Download or read book The Opalinid Ciliate Infusorians written by Maynard Mayo Metcalf and published by . This book was released on 1923 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: This bulletin investigates the life histories and structure of various members of the family Opalinidae infesting Anurans (frogs). The author studied European specimens Protoopalina ["Opalina'] intestinalis and P. caudata, before making collections of Opalinids from America and the West Indies. In this bulletin, the author provides a dense treatise on this group of organisms.
Download or read book The Opalinid Ciliate Infusorians written by Maynard Mayo Metcalf and published by . This book was released on 1923 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Further Studies on the Opalinid Ciliate Infusorians and Their Hosts written by Maynard Mayo Metcalf and published by . This book was released on 1940 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Opalinid Ciliate Infusorians Classic Reprint written by Maynard M. Metcalf and published by Forgotten Books. This book was released on 2018-02-18 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Opalinid Ciliate Infusorians Since the summer of 1908 the author has been collecting and Ob serving living specimens of American and West Indian Opalinidae and preserved material from all parts of the world. During this period he has been much indebted to many persons for assistance and courtesies in connection with these studies. The Marine Biological Station at Naples preserved and sent intestines of the Mediterranean fish Box boom, containing Protoopalina saturnalis In fine condition. Prof. E. A. Andrews, Of Johns Hopkins University, sent me im portant material (adult Bufo marinus and its tadpoles, from Jamaica, and tadpoles from an undetermined Anuran from Bromelia leaf cups in Jamaica). H. H. And C. S. Brimley, of Raleigh, North caroa lina, collected for me Anura and Urodela. Dr. H. C. Fortner, of the University of Tennessee, sent me Opalinas from Michigan. Prof. E. L. Mark, director Of the Bermuda Biological Laboratory, has obtained for me, through his pupil, Mr. C. S. Simkins, important data as to the breeding habits of Bufo marinus in Bermuda, and Dr. Leonhard Stejneger has repeatedly given me assistance in matters Of taxonomy of the Amphibia, reviewing my list of names of the forms studied, bringing the nomenclature into harmony with that adopted at the United States National Museum. He has also given considerable zoogeographic data. Professor Hegner kindly sent me an excellent slide Of a form collected by Dr. C. E. Simon, which, by permission, I am describing under the tentative name Opalina [zaruarum]. With this slide was sent a manuscript copy of a paper (hegner and hsiang-fong Wu, 1921) upon this Opalina. I wish very cordially to thank these authors and Doctor Simon. Several institutions have generously extended to me their hos pitality during periods of work ranging from two weeks to eight months. For this kindness I wish to express my most cordial thanks to the Scripps Institution of Biology and its director, Prof. William E. Ritter; to the University of California and the director Of its zoological department, Prof. C. A. Kofoid; to the University Of Washington, and to Prof. Trevor Kincaid, director of the Puget Sound Biological Laboratory; to the authorities of the United States National Museum, and especially to Dr. Leonhard Stejneger, curator of vertebrates in this museum; and to Johns Hopkins University and members Of the faculty of its department of zoology, Profs. H. S. Jennings, E. A. Andrews, and S. O. Mast. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Parasitic Protozoa written by and published by Academic Press. This book was released on 2012-12-02 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: Updated and much expanded, the Second Edition of Parasitic Protozoa is designed to be useful to physicians, veterinarians, and research scientists concerned with diseases caused by protozoa in man, and in domestic and wild animals including fish, mollusks and insects, as well as the more commonly considered vertebrate animals. Each section contains information on disease pathogens, treatment, diagnosis, and epidemiology of the diseases caused by the various protozoans. The book is not limited to these medically-oriented subjects, but treats taxonomy, morphology, and metabolism of the organisms in such a way as to be of interest to scientists and graduate students working in the field of protozoology. The entire edition, published in ten volumes, is arranged so that subjects of common interest occupy individual volumes.
Download or read book Research in Protozoology written by Tze-Tuan Chen and published by Elsevier. This book was released on 2013-10-22 with total page 415 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research in Protozoology is the fourth volume of a series that covers the progress being made in protozoology. This book is comprised of four chapters and begins with a discussion of synchronized cell division in protozoa, including the species Tetrahymena pyriformes, Astasia longa, Plasmodium lophurae, Amoeba proteus and Acanthamoeba sp., and Physarum polycephalum. The following chapters discuss nuclear phenomena during conjugation and the relationship between protozoa and other animals, with emphasis on parasitism, relations between parasite and host groups, and host specificity. The final chapter focuses on chromosomes and nucleoli in some opalinid protozoa. The book is highly recommended for biologists, microbiologists, zoologists, and parasitologists who want to be updated about the developments in the field of protozoology.
Download or read book The Ciliated Protozoa written by John O. Corliss and published by Elsevier. This book was released on 2016-04-20 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Ciliated Protozoa: Characterization, Classification and Guide to the Literature, Second Edition presents a premature major overhauling of the systematics of the Ciliophora sensu lato, which is considered a separate phylum. This book includes a developed rationale and defined criteria that serve as a basis for the reclassification of the ciliates. Discussions of controversial taxa are provided, including arbitrary but critical resolution of their place in, or rejection from, the new overall system. The ideas concerning the evolution of ciliates, as well as “phylogenetic trees are also covered in this text. This text categorizes the ciliates into three classes—Kinetofragminophora, Oligohymenophora, and Polyhymenophora. This publication is a good source for biologists and students interested in ciliates.
Download or read book Collected Reprints written by Maynard Mayo Metcalf and published by . This book was released on 1897 with total page 1330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Ciliated Protozoa written by Denis Lynn and published by Springer Science & Business Media. This book was released on 2008-06-24 with total page 627 pages. Available in PDF, EPUB and Kindle. Book excerpt: distances between groups of ciliates were as vast as significant hurdles to obtain copyright permissions the genetic distances between plants and animals for the over 1,000 required illustrations, and I put – THE major eukaryotic kingdoms at that time! the publication schedule ahead of this element. I continued to collaborate with Mitch, and in There are a number of significant illustrated guides 1991 my first “molecular” Magisterial student, to genera and species that have recently been pub- Spencer Greenwood, published an article estab- lished. References are made to these throughout lishing 1990 or thereabouts as the beginning of the book as sources that readers can consult for this the “Age of Refinement” – the period when gene aspect of ciliate diversity. A future project that I am sequencing techniques would deepen our under- contemplating is an illustrated guide to all the valid standing of the major lines of evolution within ciliate genera.
Download or read book Bulletin of the United States National Museum written by United States National Museum and published by . This book was released on 1922 with total page 938 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Index Catalogue of Medical and Veterinary Zoology Authors written by and published by . This book was released on 1948 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Index catalogue of Medical and Veterinary Zoology written by United States. Bureau of Animal Industry. Zoological Division and published by . This book was released on 1946 with total page 926 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Index catalogue of Medical and Veterinary Zoology written by and published by . This book was released on 1948 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Stockholm Paradigm written by Daniel R. Brooks and published by University of Chicago Press. This book was released on 2019-07-16 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: The contemporary crisis of emerging disease has been a century and a half in the making. Human, veterinary, and crop health practitioners convinced themselves that disease could be controlled by medicating the sick, vaccinating those at risk, and eradicating the parts of the biosphere responsible for disease transmission. Evolutionary biologists assured themselves that coevolution between pathogens and hosts provided a firewall against disease emergence in new hosts. Most climate scientists made no connection between climate changes and disease. None of these traditional perspectives anticipated the onslaught of emerging infectious diseases confronting humanity today. As this book reveals, a new understanding of the evolution of pathogen-host systems, called the Stockholm Paradigm, explains what is happening. The planet is a minefield of pathogens with preexisting capacities to infect susceptible but unexposed hosts, needing only the opportunity for contact. Climate change has always been the major catalyst for such new opportunities, because it disrupts local ecosystem structure and allows pathogens and hosts to move. Once pathogens expand to new hosts, novel variants may emerge, each with new infection capacities. Mathematical models and real-world examples uniformly support these ideas. Emerging disease is thus one of the greatest climate change–related threats confronting humanity. Even without deadly global catastrophes on the scale of the 1918 Spanish Influenza pandemic, emerging diseases cost humanity more than a trillion dollars per year in treatment and lost productivity. But while time is short, the danger is great, and we are largely unprepared, the Stockholm Paradigm offers hope for managing the crisis. By using the DAMA (document, assess, monitor, act) protocol, we can “anticipate to mitigate” emerging disease, buying time and saving money while we search for more effective ways to cope with this challenge.
Download or read book Diseases of Amphibians and Reptiles written by Gerald Hoff and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt: While diseases of free-ranging and captive mammalian and avian wildlife species have received considerable interest in the past 25 years, those of amphibians and reptiles (collectively, the herptiles) generally have been assigned lesser importance. The literature concern ing disease in herptiles is widely scattered, consisting chiefly of case reports and prevalence surveys, and with heavy emphasis on captive reptiles. The dynamics of the host-agent-environment relationship have been studied for only a few diseases. This diverse data base is primarily a function of the paucity of investigators whose chief interest is in diseases of herptiles. This first edition represents an effort to bring together some of the diffuse knowledge on infectious and non-infectious diseases of free-ranging and captive herp tiles. Issue may be taken with the choice of topics; how ever, predominant diseases, as well as some diseases of lesser prominence, are presented. The editors were forced to accept certain omissions, particularly with amphibian diseases, simply for lack of contributors. The resulting text, however, we hope will be of value to veterinarians, herpetolo,gists, wildlife disease investigators, wildlife managers, zoo curators, and university students. G.L. Hoff F.L. Frye E.R. Jacobson v CONTENTS Mycobacteriosis 1 D.G. Brownstein Pasteurella in Reptiles 25 K.P. Snipes Pseudomonas 37 E.R. Jacobson Areomonas 49 E.B. Shotts, Jr.
Download or read book Phylogeny Ecology and Behavior written by Daniel R. Brooks and published by University of Chicago Press. This book was released on 1991 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The merits of this work are many. A rigorous integration of phylogenetic hypotheses into studies of adaptation, adaptive radiation, and coevolution is absolutely necessary and can change dramatically our collective 'gestalt' about much in evolutionary biology. The authors advance and illustrate this thesis beautifully. The writing is often lucid, the examples are plentiful and diverse, and the juxtaposition of examples from different biological systems argues forcefully for the validity of the thesis. Many new insights are offered here, and the work is usually accessible to both the practiced phylogeneticist and the naive ecologist."—Joseph Travis, Florida State University "[Phylogeny, Ecology, and Behavior] presents its arguments forcefully and cogently, with ample . . .support. Brooks and McLennan conclude as they began, with the comment that evolution is a result, not a process, and that it is the result of an interaction of a variety of processes, environmental and historical. Evolutionary explanations must consider all these components, else they are incomplete. As Darwin's explanations of descent with modification integrated genealogical and ecological information, so must workers now incorporate historical and nonhistorical, and biological and nonbiological, processes in their evolutionary perspective."—Marvalee H. Wake, Bioscience "This book is well-written and thought-provoking, and should be read by those of us who do not routinely turn to phylogenetic analysis when investigating adaptation, evolutionary ecology and co-evolution."—Mark R. MacNair, Journal of Natural History
