Book Chapters
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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.
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: 6158
The effect of varying protein levels on blood chemistry, food consumption, and behavior of captive seaducks The effect of varying protein levels on blood chemistry, food consumption, and behavior of captive seaducks
The Chesapeake Bay is a primary wintering area for scoters and the long-tailed ducks (Clangia hyemalis) that migrate along the Atlantic Flyway. Recently, the Chesapeake Bay had undergone an ecosystem shift and little is known about how this is affecting the seaduck populations. We are determining what are the preferred food sources of the seaducks wintering on the Bay and analyzing the...
Authors
A. M. Wells-Berlin, Matthew C. Perry, Glenn H. Olsen
The herpetofauna of the Guayana Highlands: amphibians and reptiles of the Lost World The herpetofauna of the Guayana Highlands: amphibians and reptiles of the Lost World
No abstract available.
Authors
R.W. McDiarmid, M.A. Donnelly
The herpetofauna of the Rincon area, Peninsula de Osa, Costa Rica, a Central American lowland evergreen forest site The herpetofauna of the Rincon area, Peninsula de Osa, Costa Rica, a Central American lowland evergreen forest site
No abstract available.
Authors
R.W. McDiarmid, J.M. Savage
The microbiol ecology and physiology of aryl dehalogenation reactions and implications for bioremediation The microbiol ecology and physiology of aryl dehalogenation reactions and implications for bioremediation
No abstract available.
Authors
J.M. Suflita, G.T. Townsend
The Monterey Peninsula to Morro Bay The Monterey Peninsula to Morro Bay
No abstract available.
Authors
Cheryl Hapke
The role of fire in structuring sagebrush habitats and bird communities The role of fire in structuring sagebrush habitats and bird communities
Fire is a dominant and highly visible disturbance in sagebrush (Artemisia spp.) ecosystems. In lower elevation, xeric sagebrush communities, the role of fire has changed in recent decades from an infrequent disturbance maintaining a landscape mosaic and facilitating community processes to frequent events that alter sagebrush communities to exotic vegetation, from which restoration is...
Authors
S.T. Knick, A.L. Holmes, R.F. Miller
The role of infectious disease in natural communities: what introduced species tell us The role of infectious disease in natural communities: what introduced species tell us
No abstract available at this time
Authors
K. D. Lafferty, K.F. Smith, M.E. Torchin, A. P. Dobson, A. M. Kuris
Trematode parasites as estuarine indicators: opportunities, applications and comparisons with conventional community approaches, Trematode parasites as estuarine indicators: opportunities, applications and comparisons with conventional community approaches,
No abstract available at this time
Authors
T.C. Huspeni, R. F. Hechinger, K. D. Lafferty
Urbanization effects on fishes and habitat quality in a southern Piedmont river basin Urbanization effects on fishes and habitat quality in a southern Piedmont river basin
We quantified the relationships among urban land cover, fishes, and habitat quality to determine how fish assemblages respond to urbanization and if a habitat index can be used as an indirect measure of urban effects on stream ecosystems. We sampled 30 wadeable streams along an urban gradient (5?37% urban land cover) in the Etowah River basin, Georgia. Fish assemblages, sampled by...
Authors
D.M. Walters, Mary C. Freeman, D.S. Leigh, B. J. Freeman, C.P. Pringle
Urbanization effects on stream habitat characteristics in Boston, Massachusetts; Birmingham, Alabama; and Salt Lake City, Utah Urbanization effects on stream habitat characteristics in Boston, Massachusetts; Birmingham, Alabama; and Salt Lake City, Utah
Relations between stream habitat and urban land-use intensity were examined in 90 stream reaches located in or near the metropolitan areas of Salt Lake City, Utah (SLC); Birmingham, Alabama (BIR); and Boston, Massachusetts (BOS). Urban intensity was based on a multi-metric index (urban intensity index or UII) that included measures of land cover, socioeconomic organization, and urban
Authors
T.M. Short, E.M.P. Giddings, H. Zappia, J.F. Coles
Use of survey data to define regional and local priorities for management on National Wildlife Refuges Use of survey data to define regional and local priorities for management on National Wildlife Refuges
National Wildlife Refuges must manage habitats to support a variety of species that often have conflicting needs. To make reasonable management decisions, managers must know what species are priorities for their refuges and the relative importance of the species. Unfortunately, species priorities are often set regionally, but refuges must develop local priorities that reconcile regional
Authors
J.R. Sauer, John F. Casey, H. Laskowski, J.D. Taylor, J. Fallon
Variation in fire regimes of the Rocky Mountains: Implications for avian communities and fire management Variation in fire regimes of the Rocky Mountains: Implications for avian communities and fire management
Information about avian responses to fire in the U.S. Rocky Mountains is based solely on studies of crown fires. However, fire management in this region is based primarily on studies of low-elevation ponderosa pine (Pinus ponderosa) forests maintained largely by frequent understory fires. In contrast to both of these trends, most Rocky Mountain forests are subject to mixed severity fire...
Authors
Victoria A. Saab, Hugo D. W. Powell, Natasha B. Kotliar, Karen R. Newlon