Results 51 to 60 of about 19,532 (226)

Evolutionary Isolation and Ecological Stasis in the Endangered Comal Springs Dryopid Beetle (Stygoparnus comalensis)

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 35, Issue 12, December 2025.
ABSTRACT The Comal Springs dryopid beetle (Stygoparnus comalensis) (Coleoptera: Dryopidae) is an endangered, subterranean‐obligate, long‐toed water beetle known only from three spring complexes in the Edwards Aquifer region of Texas. Due to their small size and reliance on groundwater karst habitats, little is known of the biology of these beetles. The
William T. Coleman, Katherine L. Bell, Randy Gibson, Benjamin Schwartz, Weston Nowlin, Chris C. Nice   +5 more
wiley   +1 more source

Hydrologic Connectivity in the Edwards Aquifer between San Marcos Springs and Barton Springs during 2009 Drought Conditions

Texas Water Journal, 2011
A study of water level data collected during the 2009 drought was conducted to determine if there is a hydrologic connection between the San Antonio segment and Barton Springs segment of the Edwards Aquifer.
Larry F. Land, Brian B. Hunt, Brian A. Smith, Paula Jo Lemonds   +3 more
doaj  

Evidence for rapid divergence of sensory systems between Texas populations of the Mexican tetra (Astyanax mexicanus)

Frontiers in Ecology and Evolution, 2023
Population divergence is often quantified using phenotypic variation. However, because sensory abilities are more difficult to discern, we have little information on the plasticity and rate of sensory change between different environments.
Maya S. Enriquez, Nathan Swanson, Rosalyn L. Putland, Ti Tait, Andrew G. Gluesenkamp, Suzanne E. McGaugh, Allen F. Mensinger   +6 more
doaj   +1 more source

Influence of Glaciological Structures on the Spatial Distribution of Cryoconite Holes, Northern Victoria Land, East Antarctica

Journal of Geophysical Research: Earth Surface, Volume 130, Issue 12, December 2025.
Abstract Three blue‐ice areas in the upper reaches of Rennick Glacier, East Antarctica, are investigated using satellite remote sensing to assess the influence of meso‐ to large‐scale glaciological structures on cryoconite hole distributions. In total, 15,299 cryoconite holes and 1 600 structures were geospatially analyzed, which indicate that ...
Stephen J. A. Jennings
wiley   +1 more source

Polyhydroxyalkanoate as a slow-release carbon source for in situ bioremediation of contaminated aquifers: from laboratory investigation to pilot-scale testing in the field [PDF]

, 2016
A pilot-scale study aiming to evaluate the potential use of poly-3-hydroxy-butyrate (PHB) as an electron donor source for in situ bioremediation of chlorinated hydrocarbons in groundwater was conducted.
Alesi, Eduard, Arjmand, Firoozeh, Bartsch, Ernst, Matturro, Bruna, PETRANGELI PAPINI, Marco, Pierro, Lucia, Rossetti, Simona, Sagliaschi, Marco, Sucato, Salvatore   +8 more
core   +1 more source

Direct Numerical Simulation of Solute Transport in Bioclogged Porous Media

Water Resources Research, Volume 61, Issue 12, December 2025.
Abstract Biofilms in porous media significantly impact solute transport, beyond their role in reducing permeability through bioclogging. Experimental evidence has shown that biofilms can induce anomalous transport behaviors such as increased dispersion and pronounced tailing.
Malik A. Dawi, Michele Starnoni, Martina Siena, Giovanni Porta, Xavier Sanchez‐Vila   +4 more
wiley   +1 more source

New and revised groundwater snails (Mollusca, Caenogastropoda, Cochliopidae) from karst and associated hyporheic habitats in western Texas and northern Mexico [PDF]

Subterranean Biology
The freshwater gastropod family Cochliopidae is a diverse component of the subterranean fauna in the karst and hyporheic habitats of western Texas and northern Mexico, with 11 genera and 27 described species found in the region.
Kathryn E. Perez, Vanessa Saenz, Yamileth Guerrero, Lisa Gonzalez, Evan Guerrero, Pete Diaz, Benjamin T. Hutchins, Benjamin F. Schwartz   +7 more
doaj   +3 more sources

Prediction, time variance, and classification of hydraulic response to recharge in two karst aquifers [PDF]

Hydrology and Earth System Sciences, 2013
Many karst aquifers are rapidly filled and depleted and therefore are likely to be susceptible to changes in short-term climate variability. Here we explore methods that could be applied to model site-specific hydraulic responses, with the intent of ...
A. J. Long, B. J. Mahler
doaj   +1 more source

Nonpoint Source Pollution Control in the City of Austin [PDF]

, 1991
This report mentions the presence of rooted aquatic plants in the deltas of Waller Creek.Waller Creek Working ...
Parrish, John H., Stecher, Stephen L.
core   +1 more source

Environmental controls on organic matter production and transport across surface-subsurface and geochemical boundaries in the Edwards aquifer, Texas, USA

Acta Carsologica, 2013
Karst aquifer phreatic zones are energy limited habitats supported by organic matter (OM) flow across physical and geochemical boundaries. Photosynthetic OM enters the Edwards Aquifer of Central Texas via streams sinking along its northeastern border ...
Benjamin T. Hutchins, Benjamin F. Schwartz, Annette S. Engel   +2 more
doaj   +1 more source