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Books > Science & Mathematics > Biology, life sciences > Zoology & animal sciences > Invertebrates > General

Eriophyoid Mites: Progress and Prognoses (Hardcover, 2010 ed.): Edward A. Ueckermann Eriophyoid Mites: Progress and Prognoses (Hardcover, 2010 ed.)
Edward A. Ueckermann
R5,739 R4,327 Discovery Miles 43 270 Save R1,412 (25%) Ships in 12 - 17 working days

Fourteen informative papers dealing with their DNA, species interactions, adventiveness, host specificity, potential as boi-contol agents of weeds, chemical control, behaviour, their role in fungal pathogen epidemiology, influence in forests and on ornamentals, collecting and mounting techniques and their interaction with crops are presented here. This is an extensive and valuable contribution to eriophyoid science and a must for present and future researchers in this field.

Cephalopod Culture (Hardcover, 2014): Jose Iglesias, Lidia Fuentes, Roger Villanueva Cephalopod Culture (Hardcover, 2014)
Jose Iglesias, Lidia Fuentes, Roger Villanueva
R5,535 R4,968 Discovery Miles 49 680 Save R567 (10%) Ships in 12 - 17 working days

"Cephalopod Culture "is the first compilation of research on the culture of cephalopods. It describes experiences of culturing different groups of cephalopods: nautiluses, sepioids ("Sepia officinalis," "Sepia pharaonis," "Sepiella"" inermis," "Sepiella japonica"" Euprymna hyllebergi," "Euprymna tasmanica"), squids ("Loligo" "vulgaris," "Doryteuthis opalescens," " Sepioteuthis"" lessoniana") and octopods ("Amphioctopus aegina," "Enteroctopus megalocyathus," "Octopus maya," "Octopus"" mimus," "Octopus minor," "Octopus vulgaris," "Robsonella fontaniana"). It also includes the main conclusions which have been drawn from the research and the future challenges in this field. This makes this book not only an ideal introduction to cephalopod culture, but also a valuable resource for those already involved in this topic.

Illustrations of the Linnaean Genera of Insects; v.2 (1821) (Hardcover): W (William) 1774-1857 Wood, Pri Richard and Arthur... Illustrations of the Linnaean Genera of Insects; v.2 (1821) (Hardcover)
W (William) 1774-1857 Wood, Pri Richard and Arthur Taylor (Firm)
R857 Discovery Miles 8 570 Ships in 12 - 17 working days
Bemisia: Bionomics and Management of a Global Pest (Hardcover, 2010 Ed.): Philip A. Stansly, Steven E. Naranjo Bemisia: Bionomics and Management of a Global Pest (Hardcover, 2010 Ed.)
Philip A. Stansly, Steven E. Naranjo
R5,555 Discovery Miles 55 550 Ships in 10 - 15 working days

Bemisia tabaci (Gennedius) has distinguished itself from the more than 1,000 whitefly species in the world by its adaptability, persistence and potential to damage a wide range of agricultural and horticultural crops in all six of the world s inhabited continents. B. tabaci inflicts plant damage through direct feeding, inducement of plant disorders, vectoring of plant viruses and excretion of honeydew. This book collates multiple aspects of the pest ranging from basic to applied science and molecular to landscape levels of investigation. Experts in multiple disciplines provide broad, but detailed summaries and discussion of taxonomy, genetics, anatomy, morphology, physiology, behavior, ecology, symbiotic relationships, virus vector associations and various tactics for integrated management of this pest insect. The book is focused primarily on progress during the last 10-15 years and is directed at workers in the field as well as the informed professional who may not necessarily specialize in whitefly research. The book is unique in providing broad coverage in relatively few chapters by recognized experts that highlight the state-of-the-art in our understanding of this fascinating but troublesome cosmopolitan pest."

Orientation and Communication in Arthropods (Hardcover, 1997 ed.): Miriam Lehrer Orientation and Communication in Arthropods (Hardcover, 1997 ed.)
Miriam Lehrer
R5,509 Discovery Miles 55 090 Ships in 10 - 15 working days

The present volume deals with the most fascinating aspects of sensory performance studied in insects, crustaceans and spiders. Arthropods inhabit practically every conceivable ecological niche, and are perfectly adapted to cope with the constraints of their natural habitats. They move on the ground, in water, and in the air. They use visual, olfactory, acoustical, vibratory, and tactile cues for orientation, to recognize and pinpoint their target, their home place, a feeding site, a prey, or a potential mate. Many arthropods use celestial (skylight) and terrestrial (magnetic) compass cues for orientation, and some of them were shown to develop, through experience, oriented behaviours based on a variety of innate, hard-wired orientation mechanisms. In many cases, aspects of behaviour that are involved in orientation cannot be separated from inter- and intraspecific communication. The book brings to the fore the role of communication not only in social and sexual behaviours, but also in the context of oriented locomotion. Top, internationally renowned scientists have contributed to this volume and have succeeded in presenting a book full of highlights which will be of great interest to workers in this field of research. With contributions by F. G. Barth; D. von Helverson, K.-E. Kaissling, W. Kirchner, M. Walker, M. Weissburg, R. Campan, T. Collett, J. Zeil, K. Kirschfeld, R. Wehner, M. Srinivasan, M. Lehrer, R. Gadagkar.

Functional Biology of Sea Anemones (Hardcover): J.M. Shick Functional Biology of Sea Anemones (Hardcover)
J.M. Shick
R2,419 Discovery Miles 24 190 Ships in 12 - 17 working days

Sea anemones are among the most ancient of living metazoans. Long a paradigm of the "elementary nervous system" and constructional simplicity, sea anemones have been favourite experimental subjects in behavioural neurophysiology and in biomechanics. Their unique nematocyst toxins are used to study the sodium and calcium channels in excitable membranes, and their agonistic interactions provide insights into the evolution of allororecognition systems. Incorporation of algal endosymbionts by some of these animals combines in a single unit both primary producer and consumer, and provides a tight recycling of scarce nutrients between host and symbiont. Many species include vegetative proliferation or parthogenesis in their life cycle and are important organisms in the study of the evolutionary potential and adaptive demography of co-ordinated clonal growth and bisexual reproductive strategies. The ability of clonal anemones to recognize members of different clones upon contact provides insight into the evolution of immune systems. This book provides an introduction and synthesis of the biology of sea anemones. The text is cross-referenced and integrated, and together with a bibliography, should be valuable to those interested in the physiology, ecology, biochemistry, behaviour, population biology and evolution of this group of marine invertebrates. This book should be of interest to marine biologists, ecologists and zoologists with a general interest in themes such as symbiosis and life cycles.

Vector Biology, Ecology and Control (Hardcover, 2010 ed.): Peter W. Atkinson Vector Biology, Ecology and Control (Hardcover, 2010 ed.)
Peter W. Atkinson
R4,262 Discovery Miles 42 620 Ships in 10 - 15 working days

Mir S. Mulla joined the faculty of the Entomology Department at the University of California, Riverside in 1956, only two years after the Riverside campus was established as an independent campus within the University of California system. Prior to his appointment, Mir received his B.S. from Cornell University and then moved to the University of California, Berkeley to pursue his graduate studies. His Ph.D. from Berkeley, awarded in 1955, completed his formal American education which was the purpose of his immigration from his native Kandahar in Afghanistan. In his over 50 years at Riverside, Mir has made an incalculable impact on vector biology both within the United States and in developing countries throughout the world. Within Southern California, Mir's basic and applied research led to the rapid and sustainable control of mosquitoes and eye gnats in the Coachella Valley and so directly enabled this region to grow to the thriving, large community it is today. In 2006 his efforts in facilitating the development of the low desert of southern California were recognized through the dedication of the Mir S. Mulla Biological Control Facility by the Coachella Valley Mosquito and Vector Control District. His success has been so profound that it remains somewhat cryptic to the many who now reside in, visit, and enjoy, this region of California, oblivious to the insect problems that severely restrained development until Mir and his students ?rst applied their expertise many decades ago.

Rotifera VII - Proceedings of the Seventh Rofifer Symposium, held in Miko?ajki, Poland, 6-11 June 1994 (Hardcover, Reprinted... Rotifera VII - Proceedings of the Seventh Rofifer Symposium, held in Miko?ajki, Poland, 6-11 June 1994 (Hardcover, Reprinted from HYDROBIOLOGIA 313/314, 1996)
J.Ejsmont- Karabin, R.M. Pontin
R5,555 Discovery Miles 55 550 Ships in 10 - 15 working days

The Proceedings of the Seventh International Rotifer Symposium, Rotifera VII, spans subjects from community ecology through biochemistry, from the most basic science through the most clearly applied technology. Some papers report exceptional progress in our knowledge of rotifer anatomy and biochemistry, as well as rotifer molecular biology, evolution and life histories. The book also contains an interesting article describing a hundred years of Polish contributions to rotiferology as well as papers discussing both general patterns of rotifer biogeography and rotifer distribution in different habitats, together with many aspects of the ecology of rotifer species, populations and communities. Audience: This update on rotifer taxonomy, biology and ecology will be of great interest to zoologists, especially hydrobiologists studying the structure and function of freshwater zooplankton.

Horticultural Nematology (Hardcover, 2014 ed.): N.G. Ravichandra Horticultural Nematology (Hardcover, 2014 ed.)
N.G. Ravichandra
R5,525 R4,957 Discovery Miles 49 570 Save R568 (10%) Ships in 12 - 17 working days

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.

Meiobenthology - The Microscopic Motile Fauna of Aquatic Sediments (Hardcover, 2nd ed. 2009): Olav Giere Meiobenthology - The Microscopic Motile Fauna of Aquatic Sediments (Hardcover, 2nd ed. 2009)
Olav Giere
R5,531 Discovery Miles 55 310 Ships in 10 - 15 working days

Meiobenthology is the science of the tiny animals that live in huge numbers in all aquatic sediments. This fully revised and enlarged second edition emphasizes new discoveries and developments in this field. Major progress has been made in three general areas: - Systematics, diversity and distribution, - Ecology, food webs, and energy flow, - Environmental aspects, including studies of anthropogenic impacts.

The meiobenthos of polar and tropical regions, deep-sea bottoms and hydrothermal vents are now studied in more detail. The high number of species found to survive under such extreme conditions puts them at the forefront of biodiversity studies. Molecular screening methods enable large numbers to be analyzed upon applying reasonable effort. The aim of this book is to synthesize these modern scientific achievements such that meiobenthology can play a key role in aquatic research and in assessing the health of our environment.

Aquatic Invasions in the Black, Caspian, and Mediterranean Seas (Hardcover): Henri J. Dumont, Tamara A. Shiganova, Ulrich... Aquatic Invasions in the Black, Caspian, and Mediterranean Seas (Hardcover)
Henri J. Dumont, Tamara A. Shiganova, Ulrich Niermann
R4,328 Discovery Miles 43 280 Ships in 12 - 17 working days

The Mediterranean, Black, and Caspian Seas, the rivers and canals that connect them, and the enormous volume of shipping in the region, represent a conduit for aquatic invasion, whose consequences are only now beginning to be understood. This book provides an up-to-date overview of jelly invasions in the Ponto-Caspian which have affected local ecosystems since the early 1980s, contrasting that with other biological invasions, in search of underlying principles.

Praying Mantis (Paperback): Tamra B Orr Praying Mantis (Paperback)
Tamra B Orr
R293 R240 Discovery Miles 2 400 Save R53 (18%) Ships in 10 - 15 working days
11 (Hardcover): Andreas Schmidt-Rhaesa 11 (Hardcover)
Andreas Schmidt-Rhaesa; Contributions by Iben Heiner Bang-Berthelsen, Reinhardt Kristensen, Andreas Maas, Birger Neuhaus
R7,760 Discovery Miles 77 600 Ships in 12 - 17 working days

This section of the Handbook of Zoology is intended as a comprehensive and exhaustive account of the biology of the taxa Gastrotricha, Nematoda, Nematomorpha, Priapulida, Kinorhyncha, Loricifera, Gnathostomulida, Micrognathozoa, Rotifera, Seisonida and Acanthocephala, covering all relevant topics such as morphology, ecology, phylogeny and diversity. The series is intended to be a detailed and up-to-date account of these taxa. As was the case with the first edition, the Handbook is intended to serve as a reliable resource for decades. Many of the taxa of this volume are comparatively unknown to many biologists, despite their diversity and importance for example in meiofaunal communities (Gastrotricha, Rotifera, Gnathostomulida), their fascinating recent discoveries (Loricifera and Micrognathozoa), their importance as parasites (many nematodes, Nematomorpha, Acanthocephala) and their importance for evolutionary questions (e.g. Priapulida, Gastrotricha). The groups covered range from those poor in species (such as Micrognathozoa with 2 known species) to the species-rich and diverse Nematoda and their ca. 20.000 described species. While each taxon is covered by one chapter, nematodes are treated in several chapters dedicated to their structural, taxonomic and ecological diversity.

Illustrations of British Entomology; or, A Synopsis of Indigenous Insects - Containing Their Generic and Specific Distinctions;... Illustrations of British Entomology; or, A Synopsis of Indigenous Insects - Containing Their Generic and Specific Distinctions; v. 11 (Mandibulata v. 7) (1835) (Hardcover)
James Francis 1792-1853 Stephens
R865 Discovery Miles 8 650 Ships in 12 - 17 working days
Planipennia - Lacewings (Hardcover, Reprint 2014): Timothy R New Planipennia - Lacewings (Hardcover, Reprint 2014)
Timothy R New
R6,771 Discovery Miles 67 710 Ships in 12 - 17 working days

Covering 100 years of zoological research, the Handbook of Zoology represents a vast store of knowledge. Handbook of Zoology provides an in-depth treatment of the entire animal kingdom covering both invertebrates and vertebrates. It publishes comprehensive overviews on animal systematics and morphology and covers extensively further aspects like physiology, behavior, ecology and applied zoological research. Although our knowledge regarding many taxonomic groups has grown enormously over the last decades, it is still the objective of the Handbook of Zoology to be comprehensive in the sense that text and references together provide a solid basis for further research. Editors and authors seek a balance between describing species richness and diversity, explaining the importance of certain groups in a phylogenetic context and presenting a review of available knowledge and up-to-date references. New contributions to the series present the combined effort of an international team of editors and authors, entirely published in English and tailored to the needs of the international scientific community. Upcoming volumes and projects in progress include volumes on Annelida (Volumes 1-3), Bryozoa, Mammalia, Miscellaneous Invertebrates, Nannomecoptera, Neomecoptera and Strepsiptera and are followed later by fishes, reptiles and further volumes on mammals. Background The renowned German reference work Handbook of Zoology was founded in the 1920's by Professor Willi Kukenthal in Berlin and treated the complete animal kingdom from single cell organisms to mammals in eight thematic volumes: Volume I Protozoa, Porifera, Colenteratea, Mesozoa (1925); Volume II Vermes (1933/34); Volume III Arthropoda ex. Insecta (1927/1932); Volume IV Arthropoda: Insecta; Volume V Solenogastres, Mollusca, Echinoderma (1925); Volume VI Pisces / Amphibia (1930); Volume VII Reptilia / Aves (1931); Volume VIII Mammalia. The Volumes IV Arthropoda: Insecta and VII Mammalia continued publication into the present with the most recent contributions in English language. Adapting to the accelerating speed of scientific discovery in the past decades the Handbook of Zoology entered a next phase in 2010. In the new edition of the Handbook of Zoology, the original eight thematic volumes gave way for smaller and more flexible groupings that reflect the current state of phylogenetic knowledge. All subsequent volumes were published in print as well as e-book format. The Handbook of Zoology is additionally offered as a database, the Handbook of Zoology Online, which can easily be searched and rapidly updated. Original Handbook material (ca. 28 000 pages) has been reordered along taxonomic (instead of bibliographical) categories and forms the historical basis of this Online Reference Work. As a living Online Reference, the content is continuously updated and new content added. The material can be accessed through taxonomic and subject categories as well as free text, with a diversity of linking and search options. Faster publication times through online-first publication, reference- and cross-linking, and make the Handbook of Zoology highly attractive to both authors and users.

The Nervous Systems of Invertebrates: An Evolutionary and Comparative Approach - With a Coda written by T.H. Bullock... The Nervous Systems of Invertebrates: An Evolutionary and Comparative Approach - With a Coda written by T.H. Bullock (Hardcover, 1995 ed.)
T.H. Bullock; Edited by O. Breidbach, W. Kutsch
R5,525 Discovery Miles 55 250 Ships in 10 - 15 working days

In this volume outstanding specialists review the state of the art in nervous system research for all main invertebrate groups. They provide a comprehensive up-to-date analysis important for everyone working on neuronal aspects of single groups, as well as taking into account the phylogenesis of invertebrates. The articles report on recently gained knowledge about diversification in the invertebrate nervous systems, and demonstrate the analytical power of a comparative approach. Novel techniques in molecular and developmental biology are creating new perspectives that point toward a theoretical foundation for a modern organismic biology. The comparative approach, as documented here, will engage the interest of anyone challenged by the problem of structural diversification in biology.

Schistosomes and Schistosomiasis in South Asia (Hardcover, 2012 ed.): Prof. Mahesh Chandra Agrawal Schistosomes and Schistosomiasis in South Asia (Hardcover, 2012 ed.)
Prof. Mahesh Chandra Agrawal
R5,693 R4,280 Discovery Miles 42 800 Save R1,413 (25%) Ships in 12 - 17 working days

According to the author, the book addresses to all the scientists and not only to immunologists or biologists of European countries who are engaged in developing a vaccine, or a diagnostic kit or a new drug against the infection or on schistosome evolution. Even these scientists have to visit endemic countries for field trials or ask their counterparts to collect field data (which this book addresses ). Thus this book is not on molecular fundamentals but on the infection itself; how schistosome species are responding to the drug ; sensitivity and specificity of immunodiagnostic kits, antigen molecules; snail compatibility, production losses; schistosome evolution; schistosome outbreaks; complexities where more than two schistosome species are existing; problem of human schistosomiasis in South Asia etc In fact , all the topics of great interest to international scientists and scientists of endemic countries.

The Family Trichodoridae: Stubby Root and Virus Vector Nematodes (Hardcover, 1995 ed.): W. Decraemer The Family Trichodoridae: Stubby Root and Virus Vector Nematodes (Hardcover, 1995 ed.)
W. Decraemer
R5,645 Discovery Miles 56 450 Ships in 10 - 15 working days

Trichodorids constitute a group of nematodes, together with tylenchs and longidorids, that are parasitic on plants. The trichodorids form the smallest group in a number of genera, species and also individuals in the soil. However, they are not at all devoid of interest on both economical and zoological grounds, and they are being studied with increasing attention by agronomists and taxonomists. Trichodorids are important in strictly agronomical research, as they are able to cause direct damage to the root system of various crops; they are the agent of the docking disorder' of the sugar beet, a severe disease in Europe. They are also able to transmit various viruses to a series of important crops. These viruses differ from those transmitted by the longidorids and also - as opposed to longidorids - they are not strictly associated with one or a restricted number of species. Trichodorids therefore constitute a potentially active group of direct and indirect predators. The present book has been written by one of the leading specialists on the group, who has produced an up to date review of data on the morpho-anatomy of all species of the group. Moreover, the book is not, as is so often the case, based merely on a literature survey, but on the author's personal observations. The descriptions are supported by detailed drawings and micrographs and in many instances new characters of taxonomic significance have been identified. Attention to detail and keen observation have enabled the author to provide a considered and authoritative opinion on the taxonomy and systematics of the Trichodoridae. Further, the evaluation and selection of specific characteristics clearly demonstrate the importanceof reliable identification of species when undertaking investigations on geographical distribution, ecology and other facets of the biology of individual species, particularly those of economic importance. It is inevitable that in such an actively investigated taxon as the Trichodoridae, there will be a continuing addition of new species which in turn will encourage further expression of taxonomic opinion. If that proves to be so, Dr. Decraemer's book will provide a well-established foundation for any new opinion and will remain a standard reference for Trichodoridae as well as a substantial contribution to the science of nematology. Audience: Research workers and students of agriculture, horticulture and zoology, plant pathologists and extension nematology service.

The Natural History of British Insects - Explaining Them in their Several States, with the Periods of their Transformations,... The Natural History of British Insects - Explaining Them in their Several States, with the Periods of their Transformations, their Food, Oeconomy, &C. Together with the History of Such Minute Insects As Require Investigation by the Microscope : The...; V. (Hardcover)
R828 Discovery Miles 8 280 Ships in 12 - 17 working days
The Muskellunge Symposium: A Memorial Tribute to E.J. Crossman (Hardcover, 2007 ed.): James S Diana, Terry L. Margenau The Muskellunge Symposium: A Memorial Tribute to E.J. Crossman (Hardcover, 2007 ed.)
James S Diana, Terry L. Margenau
R5,482 Discovery Miles 54 820 Ships in 10 - 15 working days

This book documents proceedings of a symposium on muskellunge developed as a memorial for Ed Crossman. It focuses on the biology, ecology, and management of muskellunge, Ed's favorite fish. The papers include survey current ecological, behavioral, and management-related issues for muskellunge fisheries. The symposium was developed to bring researchers and angles together, and was sponsored by Muskies, Inc. The papers focus on issues of importance to muskellunge populations and are developed to inform the public and fishery managers alike.

Morphology, Molecules, Evolution and Phylogeny in Polychaeta and Related Taxa (Hardcover, Reprinted from): Universitat... Morphology, Molecules, Evolution and Phylogeny in Polychaeta and Related Taxa (Hardcover, Reprinted from)
Universitat Osnabruck, Gunter Purschke
R6,489 Discovery Miles 64 890 Ships in 10 - 15 working days

Annelida, mainly consisting of marine Polychaeta and in faunal and partly parasitic Clitellata, is one the most significant metazoan taxa. Its more than 20.000 described species invade nearly all habitats and play a central role in marine benthic systems as well as in terrestrial soil communities. Annelids include all soft-bodied segmented worm-like organisms and have been recognized as a separate "phylum" for almost 200 years.

Recently, evidence has been accumulated which shows that some of the groups formerly regarded as independent "phyla" such as Pogonophora (now recognized as Siboglinidae), Echiura, Myzostomida and perhaps Sipuncula, are most probably nothing else than greatly modified Annelida. The extreme morphological diversity found especially in Polychaeta displays the plasticity of a simple segmented organisation that basically is nothing else but a serial repetition of identical units. Thus, annelids are highly important to our understanding of fundamental questions about morphological and adaptive diversity, as well as clarifying evolutionary changes and phylogenetic relationships.

The book aims to summarize our knowledge on Polychaetes polychaetes and their allies and gives an overview of recent advances gained by studies that employed conventional and modern methods plus, increasingly and importantly, the use of molecular markers and computer-assisted kinship analyses. It also reflects the state of art in polychaete sciences and presents new questions and controversies. As such it will significantly influence the direction of research on Polychaeta and their related taxa.

The Geohelminths - Ascaris, Trichuris and Hookworm (Hardcover, 2002 ed.): Celia V. Holland, Malcolm W. Kennedy The Geohelminths - Ascaris, Trichuris and Hookworm (Hardcover, 2002 ed.)
Celia V. Holland, Malcolm W. Kennedy
R5,476 Discovery Miles 54 760 Ships in 10 - 15 working days

The soil-transmitted nematode parasites, or geohelminths, are - called because they have a direct life cycle, which involves no intermediate hosts or vectors, and are transmitted by faecal contamination of soil, foodstuffs and water supplies. They all inhabit the intestine in their adult stages but most species also have tissue-migratoryjuvenile stages, so the disease manifestations they cause can therefore be both local and systemic. The geohelminths together present an enormous infection burden on humanity. Those which cause the most disease in humans are divided into three main groupings, Ascaris lumbricoides (the large roundworm), Trichuris trichiura (whipworm), and the blood-feeding hookworms (Ancylostoma duodenale and Necator americanus ), and this book concentrates on these. These intestinal parasites are highly prevalent worldwide, A. lumbricoides is estimated to infect 1471 million (over a quarter ofthe world's population), hookworms 1277 million, and T. trichiura 1049 million. The highly pathogenic Strongyloides species might also be classified as geohelminths, but they are not dealt with here because the understanding of their epidemiology, immunology and genetics has not advanced as rapidly as for the others. This is primarily because of the often covert nature of the infections, with consequent difficulties for analysis. If there is ever a second edition of this book, then there will hopefully be much to say about this infection.

Biology of Earthworms (Hardcover, 2011 Ed.): Ayten Karaca Biology of Earthworms (Hardcover, 2011 Ed.)
Ayten Karaca
R5,848 R4,278 Discovery Miles 42 780 Save R1,570 (27%) Ships in 12 - 17 working days

Earthworms, which belong to the order Oligochaeta, comprise roughly 3,000 species grouped into five families. Earthworms have been called 'ecosystem engineers'; much like human engineers, they change the structure of their environments. Earthworms are very versatile and are found in nearly all terrestrial ecosystems. They play an important role in forest and agricultural ecosystems. This Soil Biology volume describes the various facets of earthworms, such as their role in soil improvement, soil structure, and the biocontrol of soil-borne plant fungal diseases. Reviews discuss earthworms' innate immune system, molecular markers to address various issues of earthworm ecology, earthworm population dynamics, and the influences of organic farming systems and tillage. Further topics include the characteristics of vermicompost, relationships between soil earthworms and enzymes, the role of spermathecae, copulatory behavior, and adjustment of the donated sperm volume.

Arthropod Management in Vineyards: - Pests, Approaches, and Future Directions (Hardcover, 2012 ed.): Noubar J. Bostanian,... Arthropod Management in Vineyards: - Pests, Approaches, and Future Directions (Hardcover, 2012 ed.)
Noubar J. Bostanian, Charles Vincent, Rufus Isaacs
R7,452 Discovery Miles 74 520 Ships in 10 - 15 working days

Provides a state-of-the-science overview of arthropods affecting grape production around the world. Vineyard pest management is a dynamic and evolving field, and the contributed chapters provide insights into arthropods that limit this important crop and its products. Written by international experts from the major grape-growing regions, it provides a global overview of arthropods affecting vines and the novel strategies being used to prevent economic losses, including invasive pests affecting viticulture. The book contains reviews of the theoretical basis of integrated pest management, multiple chapters on biological control, current status of chemical control, as well as in-depth and well-illustrated reviews of the major arthropod pests affecting grape production and how they are being managed worldwide. This text will serve as a primary resource for applied entomologists, students, growers, and consultants with interests at the intersection of viticulture and applied entomology.

Through the Brazilian Wilderness (Hardcover): Theodore Roosevelt Through the Brazilian Wilderness (Hardcover)
Theodore Roosevelt
R664 Discovery Miles 6 640 Ships in 12 - 17 working days
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