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Chihuahuan Desert landscapes exemplify the ecological conditions, vulnerability, and management challenges in arid and semi-arid regions around the world. The goal of the Jornada Basin Long Term Ecological Research program (JRN LTER) established in 1982 is to understand and quantify the key factors and processes controlling ecosystem dynamics and patterns in Chihuahuan Desert landscapes. In collaboration with the Jornada Experimental Range (USDA ARS), studies initiated in 1915 have been incorporated into the JRN LTER program. Previous research focused on desertification, a state change from perennial grasslands to woody plant dominance that occurs globally. Based on findings from growing long-term databases, the...
Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: CMQ3, Chihuahuan Desert, DLCC, Desert LCC, English, All tags...
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The Central Arizona Grassland Conservation Strategy (CAGCS) was signed (2010) by three signatory agencies to the charter with complementary roles and responsibilities in managing historic grassland ecosystems and/or the wildlife species that inhabit them. The Bureau of Land Management (BLM) management emphasis within the Agua Fria National Monument (AFNM) is to conserve and restore diverse habitats, vegetative communities and corridors of connectivity to sustain a wide range of native species. The Arizona Game and Fish Department (AGFD) hold the public trust responsibility of managing the wildlife that inhabits these ecosystems. This includes but is not limited to gathering and managing wildlife data, and providing...
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Sky Island grasslands of central and southern Arizona, southern New Mexico and northern Mexico form the “grassland seas” that surround small forested mountain ranges in the borderlands. Their unique biogeographical setting and the ecological gradients associated with “Sky Island mountains” add tremendous floral and faunal diversity to these grasslands and the region as a whole. Sky Island grasslands have undergone dramatic vegetation changes over the last 130 years including encroachment by shrubs, loss of perennial grass cover and spread of non-native species. Changes in grassland composition and structure have not occurred uniformly across the region and they are dynamic and ongoing. In 2009, The National Fish...
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How well are we protecting common plants and animals? Gap Analysis is the science of answering this question. Developing the data and tools to support that science is the mission of the USGS Gap Analysis Program (GAP). GAP works to ensure that common species – those that are not officially endangered – remain common by identifying those species and plant communities that are not adequately represented in existing conservation lands. Learn more about Gap Analysis >> We work with a wide range of government, academic, non-profit and private partners, providing them with essential data and analyses that they can use to protect the habitats on which the survival of common species depends.
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Some of the SNK rasters intentionally do not align or have the same extent. These rasters were not snapped to a common raster per the authors' discretion. Please review selected rasters prior to use. These varying alignments are a result of the use of differing source data sets and all products derived from them. We recommend that users snap or align rasters as best suits their own projects. - This dataset consists of raster distribution maps for terrestrial vertebrate species in Alaska. Individual species distribution maps were developed using the best available known occurrence points for each species and modeled using MaxEnt software and a series of environmental predictor variables. Output maps were clipped...
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Some of the SNK rasters intentionally do not align or have the same extent. These rasters were not snapped to a common raster per the authors' discretion. Please review selected rasters prior to use. These varying alignments are a result of the use of differing source data sets and all products derived from them. We recommend that users snap or align rasters as best suits their own projects. - This dataset consists of raster distribution maps for terrestrial vertebrate species in Alaska. Individual species distribution maps were developed using the best available known occurrence points for each species and modeled using MaxEnt software and a series of environmental predictor variables. Output maps were clipped...
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Some of the SNK rasters intentionally do not align or have the same extent. These rasters were not snapped to a common raster per the authors' discretion. Please review selected rasters prior to use. These varying alignments are a result of the use of differing source data sets and all products derived from them. We recommend that users snap or align rasters as best suits their own projects. - This dataset consists of raster distribution maps for terrestrial vertebrate species in Alaska. Individual species distribution maps were developed using the best available known occurrence points for each species and modeled using MaxEnt software and a series of environmental predictor variables. Output maps were clipped...
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Some of the SNK rasters intentionally do not align or have the same extent. These rasters were not snapped to a common raster per the authors' discretion. Please review selected rasters prior to use. These varying alignments are a result of the use of differing source data sets and all products derived from them. We recommend that users snap or align rasters as best suits their own projects. - This dataset consists of raster distribution maps for terrestrial vertebrate species in Alaska. Individual species distribution maps were developed using the best available known occurrence points for each species and modeled using MaxEnt software and a series of environmental predictor variables. Output maps were clipped...
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This report is volume 2 of a two-volume ecological assessment of grassland ecosystems in the Southwestern United States. Broad-scale assessments are syntheses of current scientific knowledge, including a description of uncertainties and assumptions, to provide a characterization and comprehensive description of ecological, social, and economic components within an assessment area. Volume 1 of this assessment focused on the ecology, types, conditions, and management practices of Southwestern grasslands. Volume 2 (this volume) describes wildlife and fish species, their habitat requirements, and species-specific management concerns, in Southwestern grasslands. This assessment is regional in scale and pertains primarily...
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REAs synthesize the best available information about resource conditions and trends within an ecoregion. They highlight and map areas of high ecological value, including important wildlife habitats and corridors, and gauge their potential risks from climate change, wildfires, invasive species, energy development, and urban growth. REAs also map areas that have high energy development potential, and relatively low ecological value, which could be best-suited for siting future energy development. In addition, REAs establish landscape-scale baseline ecological data to gauge the effect and effectiveness of future management actions. The Sonoran Desert REA was initiated in July 2010. It has been completed and peer reviewed...
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Our Mission & History Volunteers in the Tumacacoris. Photo by Trevor Hare Sky Island Alliance is a science-based conservation organization. We are dedicated to the protection and restoration of the rich natural heritage of native species and habitats in the Sky Island region of the southwestern United States and northwestern Mexico. We work with volunteers, scientists, land owners, public officials, and government agencies to establish protected areas, restore healthy landscapes, and promote public appreciation of the region's unique biological diversity. Sky Island Alliance pioneered landscape-level conservation planning by integrating the science of conservation biology with grassroots organizing and on-the-ground...
Synthetic bat call parameters recorded in an anecolic chamber using full spectrum receivers. Data were then converted to zero-crossing format to measure parameters such as minimum, average and maximum frequency, number of echoes and number of correctly identified files
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In addition to current distribution of each mammal species, this map shows their current and near-term status within the ecoregion. Current, long-term, and summary bioclimate data is also include for several of these mammal species. The input datasets used in the distribution model are also included. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. These data may not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications that potential...
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Some of the SNK rasters intentionally do not align or have the same extent. These rasters were not snapped to a common raster per the authors' discretion. Please review selected rasters prior to use. These varying alignments are a result of the use of differing source data sets and all products derived from them. We recommend that users snap or align rasters as best suits their own projects. - This dataset consists of raster distribution maps for terrestrial vertebrate species in Alaska. Individual species distribution maps were developed using the best available known occurrence points for each species and modeled using MaxEnt software and a series of environmental predictor variables. Output maps were clipped...
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Some of the SNK rasters intentionally do not align or have the same extent. These rasters were not snapped to a common raster per the authors' discretion. Please review selected rasters prior to use. These varying alignments are a result of the use of differing source data sets and all products derived from them. We recommend that users snap or align rasters as best suits their own projects. - This dataset consists of raster distribution maps for terrestrial vertebrate species in Alaska. Individual species distribution maps were developed using the best available known occurrence points for each species and modeled using MaxEnt software and a series of environmental predictor variables. Output maps were clipped...
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Some of the SNK rasters intentionally do not align or have the same extent. These rasters were not snapped to a common raster per the authors' discretion. Please review selected rasters prior to use. These varying alignments are a result of the use of differing source data sets and all products derived from them. We recommend that users snap or align rasters as best suits their own projects. - This dataset consists of raster distribution maps for terrestrial vertebrate species in Alaska. Individual species distribution maps were developed using the best available known occurrence points for each species and modeled using MaxEnt software and a series of environmental predictor variables. Output maps were clipped...
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This report is volume 1 of a two-volume ecological assessment of grassland ecosystems in the Southwestern United States. Broadscale assessments are syntheses of current scientific knowledge, including a description of uncertainties and assumptions, to provide a characterization and comprehensive description of ecological, social, and economic components within an assessment area. Volume 1 of this assessment focuses on the ecology, types, conditions, and management practices of Southwestern grasslands. The second volume, due to be published in 2005, describes wildlife and fish species, their habitat requirements, and species-specific management concerns, in Southwestern grasslands. This assessment is regional in...
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This virtual flora and fauna was created to serve as a gateway for the environmental research community, as well as the general public, to access and contribute to a growing collection of specimen records and observations. These data represent the products of MABA research expeditions as well as historic data from herbaria, museum collections, and scientific literature. Sky Island Alliance's MABA project is a visionary initiative to catalog, protect, and restore one of the world's premier biodiversity hotspots - the Southwestern U.S. and Northwestern Mexico’s Madrean Sky Island region (Sonora, Arizona, Chihuahua, and New Mexico). MABA is committed to inventorying the wildlands and wildlife of these Sky Islands —...
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Heritage Data Management System - HDMS The HDMS is part of a global network of more than 80 Natural Heritage Programs and Conservation Data Centres. HDMS information is available so Arizonans can make prudent decisions weighing future development, economic growth, and environmental integrity. Using published and unpublished reports, data collected by cooperating agencies, review of scientific collections, collaboration with professionals and many other sources of information, HDMS identifies wildlife, plants and geographic areas of special concern in Arizona, and consolidates information about their status and distribution within the State. Learn more about Arizona HDMS. -On-line Environmental Review Tool (ERT)....
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Some of the SNK rasters intentionally do not align or have the same extent. These rasters were not snapped to a common raster per the authors' discretion. Please review selected rasters prior to use. These varying alignments are a result of the use of differing source data sets and all products derived from them. We recommend that users snap or align rasters as best suits their own projects. - This dataset consists of raster distribution maps for terrestrial vertebrate species in Alaska. Individual species distribution maps were developed using the best available known occurrence points for each species and modeled using MaxEnt software and a series of environmental predictor variables. Output maps were clipped...


map background search result map search result map Sonoran Desert Rapid Ecoregional Assessment (REA) Madrean Archipelago Biodiversity Assessment (MABA) Project Jornada Bibliography Sky Island Alliance Assessment of Grassland Ecosystem Conditions in the Southwestern United States, Volume 1 Assessment of Grassland Ecosystem Conditions in the Southwestern United States: Wildlife and Fish, Volume 2 Central Arizona Grassland Conservation Strategy National Gap Analysis Program (GAP) Sky Island Grassland Assessment Arizona's Natural Heritage Program BLM REA SNK 2010 Alaska Gap Analysis Project: Breeding Season Distribution Map for Branta canadensis BLM REA SNK 2010 Alaska Gap Analysis Project: Year Round Distribution Map for Lepus othus BLM REA SNK 2010 Alaska Gap Analsysis Project: Year Round Distribution Map for Ursus arctos BLM REA SNK 2010 Alaska Gap Analysis Project: Year Round Distribution Map for Castor canadensis BLM REA SNK 2010 Alaska Gap Analysis Project: Year Round Distribution Map for Ovibos moschatus BLM REA SNK 2010 Alaska Gap Analsysis Project: Year Round Distribution Map for Rangifer tarandus BLM REA SNK 2010 Alaska Gap Analysis Project: Breeding Season Distribution Map for Chen canagica BLM REA SNK 2010 Alaska Gap Analysis Project: Breeding Season Distribution Map for Limosa haemastica BLM REA MBR 2010 Terrestrial Species Mammals Status - Brazilian Free-tailed Bat Acoustic Parameters Collected in an Anechoic Chamber Acoustic Parameters Collected in an Anechoic Chamber Jornada Bibliography Central Arizona Grassland Conservation Strategy Sky Island Grassland Assessment Sky Island Alliance Madrean Archipelago Biodiversity Assessment (MABA) Project Sonoran Desert Rapid Ecoregional Assessment (REA) Arizona's Natural Heritage Program BLM REA MBR 2010 Terrestrial Species Mammals Status - Brazilian Free-tailed Bat BLM REA SNK 2010 Alaska Gap Analysis Project: Breeding Season Distribution Map for Chen canagica BLM REA SNK 2010 Alaska Gap Analysis Project: Breeding Season Distribution Map for Limosa haemastica BLM REA SNK 2010 Alaska Gap Analysis Project: Breeding Season Distribution Map for Branta canadensis BLM REA SNK 2010 Alaska Gap Analysis Project: Year Round Distribution Map for Lepus othus BLM REA SNK 2010 Alaska Gap Analsysis Project: Year Round Distribution Map for Ursus arctos BLM REA SNK 2010 Alaska Gap Analysis Project: Year Round Distribution Map for Castor canadensis BLM REA SNK 2010 Alaska Gap Analysis Project: Year Round Distribution Map for Ovibos moschatus BLM REA SNK 2010 Alaska Gap Analsysis Project: Year Round Distribution Map for Rangifer tarandus Assessment of Grassland Ecosystem Conditions in the Southwestern United States, Volume 1 Assessment of Grassland Ecosystem Conditions in the Southwestern United States: Wildlife and Fish, Volume 2 National Gap Analysis Program (GAP)