American Community Survey
Author :
Publisher :
Page : 18 pages
File Size : 38,64 MB
Release : 2000
Category : American community survey
ISBN :
Author :
Publisher :
Page : 18 pages
File Size : 38,64 MB
Release : 2000
Category : American community survey
ISBN :
Author : National Research Council
Publisher : National Academies Press
Page : 399 pages
File Size : 47,25 MB
Release : 2013-10-04
Category : Technology & Engineering
ISBN : 0309264944
Using Science to Improve the BLM Wild Horse and Burro Program: A Way Forward reviews the science that underpins the Bureau of Land Management's oversight of free-ranging horses and burros on federal public lands in the western United States, concluding that constructive changes could be implemented. The Wild Horse and Burro Program has not used scientifically rigorous methods to estimate the population sizes of horses and burros, to model the effects of management actions on the animals, or to assess the availability and use of forage on rangelands. Evidence suggests that horse populations are growing by 15 to 20 percent each year, a level that is unsustainable for maintaining healthy horse populations as well as healthy ecosystems. Promising fertility-control methods are available to help limit this population growth, however. In addition, science-based methods exist for improving population estimates, predicting the effects of management practices in order to maintain genetically diverse, healthy populations, and estimating the productivity of rangelands. Greater transparency in how science-based methods are used to inform management decisions may help increase public confidence in the Wild Horse and Burro Program.
Author : James Raymondo
Publisher : Bloomsbury Publishing USA
Page : 222 pages
File Size : 12,10 MB
Release : 1992-06-23
Category : Business & Economics
ISBN : 0313367035
Raymondo provides a step-by-step guide through the complex issues associated with the methods of producing population estimates and projections. The author's approach reflects both his formal training in the study of population and his experience as an applied demographer, where he was frequently called upon to present technical population data to a lay audience. The result is a book firmly grounded in the methods and procedures of demography, but presented in a clear, concise manner for the everyday user of population estimates and projections. This book is a key resource for anyone dealing with population data. Raymondo begins by describing the general nature and differences of population estimates and projections. The author then takes the reader through several methodological issues that provide a foundation for the basic concepts of demographic analysis related to the production of population estimates and projections. Also provided is a helpful discussion on the intricacies of U.S. Bureau of the Census geographic concepts, and a general discussion on major sources of data for the estimation and projection process.
Author : Samantha Fowler
Publisher :
Page : 0 pages
File Size : 43,62 MB
Release : 2023-05-12
Category :
ISBN : 9781739015503
Black & white print. Concepts of Biology is designed for the typical introductory biology course for nonmajors, covering standard scope and sequence requirements. The text includes interesting applications and conveys the major themes of biology, with content that is meaningful and easy to understand. The book is designed to demonstrate biology concepts and to promote scientific literacy.
Author : John R. Skalski
Publisher : Elsevier
Page : 656 pages
File Size : 18,28 MB
Release : 2010-07-20
Category : Science
ISBN : 0080455123
Wildlife Demography compiles the multitude of available estimation techniques based on sex and age data, and presents these varying techniques in one organized, unified volume. Designed to guide researchers to the most appropriate estimator based upon their particular data set and the desired level of study precision, this book provides quantitative consideration, statistical models, estimator variance, assumptions and examples of use. The authors focus on estimation techniques using sex and age ratios because this data is relatively easy to collect and commonly used by wildlife management. - Applicable to a wide array of wildlife species, including game and non-game birds and mammals - Features more than 100 annotated examples illustrating application of statistical methods - Includes more than 640 references of the analysis of nontagging data and the factors that may influence interpretation - Derives historical and ad hoc demographic methods in a modern statistical framework
Author : Neil J. Salkind
Publisher : SAGE
Page : 1779 pages
File Size : 18,96 MB
Release : 2010-06-22
Category : Philosophy
ISBN : 1412961270
"Comprising more than 500 entries, the Encyclopedia of Research Design explains how to make decisions about research design, undertake research projects in an ethical manner, interpret and draw valid inferences from data, and evaluate experiment design strategies and results. Two additional features carry this encyclopedia far above other works in the field: bibliographic entries devoted to significant articles in the history of research design and reviews of contemporary tools, such as software and statistical procedures, used to analyze results. It covers the spectrum of research design strategies, from material presented in introductory classes to topics necessary in graduate research; it addresses cross- and multidisciplinary research needs, with many examples drawn from the social and behavioral sciences, neurosciences, and biomedical and life sciences; it provides summaries of advantages and disadvantages of often-used strategies; and it uses hundreds of sample tables, figures, and equations based on real-life cases."--Publisher's description.
Author :
Publisher :
Page : 1056 pages
File Size : 27,87 MB
Release : 1962
Category : United States
ISBN :
Author : United States. Bureau of the Census
Publisher :
Page : 178 pages
File Size : 50,88 MB
Release : 1981
Category : Government publications
ISBN :
Demographic projections, statistical tables, international, countries with population of 10 million or more, 1981 - includes 1950- 1980 trends.
Author : National Research Council
Publisher : National Academies Press
Page : 176 pages
File Size : 47,14 MB
Release : 2012-06-12
Category : Social Science
ISBN : 0309255635
In the early 1990s, the Census Bureau proposed a program of continuous measurement as a possible alternative to the gathering of detailed social, economic, and housing data from a sample of the U.S. population as part of the decennial census. The American Community Survey (ACS) became a reality in 2005, and has included group quarters (GQ)-such places as correctional facilities for adults, student housing, nursing facilities, inpatient hospice facilities, and military barracks-since 2006, primarily to more closely replicate the design and data products of the census long-form sample. The decision to include group quarters in the ACS enables the Census Bureau to provide a comprehensive benchmark of the total U.S. population (not just those living in households). However, the fact that the ACS must rely on a sample of what is a small and very diverse population, combined with limited funding available for survey operations, makes the ACS GQ sampling, data collection, weighting, and estimation procedures more complex and the estimates more susceptible to problems stemming from these limitations. The concerns are magnified in small areas, particularly in terms of detrimental effects on the total population estimates produced for small areas. Small Populations, Large Effects provides an in-depth review of the statistical methodology for measuring the GQ population in the ACS. This report addresses difficulties associated with measuring the GQ population and the rationale for including GQs in the ACS. Considering user needs for ACS data and of operational feasibility and compatibility with the treatment of the household population in the ACS, the report recommends alternatives to the survey design and other methodological features that can make the ACS more useful for users of small-area data.
Author : Raghunath Arnab
Publisher : Academic Press
Page : 932 pages
File Size : 29,5 MB
Release : 2017-03-08
Category : Mathematics
ISBN : 0128118970
Survey Sampling Theory and Applications offers a comprehensive overview of survey sampling, including the basics of sampling theory and practice, as well as research-based topics and examples of emerging trends. The text is useful for basic and advanced survey sampling courses. Many other books available for graduate students do not contain material on recent developments in the area of survey sampling. The book covers a wide spectrum of topics on the subject, including repetitive sampling over two occasions with varying probabilities, ranked set sampling, Fays method for balanced repeated replications, mirror-match bootstrap, and controlled sampling procedures. Many topics discussed here are not available in other text books. In each section, theories are illustrated with numerical examples. At the end of each chapter theoretical as well as numerical exercises are given which can help graduate students. - Covers a wide spectrum of topics on survey sampling and statistics - Serves as an ideal text for graduate students and researchers in survey sampling theory and applications - Contains material on recent developments in survey sampling not covered in other books - Illustrates theories using numerical examples and exercises