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Nosema Ceranae In Western Honey Bees Apis Mellifera
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Book Synopsis Nosema Ceranae in Western Honey Bees (Apis Mellifera ) by : Geoffrey R. Williams
Download or read book Nosema Ceranae in Western Honey Bees (Apis Mellifera ) written by Geoffrey R. Williams and published by . This book was released on 2013 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: Western honey bees (Apis mellifera; hereafter honey bees) provide vital pollination services to global agriculture and biodiversity. However in recent years they have experienced severe population declines in many regions of the northern hemisphere. Although causes of these honey bee declines are not well understood, multiple pressures such as changes in land-use and climate, management issues, and introduced parasites are believed to be responsible. First described in honey bees in 2006 during a period of high colony mortalities, the microsporidian gut parasite Nosema ceranae became of great concern. In this dissertation I investigated the distribution, management, virulence, and inter-specific interactions of this introduced species. First, I described and clarified the multiple pressures believed to influence honey bee health, including N. ceranae, especially in relation to the mysterious phenomenon Colony Collapse Disorder. I then surveyed colonies in Maritime Canada for N. ceranae and the historic honey bee microsporidian Nosema apis. Although both species were present at a regional scale, intensive sampling in Nova Scotia revealed that N. ceranae was highly prevalent compared to the historic congener. Next, I investigated two potential management options for the parasite. Chemotherapy using the fungicide fumagillin reduced N. ceranae spore intensity but had no effect on colony survival, and indoor over-wintering did not reduce spore intensity but was associated with increased colony survivorship in spring. Using a comparative approach, I observed that N. ceranae infection significantly reduced honey bee longevity in the laboratory but did not influence overall colony health or strength in the field.
Book Synopsis Interactions Between "Nosema Ceranae", Pesticides and Viruses in Western Honey Bee Colonies (Apis Mellifera) by : Gina Tanner
Download or read book Interactions Between "Nosema Ceranae", Pesticides and Viruses in Western Honey Bee Colonies (Apis Mellifera) written by Gina Tanner and published by . This book was released on 2014 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Microbiology for Surgical Infections by : Kateryna Kon
Download or read book Microbiology for Surgical Infections written by Kateryna Kon and published by Elsevier. This book was released on 2014-03-18 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microbiology for Surgical Infections: Diagnosis, Prognosis and Treatment explores current trends in etiology and antibiotic resistance of pathogens responsible for devastating and complex surgical infections. Clinicians and researchers report the most recent advances in diagnostic approaches to bacterial and non-bacterial surgical infections, including invasive fungal infections. Current guidelines for prophylaxis of community-acquired and nosocomial infections, complications in surgery, and improvement of diagnosis and treatment of these devastating surgical infections are also discussed. The work gives specific attention to intra-abdominal and wound infections, as well as infections in cardiac surgery and neurosurgery. Taken together, these explorations inform the work of specialists in different surgical arenas, as well as those working in microbiology. Microbiology for Surgical Infections provides a resource to those working to improve outcomes in this complicated arena by discussing prospects for future study and identifying targets for future research. - Provides a multi-dimensional view of myriad topics pertinent to surgical infections, including questions of etiology, pathogenesis, host-microbial interactions, diagnosis, prognosis, treatment and prophylaxis - Delivers cutting-edge commentary from eminent surgeons, microbiologists, and infectious disease specialists, with global contributions from both the developed and developing worlds - Presents comprehensive research informed by the most recent technological and scientific advances in the field
Book Synopsis Distribution of Microsporidia, Nosema Spp., and Co-infection with Acarine Parasites in Pacific Northwest Honey Bee (Apis Mellifera L.) Colonies by : Matthew Dixon Smart
Download or read book Distribution of Microsporidia, Nosema Spp., and Co-infection with Acarine Parasites in Pacific Northwest Honey Bee (Apis Mellifera L.) Colonies written by Matthew Dixon Smart and published by . This book was released on 2010 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Honey Bee Pests, Predators, and Diseases by : Roger A. Morse
Download or read book Honey Bee Pests, Predators, and Diseases written by Roger A. Morse and published by . This book was released on 1978 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Honey Bee Colony Health by : Diana Sammataro
Download or read book Honey Bee Colony Health written by Diana Sammataro and published by CRC Press. This book was released on 2011-11-17 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarizes the current progress of bee researchers investigating the status of honey bees and possible reasons for their decline, providing a basis for establishing management methods that maintain colony health. Integrating discussion of Colony Collapse Disorder, the chapters provide information on the new microsporidian Nosema ceranae pathogens, the current status of the parasitic bee mites, updates on bee viruses, and the effects these problems are having on our important bee pollinators. The text also presents methods for diagnosing diseases and includes color illustrations and tables.
Book Synopsis Honey Bee Medicine for the Veterinary Practitioner by : Terry Ryan Kane
Download or read book Honey Bee Medicine for the Veterinary Practitioner written by Terry Ryan Kane and published by John Wiley & Sons. This book was released on 2021-05-11 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: An essential guide to the health care of honey bees Honey Bee Medicine for the Veterinary Practitioner offers an authoritative guide to honey bee health and hive management. Designed for veterinarians and other professionals, the book presents information useful for answering commonly asked questions and for facilitating hive examinations. The book covers a wide range of topics including basic husbandry, equipment and safety, anatomy, genetics, the diagnosis and management of disease. It also includes up to date information on Varroa and other bee pests, introduces honey bee pharmacology and toxicology, and addresses native bee ecology. This new resource: Offers a guide to veterinary care of honey bees Provides information on basic husbandry, examination techniques, nutrition, and more Discusses how to successfully handle questions and 'hive calls' Includes helpful photographs, line drawings, tables, and graphs Written for veterinary practitioners, veterinary students, veterinary technicians, scientists, and apiarists, Honey Bee Medicine for the Veterinary Practitioner is a comprehensive and practical book on honey bee health.
Book Synopsis Autoclaved Nosema Ceranae Spores Immune Adult Apis Mellifera Against Future Infection by : Andrey Rubanov
Download or read book Autoclaved Nosema Ceranae Spores Immune Adult Apis Mellifera Against Future Infection written by Andrey Rubanov and published by . This book was released on 2017 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Apis mellifera, the Western honey bee, is an essential pollinator in a multitude of worldwide ecosystems, and occupies a prominent niche in the agricultural industry. Microsporidia like Nosema ceranae are a serious threat to colony health; we demonstrated that immune priming (IP) of newly emerged A. mellifera workers using autoclaved N. ceranae spores can activate an immune response, resulting in lower infection levels after subsequent challenge with live N. ceranae spores. Upon death, bees that were immune primed and challenged were observed to have significantly lower (34%) infection levels compared to control bees that were not immune primed. Immune primed bees also demonstrated a decreased rate of infection. However, the benefit of IP was partially offset by tradeoff in longevity. IP bees survived slightly (1 d) but significantly less than control bees that were not primed or challenged. To determine the mechanisms involved, we analyzed immune gene expression levels of four Toll genes involved in fighting N. ceranae infection. We did not obtain clear results due to high variation in gene expression. However, IP significantly increased expression of apidaecin, hymenoptaecin, and defensin-1, and this may account for a decreased level and rate of infection in IP bees that were subsequently challenged with live spores.
Book Synopsis Honey Bee Medicine for the Veterinary Practitioner by : Terry Ryan Kane
Download or read book Honey Bee Medicine for the Veterinary Practitioner written by Terry Ryan Kane and published by John Wiley & Sons. This book was released on 2021-05-11 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: An essential guide to the health care of honey bees Honey Bee Medicine for the Veterinary Practitioner offers an authoritative guide to honey bee health and hive management. Designed for veterinarians and other professionals, the book presents information useful for answering commonly asked questions and for facilitating hive examinations. The book covers a wide range of topics including basic husbandry, equipment and safety, anatomy, genetics, the diagnosis and management of disease. It also includes up to date information on Varroa and other bee pests, introduces honey bee pharmacology and toxicology, and addresses native bee ecology. This new resource: Offers a guide to veterinary care of honey bees Provides information on basic husbandry, examination techniques, nutrition, and more Discusses how to successfully handle questions and 'hive calls' Includes helpful photographs, line drawings, tables, and graphs Written for veterinary practitioners, veterinary students, veterinary technicians, scientists, and apiarists, Honey Bee Medicine for the Veterinary Practitioner is a comprehensive and practical book on honey bee health.
Book Synopsis Beekeeping – From Science to Practice by : Russell H. Vreeland
Download or read book Beekeeping – From Science to Practice written by Russell H. Vreeland and published by Springer. This book was released on 2017-09-19 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book will help beekeepers understand the fundamentals of beekeeping science. Written in plain and accessible language by actual researchers, it should be part of every beekeeper’s library. The respective chapters not only present raw data; they also explain how to read and understand the most common figures. With topics ranging from honeybee nutrition to strains of Varroa resistant bees, from the effects of pesticide chemicals to understanding diseases, and including a discussion of venom allergies, the book provides essential “knowhow” that beekeepers will benefit from every time they inspect their hives. Further, each chapter ends with the author explaining how beekeepers can (or cannot) directly utilize the information to enhance their beekeeping operation. The text is structured to facilitate ease of use, with each author addressing the same four issues: 1) What are the specific purposes or goals of these experiments? Or more simply: what have these studies taught us? 2) How should a non-scientist read the data generated? 3) What are the key points in relation to practicing beekeepers’ goals? 4) How can the data or techniques discussed be applied by beekeepers in their own apiaries? This approach allows readers to look up specific information quickly, understand it and even put it to use without having to read entire chapters. Further, the chapters are highly readable and concise. As such, the book offers a valuable guide and faithful companion for all beekeepers, one they can use day in and day out.
Book Synopsis Honey Bees of Asia: Microbes, Mites and Pests by : Panuwan Chantawannakul
Download or read book Honey Bees of Asia: Microbes, Mites and Pests written by Panuwan Chantawannakul and published by ศูนย์บริหารงานวิจัย สำนักงานมหาวิทยาลัยเชียงใหม่. This book was released on 2017-05-01 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: key pollinators honey bees, have been evolved for million years along with flowering plants. Asia is rich with species diversity and the bees are known to play vital roles in maintaining the the local fauna and sustain the agricultural crops to secure food sources for human consumption in the region, where the population continue to grow. Southeast Asia is regarded as a hot spot for scientists to study ecological interaction and co-evolution between hosts and parasites 9n different species of honey bees. The most serious and widespread bee pathogens and parasites today in the European honey bee are parasitic mites. nosema, kashmir bee virus which may have originated from Asian honey bees in South East Asia, More information on Asian honey bee health can also reflect the future threat in European honey bee worldwide especially when the global warming and fast transportation allow the prevalence and dissemination of tropics pathogens and parasites. This book aims to provide the current bee health status of honey bees in Asia which are now under emerging pressures from natural causes and human activities in modern society of globalization. Symbiotic relationships between living organisms and honey bees are also described
Book Synopsis Effects of Larval Nosema Ceranae Infection on Adult Honey Bee (Apis Mellifera) Morphology and Physiology by : Lee BenVau
Download or read book Effects of Larval Nosema Ceranae Infection on Adult Honey Bee (Apis Mellifera) Morphology and Physiology written by Lee BenVau and published by . This book was released on 2014 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nosema ceranae is an important honey bee pathogen that has been implicated in CCD. Until recently, it was thought to be exclusively a disease of adult bees, but recent findings indicate that it can also infect larvae. Thus, little is known about the effects of larval Nosema infection. Vitellogenin (Vg) is a key protein necessary for egg-laying, production of brood food, proper immune function, and promotion of longevity through the reduction of oxidative stress. In worker bees, Vg increases in bees of nursing age, at approximately 7 days of age. We therefore investigated the effects of larval Nosema infection on hemolymph Vg and total protein concentration. Larvae infected by a high dose of Nosema ceranae spores developed into adults with 2 fold higher Vg titers. However, they also had 1.3 fold lower total hemolymph protein titers. Thus, Nosema infection resulted in a corresponding 1.7 fold increase in percentage Vg compared to control. Infected bees also had 1.1 fold fewer barbs than did control bees and, we found an inverse relationship between Vg and the number of barbs per lancet. Overall, adult infected bees were not significantly different from controls. Our results indicate that larval N. ceranae infection has a greater impact than does adult infection on adult honey bees. Overall, Nosema ceranae accelerates aging and causes infected bees to resemble older workers or queens.
Book Synopsis VIABILITY ASSESSMENT AND CRYOPRESERVATION OF THE HONEY BEE (APIS MELLIFERA) PARASITE, NOSEMA CERANAE. by : Janine McGowan
Download or read book VIABILITY ASSESSMENT AND CRYOPRESERVATION OF THE HONEY BEE (APIS MELLIFERA) PARASITE, NOSEMA CERANAE. written by Janine McGowan and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Immune and Behavioural Responses of Honey Bees (Apis Mellifera) to Nosema Ceranae Infection and Genetic Variation of the Pathogen by : Pegah Valizadeh
Download or read book Immune and Behavioural Responses of Honey Bees (Apis Mellifera) to Nosema Ceranae Infection and Genetic Variation of the Pathogen written by Pegah Valizadeh and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Nosema disease in honey bees (Apis mellifera) is caused by either the microsporidium, Nosema apis or Nosema ceranae. It has been proposed that N. ceranae originated in east Asia as a pathogen of Apis cerana, and then spread worldwide infecting A. mellifera. To examine this, the genetic variation of N. ceranae samples from Vietnam, Iran, Ontario-Canada, Alberta-Canada, United States, Mexico and Argentina was investigated using novel genetic markers for this pathogen, simple sequence repeat (SSR) length polymorphisms and translation elongation factor-1 alpha sequence. Both markers showed that the highest genetic variation was in Vietnam, and the translation elongation factor-1 alpha sequence showed that only the most common genotype in Vietnam was detectable in other parts of the world. The SSR length polymorphisms also detected some variation in other parts of the world, which corresponded to the international movement of honey bee queens. The results are consistent with N. ceranae being an invasive species with a subset of N. ceranae genotypes spreading from southeast Asia. Several microbial-derived products were tested for their ability to induce innate immunity against nosema disease in A. mellifera. Feeding chitosan or peptidoglycan significantly reduced spore numbers and altered expression of the antimicrobial peptide genes, hymenoptaecin and defensin2, and the autophagy-related gene, blue cheese, of adult honey bees. A study on the effect of N. ceranae infection, as well as infection along with chitosan and peptidoglycan treatment revealed that hygienic behaviour of A. mellifera was not affected by infection or treatment. However, chitosan or peptidoglycan treatment stimulated foraging behaviour. Peptidoglycan and N. ceranae infection without treatment did not alter the proboscis extension reflex (PER), but chitosan significantly decreased memory retention on the first day, but not later days, of the PER test. Chitosan and peptidoglycan treatment also increased the survivorship compared to N. ceranae infection without treatment. Chitosan and peptidoglycan are promising alternative treatments for nosema disease, reducing pathogen reproduction, increasing longevity and stimulating foraging behaviour.
Download or read book Microsporidia written by Louis M. Weiss and published by John Wiley & Sons. This book was released on 2014-10-20 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microsporidia: Pathogens of Opportunity provides a systematic overview of the biology of microsporidia. Written by leading experts in the field, the book combines background and basic information on microsporidia with descriptive methods and resources for working with the pathogen. Newly revised and updated for its second edition, Microsporidia will continue to be the standard text reference for these pathogenic protists, and is an indispensable research resource for biologists, physicians and parasitologists. This new edition of this publication provides systematic reviews of the biology of this pathogen by leading experts in the field, and will be combined with descriptions of the methods and resources for working with this pathogen. • Provides a comprehensive summary of literature on microsporidia and microsporidiosis • The long-awaited update to the standard microsporidia reference text The Microsporidia and Microsporidiosis • Written by an international team of authors representing each of the main research groups working on microsporidia • Chapters provide comprehensive overviews of general methodology as well as special techniques related to these organisms
Book Synopsis The Microsporidia and Microsporidiosis by : Murray Wittner
Download or read book The Microsporidia and Microsporidiosis written by Murray Wittner and published by . This book was released on 1999 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biological Effects of Nosema Ceranae Infections on Honey Bees (Apis Mellifera) and Bumblebees (Bombus Terrestris) by : Vivian Schüler
Download or read book Biological Effects of Nosema Ceranae Infections on Honey Bees (Apis Mellifera) and Bumblebees (Bombus Terrestris) written by Vivian Schüler and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
