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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.
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Identity, reproductive potential, distribution, ecology and management of invasive Pomacea maculata in the southern United States Identity, reproductive potential, distribution, ecology and management of invasive Pomacea maculata in the southern United States
Established populations of introduced Pomacea maculata, a highly fecund, large species of apple snail native to South America, now occur throughout southeast Asia, in Spain and extensively across the southern United States. Substantial research on nonnative apple snails takes place in Southeast Asia and has frequently identified apple snails as P. canaliculata. That these Asian...
Authors
Romi L. Burks, Jennifer Bernatis, James E. Byers, Jacoby Carter, Charles M. Martin, William G. McDowell, Jess Van Dyke
Landscapes and seascapes and tectonics Landscapes and seascapes and tectonics
No abstract available.
Authors
Warren J. Nokleberg, David Scholl, Thomas K. Bundtzen, David B. Stone
Marine geology and tectonics--What is under all that water? Marine geology and tectonics--What is under all that water?
This chapter is divided into two main sections. The first section is on Marine Geology Seascapes (what earth scientists call bathymetry). The second section is on Tectonics of Marine Areas.
Authors
David W. Scholl, Warren J. Nokleberg
Otters, marine Otters, marine
No abstract available.
Authors
M. Tim Tinker, James L. Bodkin, M. Ben-Davic, J. A. Estes
Pleistocene glaciers, lakes, and floods in north-central Washington State Pleistocene glaciers, lakes, and floods in north-central Washington State
The Methow, Chelan, Wenatchee, and other terrane blocks accreted in late Mesozoic to Eocene times. Methow valley is excavated in an exotic terrane of folded Mesozoic sedimentary and volcanic rocks faulted between crystalline blocks. Repeated floods of Columbia River Basalt about 16 Ma drowned a backarc basin to the southeast. Cirques, aretes, and U-shaped hanging troughs brand the Methow...
Authors
Richard B. Waitt
Regional geology and tectonics Regional geology and tectonics
This chapter describes the regional geology and tectonic origins of the major geologic units for the Northern Cordillera. The goals of the chapter are to: (1) provide a summary and regional overview of this vast region that contains a complicated geologic history; and (2) describe the major geologic units and tectonic events that cover a broad geologic time span from the Proterozoic to...
Authors
Warren J. Nokleberg
Quantile regression applications in ecology and the environmental sciences Quantile regression applications in ecology and the environmental sciences
No abstract available.
Authors
Brian S. Cade
Application of paleoecology to ecosystem restoration: A case study from south Florida’s estuaries Application of paleoecology to ecosystem restoration: A case study from south Florida’s estuaries
Paleoecological analyses of biotic assemblages from cores collected throughout south Florida’s estuaries indicate gradually increasing salinities over approximately the last 2000 years, consistent with rising sea level. Around the beginning of the twentieth century these gradual patterns of change began to shift, corresponding to the beginning of human alteration of the environment via...
Authors
G. Lynn Wingard
2.3. Global-scale atmospheric dispersion of microorganisms 2.3. Global-scale atmospheric dispersion of microorganisms
This chapter addresses long-range dispersion and the survival of microorganisms across a wide range of altitudes in Earth's atmosphere. Topics include mechanisms of dispersion, survivability of microorganisms known to be associated with long-range transport, natural and artificial sources of bioaerosols, residence time estimation through the use of proxy aerosols, transport and emission...
Authors
Dale W. Griffin, Cristina Gonzalez-Martin, C. Hoose, D.J. Smith
Anura—Frogs Anura—Frogs
No abstract available.
Authors
Darrel R. Frost, Emily Moriarty Lemmon, Roy W. McDiarmid, Joseph R. Mendelson III
Biogeography: An interweave of climate, fire, and humans Biogeography: An interweave of climate, fire, and humans
Longleaf pine (Pinus palustris) is an icon of the southeastern United States and has been considered a foundation species in forests, woodlands, and savannas of the region (Schwarz 1907; Platt 1999). Longleaf pine is an avatar for the extensive pine-dominated, fire-dependent ecosystems (Figure 2.1) that provide habitats for thousands of species and have largely vanished from the...
Authors
Michael C. Stambaugh, J. Morgan Varner, Stephen T. Jackson