Charles Randklev

Research Scientist

Charles Randklev

As an assistant research scientist for the institutes, Dr. Charles Randklev serves as the senior expert on issues related to freshwater mussel (i.e., unionid mussels) conservation.  His research activities focus on status assessments of native mussel populations and understanding how habitat conditions contribute to mussel persistence. Randklev provides seven years of experience studying freshwater mussels in east and central Texas river systems. He also provides several years of applied research experience in biological sampling of macroinvertebrates, surveying and relocating state threatened species at bridge construction sites, and evaluating how downstream benthic communities respond to river impoundment. 

Randklev joined the Texas A&M Institute of Renewable Natural Resources in 2011.

He has a bachelor’s in biology from the University of Texas at Arlington and a doctorate from the University of North Texas.

Professional Experience

Research Associate. Texas A&M Institute of Renewable Natural Resources, 2011-2012.
Graduate Research Assistant. University of North Texas, 2006-2010.
Undergraduate Research Assistant. University of Texas at Arlington, 2004-2005.

Current Research

Examining the efficacy of relocating mussels impacted by bridge construction projects
Assessing the distribution of freshwater mussels in the Sabine, Brazos and San Saba Rivers
Developing predictive models for the occurrence of state threatened species in Texas

Student Advisory Committees

Eric T. Tsakiris, Texas A&M University (PhD)

Teaching Experience

Environmental Science and Quantitative Techniques, University of North Texas, 2007 - 2009

Publications

Peer-Reviewed

Sowards, B., E.T. Tsakiris, M. Libson, and C.R. Randklev. 2013. Recent collection of a false spike (Quadrula mitchelli) in the San Saba River, Texas, with comments on habitat use.  Walkerana 16:63-67.

Randklev, C.R., M.S. Johnson, E.T. Tsakiris, J. Groce, and N. Wilkins.  2013.  Status of the freshwater mussel (Unionidae) communities of the mainstem of the Leon River, Texas.  Aquatic Conservation: Marine and Freshwater Ecosystems. DOI: 10.1002/aqc.2340.

Randklev, C.R., J. Skorupski, B.J. Lundeen, and E.T. Tsakiris. 2013. New distributional records for four rare freshwater mussel species (Family: Unionidae) in southwestern LouisianaThe Southwestern Naturalist  58: 247-249.

Randklev, C.R., E.T. Tsakiris, M.S. Johnson, J. Skorupski, L.E. Burlakova , J. Groce, and N. Wilkins. 2013. Is False Spike, Quadrula mitchelli (Bivalvia: Unionidae), extinct? First account of a very-recently deceased individual in over thirty years. The Southwestern Naturalist 58: 268-273.

Johnson, M.S., P.D. Caccavale, C.R. Randklev, and J.R. Gibson. 2012. New and confirmed fish hosts for the threatened freshwater mussel Lampsilis bracteata (Gould, 1855), the Texas Fatmucket (Bivalvia: Unionidae). The Nautilus 126: 148-149.

Randklev, C.R., M.S. Johnson, E.T. Tsakiris, S. Rogers-Oetker, K.J. Roe, S. McMurray, C. Robertson, J. Groce, and N. Wilkins. 2012. False Spike, Quadrula mitchelli (Bivalvia: Unionidae) is not extinct: first account of a live population in over 30 years. American Malacological Bulletin 30: 327-328.

Peacock, E., C.R. Randklev, S. Wolverton, R.A. Palmer, and S. Zaleski. 2012. Innocence before Guilt: The ‘Cultural Filter’ and the Applied Potential of Zooarchaeological Data. Ecological Applications 22:1446–1459.

Randklev, C.R., and Lundeen B. 2012. Prehistoric Biogeography and Conservation Status of Threatened Freshwater Mussels (Mollusca: Unionidae) in the Upper Trinity River Drainage, Texas. In Conservation Biology and Applied Zooarchaeology, edited by S. Wolverton and R.L. Lyman, pp. 68-91. The University Of Arizona Press, Tucson.

Wolverton, S., C.R. Randklev, and A. Barker. 2011. Ethnobiology as a Bridge between Science and Ethics: An Applied Paleozoological Perspective. Pages 115-132 in Ethnobiology.E. Anderson, editor. Wiley-Blackwell.

Randklev, C.R., S. Wolverton, B.J. Lundeen, and J.H. Kennedy. 2010. A paleozoological perspective on unionid (Mollusca: Unionidae) zoogeography in the upper Trinity River basin. Ecological Applications 20:2359-2368.

Randklev, C.R., B.J. Lundeen, R.G. Howells, and J.H. Kennedy. 2010. Habitat preference and first account of a living population of Texas Fawnsfoot, Truncilla macrodon (Bivalvia: Unionidae) [I. Lea, 1859] in the Brazos River. The Southwestern Naturalist 55:297-298.

Wolverton, S., C.R. Randklev, and J.H. Kennedy. 2010. A conceptual model for freshwater shellfish (family: Unionidae) remain preservation in zooarchaeological assemblages. Journal of Archaeological Science 37:164-173.

Randklev, C.R., S. Wolverton, and J.H. Kennedy. 2009. A Biometric Technique for Assessing Prehistoric Freshwater Mussel Population Dynamics (Family: Unionidae) in North Texas. Journal of Archaeological Science 36:205-213.

Non-refereed Articles

Randklev, C.R., E.T. Tsakiris, R.G. Howells, J. Groce, M.S. Johnson, J. Bergmann, C. Robertson, A. Blair, B. Littrell, and N. Johnson. 2013. Distribution of extant populations of Quadrula mitchelli (false spike). Ellipsaria 15: 18-21.

Howells, R.G., C.R. Randklev, N.B. Ford. 2012. Taxonomic Status of Pigtoe Unionids in Texas. Ellipsaria 14:11-15.

Randklev, C.R., M.S. Johnson, E.T. Tsakiris, S. Rogers-Oetker, K.J. Roe, S. McMurray, C. Robertson, J. Groce, and N. Wilkins. 2011. First account of a living population of False Spike, Quadrula mitchelli (Bivalvia: Unionidae), in the Guadalupe River, Texas. Ellipsaria 13:17-19.

Howells, R.G., C.R. Randklev, and M.S. Johnson. 2011. Mantle flap variation in Texas Fatmucket (Lampsilis bracteata). Ellipsaria 13:14-16.

Randklev, C.R., B.J. Lundeen, and J.H. Kennedy. 2007. A Survey of Freshwater Mussels (Family Unionidae) at Lake Nocona, Montague County, Texas. Ellipsaria 8:8.

Technical Reports

Tsakiris, E.T., and C.R. Randklev. 2013.  Relocation of freshwater mussels (Family: Unionidae) in the San Saba River in response to a drought. Final report submitted to USFWS.

Randklev, C.R., H. Wang, A. Snelgrove, K. Skow, J. Groce, E. Tsakiris, B. Sowards, W.E. Grant, and N. Wilkins.  2013.  Developing predictive models for the occurrence of rare and threatened mussel species in Texas.  Final report submitted to TxDOT.

Sowards, B., M.S. Johnson, E. Tsakiris, J. Groce,and C.R. Randklev. 2012. Relocation of freshwater mussel population in response to construction activities at FM 20 crossing of the San Marcos River. Final report submitted to TxDOT.

Sowards, B. J. Groce, and C.R. Randklev. 2012. Freshwater mussel surveys for the Austin District of the Texas Department of Transportation.  Final report submitted to TxDOT. 

Randklev, C.R., B.J. Lundeen, J. Skorupski, J.H. Kennedy, and S. Wolverton. 2011. Toledo Bend relicensing project: lower Sabine River mussel study. Final report submitted to the Sabine River Authority.

Randklev, C.R., B.J. Lundeen, and J.H. Kennedy. 2010. Summary of unpublished records for candidate mussel species from four museums in north central Texas. Report submitted to Save our Springs Alliance.

Randklev, C.R. 2010. Zooarchaeological analysis of the prehistoric mussel fauna from selected rock-shelters near Belton Lake: Belton County, Texas. Report submitted to AMEC Earth & Environmental, Inc., Bothell, WA.

Randklev, C.R., B.J. Lundeen, J. Skorupski, J.H. Kennedy, and S. Wolverton. 2010. Toledo Bend relicensing project: lower Sabine River mussel study. Interim report submitted to the Sabine River Authority.

Randklev, C.R., and S. Wolverton. 2010. Zooarchaeological analysis of unionid remains: 41COL172 fauna: Collin County, Texas. Report submitted to Geo-Marine, Inc., Plano, TX.

Randklev, C.R., J.H. Kennedy, and B.J. Lundeen. 2009. Distributional survey and habitat utilization of unionids in the lower Sabine and Brazos River drainages. Report submitted to the Texas Water Development Board.

Randklev, C.R., and S. Wolverton. 2009. Zooarchaeological analysis of unionid remains: 41DL203 fauna: Kaufman County, Texas. Report submitted to Geo-Marine, Inc., Plano, TX.

Randklev, C.R., J.H. Kennedy, and T. Contador. 2008. Report on 2007 surveys of American burying beetle, Nicrophorus americanus Oliver, (Coleoptera: Silphidae) at Camp Maxey, Lamar County, Texas. Report submitted to the Texas National Guard.

Wolverton, S., and C.R. Randklev. 2007. Zooarchaeological analysis of the 41TR170 fauna: Tarrant County, Texas. Report submitted to Geo-Marine, Inc., Plano, TX.

Wolverton, S., and C.R. Randklev. 2007. Zooarchaeological analysis of the 41TR205 fauna: Tarrant County, Texas. Report Submitted to the UNT Center for Environmental Archaeology.

Posters and Presentations

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