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Grasslands comprise a small part of the Chihuahuan Desert but are vital to the biological diversity of the ecoregion. Characteristic grasses of the Chihuahuan Desert are tobosa (Pleuraphis mutica) and black grama (Bouteloua eriopoda) but other common species include alakali sacaton (Sporobolus airoides), big alkali sacaton (S. wrightii), mesa dropseed (S. flexuosus), blue grama (B. gracilis), sideoats grama (B. curtipendula ), hairy grama (B. hirsuta), slender grama (B. filiformis), chino grama (B. brevista), spruce top grama (B. chondrosioides), bush muhly (Muhlenbergia porteri), several three awns (Aristida spp.), and fluff grass (Dasyochloa pulchela) (Johnson 1974, Dinerstein et al. 2000). Many of the sites discussed...
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This file represents the final version of an assessment of the extent, condition, and distribution of grassland types in Arizona as indicated by expert interviews and field verification. Coverage includes the state of Arizona, Southwestern portions of the state of New Mexico, and the Northern portion of Sonora, Mexico.
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The Desert Renewable Energy Conservation Plan (DRECP), a major component of California's renewable energy planning efforts, will help provide effective protection and conservation of desert ecosystems while allowing for the appropriate development of renewable energy projects. The DRECP is focused on the desert regions and adjacent lands of seven California counties - Imperial, Inyo, Kern, Los Angeles, Riverside, San Bernardino, and San Diego. It is being prepared through an unprecedented collaborative effort between the California Energy Commission, California Department of Fish and Wildlife, the U.S. Bureau of Land Management, and the U.S. Fish and Wildlife Service also known as the Renewable Energy Action Team....
What are current conditions for important park natural resources? What are the critical data and knowledge gaps? What are some of the factors that are influencing park resource conditions? Natural Resource Condition Assessments (NRCAs) evaluate and report on the above for a subset of important natural resources in national park units (hereafter, parks). Focal study resources and indicators are selected on a park-by-park basis, guided by use of structured resource assessment and reporting frameworks. Considerations include park resource setting and enabling legislation (what are this park's most important natural resources?) and presently available data and expertise (what can be evaluated at this time?). In addition...
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Natural landscapes in the Southwestern United States are changing. In recent decades, rising temperatures and drought have led to drier conditions, contributed to large-scale ecological impacts, and affected many plant and animal species across the region. The current and future trajectory of climate change underscores the need for managers and conservation professionals to understand the impacts of these patterns on natural resources. In this regional assessment of the Southwest Climate Change Initiative, we evaluate changes in annual average temperatures from 1951–2006 across major habitats and large watersheds and compare these changes to the number of species of conservation concern that are found within these...
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El Espacio Digital Geográfico (ESDIG) de la SEMARNAT, muestra en mapas información sobre las características ambientales y sociales del país en temas como vegetación, uso del suelo, cuerpos de agua, suelos, clima, población, entre otros, así como de los resultados de programas ambientales y sociales dedicados al aprovechamiento, conservación y recuperación de los ecosistemas naturales de México. Los mapas desplegados son extraídos de la base de datos geográfica del SNIARN. La información contenida en ésta base ha sido generada por diferentes áreas de la Semarnat, sus órganos desconcentrados y descentralizados, así como también por el INEGI y diversas dependencias del Gobierno Federal.
We examined the biogeography of aquatic and semiaquatic Heteroptera (ASH) in the Grand Canyon (GC) ecoregion (GCE) on and adjacent to the southern Colorado Plateau. We report 89 ASH taxa in 86 species, 37 genera, and 14 families in the GCE, including 54 ASH taxa detected within or on the rims of GC and its major tributaries, a fauna 3.8-fold greater than previously reported. We tested 2 groups of biogeographic hypotheses to account for this high level of diversity, demonstrating an underlying pattern of mixed biogeographic affinity and strong landform-climate effects. Equal numbers of ASH taxa were derived from allochthonous (neotropical and nearctic) sources and autochthonous (range-centered) sources. A negative...
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Relative abundance of salt marsh habitat, by marine ecoregion. We compiled a global database on salt marshes in collaboration with UNEP-WCMC and with input from Paul Adam, University of New South Wales, Australia. In this database, habitat abundance was estimated using the array of point locations and GIS data holdings from this database and were broadly based on abundance as a proportion of the total coastline length in each ecoregion. Salt marshes were poorly covered in the literature for some parts of the Arctic coastline and from wide areas of the tropics where salt marshes were often overlooked or classified within mangrove areas. While efforts were made to target data searching for these regions, there may...
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Concerns about the influence of climate change on biota have emerged over the past decade, and responses in species populations and distribution patterns have already been documented (Parmesan 1996, Thomas and Lennon 1999). Current climates and communities will not simply migrate, but rather will re-form in novel ways over time (Fox 2007; Hunter et al. 1988; Williams and Jackson 2007). Due to the uncertainty of future climatic patterns and species responses, enduring features of the landscape (geophysical settings) are appropriate targets of assessment, planning, and conservation (Anderson and Ferree 2010, Beier and Brost 2010, Brost and Beier 2012; Hunter et al. 1988). Only recently have enduring features been...
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Refer to methods document for tables and figures:http://eemaps.consbio.webfactional.com/static/Docs/Climate_and_impacts_analysis_methods.pdfClimate Data Selection: Criteria set forth by the Utah Division of Natural Resources (UT-DWR) and Utah State office of the Bureau of Land Management (UT-BLM) specified that the time periods used in the analysis be consistent with those used in the Colorado Plateau Rapid Ecological Assessment Report (Bryce et al., 2012), the spatial resolution for the study area be downscaled from 4 km x 4 km pixel resolution to 1 km x 1 km, that data used for future climate projections be obtained from phase 5 of the Coupled Model Intercomparison Project (CMIP5; (Taylor et al., 2012), and that...
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Refer to methods document for tables and figures:http://eemaps.consbio.webfactional.com/static/Docs/Climate_and_impacts_analysis_methods.pdfClimate Data Selection: Criteria set forth by the Utah Division of Natural Resources (UT-DWR) and Utah State office of the Bureau of Land Management (UT-BLM) specified that the time periods used in the analysis be consistent with those used in the Colorado Plateau Rapid Ecological Assessment Report (Bryce et al., 2012), the spatial resolution for the study area be downscaled from 4 km x 4 km pixel resolution to 1 km x 1 km, that data used for future climate projections be obtained from phase 5 of the Coupled Model Intercomparison Project (CMIP5; (Taylor et al., 2012), and that...
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This dataset depicts polygons of white-tailed prairie dog colonies in Colorado digitized from figure 1 in the White-tailed Prairie Dog Conservation Assessment (Seglund et al. 2004). This dataset should be used with caution because there were few reference points to use during georeferencing. The original GIS data should be obtained directly from Seglund et al. if possible.
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This dataset depicts the current predicted distribution of major invasive vegetation in the State of Utah.Invasive classes were extracted from multiple datasets and then combined into a single raster dataset. A cell value of 1 was assigned where invasives were present and a value of 0 was assigned where they were absent .This invasive species composite (Upland, Riparian, Uncharacteristic Exotic Vegetation) was created from:1) LANDFIRE 120 EVT2180: Introduced Riparian Vegetation2181: Introduced Upland Vegetation-Annual Grassland2182: Introduced Upland Vegetation-Perennial Grassland and Forbland2183: Introduced Upland Vegetation-Annual and Biennial Forbland2184: Introduced Annual Grassland2) NatureServe Landcover...
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Raster dataset (30m resolution mask containing only "1" values) matching the 1 km resolution reporting units grid created for the Colorado Plateau Ecoregion.This dataset was used in the Utah-Colorado Plateau REA Stepdown terrestrial intactness analysis for summarizing raster input data to 1 km reporting units.
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This dataset provides an estimate of aquatic intactness (i.e. condition or integrity) across the Canyon Treefrog's potential distribution. Current aquatic intactness estimates are based on the extent to which human impacts such as water demand, agriculture, urban development, natural resource extraction, dams, diversions, and alterations have disrupted the hydrology, water quality, and habitat quality of aquatic systems across the state of Utah and the Colorado Plateau. Aquatic intactness values will be high in areas where these impacts are low.This HUC6 (12-Digit NHD Hydrologic Unit Code) resolution dataset was created for the Colorado Plateau REA stepdown analysis using the open-source logic modeling framework...
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This dataset represents the estimated historical distribution of Colorado River Cutthroat Trout across Utah and the the Colorado Plateau Ecoregion, based on Trout Unlimited's Conservation Success Index (CSI) data.Note, data were not available for the southeastern corner of the study site; please be aware of this gap in coverage. Conservation Success Index:Trout Unlimited developed the Conservation Success Index (CSI) in order to become more strategic and effective in our conservation efforts. Using the CSI, we can quantify and map the conservation status of all native coldwater fishes so that comparisons of existing condition, threats, future security, and management opportunities can be made across watersheds,...
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This dataset provides an estimate of aquatic intactness (i.e. condition or integrity) across the Roundtail Chub's potential distribution. Current aquatic intactness estimates are based on the extent to which human impacts such as water demand, agriculture, urban development, natural resource extraction, dams, diversions, and alterations have disrupted the hydrology, water quality, and habitat quality of aquatic systems across the state of Utah and the Colorado Plateau. Aquatic intactness values will be high in areas where these impacts are low.This HUC6 (12-Digit NHD Hydrologic Unit Code) resolution dataset was created for the Colorado Plateau REA stepdown analysis using the open-source logic modeling framework...
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This dataset provides an estimate of aquatic intactness (i.e. condition or integrity) across the Bon Cuthrout Trout C's potential distribution. Current aquatic intactness estimates are based on the extent to which human impacts such as water demand, agriculture, urban development, natural resource extraction, dams, diversions, and alterations have disrupted the hydrology, water quality, and habitat quality of aquatic systems across the state of Utah and the Colorado Plateau. Aquatic intactness values will be high in areas where these impacts are low.This HUC6 (12-Digit NHD Hydrologic Unit Code) resolution dataset was created for the Colorado Plateau REA stepdown analysis using the open-source logic modeling framework...


map background search result map search result map Salt Marsh Abundance by Marine Ecoregion Ecoregion "Magallanes" de Chile, Sudamerica Desert Renewable Energy Conservation Plan Extent and Condition of Grasslands in Arizona, Northern Mexico, and Southwestern New Mexico Natural Resource Condition Assessments Status and Distribution of Chihuahuan Desert Grasslands in the United States and Mexico Managing Changing Landscapes in the Southwestern United States Espacio Digital Geográfico (ESDIG) Summary and Initial Evaluation of Enduring Features Information for the Conterminous USA, with Evaluation of Potential Use for Ecoregion Assessment BLM REA COP 2014 ensemble tmin4560 anom.img BLM REA COP 2014 ensemble pr1530.img BLM REA COP 2014 UCS UT COP AI 553427 Bon Cuthrout Trout C Status HUC6 BLM REA COP 2014 Colorado River Cutthroat Trout Predicted Historical Distribution in Utah and COP, USA BLM REA COP 2014 UCS UT AI 163558 Roundtail Chub Status HUC6 BLM REA COP 2014 UCS UT AI 173510 Canyon Treefrog Status HUC6 BLM REA COP 2014 White Tailed Prairie Dog Predicted Current Distribution in the COP, USA BLM REA COP 2014 UT iv cs BLM REA COP 2014 1 km Reporting Units Matching (30m resolution) Raster Boundary Mask, Colorado Plateau Ecoregion BLM REA COP 2014 Boundary -- Utah COP RU 4KM Poly Dissolved BLM REA COP 2014 UCS UT AI 173510 Canyon Treefrog Status HUC6 BLM REA COP 2014 White Tailed Prairie Dog Predicted Current Distribution in the COP, USA BLM REA COP 2014 UCS UT AI 163558 Roundtail Chub Status HUC6 BLM REA COP 2014 UCS UT COP AI 553427 Bon Cuthrout Trout C Status HUC6 BLM REA COP 2014 Colorado River Cutthroat Trout Predicted Historical Distribution in Utah and COP, USA Desert Renewable Energy Conservation Plan Extent and Condition of Grasslands in Arizona, Northern Mexico, and Southwestern New Mexico BLM REA COP 2014 1 km Reporting Units Matching (30m resolution) Raster Boundary Mask, Colorado Plateau Ecoregion BLM REA COP 2014 Boundary -- Utah COP RU 4KM Poly Dissolved BLM REA COP 2014 UT iv cs Ecoregion "Magallanes" de Chile, Sudamerica BLM REA COP 2014 ensemble tmin4560 anom.img BLM REA COP 2014 ensemble pr1530.img Managing Changing Landscapes in the Southwestern United States Status and Distribution of Chihuahuan Desert Grasslands in the United States and Mexico Summary and Initial Evaluation of Enduring Features Information for the Conterminous USA, with Evaluation of Potential Use for Ecoregion Assessment Espacio Digital Geográfico (ESDIG) Natural Resource Condition Assessments Salt Marsh Abundance by Marine Ecoregion