Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 10365
Tadpoles balance foraging and predator avoidance: Effects of predation, pond drying, and hunger Tadpoles balance foraging and predator avoidance: Effects of predation, pond drying, and hunger
Organisms are predicted to make trade-offs when foraging and predator avoidance behaviors present conflicting demands. Balancing conflicting demands is important to larval amphibians because adult fitness can be strongly influenced by size at metamorphosis and duration of the larval period. Larvae in temporary ponds must maximize growth within a short time period to achieve metamorphosis...
Authors
Christine M. Bridges
Neosho Madtom Spawning Neosho Madtom Spawning
No abstract available at this time
Authors
Janice L. Albers, Mark L. Wildhaber
Water resources data Texas, water year 2001, volume 5. Guadalupe River basin, Nueces River basin, Rio Grande basin, and intervening coastal basins Water resources data Texas, water year 2001, volume 5. Guadalupe River basin, Nueces River basin, Rio Grande basin, and intervening coastal basins
Water-resources data for the 2001 water year for Texas are presented in six volumes, and consist of records of stage, discharge, and water quality of streams and canals; stage, contents, and water-quality of lakes and reservoirs; and water levels and water quality of ground-water wells. Volume 5 contains records for water discharge at 77 gaging stations; stage only at 4 gaging stations...
Authors
Susan C. Gandara
Water Resources Data, Florida, Water Year 2001, Volume 4. Northwest Florida Water Resources Data, Florida, Water Year 2001, Volume 4. Northwest Florida
This report series for the 2001 water year for the state of Florida consists of records for continuous or daily discharge for 387 streams, periodic discharge for 14 streams, continuous or daily stage for 147 streams, periodic stage for 2 streams, peak stage and discharge for 8 streams, continuous or daily elevations for 14 lakes, periodic elevations for 47 lakes, continuous ground-water...
Authors
Water Resources Division U.S. Geological Survey
The National Flood-Frequency Program -- Methods for Estimating Flood Magnitude and Frequency in Rural and Urban Areas in North Carolina, 2001 The National Flood-Frequency Program -- Methods for Estimating Flood Magnitude and Frequency in Rural and Urban Areas in North Carolina, 2001
No abstract available.
Authors
Mason, Luis A. Fuste, Jeffrey N. King, Wilbert O. Thomas
Trace elements and nutrition interactions in fish and wildlife Trace elements and nutrition interactions in fish and wildlife
No abstract available.
Authors
S. J. Hamilton, D. J. Hoffman
Contaminants without borders: A regional assessment of the Colorado River Delta ecosystem Contaminants without borders: A regional assessment of the Colorado River Delta ecosystem
The Colorado River Delta Region (CRDR) is comprised of large agricultural areas in the U.S. (Imperial and Yuma districts) and Mexico (Mexicali and San Luis districts), the Salton Sea, and the Lower Colorado River from southern Arizona to the Gulf of California (Valdés-Casillas et al., 1998). Before agricultural development, the lower delta comprised large riparian and wetland areas...
Authors
Miguel A. Mora, Jaqueline Garcia, Maria de la Paz Carpio-Obeso, Kirke A. King
Modeling ecosystem and population dynamics on the South Florida hydroscape Modeling ecosystem and population dynamics on the South Florida hydroscape
Abstract not supplied at this time
Authors
D.L. DeAngelis, S. Bellmund, W.M. Mooij, M.P. Nott, E.J. Comiskey, L.J. Gross, W.M. Wolff
Ontogenetic improvement of visual function in the medaka Oryzias latipes based on an optomotor testing system for larval and adult fish Ontogenetic improvement of visual function in the medaka Oryzias latipes based on an optomotor testing system for larval and adult fish
We developed a system for evaluation of visual function in larval and adult fish. Both optomotor (swimming) and optokinetic (eye movement) responses were monitored and recorded using a system of rotating stripes. The system allowed manipulation of factors such as width of the stripes used, rotation speed of the striped drum, and light illuminance levels within both the scotopic and...
Authors
Paulo S. M. Carvalho, Douglas B. Noltie, D. E. Tillitt
Weak trophic interactions among birds, insects and white oak saplings (Quercus alba) Weak trophic interactions among birds, insects and white oak saplings (Quercus alba)
We examined the interactions among insectivorous birds, arthropods and white oak saplings (Quercus alba L.) in a temperate deciduous forest under 'open' and 'closed' canopy environments. For 2 y, we compared arthropod densities, leaf damage and sapling growth. Saplings from each canopy environment were assigned to one of four treatments: (1) reference, (2) bird exclosure, (3) insecticide...
Authors
J.S. Lichtenberg, D.A. Lichtenberg
Pharmaceuticals, hormones, and other organic wastewater contaminants in U.S. streams, 1999-2000: A national reconnaissance Pharmaceuticals, hormones, and other organic wastewater contaminants in U.S. streams, 1999-2000: A national reconnaissance
To provide the first nationwide reconnaissance of the occurrence of pharmaceuticals, hormones, and other organic wastewater contaminants (OWCs) in water resources, the U.S. Geological Survey used five newly developed analytical methods to measure concentrations of 95 OWCs in water samples from a network of 139 streams across 30 states during 1999 and 2000. The selection of sampling sites...
Authors
D.W. Kolpin, E. T. Furlong, M. T. Meyer, E.M. Thurman, S.D. Zaugg, L. B. Barber, H. T. Buxton
Fouth World Congress of Herpetology, 3-9 December 2001, Bentota, Sri Lanka Fouth World Congress of Herpetology, 3-9 December 2001, Bentota, Sri Lanka
No abstract available.
Authors
C. Kenneth Dodd, B. Bartholomew