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Rebecca Johansen


Center of Excellence for Field Biology


Ph.D. Ecology and Evolutionary Biology, Tulane University, New Orleans, LA, 2007  

M.S. Biology, Eastern Kentucky University, Richmond, KY, 2001

B.S. Biology, Eastern Kentucky University, Richmond, KY, 1998

Dr. Blanton Johansen is a Professor of Biology and PI in the Center of Excellence for Field Biology. Her research interests include the systematics, biogeography, evolution, and conservation, of freshwater fishes and crayfishes. She received her Ph.D. from Tulane University and M.S. from Eastern Kentucky University. She also serves as the Curator of Fishes in the David Snyder Museum of Zoology.

Ichthyology, Zoological Diversity, Contemporary Issues in Biology

Systematics, biogeography, evolution, and conservation, of freshwater fishes and crayfishes

(an * denotes a student co-author)

  • Grady*, J, L Bower, CM Gienger, & RE Blanton. 2022. Phylogeny and ecology influence scale shape variation in Etheostomatinae Darters. Evolutionary Ecology 36: 93-116.  https://doi.org/10.1007/s10682-021-10142-9

  • Wolf*, Z., JW Johansen, & RE Blanton. 2022. Phylogeographic relationships and conservation status of the Egg-mimic Darter, Etheostoma pseudovulatum. Southeastern Fishes Council Proceedings No. 62 https://trace.tennessee.edu/sfcproceedings/vol1/iss62/1

  • Washburn*, B.A., Cashner, M.F. & R.E. Blanton. 2020. Small fish, large river: surprisingly minimal genetic structure in a dispersal-limited, habitat specialist fish. Ecology and Evolution 10: 2253-2268.

  • Blanton, R.E., M.F. Cashner, M.R. Thomas, S.L. Brandt, M.A. Floyd. 2019. Increased habitat fragmentation leads to isolation among and low genetic diversity within populations of the imperiled Kentucky Arrow Darter (Etheostoma sagitta spilotum). Conservation Genetics https://urldefense.proofpoint.com/v2/url?u=https-3A__doi.org_10.1007_s10592-2D019-2D01188-2Dy&d=DwIGaQ&c=pFsveJJPHV1MuWVdwlSI7Q&r=R91wyyYiBDcKnTo4gWBtZ1K1B6b-duHJZ5Qht8V95_E&m=s7E2QslSUsP_WxXqkk0Fhrk-1l3EMDUtMYDyZ3YnL00&s=mLv5iJGaMaboiupsgz6IWE7uVv2NrNhUwQnzDnT5V8Q&e=

  • Bloom*, E., B. McCall*, G.A. Schuster & R.E. Blanton. 2019. Systematics and description of a new species of Faxonius Ortmann, 1905 (Decapoda: Astacidae: Cambaridae) from the Red River system of Kentucky and Tennessee, USA. Journal of Crustacean Biology (2019): 1-14.

  • Wagner*, M.D., & R.E. Blanton. 2017. Do phylogeographic breaks correspond to river drainage boundaries in the Redband Darter, Etheostoma luteovinctum? Copeia 105(4): 698-713.

  • Jarrett, A., W. Stiles, A. Janosik, R.E. Blanton, and C. Johnston. 2017. Evidence of stream capture from the Tallapoosa River drainage by a Chattahoochee River tributary based on fish distributions. Southeastern Naturalist 16(1): 117-126.

  • Wagner*, M.D., M.S. Hoger* & R.E. Blanton. 2014. Conservation status of the Redband Darter, Etheostoma luteovinctum, with notes on a burying behavior. Southeastern Naturalist 13(3): 530-546.

  • Blanton, R.E., L.D. Estes, SW. Hamilton & A.N. Barrass (Editors). 2013. Proceedings of the 14th Symposium on the Natural History of the Lower Tennessee and Cumberland River Valleys. The Center of Excellence for Field Biology, Austin Peay State University, Clarksville, TN.

  • Baker, W. H., R. E. Blanton, & C. E. Johnston.  2013. Diversity within the Redeye Bass complex (Micropterus coosae), with descriptions of four new species.  Zootaxa, 3635 (4): 379-401.

  • Blanton, R.E., L.M. Page, & S.A. Hilber*.  2013. Timing of clade divergence and discordant estimates of genetic and morphological diversity in the Slender Madtom, Noturus exilis (Ictaluridae).  Molecular Phylogenetics and Evolution 66: 679-693.

  • Blanton, R.E., L.M. Page, & B.M. Ennis*.  2011. Phylogenetic relationships of Opsopoeodus emiliae (Cyprinidae), with comment on the taxonomic implications of discordance among datasets. Copeia (1): 82-92.

  • Bart, H.L., Jr., M.D. Clements, R.E. Blanton, K.R. Piller, & D.L. Hurley. 2010. Discordant morphological and molecular evolution in buffalofishes Molecular Phylogenetics and Evolution 56: 808-820.

  • Blanton, R.E. & G.A. Schuster.  2008. Taxonomic status of Etheostoma brevispinum (Coker), the Carolina Fantail Darter. Copeia 4:844-857.

  • Blanton, R.E. & R.E. Jenkins. 2008. Three new darter species of the federally endangered Etheostoma percnurum species complex (Percidae, subgenus Catonotus) from the Tennessee and Cumberland river drainages. Zootaxa 1963:1-24.