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Publications

This is a list of publications written by Patuxent employees since Patuxent opened in 1939.  To search for Patuxent's publications by author or title, please click below to go to the USGS Publication Warehouse.

Filter Total Items: 8128

Uptake of environmental contaminants by small mammals in pickleweed habitats at San Francisco Bay, California Uptake of environmental contaminants by small mammals in pickleweed habitats at San Francisco Bay, California

Small mammals were live-trapped in pickleweed (Salicornia virginica) habitats near San Francisco Bay, California in order to measure the uptake of several contaminants and to evaluate the potential effects of these contaminants on the endangered salt marsh harvest mouse (Reithrodontomys raviventris). Tissues of house mice (Mus musculus), deer mice (Peromyscus maniculatus), and California...
Authors
D. R. Clark, K.S. Foerster, C. M. Marn, R. L. Hothem

Techniques for rearing and releasing nonmigratory cranes: Lessons from the Mississippi Sandhill Crane program Techniques for rearing and releasing nonmigratory cranes: Lessons from the Mississippi Sandhill Crane program

Captive-reared Mississippi sandhill cranes (Grus canadensis pulla) reared at the Patuxent Wildlife Research Center (Patuxent) have been released at the Mississippi Sandhill Crane National Wildlife Refuge (MSCNWR) since 1981. Of 131 birds released through December 1990, 103 were reared by foster parents. The remaining 28 were experimentally hand-reared in 1989 and 1990. After refining...
Authors
D. H. Ellis, Glenn H. Olsen, G.F. Gee, Jane M. Nicolich, K.E. O’Malley, Meenakshi Nagendran, Scott G. Hereford, P. Range, W.T. Harper, R.P. Ingram, D.G. Smith

The study of relatedness and genetic diversity in cranes The study of relatedness and genetic diversity in cranes

The U.S. Fish and Wildlife Service (Service) is responsible for recovery of endangered species in the wild and, when necessary, maintenance in captivity. These programs provide an immediate measure of insurance against extinction. A prerequisite inherent in all of these programs is the preservation of enough genetic diversity to maintain a viable population and to maintain the capacity...
Authors
G.F. Gee, H.C. Dessauer, J. Longmire, W.E. Briles, R.C. Simon

A stochastic population model of mid-continental mallards A stochastic population model of mid-continental mallards

We developed a simulation model that integrates infonnation on factors affecting the population dynamics of mallards in the mid-continental region of the United States. In the model we vary age, body mass, and reproductive and molt status of simulated females. Females use several types of nesting and foraging habitat in 15 geographic areas. Deterministic and stochastic events cause...
Authors
Rolf R. Koford, J.R. Sauer, Douglas H. Johnson, J.D. Nichols, M.D. Samuel

Black duck population units as determined by patterns of band recovery Black duck population units as determined by patterns of band recovery

To estimate regional survival and band recovery rates for waterfowl populations, banding sites must be grouped for data analysis. We group American black duck banding sites using cluster analysis of pairwise comparisons of the distributions of band recoveries. We propose 6 population units, substantially fewer than the 27 black duck reference areas currently used. Flyways do not seem to...
Authors
G.W. Pendleton, J.R. Sauer

Modelling population change from time series data 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
Authors
R. J. Barker, J.R. Sauer
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