Ecological Niches and Geographic Distributions (MPB-49) PDF Download
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Author: A. Townsend Peterson
Publisher: Princeton University Press
ISBN: 0691136882
Category : Science
Languages : en
Pages : 330
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Book Description
Terminology, conceptual overview, biogeography, modeling.
Author: A. Townsend Peterson
Publisher: Princeton University Press
ISBN: 0691136882
Category : Science
Languages : en
Pages : 330
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Book Description
Terminology, conceptual overview, biogeography, modeling.
Author: Bryan K. Epperson
Publisher: Princeton University Press
ISBN: 0691086699
Category : Mathematics
Languages : en
Pages : 372
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Book Description
Population genetics has made great strides in applying statistical analysis and mathematical modeling to understand how genes mutate and spread through populations over time. But real populations also live in space. Streams, mountains, and other geographic features often divide populations, limit migration, or otherwise influence gene flow. This book rigorously examines the processes that determine geographic patterns of genetic variation, providing a comprehensive guide to their study and interpretation. Geographical Genetics has a unique focus on the mathematical relationships of spatial statistical measures of patterns to stochastic processes. It also develops the probability and distribution theory of various spatial statistics for analysis of population genetic data, detailing exact methods for using various spatial features to make precise inferences about migration, natural selection, and other dynamic forces. The book also reviews the experimental literature on the types of spatial patterns of genetic variation found within and among populations. And it makes an unprecedented strong connection between observed measures of spatial patterns and those predicted theoretically. Along the way, it introduces readers to the mathematics of spatial statistics, applications to specific population genetic systems, and the relationship between the mathematics of space-time processes and the formal theory of geographical genetics. Written by a leading authority, this is the first comprehensive treatment of geographical genetics. It is a much-needed guide to the theory, techniques, and applications of a field that will play an increasingly important role in population biology and ecology.
Author: Ricard V. Solé
Publisher: Princeton University Press
ISBN: 0691070407
Category : Science
Languages : en
Pages : 391
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Book Description
Describing a theoretical view of ecosystems based on how they self-organise to produce complex patterns, this book focuses on very simple models that despite their simplicity encapsulate fundamental properties of how ecosystems work.
Author: Stephen D. Fretwell
Publisher: Princeton University Press
ISBN: 9780691081069
Category : Science
Languages : en
Pages : 252
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Book Description
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.
Author: Kamal J.K. Gandhi
Publisher: Academic Press
ISBN: 0128224401
Category : Science
Languages : en
Pages : 438
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Book Description
Bark Beetle Management, Ecology, and Climate Change provides the most updated and comprehensive knowledge on the complex effects of global warming upon the economically and ecologically important bark beetle species and their host trees. This authoritative reference synthesizes information on how forest disturbances and environmental changes due to current and future climate changes alter the ecology and management of bark beetles in forested landscapes. Written by international experts on bark beetle ecology, this book covers topics ranging from changes in bark beetle distributions and addition of novel hosts due to climate change, interactions of insects with altered host physiology and disturbance regimes, ecosystem-level impacts of bark beetle outbreaks due to climate change, multi-trophic changes mediated via climate change, and management of bark beetles in altered forests and climate conditions. Bark Beetle Management, Ecology, and Climate Change is an important resource for entomologists, as well as forest health specialists, policy makers, and conservationists who are interested in multi-faceted impacts of climate change on forest insects at the organismal, population, and community-levels. - The only book that addresses the impacts of global warming on bark beetles with feedback loops to forest patterns and processes - Discusses altered disturbance regimes due to climate change with implications for bark beetles and associated organisms - Led by a team of editors whose expertise includes entomology, pathology, ecology, forestry, modeling, and tree physiology
Author:
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Category : Climatic changes
Languages : en
Pages : 144
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Book Description
Author: Richard Levins
Publisher: Princeton University Press
ISBN: 9780691080628
Category : Science
Languages : en
Pages : 136
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Book Description
Professor Levins, one of the leading explorers in the field of integrated population biology, considers the mutual interpenetration and joint evolution of organism and environment, occurring on several levels at once. Physiological and behavioral adaptations to short-term fluctuations of the environment condition the responses of populations to long-term changes and geographic gradients. These in turn affect the way species divide the environments among themselves in communities, and, therefore, the numbers of species which can coexist. Environment is treated here abstractly as pattern: patchiness, variability, range, etc. Populations are studied in their patterns: local heterogeneity, geographic variability, faunistic diversity, etc.
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 252
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Book Description
This report comprises a study on the environment of Port Phillip Bay in Australia.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 320
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Book Description
Author: John A. Endler
Publisher: Princeton University Press
ISBN: 0691209510
Category : Science
Languages : en
Pages : 352
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Book Description
Natural selection is an immense and important subject, yet there have been few attempts to summarize its effects on natural populations, and fewer still which discuss the problems of working with natural selection in the wild. These are the purposes of John Endler's book. In it, he discusses the methods and problems involved in the demonstration and measurement of natural selection, presents the critical evidence for its existence, and places it in an evolutionary perspective. Professor Endler finds that there are a remarkable number of direct demonstrations of selection in a wide variety of animals and plants. The distribution of observed magnitudes of selection in natural populations is surprisingly broad, and it overlaps extensively the range of values found in artificial selection. He argues that the common assumption that selection is usually weak in natural populations is no longer tenable, but that natural selection is only one component of the process of evolution; natural selection can explain the change of frequencies of variants, but not their origins.
