Across the Afrotropical and Malagasy regions, ants are one of the most conspicuous and ecologically dominant animal groups. From driver ants to weaver ants, there are over 2,000 species in Africa alone and over 600 in Madagascar. Ants of Africa and Madagascar introduces readers to the fascinating and diverse ant fauna of the Afrotropical and Malagasy regions. Featuring illustrated keys to subfamilies, separate keys to Afrotropical and Malagasy ant genera, and distribution maps, it also describes diagnostic characters, explores ant ecology and natural history, and includes a list of all currently recognized ant species in the regions. This detailed guide is an essential tool for entomologists and myrmecologists working with and learning about this diverse population of Formicidae.

Nematodes are incontestably the most numerous and the most diverse metazoans in freshwater habitats, and these properties bestow exceptional significance to their role in the environment. An array of functional roles has been attributed to them: they are grazers on bacteria and primary producers, regulators of decomposition of plant material, predators, prey for other animals, and closely associated symbionts of bacteria and other organisms. Freshwater nematodes are central in the context of environmental monitoring, pollution assessments, global warming and food webs, and this is increasingly being recognized. Moreover, the short generation time (a few days to months) of many species makes nematodes ideal for laboratory studies. This book: Provides a follow-up to Freshwater Nematodes: Ecology and Taxonomy (2006). Offers guidelines for studying the ecology of free-living nematodes, including detailed protocols and case studies. Promotes free-living nematodes as model organisms for studies in a broad range of research fields. Despite the recognized importance of nematodes across ecosystems, many species of free-living nematodes have yet to be discovered, and essential knowledge gaps remain. Ecology of Freshwater Nematodes provides an overview of research efforts in this field, and is an important resource for researchers in the field of nematology and ecology.

The history of biological control of harmful organisms by mites is marked by outstanding achievements with a few premiere natural enemies. Early works concentrated on the use of predatory mites for the control of synanthropic flies, More recently, the focus has been mostly on mites of the family Phytoseiidae for the control of plant feeding mites. This is an important family of acarine predators of plant pest mites, which are effectively used in agriculture worldwide. Besides the vast knowledge in several species in this family, there are as well many opportunities for biological control, represented in an array of organisms and through the improvement of management techniques, which are constantly explored by researchers worldwide. This has resulted in an increasing interest in predatory mite species within the families Stigmaeidae, Ascidae, Laelapidae, Rhodacaroidea, Macrochelidae, Erythraeidae and Cheyletidae, among others. This book will compile important developments with predatory mite species within these families, which are emerging as important tools for integrated pest management. New developments with predatory insects and pathogenic organisms attacking mites will also be a subject of this book. Finally, the potential and gaps in knowledge in biological control of acarine plant pests will be addressed.

This atlas contains 189 coloured images taken from transversal, horizontal and sagittal sections of eleven organisms widely used in university teaching. Six invertebrate and five vertebrate species – from the nematode worm (Ascaris suum) to mammals (Rattus norvegicus) – are shown in detailed images. Studying the macrosections with unaided eyes, with a simple magnifier or binocular microscope might be of great help to accomplish traditional anatomical studies and to establish a certain spatial experience/space perception. This volume will be of great interest for biology students, researchers and teachers of comparative anatomy. It might act as supporting material of practical courses. Furthermore, medical practitioners, agricultural specialists and researchers having an interest in comparative anatomy might also benefit from it.

The first soil survey in the Philippines was done by Mr. Clarence Dorsey, an American soil scientist in the province of Batangas in 1903. The Soils of the Philippines, however, is the first comprehensive summary of more than a century of soil-survey work in this country. It integrates the soil concepts of the reconnaissance soil-survey results, which commenced as early as 1934 and continued until the mid 1960s, with the semi-detailed soil surveys that continue to this day. The result is the first-ever genetic key for classifying Philippine soils at soil series level; thus, making it possible for any newcomers to the soil survey field to confidently produce their own soil map, at a more detailed map scale, to suit the project requirements. This book brings together discussions on soils and soil mapping units and up-to-date international techniques and technologies. It makes soils relevant to current political realities and national issues. As soil survey moves from a reductionist agricultural-development planning tool to a more holistic and integrated approach, to enable us to understand our dynamic and complex environment, The Soils of the Philippines will be the only source of authoritative and updated data on soil resources for macro-level resource management planning for decades to come. With a vanishing breed of experienced soil surveyors, not only in the Philippines but also worldwide, it may remain the only book on Philippine soils for the next hundred years or more. Since soils follow a geological and not a human time frame, the contents of this volume will stay relevant for soil surveyors even in a fast changing world. As the country leaps from an agricultural economy towards modernization and a more diversified economic base, some of the soil series in the Philippines, for example the Guadalupe series underlying the skyscrapers of Makati City, are becoming extinct as a result of urban development. Therefore, this book serves as the repository for the soils that we possess, the soils that have been lost through decades of urbanization while, at the same time, it creates a soil classification system for the soils we are yet to discover.

Three major aspects that distinguish this book are that (1) it contains the most detailed analysis of the sexual reproduction (oogenesis, fertilization and embryonic incubation) in a particular phylum of the aquatic invertebrates (Bryozoa) ever made; this analysis is based on an exhaustive review of the literature on that topic published over the last 260 years, as well as extensive original histological, anatomical and morphological data obtained during studies of both extant and extinct species; (2) this broad analysis has made it possible to reconstruct the major patterns, stages and trends in the evolution of sexual reproduction in various bryozoan clades, showing numerous examples of parallelisms during transitions from broadcasting to embryonic incubation, from planktotrophic to non-feeding larvae and from lecithotrophy to placentation; corresponding shifts in oogenesis, fertilization and embryonic development are discussed in detail; and (3) the key evolutionary novelties acquired by Bryozoa are compared with similar innovations that have evolved in other groups of marine invertebrates, showing the general trends in the evolution of their sexual reproduction. Ecological background of these innovations is considered too. Altogether these aspects make the monograph an “Encyclopedia of bryozoan sexual reproduction,� offering an integral picture of the evolution of this complex phenomenon.

The book focuses on four broad topics related to trapping of agriculturally important tephritid fruit flies, namely i) lures and traps, ii) invasion biology and detection of infestations, iii) attract and kill systems, and iv) trade regulations and risk assessment. This comprehensive structure progresses from the biological interaction between insect and lures/traps to the area-wide use of trapping systems to the utilization and impact of trapping data on international trade. The chapters include accounts of earlier research but are not simply compendia and instead evaluate past and current work as a tool for critical analysis and proposal of productive avenues for future work. At present there is no book available that deals with fruit fly trapping in such a broad context. Our book fills this gap and serves as a global reference for both those interested in fruit flies specifically as well as anyone dealing with the threat of invasive agricultural insects in general.

This entry in the series Pediatric Cancer offers comprehensive information on a variety of cancers, concentrating on brain tumors, the most common solid tumors and the leading cause of cancer-related mortality in children. The contents are organized in seven sections: Neuroblastoma, Medulloblastoma, Leukemia, Lymphoma, Rhabdoid, Sarcoma and Miscellaneous Tumors. Coverage includes pediatric medulloblastoma, and treatments including craniospinal radiation followed by adjuvant chemotherapy. The contributors explain diagnosis and chemotherapy of children with acute lymphoblastic leukemia, and diagnosis of bone marrow involvement in pediatric lymphoma patients. Ewing's sarcoma, a highly malignant connective tissue neoplasm formed by the proliferation of mesenchymal cells, receives extensive coverage, including targeting of molecular pathways and chemotherapy and surgical treatment. The roles of apoptotic genes, MYCN gene, MDM2, and SNP309, P13K inhibitors, alternative splicing and microRNAs, activated leukocyte cell adhesion molecule and inhibition by alu-like RNA in neuroblastoma are discussed in detail. The book explores the molecular genetics, diagnosis, prognosis and therapy of the atypical teratoid/rhabdoid tumor (AT/RT). Among the most common malignant neoplasms in children, AT/RT exhibits similarities with other CNS tumors, which can lead to misclassification, as pointed out in the book. The contributors discuss diagnosis of AT/RT type using imaging technology, and describe new strategies, including intensive multimodal therapy and high dose chemotherapy with autologous stem cell transplantation that have shown improved outcomes. Coverage of therapies includes total resection followed by aggressive chemotherapy and radiation. Discussion includes diagnosis and treatment of other pediatric tumors including adrenocortical tumors, supratentorial primitive neuroectodermal tumors, giant midline tumors, gastrointestinal stromal tumors, ependymomas and intramedullary cavernoma. Pediatric Cancer: Diagnosis, Therapy and Prognosis, Volume 4 includes contributions by ninety-one contributors - oncologists, neurosurgeons, physicians, research scientists and pathologists - representing thirteen countries. The editor, M.A. Hayat, is a Distinguished Professor in the Department of Biological Sciences at Kean University, Union, New Jersey, USA.

More than two thirds of all living organisms described to date belong to the phylum Arthropoda. But their diversity, as measured in terms of species number, is also accompanied by an amazing disparity in terms of body form, developmental processes, and adaptations to every inhabitable place on Earth, from the deepest marine abysses to the earth surface and the air. The Arthropoda also include one of the most fashionable and extensively studied of all model organisms, the fruit-fly, whose name is not only linked forever to Mendelian and population genetics, but has more recently come back to centre stage as one of the most important and more extensively investigated models in developmental genetics. This approach has completely changed our appreciation of some of the most characteristic traits of arthropods as are the origin and evolution of segments, their regional and individual specialization, and the origin and evolution of the appendages. At approximately the same time as developmental genetics was eventually turning into the major agent in the birth of evolutionary developmental biology (evo-devo), molecular phylogenetics was challenging the traditional views on arthropod phylogeny, including the relationships among the four major groups: insects, crustaceans, myriapods, and chelicerates. In the meantime, palaeontology was revealing an amazing number of extinct forms that on the one side have contributed to a radical revisitation of arthropod phylogeny, but on the other have provided evidence of a previously unexpected disparity of arthropod and arthropod-like forms that often challenge a clear-cut delimitation of the phylum.

This volume describes the various applications of entomopathogenic soil microorganisms in the management and control of the devastating lepidopteran pest. An introduction describes the insecticidal properties of viruses, bacteria, fungi, nematodes and their metabolites, as well as their applications in the context of crop improvement. Subsequent chapters focus on topics such as insecticidal proteins; the role of nucleopolyhedroviruses; Bt toxins and their receptors; control of lepidopterans using entomopathogenic fungi; management of cotton defoliators; and sustainable use of entomopathogenic nematodes and their bacterial symbionts. An overview of culture collections of entomopathogenic microorganisms rounds out the volume.

The major objective of this book is to highlight the significance of phytonematodes in horticulture. Detailed and latest information on major aspects of phytonematodes associated exclusively with horticultural crops, which is the need of the day, is lacking. Hence, the book has been written mainly with the objective of providing its readers, comprehensive information on the advanced aspects related to phytonematodes associated with horticultural crops. It also provides basic information on plant parasitic nematodes since it is required for a better understanding of advanced topics. Several popular topics, information on which is already available in plenty, have been avoided. Thus, book explicates both the essential fundamental and advanced aspects pertaining to nematodes associated with horticultural crops. The book is conveniently divided into 13 chapters, which cover latest information on  the  major fundamental and advanced aspects related to phytonematodes including the role of phytonematodes in horticultural industry, phylogenetic and evolutionary concepts in nematodes, major phytonematodes associated with horticultural crops and their diagnostic keys,  symptoms caused by phytonematodes and disease diagnosis, nematode population threshold levels, crop loss assessment, nematode diseases of horticultural crops and their management, nematode disease complexes, genetics of nematode parasitism, important nematological techniques and nematodes of quarantine importance. An exclusive chapter on novel methods of nematode management has been included mainly to provide the information on the latest molecules and novel modes of managing nematodes attacking horticultural crops. Routine nematode management aspects, information on which is already available, have not been discussed; instead, this topic reflects the changing scenario of future nematode management. Hence, this book can serve as a friendly guide to meet the requirements of the students, teachers and  researchers interested in these ‘hidden enemies’ of the grower, apart from the research and extension personnel working under Public organizations, officials of State departments of Horticulture, Forestry, field workers and all those concerned and working with plant parasitic nematodes. Appropriate diagrams, convincing tables and suitable graphs/illustrations have been furnished at right places. A complete bibliography has also been included.

A global synthesis of the impacts of wildfires and controlled burning on insects, bringing together much hitherto scattered information to provide a guide to improved conservation management practice. The great variety of responses by insect species and assemblages demonstrates the often subtle balance between fire being a severe threat and a vital management component. Examples from many parts of the world and from diverse biotopes and production systems display the increasingly detailed appreciation of fire impacts on insects in terrestrial and freshwater environments and the ways in which prescribed burning may be tailored to reduce harmful ecological impacts and incorporated into protocols for threatened species and wider insect conservation benefits.

Written in easy to follow language, the book presents cutting-edge agriculturally relevant plant biotechnologies and applications in a manner that is accessible to all. This book introduces the scope and method of plant biotechnologies and molecular breeding within the context of environmental analysis and assessment, a diminishing supply of productive arable land, scarce water resources and climate change. Authors who have studied how agro ecosystems have changed during the first decade and a half of commercial deployment review effects and stress needs that must be considered to make these tools sustainable.

This work, a sequel to Honeybees and Wax published nearly 30 years ago, starts with a brief introduction and discussion of nesting sites, their spaces and densities, self-organization of nest contents, and interspecific utilization of beeswax. The following chapters cover communication by vibrations and scents and wax secretion, and discuss the queen in relation to the combs. Discussions on completed nests include the significance of brood, the roles of pollen and nectar flow, and comb-building, and are followed by a triad of related chapters on the construction of cells and combs and their energetic costs. An in-depth examination of the conversion of wax scales into combs, the material properties of scale and comb waxes, and the wax gland complex are presented. The next chapters are devoted to a comprehensive analysis of the literature on the chemistry and synthesis of beeswax, and, finally, the material properties of honeybee silk are highlighted.

Learn all about the world of spiders in this complete and comprehensive guide, filled with stunning facts, beautiful photography and diagrams to help you understand everything you ever needed to know about arachnids! Bark spiders spin webs ten times stronger than Kevlar. Jumping spiders are capable of learning, recognizing, and remembering colours. Recluse spiders can tolerate six months of extreme drought and have a toxin-laden bite that can necessitate skin grafts. These are just some of the many amazing facts which you will discover in Spiders of the World, the perfect guide to one of natures most fascinating and varied creatures. This title explores the huge diversity of spider species and their fascinating traits. An introduction outlining the spider's natural history is followed by 117 illustrated profiles spanning the taxonomic spider families. Beautiful close-up photographs of species from each family are shown, along with population distribution maps, tables of essential information, and commentaries revealing notable characteristics. The family profiles are also organized phylogenetically, and the commentaries in each account reflect different aspects of a spider's biology.

The present work deals with the diseases of nematodes. Although the term disease implies a pathological condition brought about by an infectious agent, a broader concept is used here.

The first section of the book includes information about how tourism-related infrastructure and activities promote biological invasions, including key pathways for non-native invasive species introductions. This section provides case studies of different organisms that are known to be introduced and/or promoted by tourism in different ecosystems or regions. The second section elaborates on known and potential impacts of invasive species on tourism and recreation, including how they may affect, positively or negatively, the economic revenue from tourism, tourist access, recreation, aesthetic values and tourists' perceptions. The last section focuses on management and policy, covering aspects of how visitors perceive invasive species and their willingness to manage them, biosecurity measures to prevent invasion related to tourism, as well as potential policy options moving forward. The book draws on a number of examples across multiple taxa, landscapes and regions of the world.

Bees are flying insects of the order Hymenoptera closely related to wasps and ants. The ancestors of bees are assumed to be predatory wasps, which switched to pollen consumption. Further, bees co-evolved with flowering plants and divided into several species according to climatic conditions. Widely known bees are western bees Apis mellifera, and eastern bees Apis cerana. This book sheds light on features of evolution, phylogenesis, speciation, adaptation to environment, and taxonomy of bees. It will be of particular relevance to evolutionists, geneticists, taxonomists, ecologists, population geneticist, and breeders.

About 95 per cent of all known animal species are invertebrates. A knowledge of their sexual, reproductive, and developmental biology is essential for the effective management of species that are economically useful to man or are harmful to him, his crops, and livestock. This treatise is the first to cover all aspects of reproduction and development of the entire spectrum of invertebrates -- terrestrial, marine, freshwater, brackish-water, free-living, and parasitic. The chapters, by leading world experts in their fields, are up-to-date and informative, and suggest a number of problems for future research. Asexual Propagation and Reproductive Strategies, issued in two parts, is the sixth volume in the series. Part A: Porifera through Mollusca Contents Series Preface; Preface to Volume VI; Systematic Resume of the Invertebrates; Porifera, Paul E. Fell; Cnidaria, Stanley Shostak; Platyhelminthes-Turbellaria, Mario Benazzi and Giuseppina Benazzi Lentati; Platyhelminthes-Trematoda, Roy M. Anderson; Platyhelminthes-Eucestoda, Larry S. Roberts and C. R. Kennedy; Mesozoa, Bayard H. McConnaughey; Rotifera, John J. Gilbert; Gastrotricha, M. R. Hummon and W. D. Hummon; Acanthocephala, C. R. Kennedy; Sipuncula, Mary E. Rice and John F. Pilger, Mollusca, N. W. Runham; Species Index; Subject Index. Part B: Annelida-Clitellata through Cephalochordata Contents Series Preface; Preface to Volume VI; Systematic Resume of the Invertebrates; Annelida-Clitellata, B. Christensen; Tardigrada, Roberto Bertolani; Arthropoda-Crustacea, T. J. Pandian; Arthropoda-lnsecta, J. Muthukrishnan; Pentastomida, J. Riley; Bryozoa Entoprocta, C. Nielsen; Brachiopoda, S. H. Chuang; Chaetognatha, A. Alvarino; Echinodermata: Asexual Propagation, Philip V. Mladenov and R. D. Burke; Hemichordata, J. A. Petersen; Cephalochordata, Jaypaul Azariah; Species Index; Subject Index.

This book is a snapshot of the current state of the art of research and development on the properties and characteristics of silk and their use in medicine and industry. The field encompasses backyard silk production from ancient time to industrial methods in the modern era and includes an example of efforts to maintain silk production on Madagascar. Once revered as worth its weight in gold, silk has captured the imagination from its mythical origins onwards. The latest methods in molecular biology have opened new descriptions of the underlying properties of silk. Advances in technological innovation have created silk production by microbes as the latest breakthrough in the saga of silk research and development. The application of silk to biomaterials is now very active on the basis of excellent properties of silks including recombinant silks for biomaterials and the accumulated structural information.

James Lowen narrates a year-long quest to see Britain's rarest and more remarkable moths. Although mostly unseen by us, moths are everywhere. And their capacity to delight astounds. Inspired by a revelatory encounter with a Poplar Hawk-moth - a huge, velvety-winged wonder wrapped in silver - James Lowen embarks on a year-long quest to celebrate the joy of Britain's rarest and most remarkable moths. By hiking up mountains, wading through marshes and roaming by night amid ancient woodlands, James follows the trails of both Victorian collectors and present-day conservationists. Seeking to understand why they and many ordinary folk love what the general public purports to hate, his investigations reveal a heady world of criminality and controversy, derring-do and determination. From Cornwall to the Cairngorms, James explores British landscapes to coax these much-maligned creatures out from the cover of darkness and into the light. Moths are revealed to be attractive, astonishing and approachable; capable of migratory feats and camouflage mastery, moths have much to tell us on the state of the nation's wild and not-so-wild habitats. As a counterweight to his travels, James and his young daughter track the seasons through a kaleidoscope of moth species living innocently yet covertly in their suburban garden. Without even leaving home, they bond over a shared joy in the uncommon beauty of common creatures, for perhaps the greatest virtue of moths, we learn, is their accessibility. Moths may be everywhere, but above all, they are here. Quite unexpectedly, no animals may be better placed to inspire the environmentalists of the future.

Recent research has focused attention on the importance of intrinsic antiviral immunity, i.e. immunity mediated by factors that are constitutively expressed in many cells. In this volume, leading experts provide a comprehensive overview of this relatively new and rapidly evolving field. They cover intrinsic proteinaceous antiviral immune effectors, such as the APOBEC3 and TRIM protein families as well as Tetherin and SAMHD1, which were initially discovered by researchers studying HIV-1. Furthermore, the role of RNA interference in antiviral defense in plants and invertebrates, as well as the interplay between microRNAs and viruses in mammalian cells, are analysed. One chapter discusses how intrinsic immunity and viral countermeasures to intrinsic immune effectors drive both pathogen and host evolution, and finally the emerging evidence that DNA damage response proteins restrict infection by DNA viruses is highlighted.

This volume provides a comprehensive selection of recent studies addressing insect hearing and acoustic communication. The variety of signalling behaviours and hearing organs makes insects highly suitable animals for exploring and analysing signal generation and hearing in the context of neural processing, ecology, evolution and genetics. Across a variety of hearing species like moths, crickets, bush-crickets, grasshoppers, cicadas and flies, the leading researchers in the field cover recent scientific progress and address key points in current research, such as: - How can we approach the evolution of hearing in insects and what is the developmental and neural origin of the auditory organs? - How are hearing and sound production embedded in the natural lifestyle of the animals, allowing intraspecific communication but also predator avoidance and even predation? - What are the functional properties of hearing organs and how are they achieved at the molecular, biophysical and neural levels? - What are the neural mechanisms of central auditory processing and signal generation? The book is intended for students and researchers both inside and outside of the fascinating field of bioacoustics and aims to foster understanding of hearing and acoustic communication in insects.