Book Chapters
Science Quality and Integrity
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse more than 5,500 book chapters authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
Filter Total Items: 6063
The Neosho madtom and the multifaceted nature of population limiting factors
No abstract available.
Authors
Mark L. Wildhaber
THE SKIN | Functional morphology of the integumentary system in fishes
The integument that covers the outer surface of a fish’s body and fins is a multifunctional organ, with morphological features highly adapted to carry out these functions. The integument consists of two layers. The outer layer, the epidermis, is essentially cellular in structure, comprised of a multilayered epithelium that usually includes specialized cells. The inner layer, the dermis, is primari
Authors
D.G. Elliott
Topographic mapping data semantics through data conversion and enhancement
This paper presents research on the semantics of topographic data for triples and ontologies to blend the capabilities of the Semantic Web and The National Map of the U.S. Geological Survey. Automated conversion of relational topographic data of several geographic sample areas to the triple data model standard resulted in relatively poor semantic associations. Further research employed vocabularie
Authors
Dalia Varanka, Jonathan Carter, E. Lynn Usery, Thomas Shoberg
U.S. Geological Survey: A synopsis of Three-dimensional Modeling
The U.S. Geological Survey (USGS) is a multidisciplinary agency that provides assessments of natural resources (geological, hydrological, biological), the disturbances that affect those resources, and the disturbances that affect the built environment, natural landscapes, and human society. Until now, USGS map products have been generated and distributed primarily as 2-D maps, occasionally providi
Authors
Linda J. Jacobsen, Pierre D. Glynn, Geoff A. Phelps, Randall C. Orndorff, Gerald W. Bawden, V. J. S. Grauch
Upper Cretaceous bituminous coal deposits of the Olmos Formation, Maverick County, Texas
This report describes the bituminous coal deposits of the Olmos Formation (Navarro Group, Upper Cretaceous; Figures 1, 2) of Maverick County in south Texas. Although these were not evaluated quantitatively as part of the current Gulf Coastal Plain coal-resource assessment, a detailed review is presented in this chapter.Prior to the late 1920s, these coal beds were mined underground on a large scal
Authors
Robert W. Hook, Peter D. Warwick, John R. SanFilipo
Use of stable isotopes and mercury to assess trophic positions of black carp and other large fishes in the Red-Atchafalaya River system, Louisiana, USA
No abstract available.
Authors
L. Nico, A. Demopoulos, D. Gualtieri, C. Wieser
Use of visible geostationary operational meteorological satellite imagery in mapping reference and potential evapotranspiration over Florida
No abstract available.
Authors
John R. Mecikalski, David Summers, Jennifer M. Jacobs, Chandra S. Pathak, Simon J. Paech, Ellen M. Douglas
Vegetation of the Elwha River Estuary
The Elwha River estuary supports one of the most diverse coastal wetland complexes yet described in the Salish Sea region, in terms of vegetation types and plant species richness. Using a combination of aerial imagery and vegetation plot sampling, we identified 6 primary vegetation types and 121 plant species in a 39.7 ha area. Most of the estuary is dominated by woody vegetation types, with mixed
Authors
Tracy L. Fuentes, Patrick B. Shafroth, Cynthia Pritekel, Matthew M. Beirne, Vanessa B. Beauchamp
Vegetation of the Elwha River Estuary - Chapter 8
The Elwha River estuary supports one of the most diverse coastal wetland complexes yet described in the Salish Sea region, in terms of vegetation types and plant species richness. Using a combination of aerial imagery and vegetation plot sampling, we identified 6 primary vegetation types and 121 plant species in a 39.7 ha area. Most of the estuary is dominated by woody vegetation types, with mixed
Authors
Patrick B. Shafroth, Tracy L. Fuentes, Cynthia Pritekel, Matthew M. Beirne, Vanessa B. Beauchamp
Verification of ploidy and reproductive potential in triploid black carp and grass carp
No abstract available
Authors
Diana M. Papoulias, James S. Candrl, Jill A. Jenkins, Donald E. Tillitt
Walleye and sauger habitat
No abstract available.
Authors
Michael A. Bozek, Timothy J. Haxton, Joshua K. Raabe