Download or read book Activity and Movement of Free ranging Thirteen lined Ground Squirrels in Different Habitats written by Susan M. Schumacher and published by . This book was released on 1989 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Movements and Activity Patterns in a Population of Thirteen lined Ground Squirrels Itasca State Park Minnesota written by Bonnie Marie Hohn and published by . This book was released on 1966 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conservation in Highly Fragmented Landscapes written by Mark Schwartz and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mark W. Schwartz Soon after we came into extensive meadows: and I was assured that those meadows continue for a hundred and fifty miles. being in winter drowned lands and marshes. By the dryness of the season they were now beautiful pastures, and here presented itself one of the most delightful prospects I have ever beheld; all low grounds being meadow, and without wood, and all of the high grounds being covered with trees and appearing like islands: the whole scene seemed an elysium. Capt. Thomas Morris. 1791 I am sitting in a 60-mile-an-hour bus sailing over a highway originally laid out for horse and buggy. The ribbon of concrete has been widened and widened until the field fences threaten to topple into the road cuts. In the narrow thread of sod between the shaved banks and the toppling fences grow the relics of what once was Illinois: the prairie.
Download or read book Animal friendly methods for rodent behavioral testing in neuroscience research written by Raffaele d’Isa and published by Frontiers Media SA. This book was released on 2024-07-03 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rodent behavioral testing has been used to study brain functions since the 1890s and has become a gold-standard model in modern neuroscience. Up to the 1950s, most behavioral tests on laboratory rodent models were based on punishments and rewards. Both approaches can lead to a certain degree of animal pain or suffering. Punishments involved the employment of painful stimuli, typically electric shocks. Passive avoidance and fear conditioning tests, among the most widely used behavioral paradigms used to evaluate learning and memory in rodents, can be performed using only a single brief shock. Other tests, such as the active avoidance, might require up to tens or hundreds of shocks, strongly challenging the psychological welfare of the model animals. On the other hand, tests based on rewards, which apparently may seem more ethical, actually still induce suffering in the animals, as food rewards are almost always associated with a food restriction protocol, in order to motivate food-seeking behavior. Rodents are starved for days before starting the test and kept under food restriction for the whole duration of the test. The distress during the testing session is only a minimal part compared to the stress lived outside of the testing session, which is prolonged and continuous. Analogously, liquid rewards commonly rely on a previous water restriction protocol to use thirst as motivation. Animal stress is not only an ethical issue per se, but also an important factor potentially impacting on the reliability and reproducibility of experimental results.
Download or read book Squirrels of the World written by Richard W. Thorington, Jr. and published by JHU Press. This book was released on 2012-08-03 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Squirrels of the World, written by scientists with more than 100 years of collective experience studying these popular mammals, is the first comprehensive examination of all 285 species of squirrels worldwide. The authors reveal virtually every detail of the family Sciuridae, which includes ground squirrels, tree squirrels, flying squirrels, prairie dogs, and chipmunks. Each species—from the familiar gray squirrel of American backyards to the exotic and endangered woolly flying squirrel of Pakistan—is described in a detailed account that includes distinguishing characteristics, ecology, natural history, conservation status, and current threats to its existence. Squirrels of the World includes • stunning color photographs that document rare and unusual squirrels as well as common varieties• evolution, morphology, ecology, and conservation status• colorful range maps marking species distribution• images of the skull of each genus of squirrel• extensive references -- Lawrence Heaney, Curator and Head of the Division of Mammals, The Field Museum (Chicago)
Download or read book Behavioural Biology Abstracts written by and published by . This book was released on 1991 with total page 1068 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Natural History of Canadian Mammals written by Donna Naughton and published by University of Toronto Press. This book was released on 2012-01-01 with total page 985 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The selection of species to include in this book was based on two principles: 1. Those that in recent times had a viable, naturally occurring wild population in Canada, its continental islands, or in the marine waters of its continental shelf ... [and] 2. Species introduced into Canada by humans"--P. xiv.
Download or read book Rattlesnakes written by Laurence M. Klauber and published by Univ of California Press. This book was released on 1982 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Their habits, life histories, and influence on mankind.
Download or read book North American Rodents written by David J. Hafner and published by IUCN. This book was released on 1998 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first comprehensive treatment of North American rodents of conservation concern. This action plan summarizes the rodent fauna of North America and provides available information on every rodent taxon that has been considered to be of conservation concern by state, provincial and private conservation agencies and regional experts. It is hoped that the survey provided in this action plan will serve as a common ground for all these parties in drawing up conservation strategies for rodents.
Download or read book Rodent Societies written by Jerry O. Wolff and published by University of Chicago Press. This book was released on 2008-09-15 with total page 627 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rodent Societies synthesizes and integrates the current state of knowledge about the social behavior of rodents, providing ecological and evolutionary contexts for understanding their societies and highlighting emerging conservation and management strategies to preserve them. It begins with a summary of the evolution, phylogeny, and biogeography of social and nonsocial rodents, providing a historical basis for comparative analyses. Subsequent sections focus on group-living rodents and characterize their reproductive behaviors, life histories and population ecology, genetics, neuroendocrine mechanisms, behavioral development, cognitive processes, communication mechanisms, cooperative and uncooperative behaviors, antipredator strategies, comparative socioecology, diseases, and conservation. Using the highly diverse and well-studied Rodentia as model systems to integrate a variety of research approaches and evolutionary theory into a unifying framework, Rodent Societies will appeal to a wide range of disciplines, both as a compendium of current research and as a stimulus for future collaborative and interdisciplinary investigations.
Download or read book Squirrels written by Richard W. Thorington and published by JHU Press. This book was released on 2006-08-28 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Publisher description
Download or read book Animal Behaviour Abstracts written by and published by . This book was released on 2000 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wildlife Abstracts written by U.S. Fish and Wildlife Service and published by . This book was released on 1954 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Animals Influence on the Landscape and Ecological Importance written by Friedrich-Karl Holtmeier and published by Springer. This book was released on 2014-10-22 with total page 547 pages. Available in PDF, EPUB and Kindle. Book excerpt: In its first English-language edition, this book introduces the many-faceted interactions of animal populations with their habitats. From soil fauna, ants and termites to small and large herbivores, burrowing mammals and birds, the author presents a comprehensive analysis of animals and ecosystems that is as broad and varied as all nature. Chapter 2 addresses the functional role of animals in landscape ecosystems, emphasizing fluxes of energy and matter within and between ecosystems, and the effects of animals on qualitative and structural habitat change. Discussion includes chapters on the role of animal population density and the impacts of native herbivores on vegetation and habitats from the tropics to the polar regions. Cyclic mass outbreaks of species such as the larch bud moth in Switzerland, the mountain pine beetle and the African red-billed weaver bird are described and analyzed. Other chapters discuss Zoochory – the dispersal of seeds by ants, mammals and birds – and the influence of burrowing animals on soil development and geomorphology. Consideration extends to the impact of feral domestic animals. Chapter 5 focuses on problems resulting from introduction of alien animals and from re-introduction of animal species to their original habitats, discusses the effects on ecosystems of burrowing, digging and trampling by animals. The author also addresses keystone species such as kangaroo rats, termites and beavers. Chapter 6 addresses the role of animals in landscape management and nature conservation, with chapters on the impact of newcomer species such as animals introduced into Australia, New Zealand and Europe, and the consequences of reintroduction of species to original habitat. It also discusses the carrying capacity of natural habit, public attitudes toward conversation and more. The final section ponders the effects of climate on interactions between animals and their habitats.
Download or read book Hibernation and Torpor in Mammals and Birds written by Charles P Lyman and published by Elsevier. This book was released on 2013-07-10 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hibernation and Torpor in Mammals and Birds explores the physiological factors that control hibernation and torpor in birds and mammals. This text covers topics ranging from metabolism in hibernation to the role of endocrines, respiration and acid-base state in hibernation, and theories of hibernation. This book is comprised of 14 chapters and begins with an overview of some clear-cut definitions and why mammals and birds hibernate. The reader is then introduced to the variations from euthermia that have been observed among birds and mammals. To give some structure to this listing, the approach is phylogenetic, starting with the birds and proceeding through the primitive to the more advanced mammals. Subsequent chapters explains the process of entering hibernation and the hibernating state, itself; capability of a species in natural hibernation to arouse from that state using self-generated heat; physiological changes at the start of a spontaneous arousal; and physiological mechanisms underlying the ability of hibernators to rewarm. Consideration is also given to intermediary metabolism in hibernation, cold adaptation of metabolism in hibernators, and the response of hibernators to various extrinsic influences such as neoplastic growth, radiation injury, and parasitism and symbionts. This book will be of interest to students and researchers in fields ranging from zoology to physiology and biophysics.
Download or read book Canadian Journal of Zoology written by and published by . This book was released on 2001 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Towns Ecology and the Land written by Richard T. T. Forman and published by Cambridge University Press. This book was released on 2019-02-07 with total page 637 pages. Available in PDF, EPUB and Kindle. Book excerpt: A pioneering book highlighting the dynamic environmental dimensions of towns and villages and spatial connections with surrounding land.
