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Arthropods and Human Skin

Arthropods and Human Skin PDF Author: John O'Donel Alexander
Publisher: Springer Science & Business Media
ISBN: 144711356X
Category : Medical
Languages : en
Pages : 419

Book Description
To the entomologist all insects have six legs; the layman tends to use the term "insect" to include the eight-legged spiders and mites. All these creatures are correctly classified as arthropods. Many thousands of the hundreds of thousands of recognised species of arthropods are found in the human environment-domestic, occupational and rec reational. Those species which are obligate parasites of man, the human scabies mite and the head and body lice, produce familiar clinical syndromes. They remain important in medical practice and have been the subject of a great deal of recent research. This is beginning to throw much light on the immunological mechanisms which largely determine the reactions of the host. Dr. Alexander has provided a detailed survey of this work. The wasps, bees, ants and other Hymenoptera which may sting man in self-defence can cause painful, even fatal reactions. The recent work on this important subject has also been thoroughly reviewed. Every dermatologist of experience will admit that he sees many patients in whom he makes a diagnosis of "insect bites", if he has the confidence to do so, or of "papular urticaria" or "prurigo" when he lacks such confidence, mainly because he is at a loss to know which arthropod is likely to be implicated. In his survey of the enormous literature in the entomological, public health and dermatology journals Dr. Alexander has provided an invaluable guide in which the solutions to these clinical mysteries can be sought.

Arthropods and Human Skin

Arthropods and Human Skin PDF Author: John O'Donel Alexander
Publisher: Springer Science & Business Media
ISBN: 144711356X
Category : Medical
Languages : en
Pages : 419

Book Description
To the entomologist all insects have six legs; the layman tends to use the term "insect" to include the eight-legged spiders and mites. All these creatures are correctly classified as arthropods. Many thousands of the hundreds of thousands of recognised species of arthropods are found in the human environment-domestic, occupational and rec reational. Those species which are obligate parasites of man, the human scabies mite and the head and body lice, produce familiar clinical syndromes. They remain important in medical practice and have been the subject of a great deal of recent research. This is beginning to throw much light on the immunological mechanisms which largely determine the reactions of the host. Dr. Alexander has provided a detailed survey of this work. The wasps, bees, ants and other Hymenoptera which may sting man in self-defence can cause painful, even fatal reactions. The recent work on this important subject has also been thoroughly reviewed. Every dermatologist of experience will admit that he sees many patients in whom he makes a diagnosis of "insect bites", if he has the confidence to do so, or of "papular urticaria" or "prurigo" when he lacks such confidence, mainly because he is at a loss to know which arthropod is likely to be implicated. In his survey of the enormous literature in the entomological, public health and dermatology journals Dr. Alexander has provided an invaluable guide in which the solutions to these clinical mysteries can be sought.

Chemical Defenses of Arthropods

Chemical Defenses of Arthropods PDF Author: Murry Blum
Publisher: Elsevier
ISBN: 0323145558
Category : Science
Languages : en
Pages : 575

Book Description
Chemical Defenses of Arthropods charts the significant progress in the study of chemical defenses in arthropods, a rapidly expanding area of chemical ecology. The book groups the defensive compounds secreted by arthropods based on their main functionalities and sequentially lists them according to their carbon numbers. Organized into 19 chapters, this volume begins with an overview of the defensive exudates of arthropods and how arthropods have exploited these compounds to deter the ubiquitous and omnipresent predators around them. The next chapters introduce the reader to the defensive compounds produced in the exocrine glands of arthropods, ranging from alcohols and ketones to hydrocarbons, carboxylic acids, esters, 1,4-quinones and hydroquinones, lactones, phenols, steroids, and proteinaceous venoms. The book also discusses the taxonomic value of arthropod defensive compounds, with emphasis on factors affecting the composition of defensive secretions and taxonomic correlations that utilize them. Later chapters focus on arthropod biosynthesis of exocrine compounds, how insects tolerate the presence of plant toxins in their diets, and identified defensive compounds in arthropods. The book concludes with an analysis of the properties and characteristic distributions of arthropod natural products, along with their adaptiveness as defensive agents. This book is a valuable resource for biologists and chemists.

Insects and Wildlife

Insects and Wildlife PDF Author: Dr John Capinera
Publisher: John Wiley & Sons
ISBN: 1444357840
Category : Science
Languages : en
Pages : 808

Book Description
Insects and Wildlife: Arthropods and their Relationships with Wild Vertebrate Animals provides a comprehensive overview of the interrelationships of insects and wildlife. It serves as an introduction to insects and other arthropods for wildlife management and other vertebrate biology students, and emphasizes the importance of insects to wild vertebrate animals. The book emphasizes how insects exert important influences on wildlife habitat suitability and wildlife population sustainability, including their direct and indirect effects on wildlife health. Among the important topics covered are: the importance of insects as food items for vertebrate animals; the role of arthropods as determinants of ecosystem health and productivity; the ability of arthropods to transmit disease-causing agents; an overview of representative disease-causing agents transmitted by arthropods; arthropods as pests and parasites of vertebrates; the hazards to wildlife associated with using using pesticides to protect against insect damage; insect management using techniques other than pesticides; the importance of insect conservation and how insects influence wildlife conservation.

Skin and Arthropod Vectors

Skin and Arthropod Vectors PDF Author: Nathalie Boulanger
Publisher: Academic Press
ISBN: 0128114371
Category : Science
Languages : en
Pages : 500

Book Description
Approx.500 pagesApprox.500 pages

Arthropod Brains

Arthropod Brains PDF Author: Nicholas James Strausfeld
Publisher: Harvard University Press
ISBN: 0674046331
Category : Science
Languages : en
Pages : 849

Book Description
In The Descent of Man, Charles Darwin proposed that an ant’s brain, no larger than a pin’s head, must be sophisticated to accomplish all that it does. Yet today many people still find it surprising that insects and other arthropods show behaviors that are much more complex than innate reflexes. They are products of versatile brains which, in a sense, think. Fascinating in their own right, arthropods provide fundamental insights into how brains process and organize sensory information to produce learning, strategizing, cooperation, and sociality. Nicholas Strausfeld elucidates the evolution of this knowledge, beginning with nineteenth-century debates about how similar arthropod brains were to vertebrate brains. This exchange, he shows, had a profound and far-reaching impact on attitudes toward evolution and animal origins. Many renowned scientists, including Sigmund Freud, cut their professional teeth studying arthropod nervous systems. The greatest neuroanatomist of them all, Santiago Ramón y Cajal—founder of the neuron doctrine—was awed by similarities between insect and mammalian brains. Writing in a style that will appeal to a broad readership, Strausfeld weaves anatomical observations with evidence from molecular biology, neuroethology, cladistics, and the fossil record to explore the neurobiology of the largest phylum on earth—and one that is crucial to the well-being of our planet. Highly informative and richly illustrated, Arthropod Brains offers an original synthesis drawing on many fields, and a comprehensive reference that will serve biologists for years to come.

Arthropod Biology and Evolution

Arthropod Biology and Evolution PDF Author: Alessandro Minelli
Publisher: Springer Science & Business Media
ISBN: 3642361609
Category : Science
Languages : en
Pages : 530

Book Description
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.

Insects and Other Arthropods of Tropical America

Insects and Other Arthropods of Tropical America PDF Author: Paul E. Hanson
Publisher: Cornell University Press
ISBN: 150170429X
Category : Nature
Languages : en
Pages : 384

Book Description
Visitors to tropical forests generally come to see the birds, mammals, and plants. Aside from butterflies, however, insects usually do not make it on the list of things to see. This is a shame. Insects are everywhere, they are often as beautiful as the showiest of birds, and they have a fascinating natural history. With their beautifully illustrated guide to insects and other arthropods, Paul E. Hanson and Kenji Nishida put the focus on readily observable insects that one encounters while strolling through a tropical forest in the Americas. It is a general belief that insects in the tropics are larger and more colorful than insects in temperate regions, but this simply reflects a greater diversity of nearly all types of insects in the tropics. On a single rainforest tree, for example, you will find more species of ant than in all of England.Though written for those who have no prior knowledge of insects, this book should also prove useful to those who study them. In addition to descriptions of the principal insect families, the reader will find a wealth of biological information that serves as an introduction to the natural history of insects and related classes. Sidebars on insect behavior and ecological factors enhance the descriptive accounts. Kenji Nishida's stunning photographs—many of which show insects in action in their natural settings—add appeal to every page. A final chapter provides a glimpse into the intriguing world of spiders, scorpions, crabs, and other arthropods.

Atlas on the Biology of Soil Arthropods

Atlas on the Biology of Soil Arthropods PDF Author: Gerhard Eisenbeis
Publisher: Springer Science & Business Media
ISBN: 3642726348
Category : Science
Languages : en
Pages : 449

Book Description
From the Foreword: "Anyone who has glimpsed a sample of soil animals, especially the soil arthropods, through the binocular microscope will never forget the fascination of their abundant shapes and structures ... electron microscopy has added another dimension which multiplies the initial fascination. When I leaf through this "atlas" my attention is repeatedly caught by the numerous pictures. ... the richness of form and function of the soil arthropods has proved to be an inexhaustible source of biological interest. The authors ... demonstrate this in a praiseworthy manner. ...This atlas offers every teacher the opportunity of rapidly obtaining an overview and thus compiling the most vivid teaching material. ... Finally, the index offers easy access to each individual aspect of the subject to those who are motivated to study further."

Plant Resistance to Arthropods

Plant Resistance to Arthropods PDF Author: C. Michael Smith
Publisher: Springer Science & Business Media
ISBN: 9781402037016
Category : Science
Languages : en
Pages : 444

Book Description
Arthropod resistant crops reduce pesticide pollution, alleviate hunger and improve human nutrition. This book reviews new information on environmental advantages of plant resistance, transgenic resistance, molecular bases of resistance, and use of molecular markers to map resistance genes.

Arthropod Collection and Identification

Arthropod Collection and Identification PDF Author: Timothy J. Gibb
Publisher: Academic Press
ISBN: 0080919251
Category : Nature
Languages : en
Pages : 325

Book Description
Arthropods are the most numerous and diverse group of animals and studying them requires the use of specialized equipment and specific procedures. This text describes effective methods and equipment for collecting, identifying, rearing, examining, and preserving insects and mites, and explains how to store and care for specimens in collections. It also provides instructions for the construction of many kinds of collecting equipment, traps, rearing cages, and storage units, as well as updated and illustrated keys for identification of the classes of arthropods and the orders of insects. Such information not only aids hobbyists and professionals in preparing insect collections, but it has become essential in documenting and standardizing collections of entomological evidence in forensic as well as pest management sciences.* Over 400 professionally drawn illustrations * Identification keys to find arthropod orders * Comprehensive reading list * Detailed glossary of terms