Robert A Krebs (Bob Krebs), Ph.D.
 Title: Professor
 Dept: Biology, Geology, Environmental Science
 Office: SI 214
 Phone: 216-523-7553
 Fax: 216-687-6972
 Address: 2121 Euclid Ave. SI 214, Cleveland, OH 44115

Courses Taught


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B.S., Biochemistry, Virginia Tech, 1984
M.S., Biology, Virginia Tech, 1986
Ph.D., Zoology, Arizona State University, 1989
Brief Bio:
My research interests have moved from a long history of work on the underlying physiological and ecological causes of population divergence primarily in Drosophila as a model organism, to an examination of the response of freshwater mussels in the family Unionidae to the many stresses imposed by urbanization, agriculture and habitat destruction. Loss of unionid mussels has become both a state and national wildlife concern. Within the Lake Erie watershed, populations in the numerous small rivers flowing to the lake are now largely isolated, as the introduction of zebra and quagga mussels (family Dreissinidae) decimated native mussel populations. My goal is to describe the biogeographic history of unionids in the region.  Approaches include studies of both historical change in distributions by accessing museum collections, conducting surveys of the mussel fauna in each of northern Ohio's rivers, and by conducting a genetical analysis of mtDNA variation.  These approaches combined with collaboration with Dave Zanatta of Central Michigan on an extenve survey of the lower Great Lakes are enabling us to better describe the ecological history of this taxonomic group and to model a plan for the recovery of these threatened fauna.
Honors and Awards:
First McNair Mentor-of-the-year (May, 2012)
Research Interests:
Research interests are varied, but my primary area of interest at this time involve studies of the historical change in the distrubutions of freshwater mussels (Unionidae).  These mussels have declined in abundance and diversity within the region, making this research important to efforts in their conservation. This system provides an important tool for understanding changes to the ecosystem, as the Lake Erie community is geologically young. Almost all of the species present in this region today colonized the area after the retreat of the last glaciers. Therefore, this system also provides a model of genetic changes associate with colonizing new areas, and the impacts to populations often isolated in various refugia after they become established.

With a small ecological group of faculty, I remain actively involved with graduate students whose interests can be quite diverse, including evolutionary changes in smallmouth bass, coyotes and stone flies in the Great Lakes region, and even the evolution of flower dimorphism and the effect of environmental stress on leaf symmetry. Most new projects, however, are expected to be directed towards studies of unionids and other mollusks in the region.
Teaching Areas:
Animal diversity, Behavior, Biogeography, Evolution, Population Biology, Writing in Biology, and Human Biology (for non-majors).
Professional Affiliations:
European Evolution Society
Freshwater Mollusk Conservation Society
Ohio Academy of Sciences
Sigma Xi
Society for Freshwater Science
Cleveland Zoological Society
University Service:
Currently I serve as the AAUP Vice President
Faculty representative to the General Safety Committee (2012 - )
member Faculty Senate (Fall 2011- present)
Academic Steering Committee of the Faculty Senate (Fall 2012 ¿ present)
University Athletic Committee (2013-present, currently Chair)
COSHP Peer Review Committee (Fall, 2013-present)
Professional Service:
Occasional Reviewer
African Journal of Aquatic Science; Annales de Limnologie; Annals of the Entomological Society of America; Austral Ecology; Biological Journal of the Linnean Society; Bulletin of Insectology; Canadian Journal of Zoology; Cell Stress and Chaperones; Chinese Journal of Oceanography and Limnology, Comparative Biochemistry and Physiology; Environmental Entomology; European Journal of Entolomolgy; Evolution; Functional Ecology; Genetica; Genetics; Hereditas; International Journal of Plant Sciences; International Journal of Tropical Biology, Journal of Biogeography, Journal of Economic Entomology, Journal of Evolutionary Biology; Journal of Experimental Biology; Journal of Thermal Biology; Journal of Great Lakes Research; Journal of Insect Physiology; Journal of Medical Entomology; Journal of Thermal Biology; Kansas Academy of Sciences Transactions; Kirtlandia; Molecular Ecology; Molecular Phylogenetics and Evolution; Nature; Northwestern Naturalist; Oceanologia; Oecologia; Ohio Journal of Science; Physiological and Biochemical Zoology; PLOS-1, Proceedings of the Royal Society of London, series B., Biology; Proceedings of the National Academy of Sciences (USA), Science of the Total Environment  

Review of Texts/Edited Books: Miller and Harley, Zoology 5th ed., selected chapters, MacGraw Hill, Freeman and Herron, Evolutionary Analysis, 1st ed., Prentice Hall, Halliburton, Population Genetics 1st ed., selected chapters, Prentice Hall. Goodenough, Human Biology, 1st ed. selected chapters, Prentice Hall; Environmental Factors, Cellular Stress and Evolution, S. C. Lakhotia, editor.

Reviews for Grant Agencies: served on an NSF Panel for DDIG awards (March, 2003), NSF grant reviews (several annually), NWO Veni programme (Innovational Research Incentive Scheme, The Netherlands). Outside Ph.D. dissertation evaluations: Aarhus Univeristy, DK, Melbourne University, AU, Monash University, AU, Stellenbosch University, South Africa.
Community Service:
I work with the Cleveland Museum Natural History, Natural Areas division and both the Cuyahoga County and Geauga County Metroparks.
Research Grants:
2010-2011 - The Lake Erie Protection Fund. Protecting mussel habitat on Lake Erie's coast ($14,707).
2011-2012 Geauga County Parks - Interconnectivity of the mussel fauna in the Geauga County highlands: a study of the adjacent headwater streams within the Chagrin, Cuyahoga, and Grand River watersheds ($3,000; revised budget for 2012).
2012 Summer The distribution of the state endangered Eastern Pondmussel. Internally funded from the CSU Provost's Office initiative for Engaged Learning ($3,607).
2013 Summer Assessing gene flow and its general application to genetic variation in declining populations of freshwater mussels. Internally funded from the CSU Provost's Office initiative for Engaged Learning ($6.040).

2011-2013- Great Lakes Fish and Wildlife Restoration Act FY 2010: Conservation of native freshwater mussel refuges in Great Lakes coastal zones, Funded in full. This multi-investigator collaborative grant asks for $381,000 ($21,000 in as a pass through to my laboratory).