Download or read book An Economic Study of Field Mice Genus Microtus Classic Reprint written by David E. Lantz and published by Forgotten Books. This book was released on 2017-12-11 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from An Economic Study of Field Mice (Genus Microtus) The other two genera are of little importance to the farmer. Present paper deals only with the genus Microtus. 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 An Economic Study of Field Mice genus Microtus written by David Ernest Lantz and published by . This book was released on 1907 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ECONOMIC STUDY OF FIELD MICE GENUS MICROTUS written by DAVID E. LANTZ and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Economic Study Of Field Mice genus Microtus written by David Ernest Lantz and published by Palala Press. This book was released on 2018-02-22 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book An Economic Study of Field Mice Genus Microtus written by David E. Lantz and published by . This book was released on 1907 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecology written by Charles J. Krebs and published by Benjamin-Cummings Publishing Company. This book was released on 2001 with total page 695 pages. Available in PDF, EPUB and Kindle. Book excerpt: This best-selling majors ecology book continues to present ecology as a series of problems for readers to critically analyze. No other text presents analytical, quantitative, and statistical ecological information in an equally accessible style. Reflecting the way ecologists actually practice, the book emphasizes the role of experiments in testing ecological ideas and discusses many contemporary and controversial problems related to distribution and abundance. Throughout the book, Krebs thoroughly explains the application of mathematical concepts in ecology while reinforcing these concepts with research references, examples, and interesting end-of-chapter review questions. Thoroughly updated with new examples and references, the book now features a new full-color design and is accompanied by an art CD-ROM for instructors. The field package also includes The Ecology Action Guide, a guide that encourages readers to be environmentally responsible citizens, and a subscription to The Ecology Place (www.ecologyplace.com), a web site and CD-ROM that enables users to become virtual field ecologists by performing experiments such as estimating the number of mice on an imaginary island or restoring prairie land in Iowa. For college instructors and students.
Download or read book Animal Dispersal written by N.C. Stenseth and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: 4.1.1 Demographic significance Confined populations grow more rapidly than populations from which dispersal is permitted (Lidicker, 1975; Krebs, 1979; Tamarin et at., 1984), and demography in island populations where dispersal is restricted differs greatly from nearby mainland populations (Lidicker, 1973; Tamarin, 1977, 1978; Gliwicz, 1980), clearly demonstrating the demographic signi ficance of dispersal. The prevalence of dispersal in rapidly expanding populations is held to be the best evidence for presaturation dispersal. Because dispersal reduces the growth rate of source populations, it is generally believed that emigration is not balanced by immigration, and that mortality of emigrants occurs as a result of movement into a 'sink' of unfavourable habitat. If such dispersal is age- or sex-biased, the demo graphy of the population is markedly affected, as a consequence of differ ences in mortality in the dispersive sex or age class. Habitat heterogeneity consequently underlies this interpretation of dispersal and its demographic consequences, although the spatial variability of environments is rarely assessed in dispersal studies.
Download or read book Public Health Significance of Urban Pests written by Xavier Bonnefoy and published by World Health Organization. This book was released on 2008 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second half of the 20th century and the beginning of the 21st century witnessed important changes in ecology, climate and human behaviour that favoured the development of urban pests. Most alarmingly, urban planners now face the dramatic expansion of urban sprawl, in which city suburbs are growing into the natural habitats of ticks, rodents and other pests. Also, many city managers now erroneously assume that pest-borne diseases are relics of the past. All these changes make timely a new analysis of the direct and indirect effects of present-day urban pests on health. Such an analysis should lead to the development of strategies to manage them and reduce the risk of exposure. To this end, WHO invited international experts in various fields - pests, pest-related diseases and pest management - to provide evidence on which to base policies. These experts identified the public health risk posed by various pests and appropriate measures to prevent and control them. This book presents their conclusions and formulates policy options for all levels of decision-making to manage pests and pest-related diseases in the future. [Ed.]
Download or read book Occupational Health and Safety in the Care and Use of Research Animals written by Committee on Occupational Safety and Health in Research Animal Facilities and published by National Academies Press. This book was released on 1997-06-23 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: Much has been written about the care of research animals. Yet little guidance has appeared on protecting the health and safety of the people who care for or use these animals. This book, an implementation handbook and companion to Guide For the Care and Use of Laboratory Animals, identifies principles for building a program and discusses the accountability of institutional leaders, managers, and employees for a program's success. It provides a detailed description of risks-- physical and chemical hazards, allergens and zoonoses, and hazards from experiments--which will serve as a continuing reference for the laboratory. The book offers specific recommendations for controlling risk through administrative procedures, facility design, engineering controls, and periodic evaluations. The volume focuses on the worker, with detailed discussions of work practices, the use of personal protective gear, and the development of an emergency response plan. This handbook will be invaluable to administrators, researchers, and employees in any animal research facility. It will also be of interest to personnel in zoos, animal shelters, and veterinary facilities.
Download or read book The Laboratory Mouse written by Peggy J. Danneman and published by CRC Press. This book was released on 2012-09-25 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mice have long been recognized as a valuable tool for investigating the genetic and physiological bases of human diseases such as diabetes, infectious disease, cancer, heart disease, and a wide array of neurological disorders. With the advent of transgenic and other genetic engineering technologies, the versatility and usefulness of the mouse as a
Download or read book An Economic Study of Field Mice written by David Ernest Lantz and published by Theclassics.Us. This book was released on 2013-09 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1907 edition. Excerpt: ... The following winter, 1904-5, mice and rabbits were again abundant in the orchard, having come in from adjacent territory. The experiences of the preceding winter were repeated, except that cover for mice was less dense and the campaign against them began much earlier in the season. During the two winters named, many other orchards throughout eastern Kansas were seriously injured by field mice. As a rule no preventive measures were used, and the total losses were enormous. THE RELATION OF FIELD MICE TO THE FARMER. In 1886 the Biological Survey sent out a circular letter of inquiry about damages to crops by mammals." A great many replies from widely scattered places were received. The replies relating to field mice show that these animals everywhere are regarded as a pest. The following extracts from letters on file in the office of the Bureau of Biological Survey are here presented to show not only how great is the amount of injury from field mice in certain localities, but to give an idea of the wide area over which losses are sustained. REPORTS FROM FARMERS AND OTHERS. Field mice are very injurious to clover fields. The injury is done by eating the roots when the ground is covered with snow. The loss is serious. They are injurious to fruit trees and yellow locust and Osage orange. They girdle them beneath the surface of the ground during deep snows. They destroy apple and pear trees, but rarely hurt peach and cherry.--Gap, Lancaster County, Pa., Nov., 1886. Field mice injure pastures and meadows by burrowing under grass roots and destroying them. There were more last summer than for years, I think, owing to the destruction of their natural enemies.--Eastbrook, Lawrence County, Pa., Feb., 1887. Meadow mice are very destructive to grain, ...
Download or read book Biology of Blood Sucking Insects written by Mike Lehane and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book The Mammals of Texas written by David J. Schmidly and published by University of Texas Press. This book was released on 2016-08-09 with total page 737 pages. Available in PDF, EPUB and Kindle. Book excerpt: From reviews of previous editions: “This is the standard reference about Texas mammals.” —Wildlife Activist “A must for anyone seriously interested in the wildlife of Texas.” —Texas Outdoor Writers Association News “[This book] easily fills the role of both a field guide and a desk reference, and is written in a style that appeals to the professional biologist and amateur naturalist alike. . . . [It] should prove useful to anyone with an interest in the mammal fauna of Texas or the southern Great Plains.” —Prairie Naturalist The Mammals of Texas has been the standard reference since the first edition was coauthored by William B. Davis and Walter P. Taylor in 1947. Revised several times over the succeeding decades, it remains the most authoritative source of information on the mammalian wildlife of Texas, with physical descriptions and life histories for 202 species, abundant photographs and drawings, and distribution maps. In this new edition, David J. Schmidly is joined by one of the most active researchers on Texas mammals, Robert D. Bradley, to provide a thorough update of the taxonomy, distribution, and natural history of all species of wild mammals that inhabit Texas today. Using the most recent advances in molecular biology and in wildlife ecology and management, the authors include the most current information about the scientific nomenclature, taxonomy, and identification of species, while also covering significant advances in natural history and conservation.
Download or read book Guidelines for Drinking water Quality written by World Health Organization and published by World Health Organization. This book was released on 1993 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume describes the methods used in the surveillance of drinking water quality in the light of the special problems of small-community supplies, particularly in developing countries, and outlines the strategies necessary to ensure that surveillance is effective.
Download or read book The Ticks of California Acari Ixodida written by Deane Philip Furman and published by Univ of California Press. This book was released on 1984-01-01 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Ultrasonic Vocalization written by Stefan M Brudzynski and published by Academic Press. This book was released on 2018-04-27 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Ultrasonic Vocalization: Window into the Mammalian Brain, Volume 25, is an exhaustive resource on ultrasonic vocalizations in vertebrates, providing full coverage of all aspects of these vocalizations. The book also demonstrates the usefulness of ultrasonic vocalizations in studies of animal communication, sociobiological states, and in mammalian models of affective disorders, addictions and neurodevelopmental disorders, making it an indispensable resource for researchers using animal models. The book begins with the evolution of vocal communication before discussing mechanisms of ultrasound production, perception and the brain systems involved in emotional arousal that are responsible for the generation of vocalization and emotional states. In addition, the book covers studies of neuroactive agents and sociopsychological conditions that can regulate the outcome of ultrasonic vocalization and provide clues about animals' internal states. Critically, the book also includes thorough coverage of pharmacological investigations using ultrasonic vocalizations, increasingly being utilized for studies in affective disorders, psychoses, addiction and alcoholism. No other book provides such extensive coverage of this rapidly growing field of study. - Represents a multidisciplinary approach that incorporates evolution, communication, behavioral homeostasis, emotional expression and neuropsychiatric dysfunction - Provides a systematic review of ultrasonic vocalizations in major groups of rodents widely used in laboratory research - Discusses numerous other species across vertebrates that emit ultrasounds
Download or read book Wildlife Disease Ecology written by Kenneth Wilson and published by Cambridge University Press. This book was released on 2019-11-14 with total page 693 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduces readers to key case studies that illustrate how theory and data can be integrated to understand wildlife disease ecology.
