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Population Cycles
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Book Synopsis Population Cycles by : Alan Andrew Berryman
Download or read book Population Cycles written by Alan Andrew Berryman and published by Oxford University Press, USA. This book was released on 2002 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: For over sixty years, understanding the causes of multiannual cycles in animal populations has been a central issue in ecology. This book brings together ten of the leaders in this field to examine the major hypotheses and recent evidence in the field, and to establish that trophic interactions are an important factor in driving at least some of the major regular oscillations in animal populations that have long puzzled ecologists.
Book Synopsis Population Cycles by : Alan Berryman
Download or read book Population Cycles written by Alan Berryman and published by Oxford University Press. This book was released on 2002-11-07 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: For over sixty years, understanding the causes of multiannual cycles in animal populations has been a central issue in ecology. This book brings together ten of the leaders in this field to examine the major hypotheses and recent evidence in the field, and to establish that trophic interactions are an important factor in driving at least some of the major regular oscillations in animal populations that have long puzzled ecologists.
Book Synopsis Population Fluctuations in Rodents by : Charles J. Krebs
Download or read book Population Fluctuations in Rodents written by Charles J. Krebs and published by University of Chicago Press. This book was released on 2013-04-19 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: How did rodent outbreaks in Germany help to end World War I? What caused the destructive outbreak of rodents in Oregon and California in the late 1950s, the large population outbreak of lemmings in Scandinavia in 2010, and the great abundance of field mice in Scotland in the spring of 2011? Population fluctuations, or outbreaks, of rodents constitute one of the classic problems of animal ecology, and in Population Fluctuations in Rodents, Charles J. Krebs sifts through the last eighty years of research to draw out exactly what we know about rodent outbreaks and what should be the agenda for future research. Krebs has synthesized the research in this area, focusing mainly on the voles and lemmings of the Northern Hemisphere—his primary area of expertise—but also referring to the literature on rats and mice. He covers the patterns of changes in reproduction and mortality and the mechanisms that cause these changes—including predation, disease, food shortage, and social behavior—and discusses how landscapes can affect population changes, methodically presenting the hypotheses related to each topic before determining whether or not the data supports them. He ends on an expansive note, by turning his gaze outward and discussing how the research on rodent populations can apply to other terrestrial mammals. Geared toward advanced undergraduate students, graduate students, and practicing ecologists interested in rodent population studies, this book will also appeal to researchers seeking to manage rodent populations and to understand outbreaks in both natural and urban settings—or, conversely, to protect endangered species.
Book Synopsis Complex Population Dynamics by : Peter Turchin
Download or read book Complex Population Dynamics written by Peter Turchin and published by Princeton University Press. This book was released on 2003-02-02 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Why do organisms become extremely abundant one year and then seem to disappear a few years later? Why do population outbreaks in particular species happen more or less regularly in certain locations, but only irregularly (or never at all) in other locations? Complex population dynamics have fascinated biologists for decades. By bringing together mathematical models, statistical analyses, and field experiments, this book offers a comprehensive new synthesis of the theory of population oscillations. Peter Turchin first reviews the conceptual tools that ecologists use to investigate population oscillations, introducing population modeling and the statistical analysis of time series data. He then provides an in-depth discussion of several case studies--including the larch budmoth, southern pine beetle, red grouse, voles and lemmings, snowshoe hare, and ungulates--to develop a new analysis of the mechanisms that drive population oscillations in nature. Through such work, the author argues, ecologists can develop general laws of population dynamics that will help turn ecology into a truly quantitative and predictive science. Complex Population Dynamics integrates theoretical and empirical studies into a major new synthesis of current knowledge about population dynamics. It is also a pioneering work that sets the course for ecology's future as a predictive science.
Download or read book Secular Cycles written by Peter Turchin and published by Princeton University Press. This book was released on 2009-08-09 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Secular Cycles elaborates and expands upon the demographic-structural theory first advanced by Jack Goldstone, which provides an explanation of long-term oscillations. This book tests that theory's specific and quantitative predictions by tracing the dynamics of population numbers, prices and real wages, elite numbers and incomes, state finances, and sociopolitical instability. Turchin and Nefedov study societies in England, France, and Russia during the medieval and early modern periods, and look back at the Roman Republic and Empire. Incorporating theoretical and quantitative history, the authors examine a specific model of historical change and, more generally, investigate the utility of the dynamical systems approach in historical applications."--BOOK JACKET.
Book Synopsis Social Systems and Population Cycles in Voles by : R. Tamarin
Download or read book Social Systems and Population Cycles in Voles written by R. Tamarin and published by Birkhäuser. This book was released on 2013-11-21 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Concepts of Biology by : Samantha Fowler
Download or read book Concepts of Biology written by Samantha Fowler and published by . This book was released on 2023-05-12 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book The Chironomidae written by P.D. Armitage and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 579 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dipteran family Chironomidae is the most widely distributed and frequently the most abundant group of insects in freshwater, with rep resentatives in both terrestrial and marine environments. A very wide range of gradients of temperature, pH, oxygen concentration, salinity, current velocity, depth, productivity, altitude and latitude have been exploited, by at least some chironomid species, and in grossly polluted environments chironomids may be the only insects present. The ability to exist in such a wide range of conditions has been achieved largely by behavioural and physiological adaptations with relatively slight morphological changes. It has been estimated that the number of species world-wide may be as high as 15000. This high species diversity has been attributed to the antiquity of the family, relatively low vagility leading to isolation, and evolutionary plasticity. In many aquatic ecosystems the number of chironomid species present may account for at least 50% of the total macroinvertebrate species recorded. This species richness, wide distribution and tolerance to adverse conditions has meant that the group is frequently recorded in ecological studies but taxonomic difficulties have in the past prevented non-specialist identification beyond family or subfamily level. Recent works, including genetic studies, have meant that the family is receiving much more attention globally.
Book Synopsis Animal Population Ecology by : J Dempster
Download or read book Animal Population Ecology written by J Dempster and published by Elsevier. This book was released on 2012-12-02 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Animal Population Ecology focuses on the interaction between the various factors that affect an animal population. Population ecology is the study of the factors that determine the abundance of species and is concerned with the identification and mode of action of those environmental factors that cause fluctuations in population size and of those which determine the extent of these fluctuations. Organized into 11 chapters, the book initially examines some of the basic ideas about animal populations and defines many of the terms used by population ecologists. Then, it describes the action of the most important factors affecting population size. The interaction between these factors is demonstrated in chapters 8 and 9, wherein the results from studies of a few selected species are presented in detail. Finally, chapters 10 and 11 cover the development of generalized theories of population dynamics and their application to practical problems. With a strong focus on intensive study of animal populations in the field, rather than elaborate theories, the book will be helpful to population ecologists, animal researchers, teachers, and students.
Book Synopsis Sensitivity Analysis: Matrix Methods in Demography and Ecology by : Hal Caswell
Download or read book Sensitivity Analysis: Matrix Methods in Demography and Ecology written by Hal Caswell and published by Springer. This book was released on 2019-04-02 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book shows how to use sensitivity analysis in demography. It presents new methods for individuals, cohorts, and populations, with applications to humans, other animals, and plants. The analyses are based on matrix formulations of age-classified, stage-classified, and multistate population models. Methods are presented for linear and nonlinear, deterministic and stochastic, and time-invariant and time-varying cases. Readers will discover results on the sensitivity of statistics of longevity, life disparity, occupancy times, the net reproductive rate, and statistics of Markov chain models in demography. They will also see applications of sensitivity analysis to population growth rates, stable population structures, reproductive value, equilibria under immigration and nonlinearity, and population cycles. Individual stochasticity is a theme throughout, with a focus that goes beyond expected values to include variances in demographic outcomes. The calculations are easily and accurately implemented in matrix-oriented programming languages such as Matlab or R. Sensitivity analysis will help readers create models to predict the effect of future changes, to evaluate policy effects, and to identify possible evolutionary responses to the environment. Complete with many examples of the application, the book will be of interest to researchers and graduate students in human demography and population biology. The material will also appeal to those in mathematical biology and applied mathematics.
Book Synopsis Populations in a Seasonal Environment by : Stephen D. Fretwell
Download or read book Populations in a Seasonal Environment written by Stephen D. Fretwell and published by Princeton University Press. This book was released on 1972-07-21 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most organisms live in a seasonal environment. During their life cycles, some species face seasons of cold and heat, aridity and abundant rainfall, migration and stable residence, breeding and nonbreeding. Populations grow and decline as supplies of materials essential to their survival wax and wane. Such qualitative truths as these flow obviously from field observations. In this original monograph, Stephen Fretwell analyzes the highly complex interaction between a population and a regularly varying environment in an attempt to define and measure seasonality as a critical parameter in the general theory of population regulation. Concerned primarily with the size and the habitat distribution of populations, Professor Fretwell develops simple models that, when applied to specific populations, usually of birds, demonstrate the effect of seasonal variations on the regulation of populations. He maintains that seasonality, as a concept, is essential to a full understanding of environmental interaction. During the course of his exposition, the author offers several new hypotheses, including theories affecting the breeding, numbers, distribution, and diversity of wintering birds, and a theory affecting the body size of sparrows.
Book Synopsis Modeling Dynamic Biological Systems by : Bruce Hannon
Download or read book Modeling Dynamic Biological Systems written by Bruce Hannon and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 399 pages. Available in PDF, EPUB and Kindle. Book excerpt: Models help us understand the dynamics of real-world processes by using the computer to mimic the actual forces that are known or assumed to result in a system's behavior. This book does not require a substantial background in mathematics or computer science.
Book Synopsis Cycle of Segregation by : Maria Krysan
Download or read book Cycle of Segregation written by Maria Krysan and published by Russell Sage Foundation. This book was released on 2017-12-13 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Fair Housing Act of 1968 outlawed housing discrimination by race and provided an important tool for dismantling legal segregation. But almost fifty years later, residential segregation remains virtually unchanged in many metropolitan areas, particularly where large groups of racial and ethnic minorities live. Why does segregation persist at such high rates and what makes it so difficult to combat? In Cycle of Segregation, sociologists Maria Krysan and Kyle Crowder examine how everyday social processes shape residential stratification. Past neighborhood experiences, social networks, and daily activities all affect the mobility patterns of different racial groups in ways that have cemented segregation as a self-perpetuating cycle in the twenty-first century. Through original analyses of national-level surveys and in-depth interviews with residents of Chicago, Krysan and Crowder find that residential stratification is reinforced through the biases and blind spots that individuals exhibit in their searches for housing. People rely heavily on information from friends, family, and coworkers when choosing where to live. Because these social networks tend to be racially homogenous, people are likely to receive information primarily from members of their own racial group and move to neighborhoods that are also dominated by their group. Similarly, home-seekers who report wanting to stay close to family members can end up in segregated destinations because their relatives live in those neighborhoods. The authors suggest that even absent of family ties, people gravitate toward neighborhoods that are familiar to them through their past experiences, including where they have previously lived, and where they work, shop, and spend time. Because historical segregation has shaped so many of these experiences, even these seemingly race-neutral decisions help reinforce the cycle of residential stratification. As a result, segregation has declined much more slowly than many social scientists have expected. To overcome this cycle, Krysan and Crowder advocate multi-level policy solutions that pair inclusionary zoning and affordable housing with education and public relations campaigns that emphasize neighborhood diversity and high-opportunity areas. They argue that together, such programs can expand the number of destinations available to low-income residents and help offset the negative images many people hold about certain neighborhoods or help introduce them to places they had never considered. Cycle of Segregation demonstrates why a nuanced understanding of everyday social processes is critical for interrupting entrenched patterns of residential segregation.
Author :National Academies of Sciences, Engineering, and Medicine Publisher :National Academies Press ISBN 13 :0309452961 Total Pages :583 pages Book Rating :4.3/5 (94 download)
Book Synopsis Communities in Action by : National Academies of Sciences, Engineering, and Medicine
Download or read book Communities in Action written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2017-04-27 with total page 583 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the United States, some populations suffer from far greater disparities in health than others. Those disparities are caused not only by fundamental differences in health status across segments of the population, but also because of inequities in factors that impact health status, so-called determinants of health. Only part of an individual's health status depends on his or her behavior and choice; community-wide problems like poverty, unemployment, poor education, inadequate housing, poor public transportation, interpersonal violence, and decaying neighborhoods also contribute to health inequities, as well as the historic and ongoing interplay of structures, policies, and norms that shape lives. When these factors are not optimal in a community, it does not mean they are intractable: such inequities can be mitigated by social policies that can shape health in powerful ways. Communities in Action: Pathways to Health Equity seeks to delineate the causes of and the solutions to health inequities in the United States. This report focuses on what communities can do to promote health equity, what actions are needed by the many and varied stakeholders that are part of communities or support them, as well as the root causes and structural barriers that need to be overcome.
Book Synopsis GMAT Official Guide 2018: Book + Online by : GMAC (Graduate Management Admission Council)
Download or read book GMAT Official Guide 2018: Book + Online written by GMAC (Graduate Management Admission Council) and published by John Wiley & Sons. This book was released on 2017-06-19 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The definitive guide from the makers of the GNAT exam."
Book Synopsis Unstoppable Global Warming by : Siegfried Fred Singer
Download or read book Unstoppable Global Warming written by Siegfried Fred Singer and published by Rowman & Littlefield Publishers. This book was released on 2007 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Argues that global warming is a natural, cyclical phenomenon that has not been caused by human activities and that its negative consequences have been greatly overestimated.
Download or read book Molecular Biology of the Cell written by and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
