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.
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Metabolic products as biomarkers
Ideally, endogenous biomarkers would indicate both exposure and environmental effects of toxic chemicals; however, such comprehensive biochemical and physiological indices are currently being developed and, at the present time, are unavailable for use in environmental monitoring programs. Continued work is required to validate the use of biochemical and physiological stress indices as useful comp
Authors
M. J. Melancon, R. Alscher, W. Benson, G. Kruzynski, R.F. Lee, H.C. Sikka, R.B. Spies
Modeling metapopulation dynamics for single species of seabirds
Seabirds share many characteristics setting them apart from other birds. Importantly, they breed more or less obligatorily in local clusters of colonies that can move regularly from site to site, and they routinely exchange breeders. The properties of such metapopulations have only recently begun to be examined, often with models that are occupancy-based (using only colony presence or absence dat
Authors
P. A. Buckley, R. Downer
Modelling population change from time series data
Information on change in population size over time is among the most basic inputs for population management. Unfortunately, population changes are generally difficult to identify, and once identified difficult to explain. Sources of variald (patterns) in population data include: changes in environment that affect carrying capaciyy and produce trend, autocorrelative processes, irregular environme
Authors
R. J. Barker, J.R. Sauer
Nutritional indices of wild mammals: a new direction for wildlife and habitat management systems
No abstract available.
Authors
G. D. DelGiudice, U. S. Seal, L. D. Mech
Observations of seabirds along a 14,892-km cruise track in the tropical Pacific Ocean and the Bohol, Sulu, and South China Seas
No abstract available.
Authors
A.K. Kepler, C.B. Kepler, D. H. Ellis, J. S. Hatfield
Okaloosa darter Etheostoma okaloosae
Abstract not supplied at this time
Authors
N.M. Burkhead, J.D. Williams
Organochlorine contamination of sediments, fish, and invertebrates
No abstract available.
Authors
C.P. Rice, A. J. Krynitsky, P.F. Roscigno
Organochlorines and heavy metals in the Bering-Chukchi Sea ecosystems
No abstract available.
Authors
C.P. Rice, S.M. Chernyak, D. Hinckley, A. Krynitsky, T. Kolobova
Paleoceanographic and tectonic controls on the Pliocene diatom record of California
No abstract available
Authors
J.A. Barron
Park protection and public roads
No abstract available at this time
Authors
C. Schonewald-Cox, M. Buechner