Download or read book Determining Optimal Radio Collar Sample Sizes for Monitoring Barren ground Caribou Populations written by William James Rettie and published by . This book was released on 2017 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: To detect moderate changes in annual adult female survival (e.g. 6-7% per year, persistent for three or more years) would require 80 or more radio collars in a herd and the monitoring would need to be conducted in two or more discrete time periods. The number of radio collared animals required is the same for all herds.
Download or read book Sample Sizes of Collared Barren ground Caribou Required to Estimate Herd Size in Winter and Fall Management Areas to Allow Assessment of Harvest Risk written by John Boulanger and published by . This book was released on 2016 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: One challenge to harvest management of caribou herds on winter range areas is the uncertainty of caribou herd status when winter ranges of multiple herds overlap. In this paper I develop a methodology to estimate relative herd sizes on winter range management polygons through the use of location data from collared caribou and herd size estimates from calving ground surveys. In this paper, analyses were carried out to assist in recommending numbers of collars needed to reliably define proportions of each herd in harvest areas in fall and winter, using multi-strata models, existing management areas, and information from 2010-2013 on collar locations and herd size. In general, at least 20 collars would be needed for each herd in each area to define herd distribution and harvest risk with acceptable precision.
Download or read book Technical Rationale to Increase the Number of Satellite Collars on the Bathurst Caribou Herd written by Jan Adamczewski and published by . This book was released on 2016 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: Satellite and/or GPS-satellite radio collars are used for many applications in monitoring of all herds of migratory barren-ground caribou in North America. Until 2015, a maximum of 20 collars had been used on the Bathurst herd, all on cows, and at times there have been as few as eight to nine collared caribou in the herd. An independent review of the Government of the Northwest Territories barren-ground caribou program in 2009 recommended increases in radio collar numbers for all herds, and particularly for herds like the Bathurst where the collar numbers were low. In 2015, the number of Bathurst collars was increased to 50 (30 on cows and 20 on bulls) with approval of the Tłı̜cho Government. This document briefly reviews the main uses of radio collars in caribou monitoring and management, outlines recommended numbers of collars/herd for particular uses, and provides a rationale for increasing the number of collars on the Bathurst herd to 65, with some of these being on bulls. Areas of high priority in management for this herd in 2016 were in assigning and managing harvest from this herd in the winter, in monitoring mortality pattern rates in cows, and in designing reliable population surveys in June. All applications of collar information would benefit from higher collar numbers, including greater confidence in monitoring surveys and in assessing caribou range use in relation to development such as mines and roads.
Download or read book A National Ecological Framework for Canada written by Ecological Stratification Working Group (Canada) and published by Centre for Land and Biological Resources Research ; Hull, Quebec : State of the Environment Directorate. This book was released on 1996 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: [An] expanded attribute database [that] includes attribute data for the ecoprovince level of generalization.
Download or read book Camera Traps in Animal Ecology written by Allan F. O'Connell and published by Springer Science & Business Media. This book was released on 2010-10-05 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Noninvasive Survey Methods for Carnivores written by Robert A. Long and published by Island Press. This book was released on 2012-09-26 with total page 399 pages. Available in PDF, EPUB and Kindle. Book excerpt: The status of many carnivore populations is of growing concern to scientists and conservationists, making the need for data pertaining to carnivore distribution, abundance, and habitat use ever more pressing. Recent developments in “noninvasive” research techniques—those that minimize disturbance to the animal being studied—have resulted in a greatly expanded toolbox for the wildlife practitioner. Presented in a straightforward and readable style, Noninvasive Survey Methods for Carnivores is a comprehensive guide for wildlife researchers who seek to conduct carnivore surveys using the most up-to-date scientific approaches. Twenty-five experts from throughout North America discuss strategies for implementing surveys across a broad range of habitats, providing input on survey design, sample collection, DNA and endocrine analyses, and data analysis. Photographs from the field, line drawings, and detailed case studies further illustrate on-the-ground application of the survey methods discussed. Coupled with cutting-edge laboratory and statistical techniques, which are also described in the book, noninvasive survey methods are effi cient and effective tools for sampling carnivore populations. Noninvasive Survey Methods for Carnivores allows practitioners to carefully evaluate a diversity of detection methods and to develop protocols specific to their survey objectives, study area, and species of interest. It is an essential resource for anyone interested in the study of carnivores, from scientists engaged in primary research to agencies or organizations requiring carnivore detection data to develop management or conservation plans.
Download or read book Wildlife Demography written by John R. Skalski and published by Elsevier. This book was released on 2010-07-20 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wildlife Demography compiles the multitude of available estimation techniques based on sex and age data, and presents these varying techniques in one organized, unified volume. Designed to guide researchers to the most appropriate estimator based upon their particular data set and the desired level of study precision, this book provides quantitative consideration, statistical models, estimator variance, assumptions and examples of use. The authors focus on estimation techniques using sex and age ratios because this data is relatively easy to collect and commonly used by wildlife management. - Applicable to a wide array of wildlife species, including game and non-game birds and mammals - Features more than 100 annotated examples illustrating application of statistical methods - Includes more than 640 references of the analysis of nontagging data and the factors that may influence interpretation - Derives historical and ad hoc demographic methods in a modern statistical framework
Download or read book Adaptive Sampling written by Steven K. Thompson and published by Wiley-Interscience. This book was released on 1996-06-07 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offering a viable solution to the long-standing problem of estimating the abundance of rare, clustered populations, adaptive sampling designs are rapidly gaining prominence in the natural and social sciences as well as in other fields with inherently difficult sampling situations. In marked contrast to conventional sampling designs, in which the entire sample of units to be observed is fixed prior to the survey, adaptive sampling strategies allow for increased sampling intensity depending upon observations made during the survey. For example, in a survey to assess the abundance of a rare animal species, neighboring sites may be added to the sample whenever the species is encountered during the survey. In an epidemiological survey of a contagious or genetically linked disease, sampling intensity may be increased whenever prevalence of the disease is encountered. Written by two acknowledged experts in this emerging field, this book offers researchers their first comprehensive introduction to adaptive sampling. An ideal reference for statisticians conducting research in survey designs and spatial statistics as well as researchers working in the environmental, ecological, public health, and biomedical sciences. Adaptive Sampling: Provides a comprehensive, fully integrated introduction to adaptive sampling theory and practice Describes recent research findings Introduces readers to a wide range of adaptive sampling strategies and techniques Includes numerous real-world examples from environmental pollution studies, surveys of rare animal and plant species, studies of contagious diseases, marketing surveys, mineral and fossil-fuel assessments, and more
Download or read book Bears written by Christopher Servheen and published by IUCN. This book was released on 1999 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Of the status of bear species by distribution / Christopher Servheen -- An overview of bear conservation planning and implementation / Bernard Peyton, Christopher Servheen, and Stephen Herrero -- Genetics of the bears of the world / Lisette Waits, David Paetkau, and Curtis Strobeck -- The trade in bears and bear parts / Christopher Servheen -- Brown bear conservation action plan for North America (Ursus arctos). Alaska / Sterling D. Miller and John Schoen. Canada / Bruce McLellan and Vivian Banci. United States: grizzly bear in the Lower 48 / Christopher Servheen -- Brown bear conservation action plan for Europe (Ursus arctos). Austria / Georg Rauer. Bulgaria / Nikolai Spassov and G. Spiridonov. Finland / Erik S. Nyholm and Kai-Eerik Nyholm. France / Jean Jacques Camarra. Greece / George Mertzanis. Italy (Abruzzo) / Giorgio Boscagli. Italy (Trentino) / Fabio Osti. Norway / Ole Jakob Sørensen, Jon E. Swenson, and Tor Kvam. Poland / Witold Frackowiak, Roman Gula, and Kajetan Perzanowski. Romania / Ovidiu Ionescu. Slovakia / Pavel Hell and Slavomir Find'o. Spain: eastern and western Cantabria. Eastern Cantabrian subpopulation / Anthony P. Clevenger and Francisco J. Purroy. Western Cantabrian subpopulation / Javier Naves Cienfuegos and Carlos Nores Quesada. Sweden / Jon E. Swenson, Finn Sandegren, Anders Bjärvall, Robert Franzén, Arne Söderberg, and Petter Wabakken. Former Yugoslavia / Djuro Huber and Miha Adamic -- Brown bear conservation action plan for Asia (Ursus arctos). China: Heilonjiang black and brown bears / Cheng Jizhen. India / S. Sathyakumar. Japan: Hokkaido / Tsutomu Mano and Joseph Moll. Mongolia: Gobi bear / Thomas McCarthy. Russia / Igor Chestin -- American black bear conservation action plan (Ursus americanus) / Michael R. Pelton, Alex B. Coley, Thomas H. Eason, Diana L. Doan Martinez, Joel A. Pederson, Frank T. van Manem and Keith M. Weaver -- Spectacled bear conservation action plan (Tremarctos ornatus) / Bernard Peyton. Bolivia / Damián I. Rumiz and Jorge Salazar. Colombia / Jorge Orejuela and Jeffrey P. Jorgenson. Ecuador / Luis Suárez. Perú / Bernard Peyton, coordinator. Venezuela / Edgard Yerena, coordinator -- Asiatic black bear conservation action plan (Ursus thibetanus). China / Ma Yiqing and Li Xiaomin. India / S. Sathyakumar. Japan / Toshihiro Hazumi. Russia / Igor Chestin and Victor Yudin. Taiwan: Formosan black bear / Ying Wang. Vietnam: black bear and sun bear / Do Dinh Sam -- Sun bear conservation action plan (Helarctos malayanus) / Christopher Servheen. Lao PDR / Richard E. Salter -- Sloth bear conservation action plan (Melursus ursinus) / David L. Garshelis, Anup R. Joshi, James L.D. Smith, and Clifford G. Rice -- Giant panda conservation action plan (Ailuropoda melanoleuca) / Donald G. Read and Jien Gong -- Global status and management of the polar bear (Ursus maritimus) / IUCN/SSC Polar Bear Specialist Group.
Download or read book Field Manual of Wildlife Diseases written by and published by Geological Survey (USGS). This book was released on 1999 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Techniques in Animal Ecology written by Luigi Boitani and published by Columbia University Press. This book was released on 2000-06-01 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Arctic Ecosystems in a Changing Climate written by F. Stuart Chapin III and published by Academic Press. This book was released on 2012-12-02 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: The arctic region is predicted to experience the earliest and most pronounced global warming response to human-induced climatic change. This book synthesizes information on the physiological ecology of arctic plants, discusses how physiological processes influence ecosystem processes, and explores how climate warming will affect arctic plants, plant communities, and ecosystem processes. - Reviews the physiological ecology of arctic plants - Explores biotic controls over community and ecosystems processes - Provides physiological bases for predicting how the Arctic will respond to global climate change
Download or read book The Return of Caribou to Ungava written by A. T. Bergerud and published by McGill-Queen's Press - MQUP. This book was released on 2008 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt: How a caribou population went from the brink of extinction in the 1950s to the largest herd in the world in the late 1980s - and whether it can survive today's environmental changes.
Download or read book Foxes Wolves Jackals and Dogs written by Joshua Ross Ginsberg and published by IUCN. This book was released on 1990 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book To Life written by Linda Weintraub and published by Univ of California Press. This book was released on 2012-09-01 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: This title documents the burgeoning eco art movement from A to Z, presenting a panorama of artistic responses to environmental concerns, from Ant Farms anti-consumer antics in the 1970s to Marina Zurkows 2007 animation that anticipates the havoc wreaked upon the planet by global warming.
Download or read book Nanutset Ch u Q udi Gu written by Karen K. Gaul and published by . This book was released on 2007 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanistic Home Range Analysis MPB 43 written by Paul R. Moorcroft and published by Princeton University Press. This book was released on 2013-10-31 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spatial patterns of movement are fundamental to the ecology of animal populations, influencing their social organization, mating systems, demography, and the spatial distribution of prey and competitors. However, our ability to understand the causes and consequences of animal home range patterns has been limited by the descriptive nature of the statistical models used to analyze them. In Mechanistic Home Range Analysis, Paul Moorcroft and Mark Lewis develop a radically new framework for studying animal home range patterns based on the analysis of correlated random work models for individual movement behavior. They use this framework to develop a series of mechanistic home range models for carnivore populations. The authors' analysis illustrates how, in contrast to traditional statistical home range models that merely describe pattern, mechanistic home range models can be used to discover the underlying ecological determinants of home range patterns observed in populations, make accurate predictions about how spatial distributions of home ranges will change following environmental or demographic disturbance, and analyze the functional significance of the movement strategies of individuals that give rise to observed patterns of space use. By providing researchers and graduate students of ecology and wildlife biology with a more illuminating way to analyze animal movement, Mechanistic Home Range Analysis will be an indispensable reference for years to come.
