Diseases Of Wild Waterfowl

Author : Gary A. Wobeser
Publisher : Springer Science & Business Media
Page : 318 pages
File Size : 46,8 Mb
Release : 2012-12-06
Category : Science
ISBN : 9781461559511

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Diseases of Wild Waterfowl by Gary A. Wobeser Pdf

Management of wild waterfowl has become increasingly intensive. Many birds now hatch in managed nesting cover or in artificial nesting structures, use man-made wetlands, and winter on crowded refuges while consuming a grain diet The water they use is often limited in supply and may contain residues from its many prior users. Unfortunately, intensified management often results in new problems, among which disease is important There are many similarities between the current form of management used for some waterfowl and that used in domestic animals. In both, the objective is to maintain a healthy, productive population. Dealing with health problems in waterfowl will benefit from combining the skills of veterinary medicine and wildlife ecology. Revisiting this book after 15 years allowed me to consider changes at the interface between the two disciplines. Veterinary medicine traditionally has been concerned with the individual and with treating sick animals, while the ecologist is concerned with populations and the manager has limited interest in treating sick birds. During this period there has been a marked increase in awareness among veterinarians that they have a responsibility in wildlife and conservation biology. Curricula of many veterinary colleges now include material on non-domestic animals and attempt to put disease in an ecological context. Also during this time, waterfowl managers have become more aware of disease as a factor in population biology and there are early attempts to put numbers to "disease" in models of continental waterfowl populations.

Author : Gary A. Wobeser
Publisher : Springer
Page : 0 pages
File Size : 43,9 Mb
Release : 1982-01-14
Category : Medical
ISBN : 1489953361

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Diseases of Wild Waterfowl by Gary A. Wobeser Pdf

Author : Nancy J. Thomas,D. Bruce Hunter,Carter T. Atkinson
Publisher : John Wiley & Sons
Page : 496 pages
File Size : 45,5 Mb
Release : 2008-01-09
Category : Medical
ISBN : 9780470344361

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Infectious Diseases of Wild Birds by Nancy J. Thomas,D. Bruce Hunter,Carter T. Atkinson Pdf

Free-living birds encounter multiple health hazards brought on by viruses, bacteria, and fungi, some which in turn can significantly impact other animal populations and human health. Newly emerging diseases and new zoonotic forms of older diseases have brought increased global attention to the health of wild bird populations. Recognition and management of these diseases is a high priority for all those involved with wildlife. Infectious Diseases of Wild Birds provides biologists, wildlife managers, wildlife and veterinary health professionals and students with the most comprehensive reference on infectious viral, bacterial and fungal diseases affecting wild birds. Bringing together contributions from an international team of experts, the book offers the most complete information on these diseases, their history, causative agents, significance and population impact. Focusing on more than just treatment, special emphasis is given to disease processes, recognition and epidemiology.

Author : Carter T. Atkinson,Nancy J. Thomas,D. Bruce Hunter
Publisher : John Wiley & Sons
Page : 609 pages
File Size : 40,7 Mb
Release : 2009-03-20
Category : Medical
ISBN : 9780813804576

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Parasitic Diseases of Wild Birds by Carter T. Atkinson,Nancy J. Thomas,D. Bruce Hunter Pdf

Parasitic Diseases of Wild Birds provides thorough coverage of major parasite groups affecting wild bird species. Broken into four sections covering protozoa, helminths, leeches, and arthropod parasites, this volume provides reviews of the history, disease, epizootiology, pathology, and population impacts caused by parasitic disease. Taking a unique approach that focuses on the effects of the parasites on the host, Parasitic Diseases of Wild Birds fills a unique niche in animal health literature.

Author : Anonim
Publisher : Geological Survey (USGS)
Page : 444 pages
File Size : 55,5 Mb
Release : 1999
Category : Medical
ISBN : CORNELL:31924097771566

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Field Manual of Wildlife Diseases by Anonim Pdf

Author : Gary A. Wobeser
Publisher : John Wiley & Sons
Page : 296 pages
File Size : 54,8 Mb
Release : 2013-05-07
Category : Medical
ISBN : 9781118708873

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Essentials of Disease in Wild Animals by Gary A. Wobeser Pdf

The interrelationship between wild animal, domestic animals and human health is appreciated now more than ever before. This is because of the recognition of the involvement of wild animals in diseases of humans and domestic animals, the impact of disease on wildlife management and conservation biology, recognition of new forms of environmental contamination, and academic interest in disease as an ecological factor. This is the first introductory level book about disease in wild animals that deals with basic subjects such as the nature of disease, what causes disease, how disease is described and measured, how diseases spread and persist and the effects of disease on individual animals and populations. In contrast to authors of many other veterinary books, Gary A. Wobeser takes a more general approach to health in wild animals, recognizing that disease is one ecological factor among many and that disease can never be considered satisfactorily in isolation. Rather than focus on individual causative agents and their effect on the individual animal, the emphasis is on why disease occurred, and on the complex interactions that occur among disease agents, the environment and host populations. Written by a leading researcher in wildlife diseases, this book will fill a knowledge gap for those called to work with disease in wild animals who lack experience or training in the general features of disease as they relate to wild animals. Veterinarians, ecologists, wildlife biologists, population biologists and public health workers will find this book invaluable.

Author : Ronald M. Windingstad,Cynthia J. Laitman
Publisher : Unknown
Page : 16 pages
File Size : 55,8 Mb
Release : 1988
Category : Anatidae
ISBN : WISC:89043819846

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Ducks Get Sick, Too! by Ronald M. Windingstad,Cynthia J. Laitman Pdf

Author : Dolorés Gavier-Widen,Anna Meredith,J. Paul Duff
Publisher : John Wiley & Sons
Page : 581 pages
File Size : 40,9 Mb
Release : 2012-07-10
Category : Medical
ISBN : 9781118342435

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Infectious Diseases of Wild Mammals and Birds in Europe by Dolorés Gavier-Widen,Anna Meredith,J. Paul Duff Pdf

INFECTIOUS DISEASES OF WILD MAMMALS AND BIRDS IN EUROPE Infectious Diseases of Wild Mammals and Birds in Europe is a key resource on the diagnosis and treatment of infectious diseases in European wildlife that covers the distinctive nature of diseases as they occur in Europe, including strains, insect vectors, reservoir species, and climate, as well as geographical distribution of the diseases and European regulations for reporting, diagnosis and control. Divided into sections on viral infections, bacterial infections, fungal and yeast infections, and prion infections, this definitive reference provides valuable information on disease classification and properties, causative agents, epidemiology, pathogenesis, and implications for human, domestic and wild animal health. KEY FEATURES: Brings together extensive research from many different disciplines into one integrated and highly useful definitive reference. Zoonotic risks to human health, as well as risks to pets and livestock are highlighted. Each disease is covered separately with practical information on the animal species in which the disease has been recorded, clinical signs of the disease, diagnostic methods, and recommended treatments and vaccination. Wildlife vaccination and disease surveillance techniques are described. Examines factors important in the spread of disease such as changing climate, the movement of animals through trade, and relaxations in the control of wild animal populations. Written by a team of pathologists, epidemiologists and clinicians from across Europe, this is the definitive resource for infectious diseases of wild mammals and birds in Europe. It will be an invaluable reference for veterinarians, conservation biologists, epidemiologists, and wildlife researchers, managers, rehabilitators and students.

Author : Milton Friend
Publisher : Unknown
Page : 6 pages
File Size : 45,6 Mb
Release : 1989
Category : Chicken cholera
ISBN : MINN:31951D01224027H

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Waterfowl Management Handbook by Milton Friend Pdf

Author : Milton Friend,J. Christian Franson,U.S. Geological Survey
Publisher : CreateSpace
Page : 438 pages
File Size : 51,9 Mb
Release : 2012-08-01
Category : Science
ISBN : 1479177725

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Field Manual of Wildlife Diseases - General Field Procedures and Diseases of Birds by Milton Friend,J. Christian Franson,U.S. Geological Survey Pdf

DO WILDLIFE DISEASES REALLY MATTER? The waterfowl manager who wakes up one morning to find ten thousand dead and dying birds in the marsh would think so. Yet virtually every wild bird and mammal harbors at least a few parasites seemingly without obvious adverse consequences. Parasites, viruses, bacteria, and fungi are component parts of the ecosystems in which wildlife are found, but do not necessarily cause disease. Millennia of coevolution have engendered a modus vivendi that assures the survival of both host and parasite populations. Then why the ten thousand sick and dying birds? Ecosystems are changing. Waterfowl are concentrated on shrinking wetlands and remain there for longer periods of time, facilitating bird-to-bird spread of the bacteria that cause avian cholera. Or permitting the buildup of parasites in their hosts from a small, relatively benign number to massive numbers that cause disease and death. Water quality of wetlands changes, favoring the production of deadly botulinum toxin by bacteria and its mobilization up the food chain to waterfowl. New, totally artificial habitats are created with unpredictable results. The extreme temperature, salinity, and other conditions of the Salton Sea have created an unusual ecosystem in which botulism occurs in fish and in birds through biological cycles that are not yet understood. Wetland loss in southern California leaves few alternative places for waterbirds to go, so they are attracted to the Salton Sea. Behavior changes. Mallard ducks take up residence on the ponds and lakes of city parks and lose their migratory habits. They share these bodies of water with exotic species, such as Muscovy ducks that have also taken up residence there after introduction by people, setting the scene for outbreaks of duck plague, and creating the risk of spread to migratory waterfowl that also use these areas. Raccoons and skunks become well adapted to urban life, bringing rabies and canine distemper with them into the city. The environment changes the physiology of wild animals. Human activity introduces into wildlife habitats chemical compounds that adversely affect physiological processes such as reproduction and immune responsiveness. These compounds become incorporated into the ecosystems, often becoming more concentrated as they move up food chains. Their effects can influence wildlife populations. Some of these endocrine-disrupting chemicals, such as chlorinated hydrocarbons (DDE, PCBs), interfere with normal endocrine function by mimicking natural hormones, with resulting eggshell thinning and breakage. Effects of these chemical compounds on immune-system responses to infectious and parasitic agents are less well understood. What to do? Incorporating disease-prevention measures into wildlife management practices requires more information than is usually available. The information-gathering process must begin in the field. Field biologists must monitor disease occurrence. This Field Manual is a valuable aid in identifying the diseases that are likely to be present, and in giving guidance on the gathering and treatment of specimens needed to establish the diagnosis in the laboratory. But the wildlife field biologist is in a position to provide valuable information that goes beyond the collection of samples from sick and dead individuals. Although diseased individuals are the basic unit of surveillance, the occurrence of disease must be put into ecological perspective. A careful description of the ecological setting in which the disease is occurring, and any changes that have occurred over time, are ultimately as important as a careful description of the lesions observed in the individual, if the epidemiology of that disease is to be understood, and the disease prevented through sound wildlife-management practices.

Author : G.A. Wobeser
Publisher : Springer Science & Business Media
Page : 257 pages
File Size : 44,5 Mb
Release : 2013-04-17
Category : Science
ISBN : 9781475756098

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Investigation and Management of Disease in Wild Animals by G.A. Wobeser Pdf

- A hypothesis is a proposition, set forth as an explanation for the occurrence of a phenomenon, that can be tested. - The basis for scientific investigation is the collection of information to formulate and test hypotheses. - Experimental methods measure the effect of manipulations caused by the investigator; observational methods collect information about naturally occurring events. - There are three sub-types of experimental techniques that differ in the way subjects are chosen for inclusion in the study, in the amount of control that the investigator has over variables, and in the method used to assess changes in other variables. - Descriptive observational studies dominate the early phase of most investigations and involve the description of disease-related events in the population. Associations among factors may be observed but the strength of the associations is not measured. - Analytical observation al techniques are of three basic types: prevalence surveys, case:control studies, and incidence or cohort studies. All attempt to explain the nature of relationships among various factors and to measure the strength of associations. - Prevalence surveys and case:control studies deal with disease existing at the time of the study; incidence studies are concerned with the development of disease over time. - Observational studies may be retrospective, using existing data, or prospective with collection of new information.

Author : Nancy J. Thomas,D. Bruce Hunter,Carter T. Atkinson
Publisher : Wiley-Blackwell
Page : 496 pages
File Size : 48,7 Mb
Release : 2008-01-09
Category : Medical
ISBN : 9780470344361

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Infectious Diseases of Wild Birds by Nancy J. Thomas,D. Bruce Hunter,Carter T. Atkinson Pdf

Free-living birds encounter multiple health hazards brought on by viruses, bacteria, and fungi, some which in turn can significantly impact other animal populations and human health. Newly emerging diseases and new zoonotic forms of older diseases have brought increased global attention to the health of wild bird populations. Recognition and management of these diseases is a high priority for all those involved with wildlife. Infectious Diseases of Wild Birds provides biologists, wildlife managers, wildlife and veterinary health professionals and students with the most comprehensive reference on infectious viral, bacterial and fungal diseases affecting wild birds. Bringing together contributions from an international team of experts, the book offers the most complete information on these diseases, their history, causative agents, significance and population impact. Focusing on more than just treatment, special emphasis is given to disease processes, recognition and epidemiology.

Author : Darrell Whitworth,Scott Newman,Taej Mundkur,Phil Harris,Food and Agriculture Organization of the United Nations
Publisher : Food & Agriculture Org.
Page : 124 pages
File Size : 43,8 Mb
Release : 2007
Category : Medical
ISBN : 925105908X

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Wild Birds and Avian Influenza by Darrell Whitworth,Scott Newman,Taej Mundkur,Phil Harris,Food and Agriculture Organization of the United Nations Pdf

The highly pathogenic avian influenza H5N1 strain has spread from domestic poultry to a large number of species of free-ranging wild birds, including non-migratory birds and migratory birds that can travel thousands of kilometers each year. The regular contact and interaction between poultry and wild birds has increased the urgency of understanding wild bird diseases and the transmission mechanisms that exist between the poultry and wild bird sectors, with a particular emphasis on avian influenza. Monitoring techniques, surveillance, habitat use and migration patterns are all important aspects of wildlife and disease ecology that need to be better understood to gain insights into disease transmission between these sectors. This manual contains chapters on the basic ecology of avian influenza and wild birds, capture and marking techniques (ringing, color marking and satellite telemetry), disease sampling procedures, and field survey and monitoring procedures.--Publisher's description.

Author : John William Davis
Publisher : Ames : Iowa State University Press
Page : 358 pages
File Size : 43,9 Mb
Release : 1971
Category : Medical
ISBN : MINN:31951000015772T

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Infectious and Parasitic Diseases of Wild Birds by John William Davis Pdf

Author : Victoria Roberts
Publisher : Whittet Books
Page : 0 pages
File Size : 45,6 Mb
Release : 2009
Category : Poultry
ISBN : 1873580789

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Diseases of Free-range Poultry by Victoria Roberts Pdf

This text is aimed at people who wish to keep their free range hens or waterfowl healthy. Some knowledge of how a bird's body system works helps to explain why certain conditions are more likely to occur.