Skip to main content
U.S. flag

An official website of the United States government

Book Chapters

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

Geologic, hydrologic, and urban hazards for design in desert environments

No abstract available.
Authors
Robert H. Webb, Stanley A. Leake, Richard A. Malloy

Geologic framework and petroleum systems of Cook Inlet basin, south-central Alaska

This report provides a comprehensive overview of the stratigraphy, structure, tectonics, and petroleum systems of the Cook Inlet basin, an important oil- and gas-producing region in south-central Alaska.
Authors
D. L. LePain, Richard G. Stanley, K. P. Helmold, D.P. Shellenbaum

Nocturnal activity of nesting shrubland and grassland passerines: Chapter 9

Nocturnal activity of nesting passerines is largely undocumented in field situations. We used video recordings to quantify sleep patterns of four shrubland and three grassland bird species during the nestling period. All species exhibited “back sleep” (bill tucked under scapular feathers); individuals woke frequently for vigils of their surroundings. Sleep-bout duration varied from 6 minutes (gras
Authors
Christy M. Slay, Kevin S. Ellison, Christine Ribic, Kimberly G. Smith, Carolyn M. Schmitz

40Ar/39Ar evidence for Late Devonian deformation in the Chester shear zone, east central Maine

No abstract available.
Authors
Hind Ghanem, Michael J. Kunk, Allan Ludman, David Bish, Robert Wintsch, Joseph Biasi

A river runs through it: conceptual models in fluvial geomorphology

No abstract available.
Authors
Gordon E. Grant, James E. O'Connor, M. Gordon Wolman

Abundance: Population size and density estimation

Estimates of population size (total number of individuals) or density (number of individuals per unit area) are some of the most basic requirements for wildlife research and management. This article provides a brief overview of approaches for wildlife population estimation. These include habitat‐based approaches such as quadrat, line intercept, distance, and repeated count methods, as well as anim
Authors
Mark S. Udevitz, William R. Gould

American Avocet (Recurvirostra americana)

This large, striking shorebird with long bluish-gray legs, a long recurved bill, and a black-and-white chevron pattern on its back and wings is one of four Avocet species in the world, the only one with distinct breeding and non-breeding plumages -- its grayish-white head and neck feathers become cinnamon in early spring as birds begin to form pairs and migrate to breeding areas.
Authors
Joshua T. Ackerman, C. Alex Hartman, Mark P. Herzog, John Y. Takekawa, Julie A. Robinson, Lewis W. Oring, Joseph P. Skorupa, Ruth Boettcher

Assessing and measuring wetland hydrology

Virtually all ecological processes that occur in wetlands are influenced by the water that flows to, from, and within these wetlands. This chapter provides the “how-to” information for quantifying the various source and loss terms associated with wetland hydrology. The chapter is organized from a water-budget perspective, with sections associated with each of the water-budget components that are c
Authors
Donald O. Rosenberry, Masaki Hayashi

Blending local scale information for developing agricultural resilience in Ethiopia

This brief article looks at the intersection of climate, land cover/land use, and population trends in the world's most food insecure country, Ethiopia. As a result of warming in the Indian and Western Pacific oceans, Ethiopia has experienced substantial drying over the past 20 years. We intersect the spatial pattern of this drying with high resolution climatologies, maps of agricultural expansion
Authors
Christopher C. Funk, Gregory Husak, A.S Mahiny, Gary Eilerts, James Rowland

Brutus

No abstract available.
Authors
L. David Mech

Capture-recapture methodology

Capture-recapture methods were initially developed to estimate human population abundance, but since that time have seen widespread use for fish and wildlife populations to estimate and model various parameters of population, metapopulation, and disease dynamics. Repeated sampling of marked animals provides information for estimating abundance and tracking the fate of individuals in the face of im
Authors
William R. Gould, William L. Kendall