Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 10351
Water resources data, Florida, water year 2005. Volume 3B: Southwest Florida ground water Water resources data, Florida, water year 2005. Volume 3B: Southwest Florida ground water
Water resources data for the 2005 water year in Florida consist of continuous or daily discharges for 429 streams, periodic discharge for 9 streams, continuous or daily stage for 218 streams, periodic stage for 5 streams, peak stage for 28 streams and peak discharge for 28 streams, continuous or daily elevations for 15 lakes, periodic elevations for 23 lakes; continuous ground-water...
Authors
Richard L. Kane
Manatee occurrence in the northern Gulf of Mexico, west of Florida Manatee occurrence in the northern Gulf of Mexico, west of Florida
Reports of West Indian manatees (Trichechus manatus) in the US Gulf of Mexico west of Florida have increased during the last decade. We reviewed all available manatee sighting, capture, and carcass records (n = 377) from Alabama, Louisiana, Mississippi, and Texas since the early 1900s; only 40 of these were previously published. Manatees were reported most often in estuarine habitats...
Authors
D. Fertl, A. J. Schiro, G. T. Regan, Cathy A. Beck, N. Adimey, L. Price-May, A. Amos, Graham A.J. Worthy, R. Crossland
Inducible defenses in food webs: Chapter 3.4 Inducible defenses in food webs: Chapter 3.4
This chapter reviews the predicted effects of induced defenses on trophic structure and two aspects of stability, “local” stability and persistence, as well as presenting novel results on a third, resilience. Food webs are structures of populations in a given location organized according to their predator–prey interactions. Interaction strengths and, therefore, prey defenses are...
Authors
Matthijs Vos, Bob W. Kooi, Donald L. DeAngelis, Wolf M. Mooij
Effects of lowhead dams on the ephemeropterans, plecopterans, and trichopterans group in a north American River Effects of lowhead dams on the ephemeropterans, plecopterans, and trichopterans group in a north American River
We assessed the effects of lowhead dams on the EPT group (ephemeropterans, plecopterans, and trichopterans) by sampling habitat and macroinvertebiates monthly from November 2000 to October 2001 at eight gravel bars centered around two lowhead dams on the Neosho River, Lyon County, Kansas. Sites included a reference and treatment site upstream and downstream from each dam. Percent EFT was...
Authors
Jeremy S. Tiemann, David P. Gillette, Mark L. Wildhaber, David R. Edds
Seed storage conditions change the germination pattern of clonal growth plants in Mediterranean salt marshes Seed storage conditions change the germination pattern of clonal growth plants in Mediterranean salt marshes
The effect of salinity level and extended exposure to different salinity and flooding conditions on germination patterns of three salt‐marsh clonal growth plants (Juncus subulatus, Scirpus litoralis, and S. maritimus) was studied. Seed exposure to extended flooding and saline conditions significantly affected the outcome of the germination process in a different, though predictable, way...
Authors
J. L. Espinar, L. V. Garcia, L. Clemente
Simulation of streamflow and estimation of recharge to the Edwards aquifer in the Hondo Creek, Verde Creek, and San Geronimo Creek watersheds, south-central Texas, 1951-2003 Simulation of streamflow and estimation of recharge to the Edwards aquifer in the Hondo Creek, Verde Creek, and San Geronimo Creek watersheds, south-central Texas, 1951-2003
The U.S. Geological Survey, in cooperation with the San Antonio Water System, constructed three watershed models using the Hydrological Simulation Program—FORTRAN (HSPF) to simulate streamflow and estimate recharge to the Edwards aquifer in the Hondo Creek, Verde Creek, and San Geronimo Creek watersheds in south-central Texas. The three models were calibrated and tested with available...
Authors
Darwin J. Ockerman
Thiamine content and thiaminase activity of ten freshwater stocks and one marine stock of alewives Thiamine content and thiaminase activity of ten freshwater stocks and one marine stock of alewives
Alewives Alosa pseudoharengus contain thiaminase activity that has been implicated in the development of a thiamine deficiency and associated effects in salmonines of the Great Lakes basin. Little is known about the factors that regulate thiaminase activity in alewives. We sampled alewives of uniform size (60-120 mm) during the summer of 1998 from the Gulf of St. Lawrence, seven of New...
Authors
J.D. Fitzsimons, B. Williston, J.L. Zajicek, D. E. Tillitt, S.B. Brown, L. R. Brown, D. C. Honeyfield, D.M. Warner, L. G. Rudstam, W. Pearsall
Assessing contaminant sensitivity of endangered and threatened aquatic species: Part II. chronic toxicity of copper and pentachlorophenol to two endangered species and two surrogate species Assessing contaminant sensitivity of endangered and threatened aquatic species: Part II. chronic toxicity of copper and pentachlorophenol to two endangered species and two surrogate species
Early life-stage toxicity tests with copper and pentachlorophenol (PCP) were conducted with two species listed under the United States Endangered Species Act (the endangered fountain darter, Etheostoma fonticola, and the threatened spotfin chub, Cyprinella monacha) and two commonly tested species (fathead minnow, Pimephales promelas, and rainbow trout, Oncorhynchus mykiss). Results were...
Authors
J.M. Besser, N. Wang, F.J. Dwyer, F.L. Mayer, C.G. Ingersoll
Dilemma of the common species: Florida Box Turtles Dilemma of the common species: Florida Box Turtles
Abstract not supplied at this time
Authors
C.K. Dodd
Transport of chemical and microbial compounds from known wastewater discharges: Potential for use as indicators of human fecal contamination Transport of chemical and microbial compounds from known wastewater discharges: Potential for use as indicators of human fecal contamination
The quality of drinking and recreational water is currently (2005) determined using indicator bacteria. However, the culture tests used to analyze for these bacteria require a long time to complete and do not discriminate between human and animal fecal material sources. One complementary approach is to use chemicals found in human wastewater, which would have the advantages of (1)...
Authors
S.T. Glassmeyer, E. T. Furlong, D.W. Kolpin, J.D. Cahill, S.D. Zaugg, S.L. Werner, M. T. Meyer, D.D. Kryak
Roads and Florida's herpetofauna: a review and mitigation case study Roads and Florida's herpetofauna: a review and mitigation case study
Abstract not supplied at this time
Authors
L. L. Smith, Kimberly G. Smith, W.J. Barichivich, C.K. Dodd, K. Sorensen