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Habitat Threats In The Sagebrush Ecosystem
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Book Synopsis Habitat Threats in the Sagebrush Ecosystem by : David S. Dobkin
Download or read book Habitat Threats in the Sagebrush Ecosystem written by David S. Dobkin and published by . This book was released on 2005 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is about the status and future of the sagebrush ecosystem and its dependent species. The ecosystem is not healthy and is diminishing due to the many and various human land uses. Maintaining the ecosystem will require monumental changes in management and those changes must address all land uses in an integrated, holistic manner to be effective. The two major obstacles are a lack of needed resources, both funds and land use direction, and the attempt to stop the loss and degradation of sagebrush habitats while lacking essential research information on which to base effective strategies.
Book Synopsis Using Resilience and Resistance Concepts to Manage Threats to Sagebrush Ecosystems, Gunnison Sage-grouse, and Greater Sage-grouse in Their Eastern Range by : Jeanne C. Chambers
Download or read book Using Resilience and Resistance Concepts to Manage Threats to Sagebrush Ecosystems, Gunnison Sage-grouse, and Greater Sage-grouse in Their Eastern Range written by Jeanne C. Chambers and published by . This book was released on 2016 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report provides a strategic approach developed by a Western Association of Fish and Wildlife Agencies interagency working group for conservation of sagebrush ecosystems, Greater sage-grouse, and Gunnison sage-grouse. It uses information on (1) factors that influence sagebrush ecosystem resilience to disturbance and resistance to nonnative invasive annual grasses and (2) distribution and relative abundance of sage-grouse populations to address persistent ecosystem threats, such as invasive annual grasses and wildfire, and land use and development threats, such as oil and gas development and cropland conversion, to develop effective management strategies. A sage-grouse habitat matrix links relative resilience and resistance of sagebrush ecosystems with modeled sage-grouse breeding habitat probabilities to help decisionmakers assess risks and determine appropriate management strategies at both landscape and site scales. Areas for targeted management are assessed by overlaying matrix components with Greater sage-grouse Priority Areas for Conservation and Gunnison sage-grouse critical habitat and linkages, breeding bird concentration areas, and specific habitat threats. Decision tools are discussed for determining the suitability of target areas for management and the most appropriate management actions. A similar approach was developed for the Great Basin that was incorporated into the Federal land use plan amendments and served as the basis of a Bureau of Land Management Fire and Invasives Assessment Tool, which was used to prioritize sage-grouse habitat for targeted management activities.
Book Synopsis USGS--providing Scientific Understanding of the Sagebrush Biome by :
Download or read book USGS--providing Scientific Understanding of the Sagebrush Biome written by and published by . This book was released on 2005 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Greater Sage-Grouse by : Steve Knick
Download or read book Greater Sage-Grouse written by Steve Knick and published by Univ of California Press. This book was released on 2011-05-19 with total page 665 pages. Available in PDF, EPUB and Kindle. Book excerpt: Admired for its elaborate breeding displays and treasured as a game bird, the Greater Sage-Grouse is a charismatic symbol of the broad open spaces in western North America. Unfortunately these birds have declined across much of their range—which stretches across 11 western states and reaches into Canada—mostly due to loss of critical sagebrush habitat. Today the Greater Sage-Grouse is at the center of a complex conservation challenge. This multifaceted volume, an important foundation for developing conservation strategies and actions, provides a comprehensive synthesis of scientific information on the biology and ecology of the Greater Sage-Grouse. Bringing together the experience of thirty-eight researchers, it describes the bird’s population trends, its sagebrush habitat, and potential limitations to conservation, including the effects of rangeland fire, climate change, invasive plants, disease, and land uses such as energy development, grazing, and agriculture.
Book Synopsis Using Resistance and Resilance Concepts to Reduce Impacts of Invasive Annual Grasses and Altered Fire Regimes on the Sagebrush Ecosystem and Greater Sage-Grouse by : United States Department of Agriculture
Download or read book Using Resistance and Resilance Concepts to Reduce Impacts of Invasive Annual Grasses and Altered Fire Regimes on the Sagebrush Ecosystem and Greater Sage-Grouse written by United States Department of Agriculture and published by CreateSpace. This book was released on 2015-06-22 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Report provides a strategic approach for conservation of sagebrush ecosystems and Greater Sage-Grouse (sage-grouse) that focuses specifically on habitat threats caused by invasive annual grasses and altered fire regimes. It uses information on factors that influence (1) sagebrush ecosystem resilience to distur-bance and resistance to invasive annual grasses and (2) distribution, relative abundance, and persistence of sage-grouse populations to develop management strategies at both landscape and site scales. A sage-grouse habitat matrix links relative resilience and resistance of sagebrush ecosystems with sage-grouse habitat re-quirements for landscape cover of sagebrush to help decision makers assess risks and determine appropriate management strategies at landscape scales. Focal areas for management are assessed by overlaying matrix components with sage-grouse Priority Areas for Conservation (PACs), breeding bird densities, and specific habitat threats. Decision tools are discussed for determining the suitability of focal areas for treatment and the most appropriate management treatments.
Book Synopsis Using Resistance and Resilience Concepts to Reduce Impacts of Invasive Annual Grasses and Altered Fire Regimes on the Sagebrush Ecosystem and Greater Sage-grouse by : Jeanne C. Chambers
Download or read book Using Resistance and Resilience Concepts to Reduce Impacts of Invasive Annual Grasses and Altered Fire Regimes on the Sagebrush Ecosystem and Greater Sage-grouse written by Jeanne C. Chambers and published by . This book was released on 2014 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Report provides a strategic approach for conservation of sagebrush ecosystems and Greater Sage-Grouse (sage-grouse) that focuses specifically on habitat threats caused by invasive annual grasses and altered fire regimes. It uses information on factors that influence (1) sagebrush ecosystem resilience to disturbance and resistance to invasive annual grasses and (2) distribution, relative abundance, and persistence of sage-grouse populations to develop management strategies at both landscape and site scales. A sage-grouse habitat matrix links relative resilience and resistance of sagebrush ecosystems with sage-grouse habitat requirements for landscape cover of sagebrush to help decision makers assess risks and determine appropriate management strategies at landscape scales. Focal areas for management are assessed by overlaying matrix components with sage-grouse Priority Areas for Conservation (PACs), breeding bird densities, and specific habitat threats. Decision tools are discussed for determining the suitability of focal areas for treatment and the most appropriate management treatments.
Book Synopsis Greater Sage-Grouse by : Steven T. Knick
Download or read book Greater Sage-Grouse written by Steven T. Knick and published by Univ of California Press. This book was released on 2011-05-19 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Here's everything one needs to know about sage-grouse, but it's much more than that. From the probing analyses of sage-grouse biology, one gains a broader understanding the ecology and conservation imperatives of sagebrush habitats throughout the West."—John A. Wiens, Chief Conservation Science Officer, PRBO Conservation Science "The threats facing Sage-grouse and the sagebrush habitats of the West are as vast as the landscape itself. Anyone’s foray into confronting this monumental conservation challenge should begin in the pages of this book.”-Ben Deeble, Sagebrush-Steppe Project Leader
Book Synopsis Conservation and Restoration of Sagebrush Ecosystems and Sage-grouse by : Deborah M. Finch
Download or read book Conservation and Restoration of Sagebrush Ecosystems and Sage-grouse written by Deborah M. Finch and published by . This book was released on 2016 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sagebrush ecosystems are among the largest and most threatened ecosystems in North America. Greater sage-grouse has served as the bellwether for species conservation in these ecosystems and has been considered for listing under the Endangered Species Act eight times. In September 2015, the decision was made not to list greater sage-grouse, but to reevaluate its status in 5 years. Concerns over sage-grouse and associated habitats have set in motion sweeping Federal and State land management plan changes and proactive science- based conservation actions to address threats within the realm of management control. For nearly a century, the Forest Service (FS), U.S. Department of Agriculture (USDA), has studied sagebrush ecosystems and for decades has focused on sage-grouse biology and habitat requirements. Our team of FS scientists and managers prepared this assessment to summarize FS strengths, capabilities, partners, past and current research, and potential future high-priority research areas for conservation and restoration of sagebrush ecosystems and sage-grouse. We identified research and science-based management needs of the National Forest System where lands are important for breeding and brood-rearing habitats for sage-grouse. We recommend expanded research and science delivery by FS scientists. This work will help meet continuing widespread concerns and calls for science-based conservation to mitigate threats to sagebrush ecosystems, conserve populations of sage-grouse and other sagebrush-obligate species, and restore sagebrush ecosystems throughout the western United States.
Book Synopsis Science Framework for the Conservation and Restoration Strategy of the Department of the Interior, Secretarial Order 3336 by :
Download or read book Science Framework for the Conservation and Restoration Strategy of the Department of the Interior, Secretarial Order 3336 written by and published by . This book was released on 2016 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Science Framework for the Conservation and Restoration Strategy of the Department of the Interior, Secretarial Order 3336 (SO 3336), Rangeland Fire Prevention, Management and Restoration, provides a strategic, multiscale approach for prioritizing areas for management and determining effective management strategies across the sagebrush biome. The emphasis of this version is on sagebrush ecosystems and greater sage-grouse. The Science Framework uses a six step process in which sagebrush ecosystem resilience to disturbance and resistance to nonnative, invasive annual grasses is linked to species habitat information based on the distribution and abundance of focal species. The predominant ecosystem and anthropogenic threats are assessed, and a habitat matrix is developed that helps decision makers evaluate risks and determine appropriate management strategies at regional and local scales. Areas are prioritized for management action using a geospatial approach that overlays resilience and resistance, species habitat information, and predominant threats. Decision tools are discussed for determining the suitability of priority areas for management and the most appropriate management actions at regional to local scales. The Science Framework and geospatial crosscut are intended to complement the mitigation strategies associated with the Greater Sage-Grouse Land Use Plan amendments for the Department of the Interior Bureaus, such as the Bureau of Land Management, and the U.S. Forest Service.
Book Synopsis Conservation of Greater Sage-grouse on Public Lands in the Western U.S. by : Carl L. Wambold
Download or read book Conservation of Greater Sage-grouse on Public Lands in the Western U.S. written by Carl L. Wambold and published by . This book was released on 2002 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Our general objective is to identify a set of short-run (three to five years) policy alternatives that are based on a synthesis of empirical research into the needs of the greater sage-grouse(Centrocercus urophasianus) and its relationship to the sagebrush system. In other words, based on what we know from research, we try to identify the best set of policy alternatives for maintaining and increasing sage-grouse populations on public lands that policy makers could implement and expect some results within a three- to five-year time frame"--Page 1
Book Synopsis Endangered Ecosystems of the United States by : Reed F. Noss
Download or read book Endangered Ecosystems of the United States written by Reed F. Noss and published by . This book was released on 1995 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Habitat Selection and Nesting Ecology of Translocated Greater Sage-grouse by : Kayla Lane Balderson
Download or read book Habitat Selection and Nesting Ecology of Translocated Greater Sage-grouse written by Kayla Lane Balderson and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sagebrush ecosystems are one of the most imperiled ecosystems in North America. The cumulative effects of habitat loss, fragmentation and degradation of the sagebrush ecosystem threaten the persistence of the Greater Sage-grouse. Sage-grouse depend on healthy, intact areas of sagebrush habitat throughout the year. In Alberta, the sage-grouse population is estimated to be only 5% of what it was in 1968. During the spring of 2011 and 2012, 41 sage-grouse were fitted with GPS transmitters and translocated from stable populations in Montana to active lek sites in southeast Alberta. I conducted research to improve our understanding of translocation as a management tool, and how translocated sage-grouse are affected by anthropogenic features. I examined nesting ecology including the differences in post-release movements between nesting and non-nesting hens and the extent to which nest success is affected by anthropogenic features. I also identified habitat that translocated sage-grouse select in relation to anthropogenic and natural features. My research documented some of the largest post-release movement distances, rates and areas ever recorded for grouse after being translocated. Average weekly linear distance travelled was 56 km and average area traversed was 1944 km2. Non-nesting hens had significantly higher movement rates than nesting hens. Movement rates of nesting hens decreased during the nest initiation period, whereas movement rates of non-nesting hens did not decrease until 6 weeks later. Apparent annual hen survival ranged between 31-72% across the study period. Nest initiation (53%) and nest success (29%) were low compared to other sage-grouse populations across their range. Nest success decreased with increasing distance from trees, power lines and settlements, suggesting that translocated hens are naïve to the release area and do not recognize the risks that are typically associated with certain anthropogenic features. Translocated sage-grouse were more likely to be observed, with increasing distance from all of the anthropogenic features included in the movement models: as far as 3 km from trees and gas wells, 10 km from buildings and 15 km from settlements, at least 23 km from power lines and 2.5 km from roads. Interaction models suggest that sage-grouse are avoiding anthropogenic features because of the disturbance of the features themselves, and not because the features occur in poor sagebrush habitat. My results indicate that the effects of power lines, buildings, trees and oil wells (up to 5 km) on the occurrence of sage-grouse were largest, suggesting that these features should be prioritized for removal. However, it is likely that cumulative effects of some or all anthropogenic features cause sage-grouse to select habitat further away from these features. The predicted intensity map I generated could be used to help strategically guide habitat enhancement efforts in the study area. Habitat enhancements would best be focused in areas where predicted intensity was high and suitable habitat was present yet no sage-grouse were observed, with the goal of increasing the likelihood of sage-grouse use within those areas. Future assessments of proposed developments should consider the construction of all new anthropogenic features as a potential detriment to habitat quality.
Book Synopsis Saving Species on Private Lands by : Lowell E. Baier
Download or read book Saving Species on Private Lands written by Lowell E. Baier and published by Rowman & Littlefield. This book was released on 2020-03-09 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: Winner, Independent Press Award - Conservation/Green, 2021 The only hope for successful conservation of America’s threatened, endangered, and at-risk wildlife is through voluntary, cooperative partnerships that focus on private land, where over 75% of at-risk species can be found. Private landowners form the bedrock of these partnerships, and they have a long history of rising to meet the challenge of conservation. But they can’t do it alone. This book is a guide for private landowners who want to conserve wildlife. Whether engaged in farming, ranching, forestry, mining, energy development, or another business, private working lands all have value as wildlife habitat, with the proper management and financial support. This book provides landowners and their partners with a roadmap to achieve conservation compatible with their financial and personal goals. This book introduces the art and language of land management planning as well as regulatory compliance with laws such as the Endangered Species Act of 1973. It categorizes and explains the tools used by wildlife professionals to implement conservation on private lands. Moreover it documents the multitude of federal, state, local, and private opportunities for landowners to find financial and technical assistance in managing wildlife, from working with a local NGO to accessing the $6 billion per year available through the federal Farm Bill.
Download or read book Sage Spirit written by Dave Showalter and published by Braided River. This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: - Reveals an little-known yet iconic Western region that supports virtually all western wildlife species - A conservation priority area for Audubon, World Wildlife Fund, and the National Wildlife Federation, among others Located on the eastern side of the Rocky Mountains and stretching from Greater Yellowstone to Telluride, Colorado, the region known as the Sagebrush Sea is a unique wildlife habitat with an abundance of natural resources. For this reason it is treasured by conservationists, private land owners, and energy developers alike. The loss of this habitat would be catastrophic for important species like the Greater and Gunnison's Sage-grouse. Greater Sage-grouse were once found across thirteen western states, but due to energy development and conversion of land for agriculture, they now inhabit only half of their historic range. In addition, the gradual disappearance of sagebrush habitat in the West is having a profound effect on other wildlife species such as Brewer's sparrow, sage sparrow, sage thrasher, pygmy rabbit, mule deer, pronghorn, and more. Sage Spirit features each of these species and the threats they face. Photographer and writer Dave Showalter has documented the seasonal changes, animal behaviors, and migrations within the Sagebrush Sea. He is working with conservation leaders, government agencies, Native communities, and private landowners to tell the complete story of the ecosystem and the way humans are using the landscape. Through images and essays, Sage Spirit explains why responsible management of this fragile habitat is so vital. To learn more about Braided River and its mission: inspiring people to protect wild places through images and stories that change perspectives, please visit www.braidedriver.org
Book Synopsis Using Remote Sensing to Map Sagebrush Steppe Ecosystems by :
Download or read book Using Remote Sensing to Map Sagebrush Steppe Ecosystems written by and published by . This book was released on 2001 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Exploring Ecological Risks Facing Regional Sagebrush Ecosystems in the 21st Century by : Kyle A. Taylor
Download or read book Exploring Ecological Risks Facing Regional Sagebrush Ecosystems in the 21st Century written by Kyle A. Taylor and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Big sagebrush (Artemisia tridentata) ecosystems have experienced loss over large portions of their historic range throughout the intermountain western United States over the last two centuries. Leading into the 21st century, much of this loss could be attributed to anthropogenic land conversion -- particularly from regional population growth, agricultural development, and the spread of invasive species. Over the course of the 21st century, climate change and invasive grassland conversion (Bromus tectorum) are expected to further alter the structure of regional sagebrush ecosystems, potentially contributing to range loss for big sagebrush and its many obligate species. My overall objective was to investigate the exposure of sagebrush ecosystems to risks from climate change and invasive species spread. I developed a series of species distribution models (SDMs) for three major sagebrush subspecies and compare the trajectory of regional sagebrush ecosystems under future climate conditions. I assessed my confidence in range projections for big sagebrush under future climate conditions using a sensitivity analysis to explore deficiencies in the underlying data behind my SDMs. Lastly, I attempted to assess the invasibility of climatically-stable sagebrush ecosystems by developing and deploying a process-based demographic model for cheatgrass at sites throughout the intermountain region. I implemented a series of big sagebrush species distribution models (SDMs) fit to individual subspecies records of big sagebrush. I used climate variables previously described as limiting for big sagebrush as explanatory data and extrapolate the models into mid-century and end-of-century conditions using an ensemble of recent global circulation model (GCM) data. I expected all three big sagebrush subspecies to respond negatively to increases in temperature and drier summer conditions forecasted for much of the intermountain region, assuming that future environmental conditions would warm beyond the environmental tolerances to which big sagebrush is physiologically adapted to. However, at the subspecies level, this did not appear to be the case. Wyoming big sagebrush (Artemisia tridentata ssp. wyomingensis) and basin big sagebrush (Artemisia tridentata ssp. tridentata) both demonstrated slight range expansion, largely along elevational gradients, under end-of-century forecasts across GCMs. Although experiencing loss within southern portions of their current range, the warmer winter conditions and slightly drier summer conditions forecasted for wyomingensis and tridentata are not so unusual that the subspecies don’t currently encounter these conditions within portions of their current range. Notably, mountain big sagebrush (Artemisia tridentata ssp. vaseyana) does respond negatively to future climate conditions, with winter temperatures increasing beyond what the subspecies experiences across its current range. Unlike ssp. tridentata and wyomingensis, vaseyana does not appear to have a large elevational gradient to retreat into under future climate conditions, which could result in potentially large losses of its current range if the subspecies is unable to adapt and compete under warmer conditions. In order to better indicate confidence in SDM predictions for big sagebrush, I used a Monte Carlo-based sensitivity analysis to demonstrate how uncertainties attributed to occurrence, absence, and climate data biases propagate through two commonly used SDM algorithms (Generalized Linear Models [GLMs] and Random Forests [RF]) for sagebrush ecosystems dominated by ssp. wyomingensis and tridentata. I derived predictive intervals for both GLM and RF and used the intervals to produce envelopes indicating areas of high and low predictive confidence in SDM predictions and explore how bias can contribute to latitudinal and elevational drift in suitability predictions. Both algorithms demonstrated sensitivities to climate and presence-record uncertainty that translated to large geographic uncertainty in predictions. I found that RF is more sensitive to bias than GLM, and that climate and presence record bias contributed to greater predictive ambiguity than absence record uncertainty. I found that uncertainties in predictions arising from data uncertainty could easily produce the same magnitude of range shift as those observed under mid-century (2050) predictions of distributional change for big sagebrush under climate change, suggesting that mid-century forecasts of change for big sagebrush are not so unusual that they couldn’t also be explained by biases affecting underlying data. However, many late-century (2100) predictions of suitability change appear to diverge from what was observed in our sensitivity analysis and deserve greater confidence. As roughly half of climatically suitable space available to big sagebrush throughout the intermountain region has experienced some degree of invasion by cheatgrass, it’s continued spread is an important factor to consider in assessing the long-term viability of big sagebrush ecosystems. Using a soil hydrology model (SOILWAT) and a meta-analysis conducted from a number of studies of cheatgrass’ demography and physiology, I built a process-based model that simulates cheatgrass population growth over time. I applied the model to current climate conditions at a number of sites sampled from sagebrush ecosystem subspecies strata across the intermountain region and found detectable differences in population suitability response. The cheatgrass demographic model demonstrates detectable differences in population response between montane sites (suitable for ssp. vaseyana) and basin sites (suitable for ssp. wyomingensis and tridentata) that suggest basin subspecies ranges are more suitable for cheatgrass than montane sites. I also demonstrate that basin subspecies are typically closer to known invasive annual grasslands throughout the intermountain region, and are probably more susceptible to cheatgrass propagule pressure. A synthesis of results across my studies suggests differing fates for regional sagebrush ecosystems. Although ssp. wyomingensis and tridentata dominated sagebrush ecosystems may be potentially robust to future climate change, they demonstrate a greater risk to cheatgrass invasion, which could challenge the long-term stability of sagebrush ecosystems in the basin interior of the intermountain region. Conversely, although montane sagebrush ecosystems dominated by ssp. vaseyana may be at comparatively less risk of cheatgrass invasion, these sagebrush ecosystems will face greater exposure to climate change stressors over the course of the 21st century.
Book Synopsis Science Framework for Conservation and Restoration of the Sagebrush Biome by :
Download or read book Science Framework for Conservation and Restoration of the Sagebrush Biome written by and published by . This book was released on 2017 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Science Framework is intended to link the Department of the Interiors Integrated Rangeland Fire Management Strategy with long-term strategic conservation actions in the sagebrush biome. The Science Framework provides a multiscale approach for prioritizing areas for management and determining effective management strategies within the sagebrush biome. The emphasis is on sagebrush (Artemisia spp.) ecosystems and Greater sage-grouse (Centrocercus urophasianus). The approach provided in the Science Framework links sagebrush ecosystem resilience to disturbance and resistance to nonnative, invasive plant species to species habitat information based on the distribution and abundance of focal species. A geospatial process is presented that overlays information on ecosystem resilience and resistance, species habitats, and predominant threats and that can be used at the mid-scale to prioritize areas for management. A resilience and resistance habitat matrix is provided that can help decisionmakers evaluate risks and determine appropriate management strategies. Prioritized areas and management strategies can be refined by managers and stakeholders at the local scale based on higher resolution data and local knowledge. Decision tools are discussed for determining appropriate management actions for areas that are prioritized for management. Geospatial data, maps, and models are provided through the U.S. Geological Survey (USGS) ScienceBase and Bureau of Land Management (BLM) Landscape Approach Data Portal. The Science Framework is intended to be adaptive and will be updated as additional data become available on other values and species at risk. It is anticipated that the Science Framework will be widely used to: (1) inform emerging strategies to conserve sagebrush ecosystems, sagebrush dependent species, and human uses of the sagebrush system, and (2) assist managers in prioritizing and planning on-the-ground restoration and mitigation actions across the sagebrush biome.
