Population Dynamics PDF Download

Author:
Publisher:
ISBN:
Category : Population
Languages : en
Pages : 268

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Author: Maurice E. Solomon
Publisher:
ISBN:
Category :
Languages : en
Pages : 64

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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Author: Shripad Tuljapurkar
Publisher: Springer Science & Business Media
ISBN: 3642516521
Category : Mathematics
Languages : en
Pages : 148

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Demography relates observable facts about individuals to the dynamics of populations. If the dynamics are linear and do not change over time, the classical theory of Lotka (1907) and Leslie (1945) is the central tool of demography. This book addresses the situation when the assumption of constancy is dropped. In many practical situations, a population will display unpredictable variation over time in its vital rates, which must then be described in statistical terms. Most of this book is concerned with the theory of populations which are subject to random temporal changes in their vital rates, although other kinds of variation (e. g. , cyclical) are also dealt with. The central questions are: how does temporal variation work its way into a population's future, and how does it affect our interpretation of a population's past. The results here are directed at demographers of humans and at popula tion biologists. The uneven mathematical level is dictated by the material, but the book should be accessible to readers interested in population the ory. (Readers looking for background or prerequisites will find much of it in Hal Caswell's Matrix population models: construction, analysis, and in terpretation (Sinauer 1989) ). This book is in essence a progress report and is deliberately brief; I hope that it is not mystifying. I have not attempted to be complete about either the history or the subject, although most sig nificant results and methods are presented.

Author: National Academies of Sciences, Engineering, and Medicine
Publisher: National Academies Press
ISBN: 030949575X
Category : Technology & Engineering
Languages : en
Pages : 111

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In 2014, the National Agricultural Statistics Service (NASS) engaged the National Academies of Sciences, Engineering, and Medicine to convene a planning committee to organize a public workshop for an expert open discussion of their then-current livestock models. The models had worked well for some time. Unfortunately beginning in 2013, an epidemic that killed baby pigs broke out in the United States. The epidemic was not fully realized until 2014 and spread to many states. The result was a decline in hog inventories and pork production that was not predicted by the models. NASS delayed the workshop until 2019 while it worked to develop models that could help in times both of equilibrium and shock (disease or disaster), as well as alternative approaches to help detect the onset of a shock. The May 15, 2019, workshop was consistent with NASS's 2014 intention, but with a focus on a model that can help predict hog inventories over time, including during times of shock. This publication summarizes the presentations and discussions from the workshop.

Author: C. Y. Cyrus Chu
Publisher: Oxford University Press
ISBN: 0195352882
Category : Social Science
Languages : en
Pages : 241

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Population Dynamics fills the gap between the classical supply-side population theory of Malthus and the modern demand-side theory of economic demography. In doing so, author Cyrus Chu investigates specifically the dynamic macro implications of various static micro family economic decisions. Holding the characteristic composition of the macro population to always be an aggregate result of some corresponding individual micro decision, Chu extends his research on the fertility-related decisions of families to an analysis of other economic determinations. Within this framework, Chu studies the income distribution, attitude composition, job structure, and aggregate savings and pensions of the population. While in some cases a micro-macro connection is easily established under regular behavioral assumptions, in several chapters Chu enlists the mathematical tool of branching processes to determine the connection. Offering a wealth of detail, this book provides a balanced discussion of background motivation, theoretical characterization, and empirical evidence in an effort to bring about a renewal in the economic approach to population dynamics. This welcome addition to the research and theory of economic demography will interest professional economists as well as professors and graduate students of economics.

Author: Naomi Cappuccino
Publisher: Elsevier
ISBN: 0080539254
Category : Science
Languages : en
Pages : 453

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An understanding of the dynamics of populations is critically important to ecologists, evolutionary biologists, wildlife managers, foresters, and many other biologists. This edited treatise brings together the latest research on how populations fluctuate in size, the factors that drive these changes, and the theories explaining how populations are regulated. The book also includes specific chapters dealing with insects of economic importance.

Author: Ralph Thomlinson
Publisher: New York : Random House
ISBN:
Category : Social Science
Languages : en
Pages : 680

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Author: C. Y. Cyrus Chu
Publisher: Oxford University Press, USA
ISBN: 0195121589
Category : Family demography
Languages : en
Pages : 241

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This book fills the gap between the classical supply-side theory of Malthus and the modern demand-side theory of economic demography. Specifically, it investigates the dynamic macroeconomic implications of various static microeconomic-family economic decisions. It is within this framework that Professor Chu studies the income distribution, the attitude composition, the job structure, and the savings (including pensions) of the population. Chu applies a mathematical apparatus, the theory of branching processes, to his problem, and supplies the reader with much detail and several discursive discussions on the topic. Graduate-level students, professors, and professional economists will be interested in Chu's efforts.

Author: Arthur Haupt
Publisher:
ISBN:
Category : Social Science
Languages : en
Pages : 70

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