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The Status Distribution And Management Of Mountain Goats In The Greater Yellowstone Ecosystem
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Book Synopsis The Status, Distribution, and Management of Mountain Goats in the Greater Yellowstone Ecosystem by : John W. Laundré
Download or read book The Status, Distribution, and Management of Mountain Goats in the Greater Yellowstone Ecosystem written by John W. Laundré and published by . This book was released on 1990 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Origin, Expansion, and Status of Mountain Goats in Yellowstone National Park by : Thomas O. Lemke
Download or read book Origin, Expansion, and Status of Mountain Goats in Yellowstone National Park written by Thomas O. Lemke and published by . This book was released on 2004 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the 1980s scientists determined that an introduced mountain goat (Oreamnos americanus) population caused negative impacts to subalpine plant communities in Olympic National Park (ONP). These findings resulted in a controversial and costly mountain goat reduction program from 1981?1989. Since 1990 introduced nonnative mountain goats from Montana have successfully colonized Yellowstone National Park (YNP) via the Absaroka and Gallatin mountain ranges. Using systematic aerial surveys from 1997?2001, I documented a breeding goat population inside or within 1 km of YNP that increased from 24 to 96 mountain goats observed (mean observed rate of increase r̄= 0.35). Because of increasing goat populations immediately adjacent to YNP, Montana Fish, Wildlife, and Parks (MFWP) established 2 new hunting districts and 44 mountain goats were harvested near YNP from 1996?2001. The mountain goat is a socially popular ?charismatic? species with high watchable-wildlife values. However, within YNP they also are viewed with concern as an exotic species, potentially capable of exploiting fragile subalpine landscapes where, by policy, nonnative ungulates are not welcomed. Based on habitat availability and goat densities to the north, YNP potentially may support 200?300 mountain goats. Important ecological differences between YNP and ONP may reduce the likelihood of negative resource impacts of mountain goats in YNP. However, the speed at which mountain goat numbers and distribution are increasing warrants further habitat and population monitoring to better understand and predict the ecological effects of this new species. Future mountain goat management decisions in YNP should be based on documented impacts of goats on their habitat and other species in YNP and not what has occurred in ONP. Mountain goat management efforts in YNP should acknowledge MFWP's management objective of maintaining viable goat populations in suitable habitats and recognize that goats from Montana will continue to be a source population for future dispersal into and colonization of YNP.
Book Synopsis Range Expansion and Population Growth of Non-native Mountain Goats in the Greater Yellowstone Area by : Elizabeth P. Flesch
Download or read book Range Expansion and Population Growth of Non-native Mountain Goats in the Greater Yellowstone Area written by Elizabeth P. Flesch and published by . This book was released on 2016 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Population growth and range expansion of nonnative species can potentially disrupt ecosystem function or add conservation value to an area, and evaluation of possible impacts can be a challenge for managers. Nonnative populations of mountain goats (Oreamnos americanus) are present in the Greater Yellowstone Area (GYA) in the U.S. states of Idaho, Montana, and Wyoming because of historical introduction events, but their population trend and range have not been assessed across the area. We used 6,701 location records from 1947 to 2015 to map mountain goat distribution and evaluate, in a descriptive manner, range overlap with native bighorn sheep (Ovis canadensis). We analyzed 136 survey counts using the Exponential Growth State?Space model to estimate population trends and abundance. Mountain goats dispersed 50?85 km from introduction sites to occupy all mountain ranges in the northern GYA and 30?40 km to occupy new areas in the southern GYA. Mountain goat numbers increased in nearly all count units, with the strongest growth rates estimated in areas more recently colonized. Using moderate detection probability (0.70), we estimated approximately 2,355 mountain goats in the GYA. Although not tested in our analysis, the gradual range expansion and population growth rates were consistent with density-dependent processes observed in other introduced large herbivores and demonstrate that mountain goats can successfully disperse over unsuitable locales to colonize new areas. Therefore, we expect mountain goat populations will continue to expand into unoccupied mountain ranges that contain significant numbers of bighorn sheep unless specific management actions are implemented to address their population growth.
Book Synopsis Yellowstone’s Wildlife in Transition by : P. J. White
Download or read book Yellowstone’s Wildlife in Transition written by P. J. White and published by Harvard University Press. This book was released on 2013-04-15 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: The world's first national park, Yellowstone is a symbol of nature's enduring majesty and the paradigm of protected areas across the globe. But Yellowstone is constantly changing. How we understand and respond to events that are putting species under stress, say the authors of Yellowstone's Wildlife in Transition, will determine the future of ecosystems that were millions of years in the making. With a foreword by the renowned naturalist E. O. Wilson, this is the most comprehensive survey of research on North America's flagship national park available today. Marshaling the expertise of over thirty contributors, Yellowstone's Wildlife in Transition examines the diverse changes to the park's ecology in recent decades. Since its creation in the 1870s, the priorities governing Yellowstone have evolved, from intensive management designed to protect and propagate depleted large-bodied mammals to an approach focused on restoration and preservation of ecological processes. Recognizing the importance of natural occurrences such as fires and predation, this more ecologically informed oversight has achieved notable successes, including the recovery of threatened native species of wolves, bald eagles, and grizzly bears. Nevertheless, these experts detect worrying signs of a system under strain. They identify three overriding stressors: invasive species, private-sector development of unprotected lands, and a warming climate. Their concluding recommendations will shape the twenty-first-century discussion over how to confront these challenges, not only in American parks but for conservation areas worldwide. Highly readable and fully illustrated, Yellowstone's Wildlife in Transition will be welcomed by ecologists and nature enthusiasts alike.
Book Synopsis Occupancy Modeling of Non-native Mountain Goats in the Greater Yellowstone Area by : Jesse Daniel DeVoe
Download or read book Occupancy Modeling of Non-native Mountain Goats in the Greater Yellowstone Area written by Jesse Daniel DeVoe and published by . This book was released on 2015 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Non-native species can have adverse impacts on native species; however, coexistence may be possible if their ecological niches minimally overlap. Fine spatial scale information is needed to understand these niches but can be challenging to obtain for rare, imperfectly detected species inhabiting difficult to survey landscapes. Non-native mountain goats (Oreamnos americanus) in the greater Yellowstone area (GYA) are such a species and have substantial potential to expand in distribution and occupy similar habitats to native Rocky Mountain bighorn sheep (Ovis canadensis canadensis). To understand the niche and potential for expansion of mountain goats in the GYA, this study used a unique, fine spatial scale method to collect detection-nondetection data from two study areas with established mountain goat populations over three summer seasons (2011-2013). Relationships between scale-specific habitat covariates and mountain goat selection were evaluated using a single-species, single-season occupancy analysis to model occupancy and detection probabilities based on 505 mountain goat detections from 53,098 surveyed sampling units. Habitat selection was most strongly associated with terrain covariates, including mean slope and slope variance, at a spatial scale of 500 x 500 m, and canopy cover, heat load, and normalized difference vegetation index at a spatial scale of 100 x 100 m. These results provide new insight into multi-scale patterns of mountain goat habitat selection, as well as evidence that mean slope and slope variance are superior terrain covariates to distance to escape terrain that has dominated published mountain goat habitat models. The model predicted 10,745 km 2 of suitable habitat within the GYA, of which 57% is currently un-colonized. Throughout the GYA, suitable habitat appears to generally overlap extensively with areas occupied by bighorn sheep. I also estimated the GYA may have the potential to support 5,372-8,918 mountain goats when all predicted habitat is occupied, or approximately 2.5-4.2 times the most recent abundance estimate of 2,104.
Download or read book Yellowstone's Northern Range written by and published by . This book was released on 1997 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Summer Range Occupancy Modeling of Non-native Mountain Goats in the Greater Yellowstone Area \ by : Jesse Daniel DeVoe
Download or read book Summer Range Occupancy Modeling of Non-native Mountain Goats in the Greater Yellowstone Area \ written by Jesse Daniel DeVoe and published by . This book was released on 2015 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Non-native species can have adverse impacts on native species. Predicting the potential extent of distributional expansion and abundance of an invading non-native species can inform appropriate conservation and management actions. Non-native mountain goats (Oreamnos americanus) in the greater Yellowstone area (GYA) have substantial potential to occupy similar habitats to native Rocky Mountain bighorn sheep (Ovis canadensis canadensis). To understand the potential for expansion of mountain goats in the GYA, this study evaluated detection-nondetection data derived from ground-based occupancy surveys of viewsheds partitioned into a grid of 100 ? 100 m sampling units. Surveys were conducted over three summer seasons (2011?2013) in two study areas with well-established mountain goat populations. Relationships between scale-specific habitat covariates and mountain goat selection were evaluated to model occupancy and detection probabilities based on mountain goat detections in 505 of the 53,098 sampling units surveyed. Habitat selection was most strongly associated with terrain covariates, including mean slope and slope variance, at a spatial scale of 500 ? 500 m, and canopy cover, heat load, and normalized difference vegetation index at a spatial scale of 100 ? 100 m. These results provide new insight into multi-scale patterns of mountain goat habitat selection, as well as evidence that mean slope and slope variance are more informative terrain covariates than distance to escape terrain, which has been commonly used in published mountain goat habitat models. The model predicted 9,035 km2 of suitable habitat within the GYA, of which 57% is currently un-colonized. Seventy-five percent of all bighorn observations recorded in the GYA fall within predicted suitable mountain goat habitat. We also estimated that the GYA might have the potential to support 5,331?8,854 mountain goats when all predicted habitat is occupied, or approximately 2.5?4.2 times the most recent abundance estimate of 2,354.
Book Synopsis Ecological Dynamics on Yellowstone's Northern Range by : National Research Council
Download or read book Ecological Dynamics on Yellowstone's Northern Range written by National Research Council and published by National Academies Press. This book was released on 2002-02-01 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecological Dynamics on Yellowstone's Northern Range discusses the complex management challenges in Yellowstone National Park. Controversy over the National Park Service's approach of "natural regulation" has heightened in recent years because of changes in vegetation and other ecosystem components in Yellowstone's northern range. Natural regulation minimizes human impacts, including management intervention by the National Park Service, on the park ecosystem. Many have attributed these changes to increased size of elk and other ungulate herds. This report examines the evidence that increased ungulate populations are responsible for the changes in vegetation and that the changes represent a major and serious change in the Yellowstone ecosystem. According to the authors, any human intervention to protect species such as the aspen and those that depend on them should be prudently localized rather than ecosystem-wide. An ecosystem-wide approach, such as reducing ungulate populations, could be more disruptive. The report concludes that although dramatic ecological change does not appear to be imminent, approaches to dealing with potential human-caused changes in the ecosystem, including those related to climate change, should be considered now. The need for research and public education is also compelling.
Book Synopsis Effects of Winter Recreation on Wildlife of the Greater Yellowstone Area by : Tom Olliff
Download or read book Effects of Winter Recreation on Wildlife of the Greater Yellowstone Area written by Tom Olliff and published by . This book was released on 1999 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Greater Yellowstone's Mountain Ungulates by : Robert A. Garrott
Download or read book Greater Yellowstone's Mountain Ungulates written by Robert A. Garrott and published by . This book was released on 2021-06 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarizes information on bighorn sheep and mountain goats in the Greater Yellowstone Area.
Book Synopsis Yellowstone and Grand Teton National Parks (N.P.) and John D. Rockefeller, Jr. Memorial Parkway Winter Use Plans by :
Download or read book Yellowstone and Grand Teton National Parks (N.P.) and John D. Rockefeller, Jr. Memorial Parkway Winter Use Plans written by and published by . This book was released on 2007 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Using Historical Accounts (1796-1881) to Inform Contemporary Wildlife Management in the Yellowstone Area by : Lee H. Whittlesey
Download or read book Using Historical Accounts (1796-1881) to Inform Contemporary Wildlife Management in the Yellowstone Area written by Lee H. Whittlesey and published by . This book was released on 2018 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describing historic wildlife communities is important for evaluating changes in ecosystems through time and developing contemporary objectives for conservation and restoration. The early historical record in the Greater Yellowstone Ecosystem has been analyzed many times using a small number of written accounts, with interpretations vigorously disputed among historians, scientists, and other stakeholders. We compiled a comprehensive narrative of thousands of first-hand accounts of wildlife in the ecosystem during 1796?1881, summarized them in a georeferenced relational database, and categorized and mapped output from queries to clarify conflicting past perceptions and gain insights for contemporary management issues. The historical record indicates large mammals such as bison (Bison bison), elk (Cervus elaphus), pronghorn (Antilocapra americana), and wolves (Canis lupus) were present and widespread in present-day Yellowstone National Park and the larger ecosystem prior to Euro-American colonization. However, casual observations could not be used to estimate population sizes, relative abundances, seasonal movements and migration routes, or periods of occupancy with certainty. Despite these shortcomings, the approach was useful for informing contemporary management issues regarding wolf restoration, seasonal distributions of ungulates, and whether mountain goats (Oreamnos americanus) were native to the Yellowstone area. Similar evaluations could be conducted elsewhere to clarify historic wildlife conditions and provide reference information for modern conservation decisions.
Book Synopsis National Park Service Annual Science Report by :
Download or read book National Park Service Annual Science Report written by and published by . This book was released on 1989 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mountain Goat Management in Olympic National Park by :
Download or read book Mountain Goat Management in Olympic National Park written by and published by . This book was released on 1987 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mountain Goats by : Marco Festa-Bianchet
Download or read book Mountain Goats written by Marco Festa-Bianchet and published by Island Press. This book was released on 2012-09-26 with total page 281 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mountain goats have been among the least studied of North American ungulates, leaving wildlife managers with little information on which to base harvest strategies or conservation plans. This book offers the first comprehensive assessment of the ecology and behavior of mountain goats, setting forth the results of a remarkable 16-year longitudinal study of more than 300 marked individuals in a population in Alberta, Canada. The authors’ thorough, long-term study allowed them to draw important conclusions about mountain goat ecology—including individual reproductive strategies, population dynamics, and sensitivity to human disturbance—and to use those conclusions in offering guidance for developing effective conservation strategies. Chapters examine: -habitat use, vegetation quality, and seasonal movements -sexual segregation and social organization -individual variability in yearly and lifetime reproductive success of females -age- and sex-specific survival and dispersal -reproductive strategies and population dynamics -management and conservation of mountain goats The book also draws on the rich literature on long-term monitoring of marked ungulates to explore similarities and differences between mountain goats and other species, particularly bighorn sheep and ibex. By monitoring a marked population over a long period of time, researchers were able to document changes in sex-age structure and identify factors driving population dynamics. Because it explores the links between individual life-history strategy and population dynamics in a natural setting, Mountain Goats will be an invaluable resource for wildlife managers, researchers in ecology and animal behavior, conservationists, population biologists, and anyone concerned with the ecology and management of natural populations, especially in alpine environments.
Book Synopsis Review of Scientific Material Relevant to the Occurrence, Ecosystem Role, and Tested Management Options for Mountain Goats in Olympic National Park by :
Download or read book Review of Scientific Material Relevant to the Occurrence, Ecosystem Role, and Tested Management Options for Mountain Goats in Olympic National Park written by and published by . This book was released on 2000 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Yellowstone Bison by : Patrick James White
Download or read book Yellowstone Bison written by Patrick James White and published by . This book was released on 2015-05 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
