Download or read book Morphological Homoplasy Life History Evolution and Historical Biogeography of Plethodontid Salamanders Inferred from Complete Mitochondrial Genomes written by and published by . This book was released on 2004 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The evolutionary history of the largest salamander family (Plethodontidae) is characterized by extreme morphological homoplasy. Analysis of the mechanisms generating such homoplasy requires an independent, molecular phylogeny. To this end, we sequenced 24 complete mitochondrial genomes (22 plethodontids and two outgroup taxa), added data for three species from GenBank, and performed partitioned and unpartitioned Bayesian, ML, and MP phylogenetic analyses. We explored four dataset partitioning strategies to account for evolutionary process heterogeneity among genes and codon positions, all of which yielded increased model likelihoods and decreased numbers of supported nodes in the topologies (PP> 0.95) relative to the unpartitioned analysis. Our phylogenetic analyses yielded congruent trees that contrast with the traditional morphology-based taxonomy; the monophyly of three out of four major groups is rejected. Reanalysis of current hypotheses in light of these new evolutionary relationships suggests that (1) a larval life history stage re-evolved from a direct-developing ancestor multiple times, (2) there is no phylogenetic support for the ''Out of Appalachia'' hypothesis of plethodontid origins, and (3) novel scenarios must be reconstructed for the convergent evolution of projectile tongues, reduction in toe number, and specialization for defensive tail loss. Some of these novel scenarios imply morphological transformation series that proceed in the opposite direction than was previously thought. In addition, they suggest surprising evolutionary lability in traits previously interpreted to be conservative.
Download or read book Genome Evolution Morphological Homoplasy and the Phylogeny of Plethodontid Salamanders written by Rachel Lockridge Mueller and published by . This book was released on 2005 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Deep Metazoan Phylogeny The Backbone of the Tree of Life written by J. Wolfgang Wägele and published by Walter de Gruyter. This book was released on 2014-02-27 with total page 764 pages. Available in PDF, EPUB and Kindle. Book excerpt: The growing success of molecular methods has challenged traditional views of animal evolution and a large number of alternative hypotheses are hotly debated today. For the deep metazoan phylogeny project, data sets of hitherto unmatched quality and quantity were compiled and analysed with innovative bioinformatics tools. The book begins at the base of the tree of life to discuss the origin of animals and early branches of the phylogenetic tree. The following section presents special data sets gained from mitochondrial genomes and from morphology, with a focus on nervous systems. The final section is dedicated to theoretical aspects of data analysis and new bioinformatics tools. The book closes with a unique general discussion of all hypotheses contained in previous chapters. This work provides the most comprehensive overview available of the state of the art in this exciting field of evolutionary research.
Download or read book Hormones and Life History Strategies written by Sarah Kelly McMenamin and published by Frontiers Media SA. This book was released on 2022-03-08 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Estimating Species Trees written by L. Lacey Knowles and published by John Wiley and Sons. This book was released on 2011-05-09 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent computational and modeling advances have produced methods for estimating species trees directly, avoiding the problems and limitations of the traditional phylogenetic paradigm where an estimated gene tree is equated with the history of species divergence. The overarching goal of the volume is to increase the visibility and use of these new methods by the entire phylogenetic community by specifically addressing several challenges: (i) firm understanding of the theoretical underpinnings of the methodology, (ii) empirical examples demonstrating the utility of the methodology as well as its limitations, and (iii) attention to technical aspects involved in the actual software implementation of the methodology. As such, this volume will not only be poised to become the quintessential guide to training the next generation of researchers, but it will also be instrumental in ushering in a new phylogenetic paradigm for the 21st century.
Download or read book Conceptual Change in Biology written by Alan C. Love and published by Springer. This book was released on 2014-11-07 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume explores questions about conceptual change from both scientific and philosophical viewpoints by analyzing the recent history of evolutionary developmental biology. It features revised papers that originated from the workshop "Conceptual Change in Biological Science: Evolutionary Developmental Biology, 1981-2011" held at the Max Planck Institute for the History of Science in Berlin in July 2010. The Preface has been written by Ron Amundson. In these papers, philosophers and biologists compare and contrast key concepts in evolutionary developmental biology and their development since the original, seminal Dahlem conference on evolution and development held in Berlin in 1981. Many of the original scientific participants from the 1981 conference are also contributors to this new volume and, in conjunction with other expert biologists and philosophers specializing on these topics, provide an authoritative, comprehensive view on the subject. Taken together, the papers supply novel perspectives on how and why the conceptual landscape has shifted and stabilized in particular ways, yielding insights into the dynamic epistemic changes that have occurred over the past three decades. This volume will appeal to philosophers of biology studying conceptual change, evolutionary developmental biologists focused on comprehending the genesis of their field and evaluating its future directions, and historians of biology examining this period when the intersection of ev olution and development rose again to prominence in biological science.
Download or read book Hearing and Sound Communication in Amphibians written by Peter M. Narins and published by Springer Science & Business Media. This book was released on 2006-12-11 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a compendium of the latest research on acoustic communication in these highly vocal vertebrates. The chapters are written by experts currently investigating the physiology and behavior of amphibians, in the laboratory and in the field. This integrated approach provides a neuroethologically-driven and evolutionary basis for our understanding of acoustic communication and its underlying mechanisms. The intended audience includes senior undergraduates, physiologists, zoologists, evolutionary biologists and communication specialists.
Download or read book Lineage Divergence and Species Formation in Plethodontid Salamanders written by Sean Michael Rovito and published by . This book was released on 2009 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Ecology and Behavior of Amphibians written by Kentwood D. Wells and published by University of Chicago Press. This book was released on 2010-02-15 with total page 1162 pages. Available in PDF, EPUB and Kindle. Book excerpt: Consisting of more than six thousand species, amphibians are more diverse than mammals and are found on every continent save Antarctica. Despite the abundance and diversity of these animals, many aspects of the biology of amphibians remain unstudied or misunderstood. The Ecology and Behavior of Amphibians aims to fill this gap in the literature on this remarkable taxon. It is a celebration of the diversity of amphibian life and the ecological and behavioral adaptations that have made it a successful component of terrestrial and aquatic ecosystems. Synthesizing seventy years of research on amphibian biology, Kentwood D. Wells addresses all major areas of inquiry, including phylogeny, classification, and morphology; aspects of physiological ecology such as water and temperature relations, respiration, metabolism, and energetics; movements and orientation; communication and social behavior; reproduction and parental care; ecology and behavior of amphibian larvae and ecological aspects of metamorphosis; ecological impact of predation on amphibian populations and antipredator defenses; and aspects of amphibian community ecology. With an eye towards modern concerns, The Ecology and Behavior of Amphibians concludes with a chapter devoted to amphibian conservation. An unprecedented scholarly contribution to amphibian biology, this book is eagerly anticipated among specialists.
Download or read book Aquaculture animal diseases Pathogens and control written by Haipeng Cao and published by Frontiers Media SA. This book was released on 2023-06-21 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the National Academy of Sciences of the United States of America written by National Academy of Sciences (U.S.). and published by . This book was released on 2004 with total page 1056 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bioenergy Resources and Technologies written by Abul Kalam Azad and published by Academic Press. This book was released on 2021-03-10 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioenergy Resources and Technologies presents advanced approaches and applications of bioenergy resources, with a strong focus on environmental sustainability. Chapters on the applications of bioenergy, the implementation of bioenergy as an alternative fuel, and future energy security make this an invaluable and unique resource to further advance the field. This book provides new information and novel techniques across a variety of bioenergy applications, with the book's authors addressing key uses for bioenergy resources as an alternative fuel. Various case studies and examples help demonstrate meaning and provide additional clarity. Social and economic aspects are included for each technology discussed, along with a number of research works and their findings in a diverse mix of areas including energy, environmental science, biotechnology, chemical engineering and mechanical engineering. Researchers and professionals in these disciplines will gain knowledge on the underlying concepts, technologies, fuel applications and solutions to global environmental issues using bioenergy resources. Presents technical and social issues surrounding the latest bioenergy technologies Explores solutions to global sustainability goals through bioenergy applications and the future of energy security Includes experimental investigations of engine performance, emissions and combustion phenomena using different types of oxygenated fuel
Download or read book Comparative Mitochondrial Genomics of the Nematoda written by Sha Tang and published by . This book was released on 2006 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Landscape Genetics and Phylogenetic Relationships in the Ambystoma Macrodactylum Species Complex written by Wesley Keith Savage and published by . This book was released on 2008 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evolutionary Biology from Concept to Application written by Pierre Pontarotti and published by Springer Science & Business Media. This book was released on 2008-06-20 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Every biological system is the outcome of its evolution; therefore, the deciphering of its evolutionary history is of tremendous importance to understand the biology of a system. Since 1997 scientists of different disciplines have held an annual "Evolutionary Biology Meeting" at Marseille (France) in order to discuss their research developments, exchange ideas and start collaborations. Consisting of the most representative talks of the 11th meeting, this book provides an up-to-date overview of evolutionary concepts and how these concepts can be applied to a better understanding of various biological aspects. It is divided into the following four parts: Modelization of Evolution - Concepts in Evolutionary Biology - Knowledge - Applied Evolutionary Biology. This book is an invaluable source of information not only for evolutionary biologists, but also for biologists in general.
Download or read book The American Naturalist written by and published by . This book was released on 2007 with total page 1140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by and published by . This book was released on 2007 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:
