analysis of mitochondrial and nuclear gene sequences. Molecular Phylogenetics and Evolution, 52(2):416-423.
- Schaefer, S.A. 2009. Family Loricariidae, Subfamily Hypoptopomatinae. p. 38-39. In: Checklist of the Freshwater Fishes of the Guiana Shield, R.P. Vari, C.J. Ferraris, Jr., A. Radosavljevic, V.A. Funk (eds.), Bulletin of the Biological Society of Washington, no. 17.
Teaching ExperienceTeaching Experience
- Investigador Asociado, Instituto de Zoologia Tropical, Facultad de Ciencias, Universidad Central de Venezuela, 2001-present
- Adjunct Associate Professor, Graduate School and University Center, CUNY, 1998-present
- Adjunct Assistant Professor, Department of Biology, University of Pennsylvania, 1992-1996
- Jairo Arroyave, CUNY, Ph.D 2013, dissertation advisor