Research Techniques in Animal Ecology


Book Description

The present biodiversity crisis is rife with opportunities to make important conservation decisions; however, the misuse or misapplication of the methods and techniques of animal ecology can have serious consequences for the survival of species. Still, there have been relatively few critical reviews of methodology in the field. This book provides an analysis of some of the most frequently used research techniques in animal ecology, identifying their limitations and misuses, as well as possible solutions to avoid such pitfalls. In the process, contributors to this volume present new perspectives on the collection, analysis, and interpretation of data. Research Techniques in Animal Ecology is an overarching account of central theoretical and methodological controversies in the field, rather than a handbook on the minutiae of techniques. The editors have forged comprehensive presentations of key topics in animal ecology, such as territory and home range estimates, habitation evaluation, population viability analysis, GIS mapping, and measuring the dynamics of societies. Striking a careful balance, each chapter begins by assessing the shortcomings and misapplications of the techniques in question, followed by a thorough review of the current literature, and concluding with possible solutions and suggested guidelines for more robust investigations.




The Wildlife Techniques Manual


Book Description

A standard text in a variety of courses, the Techniques Manual, as it is commonly called, covers every aspect of modern wildlife management and provides practical information for applying the hundreds of methods described in its pages. To effectively incorporate the explosion of new information in the wildlife profession, this latest edition is logically organized into a two-volume set: Volume 1 is devoted to research techniques and Volume 2 focuses on management methodologies.




Investigation and Management of Disease in Wild Animals


Book Description

- 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.




Techniques in Wildlife Investigations


Book Description

Techniques for Wildlife Investigations emphasizes the design of field studies and the statistical inferences that can be made from observed changes in animal abundance and populations. The information presented here is of value not only for wildlife management but also for social and economic decision-making related to the environmental effects of human activities on wildlife populations. Biologists, ecologists, biometricians, fish and game managers will find this book invaluable in their work.




Wildlife Forensic Investigation


Book Description

Wildlife forensics is the application of forensic science to the conservation and protection of non-domesticated animals, both in the wild and in captivity. Providing an in-depth introduction to this rapidly evolving field, Wildlife Forensic Investigation: Principles and Practice also chronicles aspects of the history of management, conservation, and environmental protection, with an emphasis on their global importance in the twenty-first century. The book examines the crucial role of wildlife forensic investigation with regard to live animals, dead animals and samples and covers national, regional, and international legislation. While the text particularly focuses on forensic science as it relates to wild animals, it also includes mention of plants and habitats because of their relevance to conservation. The book discusses animal welfare as well as the damage that can be inflicted on humans and property by wildlife. Offering access to sound evidence based on good science and obtained using the best available practices, the book is enhanced by case studies from experts who describe some of their own work. This resource is essential for those involved in a range of endeavours, including investigating wildlife crime, identifying animal remains, ascertaining the circumstances of death of wild species, and other legal proceedings and activities concerning wildlife. The forensic skills described in this book can be applied to a wide range of activities (not necessarily involving the legal process), including environmental impact assessments, insurance claims, governmental and other enquiries, checking of trading standards and the inspection of (for instance) pet-shops, animal boarding establishments, and zoological collections. The authors point out that one of the most important requirements of those persons involved in wildlife forensic work is to retain an open mind. Such personnel should also be conscious of new developments and evolving techniques and be able to anticipate situations where their investigative and scientific skills might be used to advantage—so-called "horizon scanning". Examples of these are given.




Wildlife Forensics


Book Description

Wildlife Forensics: Methods and Applications provides an accessible and practical approach to the key areas involved in this developing subject. The book contains case studies throughout the text that take the reader from the field, to the lab analysis to the court room, giving a complete insight into the path of forensic evidence and demonstrating how current techniques can be applied to wildlife forensics. The book contains approaches that wildlife forensic investigators and laboratory technicians can employ in investigations and provides the direction and practical advice required by legal and police professionals seeking to gain the evidence needed to prosecute wildlife crimes. The book will bring together in one text various aspects of wildlife forensics, including statistics, toxicology, pathology, entomology, morphological identification, and DNA analysis. This book will be an invaluable reference and will provide investigators, laboratory technicians and students in forensic Science/conservation biology classes with practical guidance and best methods for criminal investigations applied to wildlife crime. Includes practical techniques that wildlife forensic investigators and laboratory technicians can employ in investigations. Includes case studies to illustrate various key methods and applications. Brings together diverse areas of forensic science and demonstrates their application specifically to the field of wildlife crime. Contains methodology boxes to lead readers through the processes of individual techniques. Takes an applied approach to the subject to appeal to both students of the subject and practitioners in the field. Includes a broad introduction to what is meant by 'wildlife crime', how to approach a crime scene and collect evidence and includes chapters dedicated to the key techniques utilized in wildlife investigations. Includes chapters on wildlife forensic pathology; zooanthropological techniques; biological trace evidence analysis; the importance of bitemark evidence; plant and wildlife forensics; best practices and law enforcement.







Animal Investigators


Book Description

Inside the Clark R. Bavin U.S. Fish and Wildlife Service Forensics Laboratory lies a rarely seen world, a CSI for wildlife, where a walk-in freezer contains carcasses and animal parts awaiting necropsies (animal autopsies); shelves and drawers hold pills, rugs, carvings, and countless other products made from parts of endangered animals; and a dedicated group of forensic scientists is responsible for victims from thirty thousand animal species. Accomplished environmental journalist Laurel A. Neme goes behind the scenes at the wildlife forensics lab -- the only crime lab of its kind -- to reveal how its forensic scientists and the agents of the U.S. Fish and Wildlife Service are working to investigate wildlife crimes, protect endangered species, and stem illegal wildlife trafficking, the third largest illegal trade in the world. In three fascinating cases -- headless walrus washed up on the shores of Alaska, black bears killed for the healing powers of their gallbladders, and gorgeous feathered headdresses secretly shipped to the United States from the Amazon -- Neme traces the USFWS's daring undercover investigations and how the scientists' innovative forensic techniques provide conclusive evidence of a crime. Throughout, she underscores the staggering international scope of the supply and demand for wildlife and animal parts. Filled with the suspense and thrilling detail of a crime novel yet driven by the all-too-real drama of a small band of scientists and investigators battling a lucrative, high-stakes underground industry, Animal Investigators is an engrossing account of crime and cutting-edge science.




Camera Traps in Animal Ecology


Book Description

Remote photography and infrared sensors are widely used in the sampling of wildlife populations worldwide, especially for cryptic or elusive species. Guiding the practitioner through the entire process of using camera traps, this book is the first to compile state-of-the-art sampling techniques for the purpose of conducting high-quality science or effective management. Chapters on the evaluation of equipment, field sampling designs, and data analysis methods provide a coherent framework for making inferences about the abundance, species richness, and occupancy of sampled animals. The volume introduces new models that will revolutionize use of camera data to estimate population density, such as the newly developed spatial capture–recapture models. It also includes richly detailed case studies of camera trap work on some of the world’s most charismatic, elusive, and endangered wildlife species. Indispensible to wildlife conservationists, ecologists, biologists, and conservation agencies around the world, the text provides a thorough review of the subject as well as a forecast for the use of remote photography in natural resource conservation over the next few decades.