Ecology And Behaviour Of North American Black Bears
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Ecology And Behaviour Of North American Black Bears
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Author : Roger A. Powell
language : en
Publisher: Springer Science & Business Media
Release Date : 1997
Ecology And Behaviour Of North American Black Bears written by Roger A. Powell and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Nature categories.
What main factors affect mammalian home range size and dynamics? To what extent do constraints on home range characteristics vary between the sexes? This book aims to address these issues by concentrating the authors' expertise and experience in studies of home ranges in general and focusing on their studies of black bears of the Pisgah Forest, North Carolina, in particular. The authors provide an overview of the black bears and methods for their study before discussing concepts of home range, developing predictive habitat quality models, addressing influences of food production on social organization and exploring the mating behaviour of male bears.
Bears Of The World
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Author : Vincenzo Penteriani
language : en
Publisher: Cambridge University Press
Release Date : 2020-11-30
Bears Of The World written by Vincenzo Penteriani and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-11-30 with Nature categories.
Bears have fascinated people since ancient times. The relationship between bears and humans dates back thousands of years, during which time we have also competed with bears for shelter and food. In modern times, bears have come under pressure through encroachment on their habitats, climate change, and illegal trade in their body parts, including the Asian bile bear market. The IUCN lists six bears as vulnerable or endangered, and even the least concern species, such as the brown bear, are at risk of extirpation in certain countries. The poaching and international trade of these most threatened populations are prohibited, but still ongoing. Covering all bears species worldwide, this beautifully illustrated volume brings together the contributions of 200 international bear experts on the ecology, conservation status, and management of the Ursidae family. It reveals the fascinating long history of interactions between humans and bears and the threats affecting these charismatic species.
Black Bears
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Author : Dave Taylor
language : en
Publisher:
Release Date : 2021
Black Bears written by Dave Taylor and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with Nature categories.
"A full colour natural history of the North American black bear, its evolution, biology, environment, history, human interaction, conservation and protection--with maps and photographs."--
Foraging Ecology And Aging Of Black Bears In Human Modified Landscapes
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Author : Rebecca Kirby
language : en
Publisher:
Release Date : 2016
Foraging Ecology And Aging Of Black Bears In Human Modified Landscapes written by Rebecca Kirby and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
As human-modified landscapes now predominate globally, understanding the role of novel habitats in modifying animal behavior is increasingly important. Such new conditions can change animal foraging behavior, with important implications for individual condition, and biological aging. American black bears (Ursus americanus) are long-lived opportunistic omnivores that exhibit highly plastic foraging strategies, utilize seasonal hibernation, and are increasingly found in developing landscapes. As such, bears may alter their behavior to take advantage of differing availabilities of food subsidies, with important consequences at the individual- and population-level. My dissertation investigates the interactions of habitat and human activity on the foraging and aging ecology of black bears. Using stable isotopes to analyze diet, and telomeres as a molecular marker for biological aging, I examined bears at multiple scales in Colorado and Wisconsin. Each chapter of this dissertation is written (and formatted) as a manuscript for publication in a scholarly journal. Chapter 1 (published in Biological Conservation) investigated bear foraging throughout the Colorado landscape, and found that levels of human activity drove bear diet, and foraging on subsidies increased risk of conflict. Chapter 2 (in review at Evolutionary Ecology) explored the relative importance of such environmental factors and individual characteristics on biological aging in these Colorado black bears, and discovered a latitudinal pattern in telomere length that is likely driven by habitat differences. Chapter 3 (in review at Journal of Applied Ecology) characterized the high reliance of northern Wisconsin black bears on intentionally provisioned subsidies in the form of bear bait -- over 40% of their lifetime diet was derived from bait sources. Finally, Chapter 4 (prepared for submission to Functional Ecology) inspected a small population of longitudinally sampled black bears in southwestern Colorado to consider how foraging and hibernation influence stress and biological aging, and found that hibernation length slowed biological aging, but that foraging on subsidies could shorten hibernation. Overall, the work here demonstrates the remarkable habituation of black bears to food subsidies at multiple scales, and how accompanying changes in behavior and hibernation characteristics may have associated effects at the population and molecular levels, and suggests strategies for managing such populations.
Spatial Ecology And Captive Behavior Of Rehabilitated Black Bears In Utah
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Author : Patrick J. Myers
language : en
Publisher:
Release Date : 2016
Spatial Ecology And Captive Behavior Of Rehabilitated Black Bears In Utah written by Patrick J. Myers and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
Animal movements and space use are fundamental components of life and play integral roles in organismal fitness, population dynamics, and the ecology and evolution of species. The heterogeneous distribution of resources and the movement required to access them, results in ecology being a fundamentally spatial concept. Thus, elucidating animal-habitat relationships is a central focus of wildlife ecology and conservation. I utilized GPS technology, resource selection functions, and generalized linear mixed models, to investigate the immediate post-release movements, denning chronology, release-site fidelity, and season-delineated movements, home ranges, and resource use for six, orphaned and rehabilitated black bears (Ursus americanus). This study represents the first application of GPS monitoring and resource selection for rehabilitated black bears. Data from this study provide insights into the activity of released rehabilitated black bear cubs, highlight trends among the release cohort, and illustrate the variability of individual behavior. Results indicate species-typical behaviors, with bears denning shortly after their releases, exhibiting elevated movement rates and dispersals during late-summer, preferential selection for certain habitat types based on season, and no utilization of anthropogenic-resources. One primary concern for large carnivores that have been captive-reared or had prolonged exposure to humans during rehabilitation, is whether they will exhibit natural behaviors after release. Behavior testing in other species has revealed that many traits exhibited in captivity often translate to wild behavior, however this had not yet been investigated for black bears. This study presents the first application of captive behavior tests for the investigation into black bear personality, defined by consistency in the individual differences in behavior across time or context. Through open field, novel object, startle object, and focal-animal sampling, we investigate the potential for personality in six black bear cubs. Results indicate consistency in behavior across five metrics for the bold-shy axis, and eight sampling events measuring responses for the activity axis, thus indicating personality. Analysis to identify correlations to wild activity metrics did not yield strong statistical support, however. Information presented here may provide a framework for future research into black bear personality, its relationship to life-history and ecology, and lend support for rehabilitation practices for orphan bear cubs.
Ecology Of American Black Bears In An Urban Environment
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Author : Nicholas Paul Gould
language : en
Publisher:
Release Date : 2020
Ecology Of American Black Bears In An Urban Environment written by Nicholas Paul Gould and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with categories.
Ecology Of Asiatic Black Bears And People Bear Interactions In Yushan National Park Taiwan
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Author : Mei-Hsiu Hwang
language : en
Publisher:
Release Date : 2003
Ecology Of Asiatic Black Bears And People Bear Interactions In Yushan National Park Taiwan written by Mei-Hsiu Hwang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.
All About North American Black Bears
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Author : Lisa Petrillo
language : en
Publisher: Mitchell Lane
Release Date : 2019-09-04
All About North American Black Bears written by Lisa Petrillo and has been published by Mitchell Lane this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-09-04 with Juvenile Nonfiction categories.
American black bears look as cuddly as Teddy bears but they can be fierce. Their claws are sharp as knives. North America’s most common bear can grow into man-sized hulks weighing as much as 600 pounds. Look inside All About North American Black Bears to read and learn about these furry creatures who love nuts, berries, bugs, and even garbage. Black Bears is one of 18 books in our Animals Around the World series. Each title is beautifully illustrated with large, close-up photographs. Be sure to check out all 18!
Black Bear
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Author : Rae Wynn-Grant
language : en
Publisher: Timber Press
Release Date : 2021-03-02
Black Bear written by Rae Wynn-Grant and has been published by Timber Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-03-02 with Nature categories.
Black Bear, by Dr. Rae Wynn-Grant, tells the story of one of North America’s most iconic species. With engaging prose informed by years of fieldwork, Wynn-Grant explores the black bear’s cultural impact, ecological necessity, and relationship with the humans who share their habitats. Few animals have defined the North American wilderness or impacted ways of life as deeply as the black bear. They have been essential to indigenous cultures in North America, feared predators of early pioneers, and today they’re appearing in urban areas at remarkably increasing rates. Black bears have persevered through staggering changes in human development since their first encounters with humans in North America. Black Bear tracks the ways human development have affected bear habitats and populations, and how these changes have shaded human-bear interactions. Through it all, Dr. Wynn-Grant will highlight her experiences studying bears in the field and her journey as a woman of color working in conservation ecology.
Carnivore Ecology And Conservation
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Author : Luigi Boitani
language : en
Publisher: Oxford University Press
Release Date : 2012-01-12
Carnivore Ecology And Conservation written by Luigi Boitani and has been published by Oxford University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-01-12 with Nature categories.
Provides concise, yet authoritative descriptions of the most common techniques used to study wild carnivores and to conserve and manage their populations within increasingly human-dominated landscapes.