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Natural Selection In The Wild Mpb 21 Volume 21
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Book Synopsis Natural Selection in the Wild. (MPB-21), Volume 21 by : John A. Endler
Download or read book Natural Selection in the Wild. (MPB-21), Volume 21 written by John A. Endler and published by Princeton University Press. This book was released on 2020-03-31 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Natural Selection in the Wild by : John A. Endler
Download or read book Natural Selection in the Wild written by John A. Endler and published by . This book was released on 1986 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Juris Zoology written by Geordie Duckler and published by Rowman & Littlefield. This book was released on 2022-03-14 with total page 281 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book exists at the intersection of two complementary and conflicting perspectives, law and biology. From the vantage point of both disciplines, Juris Zoology provides a comprehensive and realistic framework to objectively assess the role and significance of animals in American civil and criminal law. Contrasting the views of animal rights activists, Duckler examines animals in terms of their prehistory, history, biology, social utility, economic effect, and aesthetic value. Focusing on animal captivity, control, use, and value, Duckler refutes the proposal of granting animal's legal rights. The book offers a new and controversial voice to the national conversation on the propriety of animal rights, and would be of interest to lawyers, economists, sociologists, as well as scholars and professionals in animal-related fields.
Book Synopsis Theoretical Studies on Sex Ratio Evolution. (MPB-22), Volume 22 by : Samuel Karlin
Download or read book Theoretical Studies on Sex Ratio Evolution. (MPB-22), Volume 22 written by Samuel Karlin and published by Princeton University Press. This book was released on 2020-03-31 with total page 333 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with a key area of population genetics: the ratio of the sexes in a population, or the allocation of resources to male versus female reproductive function. Samuel Karlin and Sabin Lessard establish the formal theoretical aspects of the evolution of sex ratio within the constraints of genetic mechanisms of sex determination. Their results generalize and unify existing work on the topic, strengthening previous conceptions in some cases and, in other instances, offering new directions of research. There are two main approaches to understanding the causes and effects of sex ratio. One approach focuses on the optimization and adaptive functions of sex allocation, while the other emphasizes the consequences of genetic sex determination mechanisms. In discussing the utility of these two approaches, Professors Karlin and Lessard examine the principal sex-determining mechanisms and facts involved in sex ratio representations, the various genetic and environmental factors that contribute to adaptive sex expression, and the evolution of sex determining systems and controls. From a population genetic perspective, the authors derive evolutionary properties in support of the high incidence of 1:1 sex ratio in natural populations and investigate the conditions that can explain the occurrence of biased sex ratio.
Book Synopsis Population Ecology of Individuals. (MPB-25), Volume 25 by : Adam Lomnicki
Download or read book Population Ecology of Individuals. (MPB-25), Volume 25 written by Adam Lomnicki and published by Princeton University Press. This book was released on 2020-03-31 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: A common tendency in the field of population ecology has been to overlook individual differences by treating populations as homogeneous units; conversely, in behavioral ecology the tendency has been to concentrate on how individual behavior is shaped by evolutionary forces, but not on how this behavior affects population dynamics. Adam Lomnicki and others aim to remedy this one-sidedness by showing that the overall dynamical behavior of populations must ultimately be understood in terms of the behavior of individuals. Professor Lomnicki's wide-ranging presentation of this approach includes simple mathematical models aimed at describing both the origin and consequences of individual variation among plants and animals. The author contends that further progress in population ecology will require taking into account individual differences other than sex, age, and taxonomic affiliation--unequal access to resources, for instance. Population ecologists who adopt this viewpoint may discover new answers to classical questions of population ecology. Partly because it uses a variety of examples from many taxonomic groups, this work will appeal not only to population ecologists but to ecologists in general.
Book Synopsis A Hierarchical Concept of Ecosystems. (MPB-23), Volume 23 by : Robert V. O'Neill
Download or read book A Hierarchical Concept of Ecosystems. (MPB-23), Volume 23 written by Robert V. O'Neill and published by Princeton University Press. This book was released on 2021-09-14 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Ecosystem" is an intuitively appealing concept to most ecologists, but, in spite of its widespread use, the term remains diffuse and ambiguous. The authors of this book argue that previous attempts to define the concept have been derived from particular viewpoints to the exclusion of others equally possible. They offer instead a more general line of thought based on hierarchy theory. Their contribution should help to counteract the present separation of subdisciplines in ecology and to bring functional and population/community ecologists closer to a common approach. Developed as a way of understanding highly complex organized systems, hierarchy theory has at its center the idea that organization results from differences in process rates. To the authors the theory suggests an objective way of decomposing ecosystems into their component parts. The results thus obtained offer a rewarding method for integrating various schools of ecology.
Book Synopsis Population Ecology of the Cooperatively Breeding Acorn Woodpecker. (MPB-24), Volume 24 by : Walter D. Koenig
Download or read book Population Ecology of the Cooperatively Breeding Acorn Woodpecker. (MPB-24), Volume 24 written by Walter D. Koenig and published by Princeton University Press. This book was released on 2020-03-31 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ever since the acorn woodpecker was observed and described by Spanish explorers, its behavior--particularly the unique habit of caching acorns in specialized storage trees or granaries--has impressed observers. Acorn woodpeckers are also one of the few temperate zone species in which young are reared communally in family groups. This demographic study investigates the complexities of acorn storage and group living in acorn woodpeckers at Hastings Reservation in central coastal California. It is one of the most thorough studies of any avian social system to date.
Book Synopsis Population Harvesting (MPB-27), Volume 27 by : Wayne M. Getz
Download or read book Population Harvesting (MPB-27), Volume 27 written by Wayne M. Getz and published by Princeton University Press. This book was released on 2020-03-31 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: Whether in felling trees for wood, rearing insects for biological control, or culling animals for conservation purposes, efficient management of biological systems requires quantitative analysis of population growth and harvesting policies. Aiming to encourage the exchange of ideas among scientists involved in the management of fisheries, wildlife, forest stands, and pest control, the authors of this work present a general framework for modeling populations that reproduce seasonally and that have age or stage structure as an essential component of management strategy. The book represents the first time that examples from such diverse areas of biological resource management have been brought together in a unified modeling framework using the standard notation of mathematical systems theory. In addition, the authors combine a nonlinear extension of Leslie matrix theory and certain linear elements, thereby permitting interesting analytical results and the creation of compact, realistic simulation models of resource systems.
Book Synopsis Plant Strategies and the Dynamics and Structure of Plant Communities. (MPB-26), Volume 26 by : David Tilman
Download or read book Plant Strategies and the Dynamics and Structure of Plant Communities. (MPB-26), Volume 26 written by David Tilman and published by Princeton University Press. This book was released on 2020-03-31 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although ecologists have long considered morphology and life history to be important determinants of the distribution, abundance, and dynamics of plants in nature, this book contains the first theory to predict explicitly both the evolution of plant traits and the effects of these traits on plant community structure and dynamics. David Tilman focuses on the universal requirement of terrestrial plants for both below-ground and above-ground resources. The physical separation of these resources means that plants face an unavoidable tradeoff. To obtain a higher proportion of one resource, a plant must allocate more of its growth to the structures involved in its acquisition, and thus necessarily obtain a lower proportion of another resource. Professor Tilman presents a simple theory that includes this constraint and tradeoff, and uses the theory to explore the evolution of plant life histories and morphologies along productivity and disturbance gradients. The book shows that relative growth rate, which is predicted to be strongly influenced by a plant's proportional allocation to leaves, is a major determinant of the transient dynamics of competition. These dynamics may explain the differences between successions on poor versus rich soils and suggest that most field experiments performed to date have been of too short a duration to allow unambiguous interpretation of their results.
Book Synopsis The Florida Scrub Jay (MPB-20), Volume 20 by : Glen Everett Woolfenden
Download or read book The Florida Scrub Jay (MPB-20), Volume 20 written by Glen Everett Woolfenden and published by Princeton University Press. This book was released on 2020-03-31 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: Florida Scrub Jays are an excellent example of a cooperative-breeding species, in which adult birds often help raise offspring not their own. For more than a decade Glen E. Woolfenden and John W. Fitzpatrick studied a marked population of these birds in an attempt to establish a demographic base for understanding the phenomenon of "helping at the nest." By studying both population biology and behavior, the authors found that habitat restraints, rather than kin selection, are the main source of the behavior of Florida Scrub Jays: the goal of increasing the number of close relatives other than descendants in future generations is of relatively minor importance in their cooperative-breeding behavior. The Florida Scrub Jay lives only in the Florida oak scrub. All acceptable habitat is constantly filled with breeders. Each year about half of the pairs are assisted by one to several nonbreeding helpers. This book provides extensive data on fecundity, survivorship, relatedness, and dispersal to establish the demographic milieu and to address questions arising out of observed helping behavior--whom, how, when, and why the helpers help.
Download or read book Evolution by Natural Selection written by and published by . This book was released on 1971 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Natural Selection by : Joyce McCormick
Download or read book Natural Selection written by Joyce McCormick and published by . This book was released on 2017 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: If an organism isnt suited to survive in its environment, their genetic traits wont likely be passed on to the next generation. This is natural selection at work. Its survival of the fittest, and this book takes an in-depth look at why some organisms survive and thrive while others slowly die out. Elementary curricula and STEM concepts from the Next Generation Science Standards are covered in detail. Age-appropriate text and colorful images make this important life science topic easy for young readers to understand. Additionally, interactive features including videos, quizzes, scientist biographies, and more help extend the learning.
Download or read book Natural Selection written by and published by . This book was released on 1970 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecology Abstracts written by and published by . This book was released on 1988 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt: Indexes journal articles in ecology and environmental science. Nearly 700 journals are indexed in full or in part, and the database indexes literature published from 1982 to the present. Coverage includes habitats, food chains, erosion, land reclamation, resource and ecosystems management, modeling, climate, water resources, soil, and pollution.
Book Synopsis Geographic Variation, Speciation, and Clines by : John A. Endler
Download or read book Geographic Variation, Speciation, and Clines written by John A. Endler and published by Princeton University Press. This book was released on 1977-09-21 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Following a review of the diverse and scattered literature on gene flow and population differentiation, the author discusses the relationships among gene flow, dispersal, and migration. He then summarizes the factors which limit the geographic extent of gene flow, and those which allow steep clines to develop in the absence of barriers to gene flow. His analysis draws on examples from the field, experiments, and single- and multiple-locus models.
Download or read book Public Health Reports written by and published by . This book was released on 1962-07 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Process of Animal Domestication by : Marcelo Sánchez-Villagra
Download or read book The Process of Animal Domestication written by Marcelo Sánchez-Villagra and published by Princeton University Press. This book was released on 2022-01-18 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first modern scholarly synthesis of animal domestication Across the globe and at different times in the past millennia, the evolutionary history of domesticated animals has been greatly affected by the myriad, complex, and diverse interactions humans have had with the animals closest to them. The Process of Animal Domestication presents a broad synthesis of this subject, from the rich biology behind the initial stages of domestication to how the creation of breeds reflects cultural and societal transformations that have impacted the biosphere. Marcelo Sánchez-Villagra draws from a wide range of fields, including evolutionary biology, zooarchaeology, ethnology, genetics, developmental biology, and evolutionary morphology to provide a fresh perspective to this classic topic. Relying on various conceptual and technical tools, he examines the natural history of phenotypes and their developmental origins. He presents case studies involving mammals, birds, fish, and insect species, and he highlights the importance of domestication for the comprehension of evolution, anatomy, ontogeny, and dozens of fundamental biological processes. Bringing together the most current developments, The Process of Animal Domestication will interest a wide range of readers, from evolutionary biologists, developmental biologists, and geneticists to anthropologists and archaeologists.
