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The Sevilleta LTER supports a long-term, integrated, interdisciplinary research program addressing key hypotheses on pattern and process in aridland ecosystems. Sevilleta LTER research includes studies in desert grassland and shrubland communities, and riparian and mountain forests emphasizing pulse driven processes in space and time. Key drivers (e.g., climate, fire, water, resource availability) govern dynamics in each landscape component. Our focus on how biotic and abiotic drivers affect spatial and temporal dynamics of aridland ecosystems allows us to conduct long-term research that addresses important basic theories and yet has significant relevance to regional, national and international priorities. The...
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Grasslands of the Sky Islands region once covered over 13 million acres in southeastern Arizona and adjacent portions of New Mexico, Sonora, and Chihuahua. Attempts to evaluate current ecological conditions suggest that approximately two thirds of these remain as intact or restorable grassland habitat. These grasslands provide watershed services such as flood control and aquifer recharge across the region, and continue to support dozens of species of concern. Prioritizing conservation interventions for these remaining grassland blocks has been challenging. Reliable data on condition and conservation value of grasslands in the region have not been systematically summarized. State and national boundaries further complicate...
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In 2005, the New Mexico Bureau of Land Management (BLM) launched the Restore New Mexico initiative with the goal of restoring disturbed lands on a landscape scale through an ambitious partnership approach. What began as a concept has become a widely-successful restoration and reclamation program involving numerous agencies, organizations, ranchers and industry groups. Landscape restoration in New Mexico has focused on controlling invasive brush species, improving riparian habitat, reducing woodland encroachment, and reclaiming abandoned oil and gas well pads. In many areas, historic overuse of the land has transformed fragile desert grasslands and open woodlands into virtual wastelands of creosote and mesquite,...
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The comprehensive conservation plan for Sevilleta National Wildlife Refuge will serve as a management tool to be used by the refuge staff and partners in the preservation and restoration of the ecosystem’s natural resources. In that regard, the plan will guide management decisions over the next 15 years and set forth strategies for achieving refuge goals and objectives within that time frame. The management actions in this document reflect a need to achieve many objectives.
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Our mission is to develop and maintain a cost-effective, central information source and inventory of the locations, biology, and status of all threatened, endangered, rare, and at-risk plants and animals in Nevada. We use the best available biological data to continually evaluate conservation priorities for over 700 native animals, plants, and vegetation types, focusing on those that are at greatest risk of extinction or serious decline. As a non-regulatory, independent resource for scientifically objective data, environmental review, and technical assistance and expertise, we support the needs of diverse planning, conservation management, research, education, and economic development activities in Nevada. The...
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FY2017This dataset provides a near-real-time estimate of 2017 herbaceous annual cover with an emphasis on annual grass (Boyte and Wylie. 2016. Near-real-time cheatrass percent cover in the Northern Great Basin, USA, 2015. Rangelands 38:278-284.) This estimate was based on remotely sensed enhanced Moderate Resolution Imaging Spectroradiometer (eMODIS) Normalized Difference Vegetation Index (NDVI) data gathered through June 19, 2017. This is the second iteration of an early estimate of herbaceous annual cover for 2017 over the same geographic area. The previous dataset used eMODIS NDVI data gathered through May 1 (https://doi.org/10.5066/F7445JZ9). The pixel values for this most recent estimate ranged from 0 to100%...
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Weed presence in Idaho, consolidated from datasets provided by BLM Boise District, BLM Twin Falls District, BLM Idaho Falls District, BLM Coeur d'Alene District, and the Idaho Department of Agriculture, from December 2005. Many errors noted. Users must review attributes before using. No corrections to any errors or inconsistencies have been made. See supplementary information. Approved by data steward 10/15/2008 Truncation of attributes may have occurred when File Geodatabase exported to a shapfile. Draft standards such as genus/species exist in the database design, but were not used. Some fields such as National ownership, local ownership, and source are inconsistently or incorrectly used. The draft standards...
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This dataset depicts noxious and invasive weed infestations in Oregon within the Bureau of Land Management (BLM) districts of Burns, Medford, and Roseburg. Attributes are provided that give basic information about the weed infestation site such as the species of weed, how many plants there are, when the site was discovered, when the site was last revisited, whether this is a current or historical site, area of the site in acres and hectares, Bureau of Land Management district, map coordinates, and accuracy of map coordinates.
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The dataset provides a spatially explicit estimate of 2019 herbaceous annual percent cover predicted on May 1st with an emphasis on annual grasses. The estimate is based on the mean output of two regression-tree models. For one model, we include, as an independent variable amongst other independent variables, a dataset that is the mean of 17-years of annual herbaceous percent cover (https://doi.org/10.5066/F71J98QK). This model's test mean error rate (n = 1670), based on nine different randomizations, equals 4.9% with a standard deviation of +/- 0.15. A second model was developed that did not include the mean of 17-years of annual herbaceous percent cover, and this model's test mean error rate (n = 1670), based...
We integrated 250-m enhanced Moderate Resolution Imaging Spectroradiometer (eMODIS) Normalized Difference Vegetation Index (NDVI) with land cover, biogeophysical (e.g., soils, topography) and climate data into regression-tree software (Cubist®). We integrated this data to create a time series of spatially explicit predictions of herbaceous annual vegetation cover in sagebrush ecosystems, with an emphasis on annual grasses. Annual grass cover in sagebrush ecosystems is highly variable year-to-year because it is strongly dependent on highly variable weather patterns, particularly precipitation timing and totals. Annual grass cover also reflects past disturbances and management decisions. We produced 17 consecutive...
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This map shows the grasslands priority conservation areas (GPCAs) within North America's Central Grasslands, an ecosystem considered among the most threatened in the continent and the world. GPCAs are defined as areas of tri-national importance due to their ecological significance and threatened nature, which are in need of international cooperation for their successful conservation. In 2004, 55 GPCAs were identified by biodiversity experts through research and a workshop co-organized by the CEC. Details of the initial selection process can be found in North American Grassland Priority Conservation Areas: Technical Report and Documentation, and the CEC publication Grasslands: Toward a North American Conservation...
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Planning in the National Park Service guides informed and insightful decisions that provide relevant and timely direction to park management, and informs future decision-making for each national park system unit in accord with its stated mission. Planning also provides methods and tools for resolving issues in ways that minimize conflicts and promotes mutually beneficial solutions - solutions that articulate how public enjoyment of the parks can be part of a strategy for ensuring that resources are protected unimpaired for future generations. The National Park Service prepares a variety of planning and environmental documents to help guide management of park resources and visitor use and activity. The Park Planning...
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weeds_poly: This is a depiction of Noxious and Invasive Weed infestations in Oregon and Washington. Attributes are provided that give basic information about the weed infestation site such as the species of weed, how many plants there are, when the site was discovered, whether this is a current or historical site, etc.
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We developed habitat suitability models for invasive plant species selected by Department of Interior land management agencies. We applied the modeling workflow developed in Young et al. 2020 to species not included in the original case studies. Our methodology balanced trade-offs between developing highly customized models for a few species versus fitting non-specific and generic models for numerous species. We developed a national library of environmental variables known to physiologically limit plant distributions (Engelstad et al. 2022 Table S1: https://doi.org/10.1371/journal.pone.0263056) and relied on human input based on natural history knowledge to further narrow the variable set for each species before...
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Riparian grasslands dominated by big sacaton (Sporobolus wrightii) once covered floodplains across the southwest, but have been reduced to some 5% of their historical extent. Sacaton stands that remain provide key resources for watershed function, wildlife, and livestock—yet may need special management to sustain these benefits. This report describes mapping methods and management recommendations that can be applied to riparian grasslands throughout the region. By examining sacaton grasslands in the Las Cienegas National Conservation Area, this project also refines methods for evaluating ecological condition, and provides managers at this site with detailed maps of both high-quality habitat and restoration needs.
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Conceptos: ¿Qué son las especies? La gran familia ¿Cuántas especies hay? Distribución de las especies Extinción Categorías de riesgo en: México | Mundo | CITES Conocimiento y uso: EncicloVida Especies endémicas Especies prioritarias Especies para la reforestación Especies de malezas Herbario virtual Especies invasoras Aves Monitoreo de especies Catálogos de especies Colecciones científicas Sistema de Información Biótica Red Mundial de Información sobre Biodiversidad Para conocer más: Bibliografía Sitios Web
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The Conservation Effects Assessment Project (CEAP) is a multi-agency effort to scientifically quantify the environmental benefits of conservation practices used by private landowners participating in U.S. Department of Agriculture (USDA) and other conservation programs. Project findings will guide USDA conservation policy and program development and help farmers and ranchers to make informed conservation choices. The three principal components of CEAP — the national assessment, the watershed assessment studies, and the bibliographies and literature reviews — contribute to the evolving process of building the science base for conservation. That process includes research, monitoring and data collection, modeling,...
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Locations of exotic (Invasive) plant species mapped by CBI on the Crestridge Ecological Reserve in 2000.
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This data release includes metadata and tabular data that document Acacia koa density, basal area, and grass cover before and after the 2018 Keauhou Ranch Fire in Hawaii Volcanoes National Park. Specifically, we asked three questions: 1) At what level of precision can pre-fire grass cover be accurately estimated from oblique aerial photos? 2) How are post-fire Acacia koa regeneration densities affected by fire severity? 3) How are post-fire A. koa regeneration densities affected by pre-fire grass cover and its interaction with fire severity? We collected burn severity and post-fire regeneration data from 30 transects stratified across mid-elevation woodland, montane woodland, and montane shrubland. We evaluated...
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Topock Marsh is a large wetland adjacent to the Colorado River and main feature of Havasu National Wildlife Refuge (Havasu NWR) in southern Arizona. In 2010, U.S. Fish and Wildlife Service (FWS) and Bureau of Reclamation began a project to improve water management capabilities at Topock Marsh and protect habitats and species. Initial construction required a drawdown, which caused below-average inflows and water depths in 2010-2011. Co-applicants Daniels and Haegele of FORT monitored Topock Marsh during the drawdown and immediately after, thus obtained information on immediate effects. However, stress from the drawdown may have a delayed effect on aquatic resources; additionally, significant changes to the infrastructure...
Categories: Data, Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: 2013, AZ-04, Applications and Tools, Arizona, CA-08, All tags...


map background search result map search result map Weed Presence in Idaho (through 2005) Development of a Decision Support Tool for Water and Resource Management using Biotic, Abiotic, and Hydrological Assessments of Topock Marsh Exotic Species Locations, Crestridge, San Diego Oregon (USA) Bureau of Land Management (BLM) Weed Areas Priority Conservation Areas: Grasslands, 2010 Sevilleta LTER Sustaining the Grassland Sea Nevada Natural Heritage Program Sacaton Riparian Grasslands Grazing Lands National Assessment Restore New Mexico National Park Service Planning, Environment & Public Comment (PEPC) Biodiversidad Mexicana: Especies Sevilleta National Wildlife Refuge Comprehensive Conservation Plan Near-real-time Herbaceous Annual Cover in the Great Basin Early Estimates of Herbaceous Annual Cover in the Sagebrush Ecosystem (May 1, 2019) BLM REA NGB 2011 IV Weed Data OR pt Hawaii Volcanoes National Park plant community and fire severity data, 2018-2020 INHABIT species potential distribution across the contiguous United States (ver. 3.0, February 2023) Exotic Species Locations, Crestridge, San Diego Hawaii Volcanoes National Park plant community and fire severity data, 2018-2020 Development of a Decision Support Tool for Water and Resource Management using Biotic, Abiotic, and Hydrological Assessments of Topock Marsh Sevilleta National Wildlife Refuge Comprehensive Conservation Plan Sevilleta LTER Sacaton Riparian Grasslands Sustaining the Grassland Sea BLM REA NGB 2011 IV Weed Data OR pt Oregon (USA) Bureau of Land Management (BLM) Weed Areas Restore New Mexico Nevada Natural Heritage Program Weed Presence in Idaho (through 2005) Near-real-time Herbaceous Annual Cover in the Great Basin Early Estimates of Herbaceous Annual Cover in the Sagebrush Ecosystem (May 1, 2019) Biodiversidad Mexicana: Especies Priority Conservation Areas: Grasslands, 2010 INHABIT species potential distribution across the contiguous United States (ver. 3.0, February 2023) Grazing Lands National Assessment National Park Service Planning, Environment & Public Comment (PEPC)