Vegetation, soil and climate are the most important components of ecological systems. This long-awaited fourth edition of the well-established textbook by Heinrich Walter summarizes our knowledge of the earth's ecology and constitutes the basis for a deeper understanding of the larger interrelations on a global scale.While Walter's general concept remains unchanged, the individual chapters have been completely revised, enlarged and updated. The author's intimate knowledge of practically all classes of plants and climatic zones allows him to describe the various ecological systems in close detail.This richly illustrated textbook is a must for every student in the plant sciences.

There is increasing evidence that branching processes in nature proceed by similar mechanisms in many seemingly different systems. This is the first comprehensive book dealing with this topic - it encompasses all fields of science, investigating branching morphogenesis and pattern formation in cells, plants, organs and river networks to name but a few. Renowned international researchers have contributed to this volume and taken care that the lectures remain accessible to graduate students and nonspecialist researchers.

This book is a thorough re-examination of the "species problem", the continuing disagreement among biologists about how best to identify species and what constitutes useful and genuine biological divisions of groups and organisms. This book contributes to our understanding of the scientific issues related to the species concept through an exploration of the reality of biological diversity and of the mental processes behind the ways we recognize species, and how we establish typological categories generally. The text develops a theory of evolutionary groups (groups of DNAs that compete and share in genetic drift and adaptation), and revisits the major issues of modern phylogeny, systematics, and evolutionary biology through this framework.

Historically, naturalists who propose theories of evolution, including Darwin and Wallace, have done so in order to explain the apparent relationship of natural classification. This book begins by exploring the intimate historical relationship between patterns of classification and patterns of phylogeny. It is a circular argument, however, to use the data for classification and the concept of homology as evidence for evolution, when evolution is the theory explaining the phenomenon of natural classification. Alec Panchen presents other evidence for evolution in the form of a historically-based but rigorously logical argument. This is then followed by a history of methods of classification and phylogeny reconstruction including current mathematical and molecular techniques. The author makes the important claim that if the hierarchical pattern of classification is a real phenomenon, then biology is unique as a science in making taxonomic statements. This conclusion is reached by way of historical reviews of theories of evolutionary mechanism and the philosophy of science as applied to biology.

Does the inheritance of acquired characteristics play a significant role in evolution? In this book, Eva Jablonka and Marion J. Lamb attempt to answer that question with an original, provocative exploration of the nature and origin of hereditary variations. Starting with a historical account of Lamarck's ideas and the reasons they have fallen in disrepute, the authors go on to challenge the prevailing assumption that all heritable variation is random and the result of variation in DNA base sequences. They also detail recent breakthroughs in our understanding of the molecular mechanisms underlying inheritance--including several pathways not envisioned by classical population genetics--and argue that these advances need to be more fully incorporated into mainstream evolutionary theory. Throughout, the book offers a new look at the evidence for and against the hereditability of environmentally induced changes, and addresses timely questions about the importance of non-Mendelian inheritance. A glossary and extensive list of references round out the book. Urging a reconsideration of the present DNA-centric view prevalent in the field, Epigentic Inheritance and Evolution will make fascinating and important reading for students and researchers in evolution, genetics, ecology, molecular biology, developmental biology, and the history and philosophy of science.

"Biological Systematics" provides a critical overview of the state of the art in biological systematics and presents a broad perspective of the subject, covering its history, theory and practice. The most improtant current theoretical issues are reviewed with the emphasis on the species concept, the methodology of phylogenetic reconstruction and contrasting views on the relationships between phylogenetics and systematics. A large part of the book is devoted to a review of the current state of taxonomy of the main groups, concluding with a discussion of evolutionary patterns.

This book examines the relationship between classification and evolutionary theory, with reference to the competing schools of taxonomic thinking. Emphasis is placed on one of these schools, the transformed cladists, who have attempted to reject all evolutionary thinking in classification and to cast doubt on evolution in general. The author examines the limits to this line of thought from a philosophical and methodological perspective rather than from a biological viewpoint. He concludes that transformed cladistics does not achieve what it claims and that it either implicity assumes a Platonic World View, or is unintelligible without taking into account evolutionary processes - the very processes it claims to reject. Through this analysis the author attempts to formulate criteria, of an objective and consistent nature, that can be used to judge competing methodologies and theories without resorting to any particular theoretical standpoint for justification. Philosophers of science, zoologists interested in taxonomy and evolutionary biologists will find this a compelling study of an area of biological thought that has been attracting a great deal of attention.

The mysterious world of fungi is once again unearthed in this expansive second edition. This textbook provides readers with an all-embracing view of the kingdom fungi, ranging in scope from ecology and evolution, diversity and taxonomy, cell biology and biochemistry, to genetics and genomics, biotechnology and bioinformatics. Adopting a unique systems biology approach - and using explanatory figures and colour illustrations - the authors emphasise the diverse interactions between fungi and other organisms. They outline how recent advances in molecular techniques and computational biology have fundamentally changed our understanding of fungal biology, and have updated chapters and references throughout the book in light of this. This is a fascinating and accessible guide, which will appeal to a broad readership - from aspiring mycologists at undergraduate and graduate level to those studying related disciplines. Online resources are hosted on a complementary website.

In the last ten years, the "comparative method" has been revolutionized by modern statistical ways of incorporating phylogenies into the design and analysis of comparative studies. The results of this revolution are particularly important in the study of animal behavior, which has relied on interspecific comparisons to infer universal trends and evolutionary patterns. The chapters of this edited volume consider the impact of modern phylogenetic comparative methods on the study of animal behavior and discuss the main issues that need to be considered in design and analysis of a comparative study, considers possible differences between the evolution of behavior and the evolution of morphology, and reviews how phylogenetic comparative studies have been used in certain areas of behavioral research.

Rapid developments continue to take place in the research of viruses, the causative agents of infectious diseases in humans, animals, plants, invertebrates, protozoa, fungi, and bacteria. A still growing number of more than 30,000 viruses, virus strains, and subtypes are being tracked in various specialty laboratories and culture collections. In this situation of expansion and specialization, the International Committee on Taxonomy of Viruses was founded to establish, refine and maintain a universal virus taxonomy system giving information to virologists about the characteristics of the different groups of viruses. The Committee s Sixth Report includes one order, 71 families, 11 subfamilies, and 175 genera and more than 4,000 member viruses. On 600 printed pages large amounts of molecular biologic data, illustrated by micrographs and virion diagrams, gene maps and tables give a comprehensive overview and prove helpful in teaching, in diagnostics, in scholarly research, and in the practical areas of medicine, veterinary medicine, plant pathology, insect pest management, and biotechnology. ..". est une reference indispensable pour les chercheurs, les enseignants, les medecins ou les veterinaires mais aussi pour les etudiants et d une maniere generale pour toutes les personnes interessees par la virologie . Revue de Medecine Veterinaire ..". an excellent, well presented and informative volume. The report should be an essential reference volume for any department or organization involved in the study of viruses . Quarterly"

Although more than 12 years have passed since publication of the first WHO histological classification of central nervous system (CNS) tumours, the changes in this revised edition are not radical. Only one formerly recognized entity has been deleted: the monstrocellular sarcoma, because there is immuno- cytochemical evidence of its astrocytic nature. Several new tumour types have been added: the pleomorphic xanthoastro- cytoma has been generally acknowledged for almost a decade; the neurocytoma has gradually evolved as a clinical-pathological entity; and two new entries, the dysembryoplastic neuroepi- thelial tumour and the desmoplastic infantile ganglioglioma, have only been characterized morphologically during the past few years. We regard the classification as an international standard to facilitate communication and have tried to avoid current con- ceptual controversies. The majority of partiCipants supported inclusion of the term "primitive neuroectodermal tumour" (pNET). However, because of our limited knowledge of the biol- ogy of embryonal CNS tumours, preference was given to use PNET selectively, rather than applying it to all small cell embryo- nal childhood tumours, irrespective of their histological pheno- type. Ependymomas and meningiomas now have new histological SUbtypes. Most of these are not associated with biological behaviour different from the parent tumour type, but their description will aid the practising pathologist to identify and classify these lesions. 2 Introduction Histological Typing Following the philosophy of this WHO series, classification is based primarily on histological assessment of cell types and tis- sue patterns recognized by conventional light microscopy.

Pollen and spores are ubiquitous, and preserve exceptionally well. This, and their enormous structural diversity, offers exceptional opportunities for integrating findings from studies of both recent and fossil material, and for developing new insights into the pathways and processes of diversification. This volume brings together both international authorities and younger researchers who have developed novel approaches from such diverse fields as paleobotany, ontogeny, molecular biology, and systematics. Three main issues are discussed: the evidence provided by the fossil record, the contribution of ontogenetic data, and the methods of systematic analysis. Of special interest are the sections detailing the most recent findings regarding fossil angiosperms and ontogeny in primitive angiosperms. The information provided will be of great interest and relevance to such disparate disciplines as vegetational history, geology, plant taxonomy and plant evolution.

Leaf beetles are one of the largest groups of beetles, with tens of thousands of species worldwide and around 280 in Britain. They belong mainly to the family Chrysomelidae, but also to two small closely related families, the Megalopodidae and Orsodacnidae. This book provides a comprehensive overview with detailed and accessible coverage of the natural history, ecology and biology of leaf beetles. Topics cover the life history of leaf beetles, biology, their environment, natural enemies and interactions with humans. There is a thorough discussion about identification of British species, including detail on the juvenile stages (eggs, larvae, pupae) and a concise key to adults. A chapter is dedicated to study techniques and materials. The book is illustrated throughout with colour photographs and line drawings. Leaf beetles is a vital resource for entomology students and educators, naturalists, nature conservationists, those involved in agriculture, horticulture and the management of stored produce.

The dynamic aspect of biological systems--the birth, growth, and death of individual organisms, the evolution of one form into another over time--has formed the basis for metaphors used in many fields for both artistic and heuristic purposes. Cladistic classification uses a tree whose branch points are based on the possession of derived or relatively recent characteristics, rather than primitive ones.

This balanced, comprehensive account traces the alterations in body form that insects undergo as they adapt to seasonal change, exploring both theoretical aspects and practical issues, such as the impact of seasonality on insect pest management.

Band XIa enthAlt allgemeine Kapitel zur Systematik, Klassifikation, Ethnobotanik, Phytochemie und Chemotaxonomie der Leguminosen. Die allgemeinen chemischen Kapitel sind familiencharakteristischen PrimAr- und SekundArstoffen und einigen aus der Familie bisher eher sporadisch bekannt gewordenen Stoffklassen gewidmet. Insgesamt enthAlt dieser Band A1/4ber 2000 Literaturhinweise. Hegnauers Chemotaxonomie ist ein unentbehrliches Handbuch fA1/4r alle naturwissenschaftlichen Disziplinen, die sich mit dem Chemismus der Pflanze - auch ausserhalb botanisch-systematischer Fragen - befassen. Text und Literaturhinweise geben gemeinsam ein Bild unseres gegenwArtigen Wissensstandes von den Stoffwechseleigenarten der behandelten Pflanzensippen. Die Ergebnisse der Naturstoffchemie, der vergleichenden Phytochemie und der Biogeneseforschung werden zum Aufbau einer systematischen Chemie der Pflanzen, also einer mit Stoffwechselmerkmalen arbeitenden Hilfs-wissenschaft der systematischen Botanik, verwendet. Der auf zwei TeilbAnde angelegte Band XI dieses Standardwerkes beleuchtet die Relevanz der Inhaltsstoffe der Leguminosen fA1/4r die Fachgebiete der Systematik, Physiologie, Agrarwissenschaften, Pharmazie, Toxikologie, Medizin, A-kologie und Ethnobotanik. Mit Band XIa der Chemotaxonomie der Pflanzen liegt ein unverzichtbares Arbeitsmittel und Nachschlagewerk vor fA1/4r alle, deren Interesse den Leguminosen gilt. Es richtet sich A1/4ber den Kreis der Pflanzentaxonomen, Pflanzenphysiologen und Naturstoffchemiker hinaus an PflanzenAkologen, Agrar- und ErnAhrungswissenschaftler sowie Arzneimittelforscher. Die kosmopolitische Familie der Leguminosen, zu der neben zahlreichen Nahrungs- und Futterpflanzen vieleweitere wirtschaftlich bedeutende Kultur- und Zierpflanzen gehAren, umfasst etwa 600 Gattungen beziehungsweise 13'000 Arten.

"One of the most substantial and scholarly counterattacks against creationism to date....The myths which creationists present to the public as historical fact are systematically debunked....This carefully chosen collection should appeal to informed general readers"--Library Journal. "One of the strongest, most enlightened sources for understanding the present dispute and its dangerous portents"--Kirkus Reviews. In this volume, Stephen Jay Gould, Isaac Asimov, and others provide a powerful rebuttal to "Creation Science," and offer insights into the teaching of science.

As an introduction to the present book I would like to explain how it was, that I, a commercial nurseryman, became so keenly interested in Conifers and their nomen clature. In August 1924 the Dutch Dendrological Society was founded and at the same time a Committee for Nomenclature of woody plants was set up and I served on this committee as one of the members. Our first activity was to bring the catalogues of the various leading nurserymen in the Netherlands into line with the International Rules of Botanical Nomenclature and also to check their nursery stock. Formerly these catalogues had shown a rather confused nomenclature, nurserymen having usually made use of a variety of inconsistent books as guides in compiling their catalogues. In the course of the work a close co-operation between scientific and practical workers developed. Although I had also fully contributed to the correct naming of hardy shrubs and perennials, 1 was most interested in Conifers. I had tried out several species, had grown a wide choice of garden forms and selected types of particular merit for propagation. My special love for Conifers lead to the publication of my Name-list of Conifers (1937), which was adopted as a standard for varietal names at the International Horticultural Congress in Berlin (1938). Later I prepared my book 'Coniferen, Ephedra en Ginkgo' in the Dutch language (1949); compiling the Conifers cultivated or known to be grown in the Netherlands and Belgium at that time."

Understanding plant anatomy is not only fundamental to the study of plant systematics and palaeobotany, but is also an essential part of evolutionary biology, physiology, ecology and the rapidly expanding science of developmental genetics. This modernised new edition covers all aspects of comparative plant structure and development, arranged in a series of chapters on the stem, root, leaf, flower, pollen, seed and fruit. Internal structures are described using magnification aids from the simple hand-lens to the electron microscope. Numerous references to recent topical literature are included, and new illustrations reflect a wide range of flowering plant species. The phylogenetic context of plant names has been updated as a result of improved understanding of the relationships among flowering plants. This clearly written text is ideal for students studying a wide range of courses in botany and plant science, and is also an excellent resource for professional and amateur horticulturists.

DNA Barcoding has been promoted since 2003 as a new, fast, digital genomics-based means of identifying natural species based on the idea that a small standard fragment of any organism s genome (a so-called micro-genome ) can faithfully identify and help to classify every species on the planet. The fear that species are becoming extinct before they have ever been known fuels barcoders, and the speed, scope, economy and user-friendliness claimed for DNA barcoding, as part of the larger ferment around the genomics revolution, has also encouraged promises that it could inspire humanity to reverse its biodiversity-destructive habits.

This book is based on six years of ethnographic research on changing practices in the identification and classification of natural species. Informed both by Science and Technology Studies (STS) and the anthropology of science, the authors analyse DNA barcoding in the context of a sense of crisis concerning global biodiversity loss, but also the felt inadequacy of taxonomic science to address such loss. The authors chart the specific changes that this innovation is propelling in the collecting, organizing, analyzing, and archiving of biological specimens and biodiversity data. As they do so they highlight the many questions, ambiguities and contradictions that accompany the quest to create a genomics-based environmental technoscience dedicated to biodiversity protection. They ask what it might mean to recognise ambiguity, contradiction, and excess more publicly as a constitutive part of this and other genomic technosciences.

"Barcoding Nature" will be of interest to students and scholars of sociology of science, science and technology studies, politics of the environment, genomics and post-genomics, philosophy and history of biology, and the anthropology of science.

This beautifully illustrated glossary constitutes an extraordinary collection of the specialist terms used in many botanical works. The book is arranged in two sections: the glossary, which provides clear definitions for over 2400 of the most commonly used botanical and horticultural terms, and illustrations, which can be cross-referenced to the glossary. The illustrations section comprises over 120 large format pages packed with accurate, well labelled line drawings that complement the definitions. The illustrations are grouped according to specific features, allowing quick comparisons of different forms. This outstanding reference will be welcomed by all readers grappling with botanical terms, whether student, professional, or hobbyist.

In an age when biodiversity is being lost at an unprecedented rate, it is vital that floristic and faunistic information is up to date, reliable and easily accessible for the formulation of effective conservation strategies. Electronic data management and communication are transforming descriptive taxonomy radically, enhancing both the collection and dissemination of crucial data on biodiversity. This volume is written by scientists at the forefront of current developments of floras and faunas, along with specialists from applied user groups. The chapters review novel methods of research, development and dissemination, which aim to maximise the relevance and impact of data. Regional case studies are used to illustrate the outputs and impacts of taxonomic research. Integrated approaches are presented which have the capacity to accelerate the production of floras and faunas and to better serve the needs of a widening audience.

This book is an extended argument for abandoning the species rank. Instead, the author proposes that the rank of "species" be replaced by a pluralistic and multi-level view. In such a view, all clades including the smallest identifiable one would be named and studied within a phylogenetic context. What are currently called "species" represent different sorts of things depending on the sort of organisms and processes being considered. This is already the case, but is not formally recognized by those scientists using the species rank in their work. Adopting a rankless taxonomy at all levels would enhance academic studies of evolution and ecology and yield practical benefits in areas of public concern such as conservation. The Open Access version of this book, available at http://www.taylorfrancis.com/books/e/9781498714549, has been made available under a Creative Commons Attribution-Non Commercial license. KEY FEATURES * Proposes the replacement of restrictive species concepts with a pluralistic view * Suggests abandoning the formal taxonomic rank of "species" * Considers zoological, botanical, and microbiological aspects of the species level * Deals with practical issues such as conservation, inventories, and field guides

Biologists and laypeople alike have repeatedly claimed victory over life. A thousand years ago we thought we knew almost everything, a hundred years ago, too. But even today, Rob Dunn argues, discoveries we can't yet imagine still await us. More is unknown than known, whether about our bodies or the bottom of the sea.

In a series of vivid portraits of scientists as interesting as the mysteries they chase, Dunn introduces the reader to breakthroughs that have changed the world and others that might still. With poetry and humor, Dunn reminds readers how tough and exhilarating it is to study the natural world, and why it matters.