Publications
Read publications and other informational products to learn more about USGS science occurring in the Mississippi Basin.
Filter Total Items: 5584
Facing the challenges of invasive alien species in North America Facing the challenges of invasive alien species in North America
Abstract not supplied at this time
Authors
I.E. Effort, C. Macias Garcia, J.D. Williams
Natural history notes: Scinella lateralis. (Ground Skink). Predation Natural history notes: Scinella lateralis. (Ground Skink). Predation
Abstract not supplied at this time
Authors
C.K. Dodd, Marian L. Griffey
Effects of simulated ground-water pumping and recharge on ground-water flow in Cape Cod, Martha's Vineyard, and Nantucket Island basins, Massachusetts Effects of simulated ground-water pumping and recharge on ground-water flow in Cape Cod, Martha's Vineyard, and Nantucket Island basins, Massachusetts
Three-dimensional transient ground-water-flow models that simulate both freshwater and saltwater flow were developed for the flow cells of the Cape Cod Basin to determine the effects of long-term pumping and recharge, seasonal fluctuations in pumping and recharge, and prolonged reductions of natural recharge, on the position of the freshwater-saltwater interface, water-table and pond...
Authors
John P. Masterson, Paul M. Barlow
Relative costs of prebasic and prealternate molts for male blue-winged teal Relative costs of prebasic and prealternate molts for male blue-winged teal
We compared masses of definitive basic and alternate plumages of male Blue-winged Teal (Anas discors) to evaluate the hypothesis that nutritional investments in basic and alternate plumages are related to the duration that plumages are worn and to assess the relative costs of prebasic and prealternate molts. Because these plumages are worn by males for approximately equal durations, we...
Authors
W.L. Hohman, S.W. Manley, D. Richard
Long-term growth trends of baldcypress (Taxodium distichum (L.) rich.) at Caddo Lake, Texas Long-term growth trends of baldcypress (Taxodium distichum (L.) rich.) at Caddo Lake, Texas
Caddo Lake, situated on the border of northeast Texas and northwest Louisiana, USA is a medium-sized lake dominated by stands of baldcypress (Taxodiwn distichum). A study of tree growth was initiated at Caddo Lake to address concerns about the health of the baldcypress ecosystem. The lake has been subjected to several dramatic water-level changes over the past 200 years, including water...
Authors
B. D. Keeland, P.J. Young
Hydrogeologic framework of western Cape Cod, Massachusetts Hydrogeologic framework of western Cape Cod, Massachusetts
The aquifer of western Cape Cod consists of several hydrogeologic units composed of sand, gravel, silt, and clay (fig. 1) that were deposited during the late Wisconsinan glaciation of New England. The aquifer is a shallow, unconfined hydrologic system in which ground-water flows radially outward from the apex of the ground-water mound near the center of the peninsula toward the coast...
Authors
John P. Masterson, Byron D. Stone, Donald A. Walter, Jennifer G. Savoie
Use of inexpensive pressure transducers for measuring water levels in wells Use of inexpensive pressure transducers for measuring water levels in wells
Frequent measurement of below ground water levels at multiple locations is an important component of many wetland ecosystem studies. These measurements, however, are usually time consuming, labor intensive, and expensive. This paper describes a water-level sensor that is inexpensive and easy to construct. The sensor is placed below the expected low water level in a shallow well and, when...
Authors
B. D. Keeland, J.F. Dowd, W.S. Hardegree
Remote sensing at the Southern Science Center Remote sensing at the Southern Science Center
No abstract available
Authors
D.K. Chappell, S.C. Laine
1995 Scanned aerial photography of the Kisatchie National Forest in Louisiana 1995 Scanned aerial photography of the Kisatchie National Forest in Louisiana
No abstract available.
Authors
Calvin P. O’Neil, Lawrence R. Handley, Stephen Hartley, James B. Johnston, B. Coffland, Lynn Schoelerman
Prevalence of double wing molt in free-living ruddy ducks Prevalence of double wing molt in free-living ruddy ducks
No abstract available
Authors
William L. Hohman
Impacts of elevated inorganic carbon concentrations of the autotrophic components of coastal submersed macrophyte communities Impacts of elevated inorganic carbon concentrations of the autotrophic components of coastal submersed macrophyte communities
No abstract available.
Authors
William M. Rizzo, Hilary A. Neckles, Ronald G. Boustany, David R. Meaux, Martha R. Griffis