Download or read book Evolutionary Biology of Transient Unstable Populations written by Antonio Fontdevila and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: An overview of speciation theory reveals an increasingly held view that many events leading to the origin of new species occur in transient, unstable populations. A transient, unstable population should be under stood as a fast episodic phase in a population subjected to genetic and environmental factors that tend to disrupt its cohesive, balanced genome architecure, thus enhancing its probability to produce a new species. Striking the core of Darwinian thought, some authors claim that these· processes may be non-adaptive. Among the environmental factors one may cite biotic (e.g. resource availability) and abiotic (e.g. temperature) stress conditions that break up the population stability producing random, unpredictable changes in population size, population trait distribution, breeding structure, inter- and/or intrapopulational hybridization, etc. Genetic factors consist of those events that induce rapid changes in genetic expression and/or that determine reproductive isolation, such as substitutions, insertions, deletions, duplications, transpositions, gross chromosomal rearrangements, recombination and, in general, any mechanism that changes the regulatory pattern of the organism or the balance of its meiotic system. Both kinds of factors are often intertwined in a complex net and may influence each other.
Download or read book Evolutionary Biology of Transient Unstable Populations written by Antonio Fontdevila and published by . This book was released on 1989-10-31 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: The biology of transient, unstable populations form the evolutionary stage used to describe events leading to the origin of new species, which is the theme of the present analysis. This problem is approached from different perspectives, ranging from population genetics, population ecology and developmental biology to the molecular level of evolution. Covering these main disciplines involved in the elucidation of evolutionary mechanisms, the present volume bridges the gap between molecularly orientated evolutionists and population biologists. Readers will find a high quality, well balanced set of theoretical and experimental articles authored by leading researchers in the field of evolutionary biology.
Download or read book Biology of Inositols and Phosphoinositides written by A. Lahiri Majumder and published by Springer. This book was released on 2008-11-01 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sociobiology of Caviomorph Rodents written by Luis A. Ebensperger and published by John Wiley & Sons. This book was released on 2016-02-18 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fully integrative approach to the socibiology of caviomorph rodents Brings together research on social systems with that on epigenetic, neurendocrine and developmental mechanisms of social behavior Describes the social systems of many previously understudied caviomorph species, identifying the fitness costs and benefits of social living in current day populations as well as quantified evolutionary patterns or trends Highlights potential parallels and differences with other animal models
Download or read book Experimental Evolution written by Theodore Garland and published by Univ of California Press. This book was released on 2009-12-03 with total page 750 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental approaches to evolution provide indisputable evidence of evolution by directly observing the process at work. Experimental evolution deliberately duplicates evolutionary processes—forcing life histories to evolve, producing adaptations to stressful environmental conditions, and generating lineage splitting to create incipient species. This unique volume summarizes studies in experimental evolution, outlining current techniques and applications, and presenting the field’s full range of research—from selection in the laboratory to the manipulation of populations in the wild. It provides work on such key biological problems as the evolution of Darwinian fitness, sexual reproduction, life history, athletic performance, and learning.
Download or read book Molecular Techniques in Taxonomy written by Godfrey M. Hewitt and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: Taxonomy is fundamental to understanding the variety of life forms, and exciting expansions in molecular biology are re- volutionising the obtained data. This volume reviews the ma- jor molecular biological techniques that are applied in ta- xonomy. The chapters are arranged in three main sections:1) Overviews of important topics in molecular taxonomy; 2) Case studies of the successful application of molecular methods to taxonomic and evolutionary questions; 3) Protocols for a range of generally applicable methods. The described techni- ques include DNA-DNA hybridization, DNA fingerprinting, RFLP analysis, and PCR sequencing.
Download or read book Transposable Elements and Evolution written by J. F. McDonald and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the summer of 1992 a distinguished group of molecular, population and evolutionary geneticists assembled on the campus of the University of Georgia in Athens, USA to discuss the relevance of their research to the role played by transposable elements (TEs) in evolution. The meeting consisted of a series of informal discussions of issues brought up in papers written by the participants and distributed among them prior to the meeting. These papers and the transcripts of the ensuing discussions are presented in this volume.
Download or read book Macroecology written by James H. Brown and published by University of Chicago Press. This book was released on 1995-06 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Macroecology, James H. Brown proposes a radical new research agenda designed to broaden the scope of ecology to encompass vast geographical areas and very long time spans. While much ecological research is narrowly focused and experimental, providing detailed information that cannot be used to generalize from one ecological community or time period to another, macroecology draws on data from many disciplines to create a less detailed but much broader picture with greater potential for generalization. Integrating data from ecology, systematics, evolutionary biology, paleobiology, and biogeography to investigate problems that could only be addressed on a much smaller scale by traditional approaches, macroecology provides a richer, more complete understanding of how patterns of life have moved across the earth over time. Brown also demonstrates the advantages of macroecology for conservation, showing how it allows scientists to look beyond endangered species and ecological communities to consider the long history and large geographic scale of human impacts. An important reassessment of the direction of ecology by one of the most influential thinkers in the field, this work will shape future research in ecology and other disciplines. "This approach may well mark a major new turn in the road in the history of ecology, and I find it extremely exciting. The scope of Macroecology is tremendous and the book makes use of its author's exceptionally broad experience and knowledge. An excellent and important book."—Lawrence R. Heaney, Center for Environmental and Evolutionary Biology, the Field Museum
Download or read book Evolution of the Rodents written by Philip G. Cox and published by Cambridge University Press. This book was released on 2015-08-06 with total page 627 pages. Available in PDF, EPUB and Kindle. Book excerpt: A valuable resource for the latest research on rodents, highlighting links across palaeontology, developmental biology, functional morphology, phylogenetics and biomechanics.
Download or read book Tuco Tucos written by Thales Renato Ochotorena de Freitas and published by Springer Nature. This book was released on 2021-03-21 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines the biology of tuco-tucos (Ctenomys) from an evolutionary perspective. Historically, these subterranean rodents have long attracted the attention of scientists due to its remarkable chromosomes variability and rapid diversification. A wealth of knowledge on physiology, ecology, genetics, morphology, paleontology, and taxonomy has been documented in the last 70 years through numerous single publications. In this volume, expert investigators review and frame these essays with the breadth of current understanding. The collection of chapters are presented into the major topics: i) Evolution of Ctenomys, ii) Geographic Patterns, iii) Organismal Biology, and iv) Environmental Relationships. Given its scope, the book will be of interest to both students and researchers and may stimulate further research with this exciting model on a wide range of evolutionary topics.
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1990 with total page 886 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Current Catalog written by National Library of Medicine (U.S.) and published by . This book was released on with total page 1024 pages. Available in PDF, EPUB and Kindle. Book excerpt: First multi-year cumulation covers six years: 1965-70.
Download or read book National Library of Medicine Current Catalog written by National Library of Medicine (U.S.) and published by . This book was released on 1990 with total page 1032 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chromosomes Today written by N. Henriquez-Gil 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: Chromosomes Today Volume 12 records the plenary proceedings of the 12th triennial International Chromosone Conference, presenting an overview of the current concerns in the developing studies of animal, plant and human cytogenetics. As well as giving an accurate historical record of the achievements in chromosome studies, this important series points the way forword, emphasizing the areas in which new developments will take place. Volume 12 explores the complete integration of molecular biology and cytogenetics, evaluating the concensus of the world's cytogeneticists concerning the nature and activities of the chromosome.It reinforces our view of the chromosome as the genetic organelle whose structure, behaviour and modification underlie our modern concept ofeukaryote genetics.
Download or read book Molecular Evolution written by Vadim A. Ratner and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 439 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1970, Manfred Eigen initiated the study of the origin of self-reproducing systems of macromolecules and their evolution. Large-scale nucleotide sequencing (with computer methods) was introduced from 1977. The authors of this book, the first edition of which appeared (in Russian) in 1985, have been engaged in the research of the evolution of molecular genetic regulatory systems ever since those pioneering years. The book considers many fundamental problems of molecular biology, evolution, molecular genetic organization, the structure and function of macromolecules, always with the underlying motive of developing a unified theory. It describes many original, theoretical results as well as computational methods.
Download or read book Plant Resistance to Herbivores and Pathogens written by Robert S. Fritz and published by University of Chicago Press. This book was released on 2012-07-15 with total page 601 pages. Available in PDF, EPUB and Kindle. Book excerpt: Far from being passive elements in the landscape, plants have developed many sophisticated chemical and mechanical means of deterring organisms that seek to prey on them. This volume draws together research from ecology, evolution, agronomy, and plant pathology to produce an ecological genetics perspective on plant resistance in both natural and agricultural systems. By emphasizing the ecological and evolutionary basis of resistance, the book makes an important contribution to the study of how phytophages and plants coevolve. Plant Resistance to Herbivores and Pathogens not only reviews the literature pertaining to plant resistance from a number of traditionally separate fields but also examines significant questions that will drive future research. Among the topics explored are selection for resistance in plants and for virulence in phytophages; methods for studying natural variation in plant resistance; the factors that maintain intraspecific variation in resistance; and the ecological consequences of within-population genetic variation for herbivorous insects and fungal pathogens. "A comprehensive review of the theory and information on a large, rapidly growing, and important subject."—Douglas J. Futuyma, State University of New York, Stony Brook
Download or read book Molecular Biology written by H D Kumar and published by Vikas Publishing House. This book was released on 2000 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book is a choice selection of exciting topics in molecular biology organized in a logical sequence starting with a historical and biochemical background, progressing through the structure and functions of nucleic acids, the role of nucleic acids in protein synthesis (including transcription and translation of genetic information) and culminating in a concise account of our current knowledge about genes and genomes.
