Roosevelt Elk Habitat Use In The Oregon Coast Range
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Roosevelt Elk Habitat Use In The Oregon Coast Range
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Author : Gary William Witmer
language : en
Publisher:
Release Date : 1981
Roosevelt Elk Habitat Use In The Oregon Coast Range written by Gary William Witmer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Elk categories.
Daily and seasonal habitat use by Roosevelt elk was investigated in the Oregon Coast Range on managed, public forestland. Over 3,700 locations of 6 radio-collared cow elk were recorded during 12 consecutive months. Two elk formed part of a north band and 4 elk were part of a south band. Home ranges for elk bands were mutually exclusive and enclosed areas of 400 ha or less each season. Heavily used central cores of activity comprised a small portion of the total home range. Seasonal home ranges of a given band overlapped substantially and were largest in calving and summer seasons. Cow elk of a given band were most often associated with one another during spring, rut and winter seasons and were otherwise more dispersed. Elk exhibited preferences for old-growth forest and hardwood stands over mixed forest and dense, young conifer stands. Brushy clearcuts were utilized more than new clearcuts for foraging. Use of new clearcuts increased in winter. Elk preferred southerly aspects throughout the year, avoided roads (especially paved roads), and did not venture far from forest/clearcut edges. During calving season, cow elk spent more time in cover and utilized areas that were characteristically of lower elevation, gentler slope, greater seclusion and were closer to water than the rest of the year. Elk appeared unaffected by weather during the mild winter of the study and sought out cover during warmer periods of the day during all seasons. A consistent daily pattern of habitat use was for elk to forage on brushy clearcuts during early and late daylight hours and to retreat to an old-growth stand to bed and/or loaf through the midday period The pattern of several hours of activity followed by several of inactivity appeared to extend through the night, although elk were less active at night. Cover use, especially of dense, young, second-growth stands, increased and movement decreased during the hunting season. Despite variability in seasonal and individual elk habitat use, discriminant analyses suggested that cover types, adjacent cover types and aspects were the most promising of the parameters measured for the prediction of habitat use patterns of Roosevelt elk. Recommendations are proposed for the effective integration of management for elk and other forest resources.
Roosevelt Elk Habitat Use In The Oregon Coast Range
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Author : Michael Dickens Pope
language : en
Publisher:
Release Date : 1994
Roosevelt Elk Habitat Use In The Oregon Coast Range written by Michael Dickens Pope and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Roosevelt elk categories.
Few studies have evaluated non-migratory Roosevelt elk (Cervus elaphus roosevelti) interactions and habitat use on lands undergoing extensive timber removal. We captured and radio-tracked for 14 months representatives from 29 different bands of elk across a 37,000 ha area of Oregon's Coast Range. We identified 6 habitat variables within individual elk home ranges and across the study area. In general, elk use of these habitats within individual home ranges was not significantly (
Habitat Use By Female Roosevelt Elk In The Oregon Coast Range
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Author : G. W. Witmer
language : en
Publisher:
Release Date : 1983
Habitat Use By Female Roosevelt Elk In The Oregon Coast Range written by G. W. Witmer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with categories.
Influence Of Limited Access Roads On Roosevelt Elk In The Oregon Coast Range
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Author : Eric K. Cole
language : en
Publisher:
Release Date : 1996
Influence Of Limited Access Roads On Roosevelt Elk In The Oregon Coast Range written by Eric K. Cole and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Roosevelt elk categories.
No studies have evaluated the effects of limited vehicle access on movements, survival and habitat use of Roosevelt elk (Cervus elaphus roosevelti) . We installed twenty gates, restricting motorized vehicle access by the public in seven discrete Road Management Areas (RMAs), comprising 35% of the study area. We radio-tracked 31 cow elk for 13 months in a 38,000 ha area of the Oregon Coast Range. Prior to the installation of the gates, 20 of these elk had been tracked for 14 months, allowing a paired comparison of elk movements and habitat use before and during the limited access period. The percentage of elk home ranges or core areas within the RMAs did not differ between periods, but there was a clear decrease in daily movement of elk during the limited access period. Survival rates increased during the limited access period and declined after the removal of the gates. During the limited access period, there was a significant increase in the use of open, foraging habitats and areas 150 m from roads. We conducted habitat selection analysis on vegetative cover types, distance from roads and distance from water. In general elk use of vegetative cover types was not significantly different from availability (p0.05). Elk avoided areas
A Model To Evaluate Elk Habitat In Western Oregon
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Author :
language : en
Publisher:
Release Date : 1986
A Model To Evaluate Elk Habitat In Western Oregon written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Animals categories.
"This book examines international criminal law from a normative perspective and lays out how responsible agents, individuals and the collectives they comprise, ought to be held accountable to the world for the commission of atrocity. The author provides criteria for determining the kinds of actions that should be addressed through international criminal law. Additionally, it asks, and answers, how individual responsibility can be determined in the context of collectively perpetrated political crimes and whether an international criminal justice system can claim universality in a culturally plural world. The book also examines the function of international criminal law and finally considers how the goals and purposes of international law can best be institutionally supported. This book is of particular interest to a multidisciplinary academic audience in political science, philosophy, and law, however the book is written in clear jargon-free prose that is intended to render the arguments accessible to the non-specialist reader interested in global justice, human rights and international criminal law"--
Assessment And Management Of Animal Damage In Pacific Northwest Forest
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Author :
language : en
Publisher:
Release Date : 1990
Assessment And Management Of Animal Damage In Pacific Northwest Forest written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Forest protection categories.
General Technical Report Pnw Gtr
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Author :
language : en
Publisher:
Release Date : 1990
General Technical Report Pnw Gtr written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Forests and forestry categories.
Publications Of The Pacific Northwest Forest And Range Experiment Station
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Author : Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
language : en
Publisher:
Release Date : 1980
Publications Of The Pacific Northwest Forest And Range Experiment Station written by Pacific Northwest Forest and Range Experiment Station (Portland, Or.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Forests and forestry categories.
Population Ecology Of Roosevelt Elk
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Author : Butch Weckerly
language : en
Publisher: University of Nevada Press
Release Date : 2017-09-27
Population Ecology Of Roosevelt Elk written by Butch Weckerly and has been published by University of Nevada Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-09-27 with Nature categories.
The Roosevelt elk populate the parks along California’s north coast and comprise the largest land mammals in the parks, some weighing up to 1,200 pounds. They are a stable terrestrial land mammal population, a fixture in the parks, but still require ongoing stewardship and management. In a study spanning more than twenty years, Weckerly made key observations and conducted various investigations under a multitude of ecological conditions. Few authors have dedicated this much time and effort into a single research area. It is a testament to perseverance that his groundbreaking study of the Roosevelt elk was so successful. He was able to document the independent dynamics of several herds of female elk, experience the extinction of one of their subpopulations, and record scientific conclusions in the context of resiliency and redundancy of the elk population. This book will be of considerable interest to those who investigate the ecology of big game animals, including naturalists, hunters, and individuals with particular interest in Redwood State and National Parks. It is an important book that contributes substantially to the persistence and viability of Roosevelt elk in the parks and the surrounding area.
Management Of Wildlife And Fish Habitats In Forests Of Western Oregon And Washington Chapter Narratives
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Author :
language : en
Publisher:
Release Date : 1985
Management Of Wildlife And Fish Habitats In Forests Of Western Oregon And Washington Chapter Narratives written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Fishery management categories.