Invertebrate Blood
Invertebrate Blood

Author: Thomas C. Cheng

Publisher: Springer Science & Business Media

Published: 2013-04-18

Total Pages: 215

ISBN-13: 1468447661

DOWNLOAD EBOOK

At a recent meeting of the Society for Invertebrate Pathology, Dr. K. Kanungo of Western Connecticut State University organized a special symposium on the topic of invertebrate circulatory systems with emphasis on hemocytes and their role in internal defense. The contents of this volume of Comparative Pathobiology represent the proceedings of that gathering. As the Editor of the Journal of Invertebrate Pathology, I am intimately aware of the current popularity of research pertaining to invertebrate immune mechanisms of which hemocytes and associated molecules play a central role. Consequently, the contributions in cluded herein should prove to be of interest to a variety of investi gators including invertebrate zoologists, comparative immunolo gists, physiologists, and cell biologists. As has been stated in previous volumes of this series, Comparative Pathobiology is meant for the publication of proceedings of symposia devoted to some aspect of that broad spectrum of modern biology known as pathobiology. Those interested in having antici pated contributions considered for publication should contact me.

Octopus
Octopus

Author: M. J. Wells

Publisher: Springer Science & Business Media

Published: 2013-06-29

Total Pages: 436

ISBN-13: 9401724687

DOWNLOAD EBOOK

between the organ systems of cephalopods and those of less ambitious molluscs. Octopus does, as we would predict, live close to the limits set by its own physiology. The circulation, to take one example, is barely adequate for such an active animal, mainly because of the absence of any system for pack aging the blood pigment; haemocyanin in solution is a poor oxygen carrier. Cephalopod blood can transport less than 5 millilitres of oxygen per 100 ml of blood (compared with about 15 vol% in fish) and the whole supercharged system of triple hearts, high blood pressure and pulsating blood vessels succeeds only in returning blood that retains less than 30% of its dissolved oxygen by the time it reaches the gills. This at rest; the effect of exercise is immediate and surprisingly long lasting even in octopuses as small as 300 g, which must very swiftly run into oxygen debt when they flee from predators or pursue their prey (Sections 3.2.2, 3.2.4). Digestion, too would seem to be limiting. As with other molluscs, digestion in Octopus is based on secretion absorption cycles by a massive diverticulum of the gut, an adequate system in a less hectic past, but scarcely appropriate in a predator that must be an opportunist in the matter of feeding. Octopus feeds mainly at night, and spends a great deal of every day sitting at home.

Invertebrate Immunity
Invertebrate Immunity

Author: Kenneth Söderhäll

Publisher: Springer Science & Business Media

Published: 2011-06-28

Total Pages: 338

ISBN-13: 1441980598

DOWNLOAD EBOOK

It can be seen that the insects are the still attracting most research and researchers. However, an increasing interest is emerging to study new invertebrate groups, especially those where the genome is known. Even though Drosophila has been and still is an excellent model for immune studies, it is now clear that there are great differences between immune responses in Drosophila and that of several other invertebrates, which indeed calls for more research on other invertebrates

Biology of Blood-Sucking Insects
Biology of Blood-Sucking Insects

Author: Mike Lehane

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 301

ISBN-13: 9401179530

DOWNLOAD EBOOK

Blood-sucking insects are the vectors of many of the most debilitating parasites of man and his domesticated animals. In addition they are of considerable direct cost to the agricultural industry through losses in milk and meat yields, and through damage to hides and wool, etc. So, not surprisingly, many books of medical and veterinary entomology have been written. Most of these texts are organized taxonomically giving the details of the life-cycles, bionomics, relationship to disease and economic importance of each of the insect groups in turn. I have taken a different approach. This book is topic led and aims to discuss the biological themes which are common in the lives of blood-sucking insects. To do this I have concentrated on those aspects of the biology of these fascinating insects which have been clearly modified in some way to suit the blood-sucking habit. For example, I have discussed feeding and digestion in some detail because feeding on blood presents insects with special problems, but I have not discussed respiration because it is not affected in any particular way by haematophagy. Naturally there is a subjective element in the choice of topics for discussion and the weight given to each. I hope that I have not let my enthusiasm for particular subjects get the better of me on too many occasions and that the subject material achieves an overall balance.

Invertebrate Immunology
Invertebrate Immunology

Author: B. Rinkevich

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 261

ISBN-13: 3642797350

DOWNLOAD EBOOK

The biological bases of invertebrate immune responses have interested scientists for decades, from the first relevant observation by E. Metchnikoff in 1882, who discovered phagocytosis while studying starfish larvae. Invertebrate immunology first began to be appre ciated as an important field in the late 1960s and 1970s. However, in the following years there was much controversy regarding the question: do invertebrates offer insight into the origin of the sophisticated immune responses of the vertebrates? There are several reasons why progress in research on invertebrate immune competence has been painfully slow. One of the main impediments to the progress, as compared to the fast development of knowledge in the vertebrate systems, was the fact that most of the studies concentrated on "whole organism" assays, mainly on grafting tissues between allogeneic partners. Only in the last few years have more and more aspects of invertebrate immunity been investigated on the cellular, biochemical and molecular levels. These studies led to discoveries of novel defense reactions, new pathways of effector mechanisms which are elicited after recognition of "nonself', and complex, sometimes highly polymorphic genetic elements that control invertebrate immune reactions. The importance of invertebrate immunity for understanding "immunology" as a whole, despite the conflicting models and hypotheses, is now much more recognized than before. Although most of the 20 phyla belonging to the inver tebrates have different modes of life, body organizations, habitats occupied, and biochemical patterns, they show striking aspects of exceptional precision for discriminating between self and nonself.

Invertebrate Pathology
Invertebrate Pathology

Author: Andrew F. Rowley

Publisher: Oxford University Press

Published: 2022-02-08

Total Pages: 624

ISBN-13: 0192595431

DOWNLOAD EBOOK

Many invertebrates are serious pests of agriculture (e.g., mites and locusts), vectors of disease (e.g., mosquitoes and aquatic snails) and venomous (e.g., scorpions), whilst others are beneficial to humans as pollinators, food sources, and detritivores. Despite their obvious ecological, medical, and economic importance, this is the first comprehensive review of invertebrate diseases to be available within a single volume. Concurrent molecular and bioinformatics developments over the last decade have catalysed a renaissance in invertebrate pathology. High-throughput sequencing, handheld diagnostic kits, and the move to new technologies have rapidly increased our understanding of invertebrate diseases, generating a large volume of fundamental and applied research on the topic. An overview is now timely and this authoritative work assembles an international team of the leading specialists in the field to review the main diseases and pathologic manifestations of all the major invertebrate groups. Each chapter adopts a common plan in terms of its scope and approach to achieve a succinct and coherent synthesis. Invertebrate Pathology is aimed at graduate students and researchers in the fields of disease ecology, invertebrate biology, comparative immunology, aquaculture, fisheries, veterinary science, evolution, and conservation. It will be particularly useful for readers new to the field as well as a broader interdisciplinary audience of practitioners and resource managers.

Exotic Animal Laboratory Diagnosis
Exotic Animal Laboratory Diagnosis

Author: J. Jill Heatley

Publisher: John Wiley & Sons

Published: 2020-03-24

Total Pages: 659

ISBN-13: 0470960353

DOWNLOAD EBOOK

Exotic Animal Laboratory Diagnosis is a practical, user-friendly guide to diagnostic testing in a wide range of exotic species. Offers complete information on obtaining samples, performing tests, and interpreting laboratory results in exotic animals Presents information on each species using a similar format for easy access Emphasizes details on clinical biochemistries, urinalysis, and common laboratory diagnostic tests not found in other resources Draws together information on selecting, performing, and using diagnostic tests into a single easy-to-use resource Covers a wide range of species, including small mammals, primates, reptiles, aquatic animals, and wild, laboratory, and pet birds

Invertebrate Histology
Invertebrate Histology

Author: Elise E. B. LaDouceur

Publisher: John Wiley & Sons

Published: 2021-01-08

Total Pages: 354

ISBN-13: 111950760X

DOWNLOAD EBOOK

The first comprehensive reference to invertebrate histology Invertebrate Histology is a groundbreaking text that offers a comprehensive review of histology in invertebrates. Designed for use by anyone studying, diagnosing, or researching invertebrates, the book covers all major taxonomic groups with details of the histologic features, with color photographs and drawings that clearly demonstrate gross anatomy and histology. The authors, who are each experts in the histology of their respective taxa, bring together the most recent information on the topic into a single, complete volume. An accessible resource, each chapter focuses on a single taxonomic group with salient gross and histologic features that are clearly described in the text and augmented with color photographs and greyscale line drawings. The histologic images are from mostly hematoxylin and eosin stained microscopic slides showing various organ systems at high and low magnification. In addition, each chapter provides helpful tips for invertebrate dissection and information on how to process invertebrates for histology. This important book: Presents detailed information on histology of all major groups of invertebrates Offers a user-friendly text that is organized by taxonomic group for easy reference Features high-quality color photographs and drawings, with slides showing histology and gross photographs to demonstrate anatomy Provides details on invertebrate dissection and processing invertebrates for histology Written for veterinary pathologists, biologists, zoologists, students, and other scientists studying these species, Invertebrate Histology offers the most updated information on the topic written by over 20 experts in the field.