Download or read book The Host Habitat and Geographical Range and Disease Relationships of Venomous and Parasitic Arthropods and Arthropod Borne Parasites written by ALFRED COSMAS BUTELE and published by GRIN Verlag. This book was released on 2013-01-31 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: Essay from the year 2013 in the subject Biology - Miscellaneous, grade: A, ( Atlantic International University ) (School of Science and Engineering), course: Master of Science (Applied Entomology), language: English, abstract: Venomous arthropods are those that release a poisonous substance (venom) when disturbed. They release the venom in their defense against intruders. Examples of venomous arthropods are scorpions, wasps, some caterpillars and bees. The word “parasite” is derived from two Greek words, “para”, meaning “beside”, and “sitos” meaning “food”. Therefore, a parasite literally means an organism that is beside another organism for purposes of obtaining food. Adam, et al. (1979) defined a parasite as an organism which depends for part of its life or for its entire life on another organism, called the host, from which it obtains food and shelter. According to Smyth (1996), hosts are normally of a different species from their parasites. Parasitism is a kind of adaptation for survival, and in any case, a true parasite should not kill its host, lest it will kill its source of survival and/or kill itself too. Although many parasitic organisms are harmless to the host, others are pathogenic; they cause disease in their hosts, leading to morbidity and death of the host. The parasitic mode of life must have been a survival mechanism developed by certain organisms since the beginning of life on earth, about 4 billion years ago. It must have been impossible for these organisms to survive on their own. It is known that environment can change; presenting different conditions each time and organisms struggle to cope and survive with the change. We are aware that the earth has gone through periods of ice, fire, meteorite strikes, volcanic eruptions, global dust veils, acid rain, and continental upheavals. When such changes occur in the environment, organisms naturally take refuge in safer habitats, hosts or geographical locations. Better still, others change behaviour or transit through an evolutionary process into a new organism in order to fit within the new conditions. So, changes in the environment present with both challenges and opportunities. Organisms which were once free living can become parasitic and those which were once non-pathogenic can become pathogenic.
Download or read book Parasites of Homo sapiens written by Richard Ashford and published by CRC Press. This book was released on 2003-01-23 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Homo sapiens rank among the most parasitized of all animals. In part this is because we know so much about all aspects of the biology of our species, but in addition, our varied habitat and diet and our global distribution exposes us to more infections than any other species. Whereas some familiar parasitic infections are responsible for much human disease and suffering, the great majority are rare or obscure forms ignored by all but the most comprehensive texts. The Parasites of Homo sapiens: An Annotated checklist of the Protozoa, Helminths and Arthropods for Which We Are Home, 2nd Edition presents a comprehensive listing of them all. Closely following the pattern of the first edition, this new edition incorporates a wealth of further information and data from the most recently published research findings. An indispensable guide for all parasitologists, it presents a comprehensive checklist of all animals naturally parasitic in or on the human body. Each parasite listed includes a complete summary of its characteristics. The structure of each entry includes: The scientific name of the parasite Synonyms for scientific names Status of reported human cases Geographical distribution and abundance Parasite habitat on humans Hosts Transmission mechanisms Human risk factors Indication of host-specificity status
Download or read book The Biogeography of Host Parasite Interactions written by Serge Morand and published by Oxford University Press. This book was released on 2010-07 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited volume demonstrates how the latest developments in biogeography (for example in phylogenetics, macroecology, and geographic information systems) can be applied to studies in the evolutionary ecology of host-parasite interactions in order to integrate spatial patterns with ecological theory.
Download or read book Parasites and Pathogens of Insects written by Nancy E. Beckage and published by Academic Press. This book was released on 1993-07-29 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: V.1 - Parasites; Patterns of development in insect parasites; Games parasites play: the dynamic roles of proteins and peptides in the relationship between parasite and host; Hormonal interactions between insect endoparasites and their host insects; Reproductive disturbances induced by parasites and pathogens of insects; Behavioral effects of parasites and pathogens in insect hosts; Redirection of host metabolism and effects on parasite nutrition; Teratocytes: developmental and biochemical characteristics; The polydnavirus life cycle; Polydnavirus genome organization; Venoms of parasitic hymenoptera as investigatory tool; Biochemical and molecular basis of mosquito susceptibility to Plasmodium and filarioid nematodes; Celular defense responses of insects: unresolved problems; The response to foreign tissue transplants in insects; Regulation of insect hemolymph phenoloxidases. v.2 - Pathogens; Tripartite interactions between symbiotically associated entomopathogenic bacteria, nematodes, and their insect hosts; The insect immune proteins and the regulation of their genes; Interaction of Bacillus thuringiensis endotoxins with the insect midgut epithelium; Viral pathobiology in relation to insect control; Baculoviruses, vertebrate viruses, and cytoskeletons; Baculovirus enhancing proteins as determinants of viral pathogenesis; Invertebrate transposable elements in the baculovirus genome: characterization and significance; Genetic manipulation of the baculovirus genome for insect pest control; Insect resistance to viruses; Biology and mechanisms of insect-cuticle invasion by deuteromycete fungal pathogens; Host-parasitoid-pathogen interactions.
Download or read book Parasitology and Vector Biology written by William C. Marquardt and published by Elsevier. This book was released on 2000 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt: Parasitology and Vector Biology, Second Edition, is a comprehensive introduction to human and animal parasitology. It provides basic information on the biologies of such agents as protists, worms, and arthropods, but it also emphasizes how control programs can be structured in a sociological, political, and economic milieu. Students and researchers alike will appreciate the added coverage of the molecular aspects of parasitology in this new edition. * Includes more than 400 photos and drawings * Contains sidebars that discuss various aspects of parasitic disease * Discusses the real-world control of parasitic diseases, within biological, social, and economic contexts * Offers an expanded discussion of vector biology * Includes an extensive glossary * Consistent, logical organization allows the student ready access to important material
Download or read book Introduced Parasites and Predators of Arthropod Pests and Weeds written by Curtis Paul Clausen and published by . This book was released on 1978 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Medical and Veterinary Entomology written by Gary R. Mullen and published by Academic Press. This book was released on 2009-04-22 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt: Medical and Veterinary Entomology, Second Edition, has been fully updated and revised to provide the latest information on developments in entomology relating to public health and veterinary importance. Each chapter is structured with the student in mind, organized by the major headings of Taxonomy, Morphology, Life History, Behavior and Ecology, Public Health and Veterinary Importance, and Prevention and Control. This second edition includes separate chapters devoted to each of the taxonomic groups of insects and arachnids of medical or veterinary concern, including spiders, scorpions, mites, and ticks. Internationally recognized editors Mullen and Durden include extensive coverage of both medical and veterinary entomological importance. This book is designed for teaching and research faculty in medical and veterinary schools that provide a course in vector borne diseases and medical entomology; parasitologists, entomologists, and government scientists responsible for oversight and monitoring of insect vector borne diseases; and medical and veterinary school libraries and libraries at institutions with strong programs in entomology. Follows in the tradition of Herm's Medical and Veterinary Entomology The latest information on developments in entomology relating to public health and veterinary importance Two separate indexes for enhanced searchability: Taxonomic and Subject New to this edition: Three new chapters Morphological Adaptations of Parasitic Arthropods Forensic Entomology Molecular Tools in Medical and Veterinary Entomology 1700 word glossary Appendix of Arthropod-Related Viruses of Medical-Veterinary Importance Numerous new full-color images, illustrations and maps throughout
Download or read book Vector Borne Diseases written by Institute of Medicine and published by National Academies Press. This book was released on 2008-03-18 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vector-borne infectious diseases, such as malaria, dengue fever, yellow fever, and plague, cause a significant fraction of the global infectious disease burden; indeed, nearly half of the world's population is infected with at least one type of vector-borne pathogen (CIESIN, 2007; WHO, 2004a). Vector-borne plant and animal diseases, including several newly recognized pathogens, reduce agricultural productivity and disrupt ecosystems throughout the world. These diseases profoundly restrict socioeconomic status and development in countries with the highest rates of infection, many of which are located in the tropics and subtropics. Although this workshop summary provides an account of the individual presentations, it also reflects an important aspect of the Forum philosophy. The workshop functions as a dialogue among representatives from different sectors and allows them to present their beliefs about which areas may merit further attention. These proceedings summarize only the statements of participants in the workshop and are not intended to be an exhaustive exploration of the subject matter or a representation of consensus evaluation. Vector-Borne Diseases : Understanding the Environmental, Human Health, and Ecological Connections, Workshop Summary (Forum on Microbial Threats) summarizes this workshop.
Download or read book Under the Weather written by National Research Council and published by National Academies Press. This book was released on 2001-06-29 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the dawn of medical science, people have recognized connections between a change in the weather and the appearance of epidemic disease. With today's technology, some hope that it will be possible to build models for predicting the emergence and spread of many infectious diseases based on climate and weather forecasts. However, separating the effects of climate from other effects presents a tremendous scientific challenge. Can we use climate and weather forecasts to predict infectious disease outbreaks? Can the field of public health advance from "surveillance and response" to "prediction and prevention?" And perhaps the most important question of all: Can we predict how global warming will affect the emergence and transmission of infectious disease agents around the world? Under the Weather evaluates our current understanding of the linkages among climate, ecosystems, and infectious disease; it then goes a step further and outlines the research needed to improve our understanding of these linkages. The book also examines the potential for using climate forecasts and ecological observations to help predict infectious disease outbreaks, identifies the necessary components for an epidemic early warning system, and reviews lessons learned from the use of climate forecasts in other realms of human activity.
Download or read book Disease in Evolution written by Mary E. Wilson and published by . This book was released on 1994 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work aims to advance the intellectual understanding of the emergence and reemergence of infectious diseases. Practitioners of diverse disciplines - epidemiology, evolutionary biology, environmental sciences, ecology, climatology, social and behavioural sciences, entomology, microbiology, parasitology and virology - report on recently developed techniques from many areas, including molecular biology, genetics, mathematical modelling and remote sensing. These techniques are exploited in an attempt to understand global configurations of infectious disease emergence. Analysis of historical examples reveals patterns not apparent during a single lifetime of observation. This volume emphasises the creative use of cross-disciplinary approaches to extend the limits of knowledge in this important area. These 32 papers were presented at a workshop held by the Harvard School of Public Health at Woods Hole, Massachusetts, 7th-10th November.
Download or read book Epidemiology and Control of Vector borne Diseases written by Harry D. Pratt and published by . This book was released on 1963 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Arthropods as Vectors of Emerging Diseases written by Heinz Mehlhorn and published by Springer Science & Business Media. This book was released on 2012-07-05 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: Global warming and globalization are the buzzwords of our time. They have nearly reached a religious status and those who deny their existence are considered modern heretics. Nevertheless, the earth has become an overcrowded village, traversable within a single day. Thus it is hardly surprising that besides persons and goods also agents of disease are easily transported daily from one end of the world to the other, threatening the health and lives of billions of humans and their animals. Agents of diseases (prions, viruses, bacteria, fungi and parasites) are not only transmitted by body contact or direct exchange of bodily fluids, but also by means of vectors which belong to the groups of licking or blood-sucking arthropods (mites, ticks, insects) that live close to humans and their houses. Without a doubt the recently accelerating globalization supports the import of agents of disease into countries where they never had been or where they had long since been eradicated, leading to a false sense of living on a “safe island.” These newly imported or reintroduced diseases – called “emerging diseases” – may lead to severe outbreaks in cases where the countries are not prepared to combat them, or in cases where viruses are introduced that cannot be controlled by medications or vaccines. Arthropods are well known vectors for the spread of diseases. Thus their invasion from foreign countries and their spreading close to human dwellings must be blocked everywhere (in donor and receptor countries) using safe and effective measures. This book presents reviews on examples of such arthropod-borne emerging diseases that lurk on the fringes of our crowded megacities. The following topics show that there is an ongoing invasion of potential vectors and that control measures must be used now in order to avoid disastrous outbreaks of mass diseases.
Download or read book In the Light of Evolution written by National Academy of Sciences and published by National Academies Press. This book was released on 2017-01-01 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biodiversity-the genetic variety of life-is an exuberant product of the evolutionary past, a vast human-supportive resource (aesthetic, intellectual, and material) of the present, and a rich legacy to cherish and preserve for the future. Two urgent challenges, and opportunities, for 21st-century science are to gain deeper insights into the evolutionary processes that foster biotic diversity, and to translate that understanding into workable solutions for the regional and global crises that biodiversity currently faces. A grasp of evolutionary principles and processes is important in other societal arenas as well, such as education, medicine, sociology, and other applied fields including agriculture, pharmacology, and biotechnology. The ramifications of evolutionary thought also extend into learned realms traditionally reserved for philosophy and religion. The central goal of the In the Light of Evolution (ILE) series is to promote the evolutionary sciences through state-of-the-art colloquia-in the series of Arthur M. Sackler colloquia sponsored by the National Academy of Sciences-and their published proceedings. Each installment explores evolutionary perspectives on a particular biological topic that is scientifically intriguing but also has special relevance to contemporary societal issues or challenges. This tenth and final edition of the In the Light of Evolution series focuses on recent developments in phylogeographic research and their relevance to past accomplishments and future research directions.
Download or read book The Rasputin Effect When Commensals and Symbionts Become Parasitic written by Christon J. Hurst and published by Springer. This book was released on 2016-07-05 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume focuses on those instances when benign and even beneficial relationships between microbes and their hosts opportunistically change and become detrimental toward the host. It examines the triggering events which can factor into these changes, such as reduction in the host’s capacity for mounting an effective defensive response due to nutritional deprivation, coinfections and seemingly subtle environmental influences like the amounts of sunlight, temperature, and either water or air quality. The effects of environmental changes can be compounded when they necessitate a physical relocation of species, in turn changing the probability of encounter between microbe and host. The change also can result when pathogens, including virus species, either have modified the opportunist or attacked the host’s protective natural microflora. The authors discuss these opportunistic interactions and assess their outcomes in both aquatic as well as terrestrial ecosystems, highlighting the impact on plant, invertebrate and vertebrate hosts.
Download or read book Molecular Biology of The Cell written by Bruce Alberts and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biodiversity and Health in the Face of Climate Change written by Melissa R. Marselle and published by Springer. This book was released on 2019-06-11 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book identifies and discusses biodiversity’s contribution to physical, mental and spiritual health and wellbeing. Furthermore, the book identifies the implications of this relationship for nature conservation, public health, landscape architecture and urban planning – and considers the opportunities of nature-based solutions for climate change adaptation. This transdisciplinary book will attract a wide audience interested in biodiversity, ecology, resource management, public health, psychology, urban planning, and landscape architecture. The emphasis is on multiple human health benefits from biodiversity - in particular with respect to the increasing challenge of climate change. This makes the book unique to other books that focus either on biodiversity and physical health or natural environments and mental wellbeing. The book is written as a definitive ‘go-to’ book for those who are new to the field of biodiversity and health.
Download or read book Saving Lives Buying Time written by Institute of Medicine and published by National Academies Press. This book was released on 2004-09-09 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: For more than 50 years, low-cost antimalarial drugs silently saved millions of lives and cured billions of debilitating infections. Today, however, these drugs no longer work against the deadliest form of malaria that exists throughout the world. Malaria deaths in sub-Saharan Africaâ€"currently just over one million per yearâ€"are rising because of increased resistance to the old, inexpensive drugs. Although effective new drugs called "artemisinins" are available, they are unaffordable for the majority of the affected population, even at a cost of one dollar per course. Saving Lives, Buying Time: Economics of Malaria Drugs in an Age of Resistance examines the history of malaria treatments, provides an overview of the current drug crisis, and offers recommendations on maximizing access to and effectiveness of antimalarial drugs. The book finds that most people in endemic countries will not have access to currently effective combination treatments, which should include an artemisinin, without financing from the global community. Without funding for effective treatment, malaria mortality could double over the next 10 to 20 years and transmission will intensify.
