

Charles Randklev
Research Assistant Professor
charles.randklev@ag.tamu.edu (817) 966-3235 Curriculum Vitae Additional websiteAs a research scientist for the Texas A&M Natural Resources Institute sin, Dr. Charles Randklev works on issues related to freshwater mussel conservation. His research expertise is unionid ecology with research interests in habitat requirements and biogeography for rare and common mussel species. Charles is also interested in how habitat alteration impacts mussel community composition and how these changes influence ecosystem services provided by unionids.
He joined NRI 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.
Peer-Reviewed Publications
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A conceptual framework to inform conservation status assessments of non-charismatic species
Nov 2024
de Moulpied, M., A.H. Kiser, C.R. Robertson, R. Lopez, and C.R. Randklev. 2024. A conceptual framework to inform conservation status assessments of non-charismatic species. Journal of Environmental Management 372:123423.
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Evaluation of survivorship and annulus validation in calcein-stained freshwater unionid mussels
Sep 2024
Eismont, A.L., M. deMoulpied, C.R. Robertson, R.R. Lopez, and C.R. Randklev. 2024. Evaluation of survivorship and annulus validation in calcein-stained freshwater unionid mussels. Scientific Reports 14:20659.
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Growth and longevity of two imperilled mussel species from the Edwards Plateau of Central Texas and its implications for freshwater mussel conservation and management
Aug 2024
de Moulpied, M., C.R. Robertson, R. Smith, M. Johnson, A.M. Wootten, E. Martin, R. Lopez, and C.R. Randklev. 2024. Growth and longevity of two imperilled mussel species from the Edwards Plateau of Central Texas and its implications for freshwater mussel conservation and management. Aquatic Conservation: Marine and Freshwater Ecosystems 34:e4224.
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Distribution of nonindigenous Basket clams (Corbicula spp.) in Mexico
Jul 2024
Tiemann, J.S., K.S. Cummings, E. Barba, and C. Randklev. 2024. Distribution of nonindigenous Basket clams (Corbicula spp.) in Mexico. Revista Mexicana de Biodiversidad 95(e955284).
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Clumped isotopes reveal relationship between mussel growth and river discharge
Apr 2024
Brewer, M.A., E.L. Grossman, and C.R. Randklev. 2024. Clumped isotopes reveal relationship between mussel growth and river discharge. Scientific Reports 14(7653).
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Creating a systematic prioritization of stream reaches for conservation of aquatic species
Feb 2024
Kiser, A.H., C.A. Craig, T.H. Bonner, B. Littrell, C.H. Smith, C.R. Robertson, H. Wang, W.E. Grant, M.S. Johnson, R. Lopez, and C.R. Randklev. 2024. Creating a systematic prioritization of stream reaches for conservation of aquatic species. Ecosphere 15:e4772.
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Thermal tolerance exceedances of an endangered unionid mussel in the Rio Grande Basin, with implications for river management
Nov 2023
Rangaswami, X.L., A.H. Kiser, M. Ramey, J.A. Stoeckel, D.J. Berg, R.R. Lopez, C.R. Randklev. 2023. Thermal tolerance exceedances of an endangered unionid mussel in the Rio Grande Basin, with implications for river management. Aquatic Conservation: Marine and Freshwater Ecosystems 33, 1431-1444.
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Biogeography of freshwater mussels (Bivalvia: Unionida) in Texas and implications on conservation biology
May 2022
de Moulpied, M., C.H. Smith, C.R. Robertson, N.A. Johnson, R. Lopez, and C.R. Randklev. 2022. Biogeography of freshwater mussels (Bivalvia: Unionida) in Texas and implications on conservation biology. Diversity and Distributions, 00, 1-17.
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Using a multi-model ensemble approach to determine biodiversity hotspots with limited occurrence data in understudied areas: An example using freshwater mussels in Mexico
Apr 2022
Kiser, A.H., K.S. Cummings, J.S. Tiemann, C.H. Smith, N.A. Johnson, R.R. Lopez, and C.R. Randklev. 2022. Using a multi-model ensemble approach to determine biodiversity hotspots with limited occurrence data in understudied areas: An example using freshwater mussels in Mexico. Ecology and Evolution, 12, e8909.
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The effect of flow and mussel species traits on the occurrence of rare mussels: A case study within selected rivers of the West Gulf Coastal Plain
Jan 2022
Kiser, A.H., J.M. Khan, C.R. Robertson, R. Lopez, and C.R. Randklev. 2022. The effect of flow and mussel species traits on the occurrence of rare mussels: A case study within selected rivers of the West Gulf Coastal Plain. Aquatic Conservation: Marine and Freshwater Ecosystems, 32, 98-111.
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Using upper thermal limits of Lampsilis bracteata (Texas fatmucket) from the North Llano and San Saba rivers, Texas to inform water management practices in the Edwards Plateau
Jan 2022
, J.M. , C.R. 2022. Using upper thermal limits of Lampsilis bracteata (Texas fatmucket) from the North Llano and San Saba rivers, Texas to inform water management practices in the Edwards Plateau. Aquatic Conservation: Marine and Freshwater Ecosystems, 32, 85–97.
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Establishing conservation units to promote recovery of two threatened freshwater mussel species (Bivalvia: Unionida: Potamilus)
Jul 2021
Smith, C.H., N.A. Johnson, C.R. Robertson, R.D. Doyle, C.R. Randklev. 2021. Establishing conservation units to promote recovery of two threatened freshwater mussel species (Bivalvia: Unionida: Potamilus). Ecology and Evolution, 11, 11102-11122.
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Gulf Coast vicariance shapes phylogeographic history of a North American freshwater mussel species complex
Mar 2021
Keogh, S.M., N.A. Johnson, J.D. Williams, C.R. Randklev, A.M. Simons. 2021. Gulf Coast vicariance shapes phylogeographic history of a North American freshwater mussel species complex. Journal of Biogeography, 48, 1138-1152.
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A cautionary tale about translocating mussels and implications for conservation: A case study from two river basins in central Texas
Jan 2021
Hart, M.A., M. Fisher, and C.R. Randklev. 2021. A cautionary tale about translocating mussels and implications for conservation: A case study from two river basins in central Texas. Aquatic Conservation: Marine and Freshwater Ecosystems, 31, 916-929.
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Linking life history strategies and historical baseline information shows effects of altered flow regimes and impoundments on freshwater mussel assemblages
Jul 2020
Khan, J., J. Dudding, M. Hart, E. Tsakiris, and C.R. Randklev. 2020. Linking life history strategies and historical baseline information shows effects of altered flow regimes and impoundments on freshwater mussel assemblages. Freshwater Biology. -
The utility of zooarchaeological data to guide listing efforts for an imperiled mussel species (Bivalvia: Unionidae: Pleurobema riddellii)
Jun 2020
Randklev, C.R., S. Wolverton, N.A. Johnson, C.H Smith, T.P. DuBose, C.R. Robertson, J. Conley. 2020. The utility of zooarchaeological data to guide listing efforts for an imperiled mussel species (Bivalvia: Unionidae: Pleurobema riddellii). Conservation Science and Practice 2: p.e253.
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Reproductive life history of 2 imperiled and 1 widely- distributed freshwater mussel species from the southwestern United States
Jan 2020
Dudding, J.F., M. Hart, J.M. Khan, C.R. Robertson, R.R. Lopez, C.R. Randklev. 2020. Reproductive life history of 2 imperiled and 1 widely- distributed freshwater mussel species from the southwestern United States. Freshwater Science. 10.1086/707774.