Book Description
A Course for Nonnative Speakers of English. Genre-based approach. Includes units such as graphs and commenting on other data and research papers.
Author : John M. Swales
Publisher : University of Michigan Press ELT
Page : 272 pages
File Size : 24,88 MB
Release : 1994
Category : Foreign Language Study
ISBN :
A Course for Nonnative Speakers of English. Genre-based approach. Includes units such as graphs and commenting on other data and research papers.
Author : Adrian P. Wydeven
Publisher : Springer Science & Business Media
Page : 360 pages
File Size : 15,49 MB
Release : 2009-02-27
Category : Nature
ISBN : 0387859527
In this book, we document and evaluate the recovery of gray wolves (Canis lupus) in the Great Lakes region of the United States. The Great Lakes region is unique in that it was the only portion of the lower 48 states where wolves were never c- pletely extirpated. This region also contains the area where many of the first m- ern concepts of wolf conservation and research where developed. Early proponents of wolf conservation such as Aldo Leopold, Sigurd Olson, and Durward Allen lived and worked in the region. The longest ongoing research on wolf–prey relations (see Vucetich and Peterson, Chap. 3) and the first use of radio telemetry for studying wolves (see Mech, Chap. 2) occurred in the Great Lakes region. The Great Lakes region is the first place in the United States where “Endangered” wolf populations recovered. All three states (Minnesota, Wisconsin, and Michigan) developed ecologically and socially sound wolf conservation plans, and the federal government delisted the population of wolves in these states from the United States list of endangered and threatened species on March 12, 2007 (see Refsnider, Chap. 21). Wolf management reverted to the individual states at that time. Although this delisting has since been challenged, we believe that biological recovery of wolves has occurred and anticipate the delisting will be restored. This will be the first case of wolf conservation reverting from the federal government to the state conser- tion agencies in the United States.
Author :
Publisher :
Page : 2 pages
File Size : 50,95 MB
Release : 2001
Category : Electronic government information
ISBN :
Author : Emmanuel Do Linh San
Publisher : John Wiley & Sons
Page : 592 pages
File Size : 18,79 MB
Release : 2022-07-25
Category : Science
ISBN : 1118943287
Small Carnivores: Evolution, Ecology, Behaviour, and Conservation This book focuses on the 232 species of the mammalian Order Carnivora with an average body mass 21.5 kg. Small carnivores inhabit virtually all of the Earth's ecosystems, adopting terrestrial, semi-fossorial, (semi-)arboreal or (semi-)aquatic lifestyles. They occupy multiple trophic levels and therefore play important roles in the regulation of ecosystems, such as natural pest control, seed dispersal and nutrient cycling. In areas where humans have extirpated large carnivores, small carnivores may become the dominant predators, which may increase their abundance ("mesopredator release") to the point that they can sometimes destabilize communities, drive local extirpations and reduce overall biodiversity. On the other hand, one third of the world's small carnivores are threatened or near threatened with extinction. This results from regionally burgeoning human populations' industrial and agricultural activities, causing habitat reduction, destruction, fragmentation and pollution. Overexploitation, persecution and the impacts of introduced predators, competitors, and pathogens have also negatively affected many small carnivore species. Although small carnivores have been intensively studied over the past decades, bibliometric studies showed that they have not received the same attention given to large carnivores. Furthermore, there is huge disparity in how research efforts on small carnivores have been distributed, with some species intensively studied and others superficially or not at all. This book aims at filling a gap in the scientific literature by elucidating the important roles of, and documenting the latest knowledge on, the world's small carnivores. p"This is a book that has been needed for decades. It is the first compendium of recent research on a group of mammals which has received almost no attention before the early 1970s. This book covers a wide range of subdisciplines and techniques and should be considered a solid baseline for further research on this little-known group of highly interesting mammals. As our knowledge regarding how ecosystems function increases, then the valuable role of small carnivores and the necessity for their conservation should be regarded as of paramount importance. The topics covered in this book should therefore be of great interest not only to academics and wildlife researchers, but also to the interested layman."
Author : Paul R. Krausman
Publisher : JHU Press
Page : 468 pages
File Size : 11,13 MB
Release : 2022-09-20
Category : Nature
ISBN : 1421443961
"The book contains the essential information that wildlife biologists and managers use to manage wildlife populations today, and it gives students the information they need to pursue a profession in wildlife management and conservation"--
Author : David Maehr
Publisher : Island Press
Page : 0 pages
File Size : 46,99 MB
Release : 2001-10-01
Category : Nature
ISBN : 9781559638173
Evidence is mounting that top carnivores and other large mammals play a pivotal role in regulating ecosystem health and function, yet those are the species that are most likely to have been eliminated by past human activities. In recent decades, numerous efforts have been undertaken to return some of the species that were previously extirpated on local or regional scales. Large Mammal Restoration brings together for the first time detailed case studies of those efforts, from restoring elk in Appalachia to returning bison herds to the Great Plains to the much-publicized effort to bring back the gray wolf to Yellowstone National Park. Together these case studies offer important lessons and new ways of thinking for wildlife managers and conservation biologists involved with restoration programs. Sections examine: approaches to determining the feasibility of a restoration program critical hands-on aspects of restoring large mammals obtaining public input into the process and gaining community support for programs the potential of some species to return without direct human intervention, and what can be done to facilitate that natural colonization An introductory chapter by Reed F. Noss explores some of the reasons for restoring large mammals, as well as some of the ecological and social complications, and a concluding overview by David S. Maehr discusses the evolutionary importance of large mammal restoration. Contributors include Paul C. Paquet, Barbara Dugelby, Steven H. Fritts, Paul R. Krausman, Larry D. Harris, Johnna Roy, and many others. Large Mammal Restoration brings together in a single volume essential information on the lessons learned from previous efforts, providing an invaluable resource for researchers and students of conservation biology and wildlife management as well as for policymakers, restoration advocates, and others involved with the planning or execution of a restoration program.
Author : Brian Keith McNab
Publisher : Cornell University Press
Page : 618 pages
File Size : 22,56 MB
Release : 2002
Category : Medical
ISBN : 9780801439131
Though physiological ecology has been a discipline since the 1950s, McNab redresses a perceived absence of a theoretical framework with a comparative, inductive approach to studying vertebrate evolution and ecology. He discusses the patterns and limits of adaptation to the environment, acclimation to temperature variation and material exchange with the environment, and the energetics of locomotion and growth. The final section treats the significance of energetics for population ecology and distribution. Includes a taxonomic as well as subject index. Suitable for advanced students and researchers in the biological and ecological sciences. The Gainesville, FL-based author is referred to by the foreword writer as a keen naturalist, but his credentials are not stated. Annotation copyrighted by Book News Inc., Portland, OR.
Author : John E. Elliott
Publisher : Springer Science & Business Media
Page : 476 pages
File Size : 21,95 MB
Release : 2011-08-27
Category : Science
ISBN : 0387894322
Many books have now been published in the broad field of environmental toxicology. However, to date, none of have presented the often fascinating stories of the wildlife science, and the steps along the way from discovery of problems caused by environmental pollutants to the regulatory and non-regulatory efforts to address the problems. This book provides case by case examinations of how toxic chemical effects on wildlife have brought about policy and regulatory decisions, and positive changes in environmental conditions. Wild animal stories, whether they are about the disappearance of charismatic top predators, or of grossly deformed embryos or frogs, provide powerful symbols that can and have captured the public's imagination and have resulted in increased awareness by decision makers. It is the intent of this book to present factual and balanced overviews and summaries of the science and the subsequent regulatory processes that followed to effect change (or not). We cover a variety of chemicals and topics beginning with an update of the classic California coastal DDT story of eggshell thinning and avian reproduction to more recent cases, such as the veterinarian pharmaceutical that has brought three species of Asian vultures to the brink of extinction. Researchers, regulators, educators, NGOs and the general public will find valuable insights into the processes and mechanisms involved both in environmental scientific investigation and in efforts to effect positive change.
Author : Northern Rocky Mountain Wolf Recovery Team
Publisher :
Page : 88 pages
File Size : 16,32 MB
Release : 1980
Category : Endangered species
ISBN :
Author : Peter E. Busher
Publisher : Springer Science & Business Media
Page : 196 pages
File Size : 34,86 MB
Release : 1999-06-30
Category : Nature
ISBN : 9780306461217
This volume is a result of a symposium that was part of the Euro-American Mammal Congress. This volume is unique in that it includes reports from both Europe and North America on beaver ecology, management programmes and conservation efforts. The essence of the symposium and this volume is a reconciliation between humans and beavers.