Journal Article

Species delimitation in endangered groundwater salamanders: Implications for aquifer management and biodiversity conservation

Devitt, T.J., Wright, A.M., Cannatella, D. and Hillis, D.

Record Number:
4208
Year:
2019
Journal:
Proceedings of the National Academy of Sciences
Pages:
yy
Volume:
xx
Abstract:
Groundwater-dependent species are among the least-known components of global biodiversity, as well as some of the most vulnerable because of rapid groundwater depletion at regional and global scales. The karstic Edwards–Trinity aquifer system of west-central Texas is one of the most species-rich groundwater systems in the world, represented by dozens of endemic groundwater-obligate species with narrow, naturally fragmented distributions. Here, we examine how geomorphological and hydrogeological processes have driven population divergence and speciation in a radiation of salamanders ( Eurycea ) endemic to the Edwards–Trinity system using phylogenetic and population genetic analysis of genome-wide DNA sequence data. Results revealed complex patterns of isolation and reconnection driven by surface and subsurface hydrology, resulting in both adaptive and nonadaptive population divergence and speciation. Our results uncover cryptic species diversity and refine the borders of several threatened and endangered species. The US Endangered Species Act has been used to bring state regulation to unrestricted groundwater withdrawals in the Edwards (Balcones Fault Zone) Aquifer, where listed species are found. However, the Trinity and Edwards–Trinity (Plateau) aquifers harbor additional species with similarly small ranges that currently receive no protection from regulatory programs designed to prevent groundwater depletion. Based on regional climate models that predict increased air temperature, together with hydrologic models that project decreased springflow, we conclude that Edwards–Trinity salamanders and other codistributed groundwater-dependent organisms are highly vulnerable to extinction within the next century.
Times Cited:
2
Related Records:
Eigenmann, C. H. (1919)
Trogloglanis pattersoni, a new blind fish from San Antonio, Texas
Hubbs, C. L. and Bailey, R. M. (1947)
Blind catfishes from artesian waters of Texas
Taylor, W. R. (1955)
A revision of the genus Noturus Rafinesque with a contribution to the classification of the North American catfishes
Taylor, W. R. (1955)
A revision of the genus Noturus Rafinesque with a contribution to the classification of the North American catfishes
Suttkus, R. D. (1961)
Additional information about blind catfishes from Texas
Taylor, W. R. (1969)
A revision of the catfish genus Noturus Rafinesque, with an analysis of higher groups in the Ictaluridae
Taylor, W. R. (1969)
A revision of the catfish genus Noturus Rafinesque, with an analysis of higher groups in the Ictaluridae
Reddell, J. R. and Mitchell, R. W. (1969)
A checklist and annotated bibliography of the subterranean aquatic fauna of Texas
Lundberg, J.G. (1970)
The evolutionary history of north American catfishes, family Ictaluridae
Lundelius, E. L. and Slaughter, B. H. (1971)
Natural history of Texas caves
Hubbs, C. (1971)
Fishes of Texas caves
Species, Texas Organisation for Endangered (1975)
T.O.E.S. watchlist of endangered, threatened and peripheral vertebrates of Texas
Longley, G. and Karnei, H. (1979)
Status of Trogloglanis pattersoni Eigenmann, the toothless blindcat
Longley, G. and Karnei, H. (1979)
Status of Satan eurystomus Hubbs and Bailey, the widemouth blindcat
Longley, G. and Karnei, H. (1979)
Status of Trogloglanis pattersoni Eigenmann, the toothless blindcat
Longley, G. and Karnei, H. (1979)
Status of Satan eurystomus Hubbs and Bailey, the widemouth blindcat
Karnei, H. (1979)
Status of the troglobitic blind catfishes, Trogloglanis pattersoni and Satan eurystomus, in Bexar County, Texas
Cooper, J.E. and Longley, G. (1980)
Trogloglanis pattersoni Eigenmann Toothless blindcat
Cooper, J.E. and Longley, G. (1980)
Satan eurystmus Hubbs and Bailey Widemouth blindcat
LeGrande, W. H. (1981)
Chromosomal evolution in North American catfishes (Siluriformes, Ictaluridae) with particular emphasis on the Madtoms, Noturus
Longley, G. (1981)
The Edwards aquifer: Earths most diverse groundwater ecosystem ?
Lundberg, J. G. (1982)
The comparative anatomy of the toothless blindcat, Trogloglanis pattersoni Eigenmann, with a phylogenetic analysis of the ictalurid fishes
Lundberg, J. G. (1982)
The comparative anatomy of the toothless blindcat, Trogloglanis pattersoni Eigenmann, with a phylogenetic analysis of the ictalurid fishes
Winograd, I. J. and Roberston, F. N. (1982)
Deep oxygenated groundwater: anomaly or common occurence ?
Edwards, R. J., Beaty, H. E., Longley, G., Riskind, D. H., Tupa, D. D. and Whiteside, B. G. (1984)
The San Marcos recovery plan
Woodruff, C. M. and Abbott, P. L. (1986)
Stream piracy and the evolution of the Edwards Aquifer along the Balcones escarpment, central Texas
Amemiya, C.T., Kelsch, S.W., Hendricks, F.S. and Gold, J.R. (1986)
The karyoptype of the Mexican blindcat, Prietalla phreatophila Carranza (Ictaluridae)
Longley, G. (1986)
The biota of the Edwards Aquifer and the implications for zoogeography
Moraver, F. and Huffman, D. G. (1988)
Rhabdochona longleyi sp. n. (Nematoda, Rhabdochonidae) from the blind catfishes, Trogloglanis pattersoni and Satan eurystomus (Ictaluridae) from the subterranean waters of Texas
Moraver, F. and Huffman, D. G. (1988)
Rhabdochona longleyi sp. n. (Nematoda, Rhabdochonidae) from the blind catfishes, Trogloglanis pattersoni and Satan eurystomus (Ictaluridae) from the subterranean waters of Texas
Species, Texas Organisation for Endangered (1988)
Endangeredthreatened and watchlist of vertebrates of Texas
Williams, J. E., Johnson, J. E., Hendrickson, D. A., Conteras-Balderas, S., Williams, J. D., Navarro-Mondoza, M., McAllister, D. E. and Deacon, J. E. (1989)
Fishes of North America endangered, threatened or of special concern 1989
Kroschewsky, J. R. (1990)
The Edwards Aquifer Research and Data Centre: Objectives and accomplishments
Kuehn, K. A. and Koehn, R. D. (1991)
Fungal populations isolated from Ezells Cave in south Texas
Langecker, T. G. and Longley, G. (1992)
Blind catfish (Trogloglanis pattersoni and Satan eurystomus) from dep artesian waters. A study on convergent adaptations to cave and deep sea biota
Langecker, T. G. and Longley, G. (1992)
Blind catfish (Trogloglanis pattersoni and Satan eurystomas) from deep artesian waters: A study on convergant adaptation to cave and deep sea biotas
Kuehn, K. A., O'Neil, R. M. and Koehn, R. D. (1992)
Viable photosynthetic microalgal isolates from aphotic environments of the Edwards Aquifer (central Texas)
Langecker, T. G. and Longley, G. (1992)
Blind catfish (Trogloglanis pattersoni and Satan eurystomus) from dep artesian waters. A study on convergent adaptations to cave and deep sea biota
Langecker, T. G. and Longley, G. (1992)
Blind catfish (Trogloglanis pattersoni and Satan eurystomas) from deep artesian waters: A study on convergant adaptation to cave and deep sea biotas
Lundberg, J. G. (1992)
The phylogeny of ictalurid catfishes: a synthesis of recent work
Langecker, T. G. and Longley, G. (1993)
Morphological adaptations of the Texas blind catfishes Trogloglanis pattersoni and Satan eurystomus (iluriformes, Ictaluridae) to their underground environment
Bowles, D.E. and Arsuffi, T.L. (1993)
Karst aquatic ecosystems of the Edwards Plateau region of central Texas, USA: A consideration of their importance, threats to their existence, and efforts for their conservation
Langecker, T. G. and Longley, G. (1993)
Morphological adaptations of the Texas blind catfishes Trogloglanis pattersoni and Satan eurystomus (iluriformes, Ictaluridae) to their underground environment
Krejca, J, Hendrickson, DA and Taylor, SJ (2000)
Using stygobites to follow groundwater in Texas and Mexico
Hendrickson, DA and Krejca, J (2000)
Subterranean freshwater diversity in northeastern Mexico and Tewas
Krejca, J, Hendrickson, DA and Taylor, SJ (2000)
Using stygobites to follow groundwater in Texas and Mexico
Northup, D.E. and Lavoie, K.H. (2001)
Geomicrobiology of caves: A review
Wilcox, TP, Garcia de Leon, FJ, Hendrickson, DA and Hillis, DM (2004)
Convergence among cave catfishes: long-branch attraction and a Bayesian relative rates test
Wilcox, TP, Garcia de Leon, FJ, Hendrickson, DA and Hillis, DM (2004)
Convergence among cave catfishes: long-branch attraction and a Bayesian relative rates test
Boghici, R. (2004)
Hydrogeology of Edwards–Trinity Aquifer of Texas and Coahuila in the Border Region
Boghici, R. (2004)
Hydrogeology of Edwards–Trinity Aquifer of Texas and Coahuila in the Border Region
Sullivan, JP, Lundberg, J. G. and Hardman, M (2006)
A phylogenetic analysis of the major groups of catfishes (Teleostei: Siluriformes) using rag1 and rag2 nuclear gene sequences
Sullivan, JP, Lundberg, J. G. and Hardman, M (2006)
A phylogenetic analysis of the major groups of catfishes (Teleostei: Siluriformes) using rag1 and rag2 nuclear gene sequences
Egge, JJD (2010)
Systematics if ictalurid catfishes: a review of the evidence
Egge, JJD (2010)
Systematics if ictalurid catfishes: a review of the evidence
Zara Environmental LLC (2010)
Final Report for deep aquifer study of the Edwards Aquifer
Zara Environmental LLC (2010)
Final Report for deep aquifer study of the Edwards Aquifer
Dahdul, W.M., Lundberg, J.G., Midford, P.E., Balhoff, J.P., Lapp, H., Vision, T.J., Haendel, M.A., Westerfield, M. and Mabee, P.M. (2010)
The Teleost anatomy ontology: Anatomocal representation for the genomics age
Dahdul, W.M., Lundberg, J.G., Midford, P.E., Balhoff, J.P., Lapp, H., Vision, T.J., Haendel, M.A., Westerfield, M. and Mabee, P.M. (2010)
The Teleost anatomy ontology: Anatomocal representation for the genomics age
Zara Environmental LLC (2014)
Fauna of wells near the saline waterline of the Edwards Aquifer, Texas
Zara Environmental LLC (2014)
Fauna of wells near the saline waterline of the Edwards Aquifer, Texas
Arce, M, Lundberg, J. G. and O'Leary, MA (2016)
Phylogeny of the North American catfish Family Ictaluridae (Teleostei: Siluriformes) combining morphology, genes and fossils
Arce, M, Lundberg, J. G. and O'Leary, MA (2016)
Phylogeny of the North American catfish Family Ictaluridae (Teleostei: Siluriformes) combining morphology, genes and fossils
Lundberg, J.G., Hendrickson, D.A., Luckenbill, K.R. and Arce M (2017)
Satan's skeleton revealed: a tomographic and comparative osteology of Satan eurystomus, the subterranean Widemouth Blindcat (Siluriformes, Ictaluridae)
Airhart, M.G. (2017)
Scientists on the trail of central Texas' elusive Satan fish
Lundberg, J.G., Hendrickson, D.A., Luckenbill, K.R. and Arce M (2017)
Satan's skeleton revealed: a tomographic and comparative osteology of Satan eurystomus, the subterranean Widemouth Blindcat (Siluriformes, Ictaluridae)
Nissen, B.D., Devitt, T.J., Bendik, N.F., Gluesenkamp, A.G., Gibson, R. (2018)
New occurrence records for stygobiontic invertebrates from the Edwards and Trinity aquifers in west-central Texas, USA
Nissen, B.D., Devitt, T.J., Bendik, N.F., Gluesenkamp, A.G., Gibson, R. (2018)
New occurrence records for stygobiontic invertebrates from the Edwards and Trinity aquifers in west-central Texas, USA
Devitt, T.J., Wright, A.M., Cannatella, D. and Hillis, D. (2019)
Species delimitation in endangered groundwater salamanders: Implications for aquifer management and biodiversity conservation
Devitt, T.J., Wright, A.M., Cannatella, D. and Hillis, D. (2019)
Species delimitation in endangered groundwater salamanders: Implications for aquifer management and biodiversity conservation
Nair, P. (2019)
Ecophysiology and food web dynamics of spring ecotone communities in the Edwards Aquifer, USA
Nair, P. (2019)
Ecophysiology and food web dynamics of spring ecotone communities in the Edwards Aquifer, USA