Factors Influencing Elk Recruitment Across Ecotypes In The Western United States

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Factors Influencing Elk Recruitment Across Ecotypes in the Western United States

Author : Paul M. Lukacs
Publisher :
ISBN 13 :
Total Pages : 698 pages
Book Rating : 4.:/5 (13 download)

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Book Synopsis Factors Influencing Elk Recruitment Across Ecotypes in the Western United States by : Paul M. Lukacs

Download or read book Factors Influencing Elk Recruitment Across Ecotypes in the Western United States written by Paul M. Lukacs and published by . This book was released on 2018 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ungulates are key components in ecosystems and economically important for sport and subsistence harvest. Yet the relative importance of the effects of weather conditions, forage productivity, and carnivores on ungulates are not well understood. We examined changes in elk (Cervus canadensis) recruitment (indexed as age ratios) across 7 states and 3 ecotypes in the northwestern United States during 1989-2010, while considering the effects of predator richness, forage productivity, and precipitation.Wefound a broad-scale, long-termdecrease in elk recruitment of 0.48 juveniles/100 adult females/year. Weather conditions (indexed as summer and winter precipitation) showed small, but measurable, influences on recruitment. Forage productivity on summer and winter ranges (indexed by normalized difference vegetation index [NDVI] metrics) had the strongest effect on elk recruitment relative to other factors. Relationships between forage productivity and recruitment varied seasonally and regionally. The productivity of winter habitat was more important in southern parts of the study area, whereas annual variation in productivity of summer habitat had more influence on recruitment in northern areas. Elk recruitment varied by up to 15 juveniles/100 adult females across the range of variation in forage productivity. Areas with more species of large carnivores had relatively low elk recruitment, presumably because of increased predation. Wolves (Canis lupus) were associated with a decrease of 5 juveniles/100 adult females, whereas grizzly bears (Ursus arctos) were associated with an additional decrease of 7 juveniles/100 adult females. Carnivore species can have a critical influence on ungulate recruitment because their influence rivals large ranges of variation in environmental conditions. A more pressing concern, however, stems from persistent broad-scale decreases in recruitment across the distribution of elk in the northwestern United States, irrespective of carnivore richness. Our results suggest that wildlife managers interested in improving recruitment of elk consider the combined effects of habitat and predators. Efforts to manage summer and winter ranges to increase forage productivity may have a positive effect on recruitment.

The Cougar Conundrum

Author : Mark Elbroch
Publisher : Island Press
ISBN 13 : 161091998X
Total Pages : 282 pages
Book Rating : 4.6/5 (19 download)

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Book Synopsis The Cougar Conundrum by : Mark Elbroch

Download or read book The Cougar Conundrum written by Mark Elbroch and published by Island Press. This book was released on 2020-08-13 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: The relationship between humans and mountain lions has always been uneasy. A century ago, mountain lions were vilified as a threat to livestock and hunted to the verge of extinction. In recent years, this keystone predator has made a remarkable comeback, but today humans and mountain lions appear destined for a collision course. Its recovery has led to an unexpected conundrum: Do more mountain lions mean they’re a threat to humans and domestic animals? Or, are mountain lions still in need of our help and protection as their habitat dwindles and they’re forced into the edges and crevices of communities to survive? Mountain lion biologist and expert Mark Elbroch welcomes these tough questions. He dismisses long-held myths about mountain lions and uses groundbreaking science to uncover important new information about their social habits. Elbroch argues that humans and mountain lions can peacefully coexist in close proximity if we ignore uninformed hype and instead arm ourselves with knowledge and common sense. He walks us through the realities of human safety in the presence of mountain lions, livestock safety, competition with hunters for deer and elk, and threats to rare species, dispelling the paranoia with facts and logic. In the last few chapters, he touches on human impacts on mountain lions and the need for a sensible management strategy. The result, he argues, is a win-win for humans, mountain lions, and the ecosystems that depend on keystone predators to keep them in healthy balance. The Cougar Conundrum delivers a clear-eyed assessment of a modern wildlife challenge, offering practical advice for wildlife managers, conservationists, hunters, and those in the wildland-urban interface who share their habitat with large predators.

Back from the Collapse

Author : Curtis H. Freese
Publisher : U of Nebraska Press
ISBN 13 : 1496231325
Total Pages : 376 pages
Book Rating : 4.4/5 (962 download)

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Book Synopsis Back from the Collapse by : Curtis H. Freese

Download or read book Back from the Collapse written by Curtis H. Freese and published by U of Nebraska Press. This book was released on 2023-07 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Back from the Collapse is about the evolution, Euro-American-driven collapse, and large-scale restoration of Great Plains wildlife through efforts by the nonprofit organization American Prairie to assemble a protected area of 3.2 million acres on the plains of northeast Montana.

Wildlife Management and Conservation

Author : Paul R. Krausman
Publisher : JHU Press
ISBN 13 : 142144397X
Total Pages : 468 pages
Book Rating : 4.4/5 (214 download)

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Book Synopsis Wildlife Management and Conservation by : Paul R. Krausman

Download or read book Wildlife Management and Conservation written by Paul R. Krausman and published by JHU Press. This book was released on 2022-09-20 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: The definitive textbook for students of wildlife management, now updated to cover the latest techniques, tools, and topics. Wildlife Management and Conservation presents a clear overview of the management and conservation of animals, their habitats, and how people influence both. The relationship among these three components of wildlife management is explained in chapters written by leading experts and is designed to prepare students for careers in which they will be charged with maintaining healthy animal populations. To be successful wildlife professionals, they will need to find ways to restore depleted populations, reduce overabundant, introduced, or pest species, and manage relationships among various human stakeholders. This book gives them the basic knowledge necessary to accomplish these goals. This second edition, which is updated throughout, features several new and expanded topics, including communication in the wildlife profession, fire science, Indigenous models of management and conservation, plant–animal interactions, quantitative analysis of wildlife populations, and a detailed glossary. The book also covers: • Human dimensions of wildlife management • Animal behavior • Predator–prey relationships • Structured decision making • Issues of scale in wildlife management • Wildlife health • Historical context of wildlife management and conservation • Hunting and trapping • Nongame species • Nutrition ecology • Water management • Climate change • Conservation planning The most widely used foundational text in the field, this is the perfect resource not only for students but also for early career professionals and those in related fields who need to understand the core tenets and tools of wildlife conservation and management. Contributors: C. Jane Anderson, Bart M. Ballard, Warren B. Ballard, John A. Bissonette, Clint Boal, Scott B. Boyle, Leonard A. Brennan, Robert D. Brown, James W. Cain III, Tyler A. Campbell, Michael J. Cherry, Michael R. Conover, Daniel J. Decker, Randall W. DeYoung, Jonathan B. Dinkins, W. Sue Fairbanks, Selma N. Glasscock, James B. Grand, Michael J. Haney, James R. Heffelfinger, Scott E. Henke, Fidel Hernandez, Davie G. Hewitt, C. L. Hoving, David A. Jessup, Heather E. Johnson, Winifred B. Kessler, John L. Koprowski, Paul R. Krausman, William P. Kuvlesky, Jr., Roel R. Lopez, R. W. Mannan, Melissa J. Merrick, L. Scott Mills, Michael S. Mitchell, Michael L. Morrison, Anna M. Muñoz, John F. Organ, Katherine L. Parker, William F. Porter, Shawn J. Riley, Steven S. Rosenstock, Michael C. Runge, Susan P. Rupp, William F. Siemer, Robert J. Steidl, Kelley M. Stewart

Satellite Remote Sensing for Conservation Action

Author : Allison K. Leidner
Publisher : Cambridge University Press
ISBN 13 : 1108596940
Total Pages : 355 pages
Book Rating : 4.1/5 (85 download)

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Book Synopsis Satellite Remote Sensing for Conservation Action by : Allison K. Leidner

Download or read book Satellite Remote Sensing for Conservation Action written by Allison K. Leidner and published by Cambridge University Press. This book was released on 2018-08-16 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: Satellite remote sensing presents an amazing opportunity to inform biodiversity conservation by inexpensively gathering repeated monitoring information for vast areas of the Earth. However, these observations first need processing and interpretation if they are to inform conservation action. Through a series of case studies, this book presents detailed examples of the application of satellite remote sensing, covering both aquatic and terrestrial ecosystems, to conservation. The authors describe how collaboration between the remote sensing and conservation communities makes satellite data functional for operational conservation, and provide concrete examples of the lessons learned in addition to the scientific details. The editors, one at NASA and the other at a conservation NGO, have brought together leading researchers in conservation remote sensing to share their experiences from project development through to application, and emphasise the human side of these projects.

Density-dependent Not -independent Factors Influence Roosevelt Elk Recruitment in the Bald HIlls of Redwood National Park

Author : Nicholas Ryan Kolbe
Publisher :
ISBN 13 :
Total Pages : 68 pages
Book Rating : 4.:/5 (96 download)

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Book Synopsis Density-dependent Not -independent Factors Influence Roosevelt Elk Recruitment in the Bald HIlls of Redwood National Park by : Nicholas Ryan Kolbe

Download or read book Density-dependent Not -independent Factors Influence Roosevelt Elk Recruitment in the Bald HIlls of Redwood National Park written by Nicholas Ryan Kolbe and published by . This book was released on 2016 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Density-independent and -dependent factors are known to influence population dynamics of Roosevelt elk (Cervus elaphus roosevelti). The strength of influence of both kinds of factors depends on abundance relative to K carrying capacity. I examined the influence of density, climatic variables, and prescribed fire on juvenile recruitment in an elk population in Redwood National Park, California, USA, from 2002 to 2015. In the Park, prescribed fire is used to reduce conifer and redwood (Sequoia sempervirens) encroachment into meadows and is not used to manage elk habitat. Consequently, prescribed fire might have a density-independent influence on juvenile recruitment and population dynamics because it is implemented without regard to elk population dynamics. Fire is also known to increase elk food supplies, but whether fire might have a positive influence on recruitment depends on the population size relative to K. Using a time series of elk counts conducted during winter from 2002 to 2015, abundance of elk varied from 190 to 279. Output from a Gompertz state-space model and expectation from the standard logistic model estimated K to be between 275 and 340 over the course of the study period. An Akaike Information Criterion model selection analysis of 36 linear regressions estimating juvenile recruitment considered abundance, prescribed fire, and climatic influences. Population abundance alone had the strongest influence on juvenile recruitment. My findings may be affected by the population being below K carrying capacity during most of the time series analyzed. Furthermore, prescribed fire might not have influenced recruitment because of inconsistent burning.

The Lochsa Elk Herd

Author : James M. Peek
Publisher : Cambridge Scholars Publishing
ISBN 13 : 152754981X
Total Pages : 206 pages
Book Rating : 4.5/5 (275 download)

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Book Synopsis The Lochsa Elk Herd by : James M. Peek

Download or read book The Lochsa Elk Herd written by James M. Peek and published by Cambridge Scholars Publishing. This book was released on 2020-04-23 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: Northern hemisphere ungulates occupy a variety of habitats of varying degrees of permanency. Populations that occupy drier areas must contend with different moisture patterns between years, but vegetation is relatively permanent, pending large-scale disturbances such as fires or heavy grazing. However, populations that occupy boreal forests and the moist inland coniferous forests often benefit from the major vegetation change that typically follows fire or logging. This volume records the history of an elk population that occupies these types of forests. Major fires in the 1910-1934 period created millions of acres of highly palatable shrubs that created a habitat for a burgeoning elk population. Coupled with the reduction of major predators, hunting, and other human activities in the 1930s and 1940s, the elk herd expanded to levels that are unlikely to be reached again and may never have occurred before. This pattern has occurred in many forests across the Holarctic hemisphere. Efforts to retain elk and other species including moose in these forests will have to be coordinated with other activities including logging and fire. Elk must be recognized as being products of forest disturbance.

Elk Ecology

Author : Peter Edward Zager
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.:/5 (212 download)

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Book Synopsis Elk Ecology by : Peter Edward Zager

Download or read book Elk Ecology written by Peter Edward Zager and published by . This book was released on 2007 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Elk Ecology

Author : Peter Edward Zager
Publisher :
ISBN 13 :
Total Pages : 34 pages
Book Rating : 4.:/5 (513 download)

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Book Synopsis Elk Ecology by : Peter Edward Zager

Download or read book Elk Ecology written by Peter Edward Zager and published by . This book was released on 2002 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Elk Ecology

Author : Peter Edward Zager
Publisher :
ISBN 13 :
Total Pages : 46 pages
Book Rating : 4.:/5 (523 download)

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Book Synopsis Elk Ecology by : Peter Edward Zager

Download or read book Elk Ecology written by Peter Edward Zager and published by . This book was released on 2002 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Elk Ecology

Author : Michael W. Gratson
Publisher :
ISBN 13 :
Total Pages : 51 pages
Book Rating : 4.:/5 (454 download)

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Book Synopsis Elk Ecology by : Michael W. Gratson

Download or read book Elk Ecology written by Michael W. Gratson and published by . This book was released on 2000 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Elk Ecology

Author : Michael W. Gratson
Publisher :
ISBN 13 :
Total Pages : 78 pages
Book Rating : 4.:/5 (426 download)

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Book Synopsis Elk Ecology by : Michael W. Gratson

Download or read book Elk Ecology written by Michael W. Gratson and published by . This book was released on 1999 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Elk Ecology

Author : Peter Edward Zager
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (665 download)

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Book Synopsis Elk Ecology by : Peter Edward Zager

Download or read book Elk Ecology written by Peter Edward Zager and published by . This book was released on 2005 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Wallowa-Whitman National Forest (N.F.), Joseph Creek Rangeland Analysis

Author :
Publisher :
ISBN 13 :
Total Pages : 394 pages
Book Rating : 4.3/5 (555 download)

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Book Synopsis Wallowa-Whitman National Forest (N.F.), Joseph Creek Rangeland Analysis by :

Download or read book Wallowa-Whitman National Forest (N.F.), Joseph Creek Rangeland Analysis written by and published by . This book was released on 2005 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Management of Large Mammalian Carnivores in North America

Author : The Wildlife Society
Publisher :
ISBN 13 : 9781937504106
Total Pages : 78 pages
Book Rating : 4.5/5 (41 download)

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Book Synopsis Management of Large Mammalian Carnivores in North America by : The Wildlife Society

Download or read book Management of Large Mammalian Carnivores in North America written by The Wildlife Society and published by . This book was released on 2012 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: This review addresses the current management of larger mammalian carnivores to increase, maintain, or reduce their numbers, while taking into account the population of certain ungulate prey and their relation to predators, social pressures and attitudes of the public towards predators, and the effects of sport hunting and trapping on carnivore population dynamics. This review considers brown bears "(Ursus arctos," black bears "(U. americanus)," coyotes "(Canis latrans)," wolves "(Canis lupus, C. lycaon)," and mountain lions "(Felis concolor." The appendix presents the results of a statistical analysis of trends discussed in this report.

Current Mammalogy

Author : H.H. Genoways
Publisher : Springer Science & Business Media
ISBN 13 : 1475799098
Total Pages : 530 pages
Book Rating : 4.4/5 (757 download)

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Book Synopsis Current Mammalogy by : H.H. Genoways

Download or read book Current Mammalogy written by H.H. Genoways and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: When I first proposed a series entitled Current Mammalogy to the pub lishers, they were reluctant to undertake such a project because they viewed the field of mammology as overly fragmented. At first I found this idea to be difficult to accept; however, upon reflection, I came near to agreeing with it. Although many of us work on mammals, we gen erally feel more allegiance to our specialties, such as systematics, ge netics, cytogenetics, ecology, behavior, pest control, paleontology, wildlife management, primatology, and marine mammalogy, than we do to the general field of mammalogy. However, rather than becoming discour aged from pursuing this project, I became more certain than ever that a series such as Current Mammalogy was needed. We hope to make this series a place where specialists can present their ideas not only to other members of their specialty, but to those outside the area as well. Hopefully, this exchange of ideas will be a mutually beneficial exercise. The Editorial Board of Current Mammalogy has decided to keep the range of subjects in each volume as broad as possible rather than concentrating on one or two topics, in the hope that this will keep the series as useful as possible to the broadest range of readers.

The Scientific Basis for Conserving Forest Carnivores

Author : Leonard F. Ruggiero
Publisher :
ISBN 13 :
Total Pages : 198 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis The Scientific Basis for Conserving Forest Carnivores by : Leonard F. Ruggiero

Download or read book The Scientific Basis for Conserving Forest Carnivores written by Leonard F. Ruggiero and published by . This book was released on 1994 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: This cooperative effort by USDA Forest Service Research and the National Forest System assesses the state of knowledge related to the conservation status of four forest carnivores in the western United States: American marten, fisher, lynx, and wolverine. The conservation assessment reviews the biology and ecology of these species. It also discusses management considerations stemming from what is known and identifies information needed. Overall, we found huge knowledge gaps that make it difficult to evaluate the species' conservation status.