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: 6164
Developmental instability: an appropriate indicator of plant fitness? Developmental instability: an appropriate indicator of plant fitness?
No abstract available.
Authors
M. Tracy, D.C. Freeman, J.J. Duda, K.J. Miglia, J.H. Graham, R. A. Hough
Ecosystem effects on wolves Ecosystem effects on wolves
No abstract available.
Authors
L.D. Mech, L. Boitani
Ecosystem-level consequences of migratory faunal depletion caused by dams Ecosystem-level consequences of migratory faunal depletion caused by dams
Humans have been damming rivers for millennia, and our more ambitious efforts over the past century have arguably altered river ecosystems more extensively than any other anthropogenic activity. Effects of damming on river biota include decimation of migratory fauna (e.g., diadromous and potamodromous fishes and crustaceans), lost fisheries, and imperilment of obligate riverine taxa...
Authors
Mary C. Freeman, C. M. Pringle, E.A. Greathouse, B. J. Freeman
Ecotoxicology of mercury Ecotoxicology of mercury
No abstract available.
Authors
James G. Wiener, David P. Krabbenhoft, Gary H. Heinz, Anton M. Scheuhammer
Effects of contaminated dredge spoils on wetland plant communities: A literature review Effects of contaminated dredge spoils on wetland plant communities: A literature review
Contaminated dredge spoil is a national concern due to its scope and effects on biota, water quality, and the physical environment. This literature review discusses the effects of contaminated dredge spoils on wetland plant communities. Plant communities naturally shift over time with changing environmental conditions. Addition of toxins and nutrients and changes in hydrology may...
Authors
Paul M. Stewart, Eric L. Garza, Jason T. Butcher
Effects of PAHs on marine birds, mammals and reptiles Effects of PAHs on marine birds, mammals and reptiles
No abstract available.
Authors
P.H. Albers, Thomas R. Loughlin
Environmental factors affecting contaminant toxicity in aquatic and terrestrial vertebrates Environmental factors affecting contaminant toxicity in aquatic and terrestrial vertebrates
Physical and natural factors have long been known to influence the toxicity of environmental contaminants to vertebrates. The majority of data that address this topic have been derived from studies on fish, highly inbred laboratory rodents, and man.' The degree to which these factors modify toxicity has principally been elucidated by controlled laboratory experiments. Until recently, the
Authors
Barnett A. Rattner, Alan G. Heath
Estimation of change in populations and communities from monitoring survey data Estimation of change in populations and communities from monitoring survey data
Monitoring surveys provide fundamental information for use in environmental decision making by permitting assessment of both current population (or community) status and change in status, by providing a historical context of the present status, and by documenting response to ongoing management. Conservation of species and communities has historically been based upon monitoring...
Authors
J.R. Sauer, W.A. Link, J.D. Nichols
Examining the relationship between environmental variables and ordination axes using latent variables and structural equation modelling Examining the relationship between environmental variables and ordination axes using latent variables and structural equation modelling
No abstract available
Authors
James B. Grace
Fire and exotics in the Mojave Desert: An irreversible change? A state-transition model for blackbrush (Coleogyne ramosissima) habitat Fire and exotics in the Mojave Desert: An irreversible change? A state-transition model for blackbrush (Coleogyne ramosissima) habitat
No abstract available at this time
Authors
D.F. Haines, T. C. Esque, L.A. DeFalco, S.J. Scoles, M.L. Brooks, R. H. Webb
Formation and evolution of valley-bottom and channel features, Lower Deschutes River, Oregon Formation and evolution of valley-bottom and channel features, Lower Deschutes River, Oregon
Primary geologic and geomorphic processes that formed valley-bottom and channel features downstream from the Pelton-Round Butte dam complex are inferred from a canyon-long analysis of feature morphology, composition, location, and spatial distribution. Major controls on valley-bottom morphology are regional tectonics, large landslides, and outsized floods (floods with return periods...
Authors
Janet H. Curran, Jim E. O’Conner