Hybrid Zones And The Evolutionary Process
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Hybrid Zones And The Evolutionary Process
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Author : Richard Gerald Harrison
language : en
Publisher:
Release Date : 1993
Hybrid Zones And The Evolutionary Process written by Richard Gerald Harrison and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Nature categories.
Hybrid zones--geographical areas in which the hybrids of two races are found--have attracted the attention of evolutionary biologists for many years, both because they are windows on the evolutionary process and because the patterns of animals and plant variation seen in hybrid zones do not fit the traditional classification schemes of taxonomists. Hybrid zones provide insights into the nature of the species, the way barriers to gene exchange function, the genetic basis of those barriers, the dynamics of the speciation process. Hybrid Zones and the Evolutionary Process synthesizes the extensive research literature in this field and points to new directions in research. It will be read with interest by evolutionary biologists, geneticists, and biogeographers.
Epistasis And The Evolutionary Process
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Author : Jason B. Wolf
language : en
Publisher:
Release Date : 2000
Epistasis And The Evolutionary Process written by Jason B. Wolf and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Science categories.
Over the last two decades, research into epistasis has seen explosive growth and has moved the focus of research in evolutionary genetics from a traditional additive approach. We now know the effects of genes are rarely independent, and to reach a fuller understanding of the process of evolution we need to look at gene interactions as well as gene-environment interactions. This book is an overview of non-additive evolutionary genetics, integrating all work to date on all levels of evolutionary investigation of the importance of epistasis in the evolutionary process in general. It includes a historical perspective on this emerging field, in-depth discussion of terminology, discussions of the effects of epistasis at several different levels of biological organization and combinations of theoretical and experimental approaches to analysis.
Bird Species
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Author : Dieter Thomas Tietze
language : en
Publisher: Springer
Release Date : 2018-11-19
Bird Species written by Dieter Thomas Tietze and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-11-19 with Science categories.
The average person can name more bird species than they think, but do we really know what a bird “species” is? This open access book takes up several fascinating aspects of bird life to elucidate this basic concept in biology. From genetic and physiological basics to the phenomena of bird song and bird migration, it analyzes various interactions of birds – with their environment and other birds. Lastly, it shows imminent threats to birds in the Anthropocene, the era of global human impact. Although it seemed to be easy to define bird species, the advent of modern methods has challenged species definition and led to a multidisciplinary approach to classifying birds. One outstanding new toolbox comes with the more and more reasonably priced acquisition of whole-genome sequences that allow causative analyses of how bird species diversify. Speciation has reached a final stage when daughter species are reproductively isolated, but this stage is not easily detectable from the phenotype we observe. Culturally transmitted traits such as bird song seem to speed up speciation processes, while another behavioral trait, migration, helps birds to find food resources, and also coincides with higher chances of reaching new, inhabitable areas. In general, distribution is a major key to understanding speciation in birds. Examples of ecological speciation can be found in birds, and the constant interaction of birds with their biotic environment also contributes to evolutionary changes. In the Anthropocene, birds are confronted with rapid changes that are highly threatening for some species. Climate change forces birds to move their ranges, but may also disrupt well-established interactions between climate, vegetation, and food sources. This book brings together various disciplines involved in observing bird species come into existence, modify, and vanish. It is a rich resource for bird enthusiasts who want to understand various processes at the cutting edge of current research in more detail. At the same time it offers students the opportunity to see primarily unconnected, but booming big-data approaches such as genomics and biogeography meet in a topic of broad interest. Lastly, the book enables conservationists to better understand the uncertainties surrounding “species” as entities of protection.
Natural Hybridization And Evolution
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Author : Michael L. Arnold
language : en
Publisher: Oxford University Press
Release Date : 1997-01-30
Natural Hybridization And Evolution written by Michael L. Arnold and has been published by Oxford University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997-01-30 with Science categories.
This study draws on data from numerous sources that support the paradigm of natural hybridization as an important evolutionary process. The review of these data results in a challenge to the framework used by many evolutionary biologists, which sees the process of natural hybridization as maladaptive because it represents a violation of divergent evolution. In contrast, this book presents evidence of a significant role for natural hybridization in furthering adaptive evolution and evolutionary diversification in both plants and animals.
The International Encyclopedia Of Primatology 3 Volume Set
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Author : Agustín Fuentes
language : en
Publisher: John Wiley & Sons
Release Date : 2017-04-24
The International Encyclopedia Of Primatology 3 Volume Set written by Agustín Fuentes and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-04-24 with Social Science categories.
The International Encyclopedia of Primatology represents the first comprehensive encyclopedic reference focusing on the behaviour, biology, ecology, evolution, genetics, and taxonomy of human and non-human primates. Represents the first comprehensive encyclopedic reference relating to primatology Features more than 450 entries covering topics ranging from the taxonomy, history, behaviour, ecology, captive management and diseases of primates to their use in research, cognition, conservation, and representations in literature Includes coverage of the basic scientific concepts that underlie each topic, along with the latest advances in the field Highly accessible to undergraduate and graduate students in primatology, anthropology, and the medical, biological and zoological sciences Essential reference for academics, researchers and commercial and conservation organizations This work is also available as an online resource at www.encyclopediaofprimatology.com
Geographic Variation In Behavior
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Author : Susan A. Foster
language : en
Publisher: Oxford University Press
Release Date : 1999-03-04
Geographic Variation In Behavior written by Susan A. Foster and has been published by Oxford University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999-03-04 with Science categories.
Studies of animal behavior often assume that all members of a species exhibit the same behavior. Geographic Variation in Behavior shows that, on the contrary, there is substantional variation within species across a wide range of taxa. Including work from pioneers in the field, this volume provides a balanced overview of research on behavioral characteristics that vary geographically. The authors explore the mechanisms by which behavioral differences evolve and examine related methodological issues. Taken together, the work collected here demonstrates that genetically based geographic variation may be far more widespread than previously suspected. The book also shows how variation in behavior can illuminate both behavioral evolution and general evolutionary patterns. Unique among books on behavior in its emphasis on geographic variation, this volume is a valuable new resource for students and researchers in animal behavior and evolutionary biology.
The Ecology And Evolution Of Heliconius Butterflies
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Author : Chris D. Jiggins
language : en
Publisher: Oxford University Press
Release Date : 2017
The Ecology And Evolution Of Heliconius Butterflies written by Chris D. Jiggins and has been published by Oxford University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with Nature categories.
This is the first thorough and accessible treatment of the scientific literature on the ecology, genetics, and adaptive radiation of Heliconius butterflies: a classic model system in evolutionary biology.
Evolution Through Genetic Exchange
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Author : Michael L Arnold
language : en
Publisher: OUP Oxford
Release Date : 2006-07-27
Evolution Through Genetic Exchange written by Michael L Arnold and has been published by OUP Oxford this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-07-27 with Science categories.
Even before the publication of Darwin's Origin of Species, the perception of evolutionary change has been a tree-like pattern of diversification - with divergent branches spreading further and further from the trunk. In the only illustration of Darwin's treatise, branches large and small never reconnect. However, it is now evident that this view does not adequately encompass the richness of evolutionary pattern and process. Instead, the evolution of species from microbes to mammals builds like a web that crosses and re-crosses through genetic exchange, even as it grows outward from a point of origin. Some of the avenues for genetic exchange, for example introgression through sexual recombination versus lateral gene transfer mediated by transposable elements, are based on definably different molecular mechanisms. However, even such widely different genetic processes may result in similar effects on adaptations (either new or transferred), genome evolution, population genetics, and the evolutionary/ecological trajectory of organisms. For example, the evolution of novel adaptations (resulting from lateral gene transfer) leading to the flea-borne, deadly, causative agent of plague from a rarely-fatal, orally-transmitted, bacterial species is quite similar to the adaptations accrued from natural hybridization between annual sunflower species resulting in the formation of several new species. Thus, more and more data indicate that evolution has resulted in lineages consisting of mosaics of genes derived from different ancestors. It is therefore becoming increasingly clear that the tree is an inadequate metaphor of evolutionary change. In this book, Arnold promotes the 'web-of-life' metaphor as a more appropriate representation of evolutionary change in all lifeforms. This research level text is suitable for senior undergraduate and graduate level students taking related courses in departments of genetics, ecology and evolution. It will also be of relevance and use to professional evolutionary biologists and systematists seeking a comprehensive and authoritative overview of this rapidly expanding field.
The Biology Of Plethodontid Salamanders
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Author : Richard C. Bruce
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
The Biology Of Plethodontid Salamanders written by Richard C. Bruce and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
The fourth Conference on the Biology of Plethodontid Salamanders was held at "The Mountain," in Highlands, North Carolina on June 12-14, 1998. Hosted by the Highlands Biological Station, and sponsored by the Highlands Biological Foundation, Inc. , the conference afforded a state-of-the-art overview of these animals, as evidenced by the contents of the present volume and the credentials of the contributors. In the following pages, the reader will find the best current understanding of many aspects of plethodontid salamander evolution, systematics, development, morphology, life history, ecology, and field methodology. While the contents of this book consist of chapters developed from selected conference papers, their excellence is representative of the high overall quality of the conference presentations. The Highlands Biological Station is located on the Highlands Plateau in the southern Blue Ridge Mountains. As these mountains are a present center of plethod ontid diversity, and are considered by some to be the center of origin of the group, the Highlands Biological Station has historically been important in the study of these animals. A list of visitors to the Station for the last 70 years would include a "who's who" of twentieth century North American herpetologists. The location and amenities of the Highlands Biological Station are unique. Within the city limits of Highlands at an elevation of nearly 1200 meters, the Station includes modern research laboratories, administrative offices, library facilities, as well as dormitory and living facilities.
Endless Forms
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Author : Daniel J. Howard
language : en
Publisher:
Release Date : 1998
Endless Forms written by Daniel J. Howard and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Science categories.
Speciation is one of the great themes of evolutionary biology. It is the process through which new species are born and diversity generated. Yet for many years our understanding of the process consisted of little more than a perception that if populations are isolated geographically, they will diverge genetically and may come to form new species. This situation began to change in the 1960s as an increasing number of biologists challenged the exclusivity of allopatric speciation and began to probe more deeply into the actual process by which divergence occurs and reproductive isolation is acquired. This focus on process led to many new insights, but numerous questions remain and speciation is now one of the most dynamic areas of research in modern evolutionary biology. This volume presents the newest research findings on speciation bringing readers up to day on species concepts, modes of speciation, and the nature of reproductive barriers. It also discusses the forces that drive divergence of populations, the genetic control of reproductive isolation, and the role played by hybrid zones and hybridization in speciation.