Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16786
Stability and bias of classification rates in biological applications of discriminant analysis
We assessed the sampling stability of classification rates in discriminant analysis by using a factorial design with factors for multivariate dimensionality, dispersion structure, configuration of group means, and sample size. A total of 32,400 discriminant analyses were conducted, based on data from simulated populations with appropriate underlying statistical distributions. Simulation results in
Authors
B.K. Williams, K. Titus, J. E. Hines
Abundance and habitat use of reptiles on Rota, Mariana Islands
No abstract available.
Authors
G.J. Wiles, G.H. Rodda, T. H. Fritts, E.M. Taisacan
Small mammal populations at hazardous waste disposal sites near Houston, Texas, USA
Small mammals were trapped, tagged and recaptured in 0·45 ha plots at six hazardous industrial waste disposal sites to determine if populations, body mass and age structures were different from paired control site plots. Low numbers of six species of small mammals were captured on industrial waste sites or control sites. Only populations of hispid cotton rats at industrial waste sites and control
Authors
Edward L. Flickinger, J. D. Nichols
North American Breeding Bird Survey Annual Summary, 1989
The North American Breeding Bird Survey (BBS) is run by approximately 2,000 skilled amateur ornithologists and is coordinated cooperatively by the U.S. Fish and Wildlife Service and the Canadian Wildlife Service. Since 1966, BBS cooperators have been collecting standardized information on North American bird populations. The BBS is a roadside survey, comprised of permanent routes that are survey
Authors
Sam Droege, J.R. Sauer
Survey Designs and Statistical Methods for the Estimation of Avian Population Trends
No abstract available.
Authors
J.R. Sauer, Sam Droege
Dicofol (Kelthane) as an environmental contaminant: A review
Dicofol is persistent in soil and on plants. No compelling evidence exists that dicofol breaks down or is metabolized to DDTr in nature. Dicofol does not accumulate in birds as rapidly as DDE, and it has reproductive effects that are less harmful than DDE. Fish, birds, and mammals are reproductively sensitive to dicofol products, but levels presently found in wildlife are below levels shown exper
Authors
Donald R. Clark
Evaluating soil contamination
This compilation was designed to help U.S. Fish and Wildlife Service contaminant specialists evaluate the degree of contamination of a soil, based on chemical analyses. Included are regulatory criteria, opinions, brief descriptions of scientific articles, and miscellaneous information that might be useful in making risk assessments. The intent was to make hard-to-obtain material readily available
Authors
W. N. Beyer
Paraquat Hazards to Fish, Wildlife, and Invertebrates: A Synoptic Review
Paraquat (1,1`dimethyl4,4`bipyridinium) are broad-spectrum contact plant killers and herbage desiccants that were introduced commercially during the past 25 years. Today, they rank among the most widely used herbicides globally and are frequently used in combination with other herbicides. The recommended paraquat field application rates for terrestrial weed control usually range between 0.28 and
Authors
R. Eisler
Statistical inference for capture-recapture experiments
This monograph presents a detailed, practical exposition on the design, analysis, and interpretation of capture-recapture studies. The Lincoln-Petersen model (Chapter 2) and the closed population models (Chapter 3) are presented only briefly because these models have been covered in detail elsewhere. The Jolly- Seber open population model, which is central to the monograph, is covered in detail
Authors
Kenneth H. Pollock, James D. Nichols, Cavell Brownie, James E. Hines
Use of breeding bird atlases to monitor population change
No abstract available.
Authors
C.S. Robbins
Inventory and impact monitoring of river recreation sites within the New River Gorge National River
No abstract available.
Authors
J. L. Marion