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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...
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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Welcome to the Wind and Wildlife Landscape Assessment Tool (LAT), a collaboration organized by the American Wind Wildlife Institute (AWWI) and The Nature Conservancy (TNC). The LAT is designed as a landscape-level planning tool to identify sensitive wildlife habitat and areas that are likely to have low wildlife risk where wind energy development could be prioritized. Although the siting of individual wind energy projects will require on-the-ground surveys to verify data shown here, our hope is that this tool will provide stakeholders with information that facilitates the siting of wind energy in areas with minimal impacts to wildlife, as well as the development of conservation plans, monitoring plans and mitigation...
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A Vision for the Chihuahuan Desert The Chihuahuan Desert, shared by two nations, is one of the most biologically rich desert ecoregions in the world, alive with large mammals, birds, reptiles and an unmatched diversity of cactus species. The desert’s rivers, streams and springs are considered to be of global significance, home to fish species found nowhere else on earth. Our vision is a Chihuahuan Desert where governments, local communities, non-governmental organizations, academic institutions, landowners, and other stakeholders are working together to ensure that the richness and diversity of wildlife, habitats, natural communities, and ecological processes of the Chihuahuan Desert are conserved and, where necessary,...
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The Coordinating Institution for the Species and Specimens Thematic Network is a Consortium leads by "Instituto Nacional de Biodiversidad, INBio of Costa Rica" . The members of the consortrium are: Instituto Nacional de Biodiversidad, INBio (Costa Rica) Instituto de Investigación de Recursos Biológicos Alexander von Humboldt (Colombia) (Colombia) Museo Argentino de Ciencias Naturales (Argentina) Red de Herbarios de Centroamérica y el Caribe Natureserve (USA) The goal is to implement an electronic and institutional network dedicated to regional specimen information. Some of the specimen data of any given country resides in its own museums and herbariums, although a significant part of the data resides in museums...
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Los otros invertebrados de América del Sur, América Central y el Caribe (other invertebrates).
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Pima County makes extensive use of Geographical Information System (GIS) technology for making maps. For the Sonoran Desert Conservation Plan, this was an important technology for assembling the extensive existing data, both digital and non-digital, identifying critical gaps in the data and potential remedies, and providing a means for analyzing the information on biological and physical resources over the six million acre study area. SDCP Mapguide was created to display many of the natural resource GIS data layers, but Mapguide is being replaced with PimaMaps. You can use either to make your own overlays on aerial photos, line maps, or USGS topography. Customize your online map while panning and zooming on the...
P>1. Habitats are often connected by fluxes of energy and nutrients across their boundaries. For example, headwater streams are linked to surrounding riparian vegetation through invertebrate and leaf litter inputs, and there is evidence that consumers in downstream habitats are subsidised by resources flowing from headwater systems. However, the strength of these linkages and the manner in which potential headwater subsidies vary along climatic and disturbance gradients are unknown. 2. We quantified the downstream transport of invertebrates, organic matter and inorganic sediment from 60 fishless headwater streams in the Wenatchee River Basin located on the eastern slope of the Cascade Range in Washington, U.S.A....
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Yuma Ridgway’s rail (Rallus obsoletus yumanensis, hereafter, "rail") are an endangered species for which patches of emergent marsh within the Salton Sea watershed comprise a substantial portion of habitat for the species’ disjointed range in the southwestern United States. These areas of emergent marsh include: 1) marshes managed by federal (particularly the U.S. Fish and Wildlife Service’s Sonny Bono Salton Sea National Wildlife Refuge (SBSSNWR), state (California Department of Fish and Wildlife), and local (Imperial Irrigation District) resource agencies that are sustained by direct deliveries of Colorado River water; and 2) unmanaged marshes sustained by agricultural drainage water. Management of rail habitat...
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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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Texas is home to tens of thousands of native animal and plant species. These species form the fabric of over 800 habitat types, from bottomland hardwood forests, big tooth maple canyons, to black grama grasslands. Hundreds of these species occur only in Texas and nowhere else in the world. The Wildlife Diversity Program works to conserve this fabric for the benefit of current and future generations. Our team includes experts in botany, ornithology, herpetology and invertebrate biology that provide leadership on the conservation of rare species and areas with high conservation value across the state. Regional diversity biologists provide a local resource for landowners as well as leadership within local research,...
This project evaluates the effects of global climate change and sea level rise on estuarine intertidal habitat in the San Francisco Bay and the Pacific Flyway migratory waterbirds that rely on this habitat. Phase 2 of this project is a continuation of work to evaluate the effects of global climate change and sea level rise (SLR) on intertidal shoals in the San Francisco Bay Estuary and the migratory waterbirds that rely on this critically important resource in the Pacific Flyway. The primary objectives are to: 1) use downscaled global climate change models to translate SLR and climate scenarios into habitat quantity predictions through Delft3D and Dflow-FM (unstructured grid) geomorphic modeling; 2) model the response...
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Los otros invertebrados de América del Sur, América Central y el Caribe (other invertebrates).
This paper describes the potential applications of renewable energy sources to replace fossil fuel combustion as the prime energy sources in various countries, and discusses problems associated with biomass combustion in boiler power systems. Here, the term biomass includes organic matter produced as a result of photosynthesis as well as municipal, industrial and animal waste material. Brief summaries of the basic concepts involved in the combustion of biomass fuels are presented. Renewable energy sources (RES) supply 14% of the total world energy demand. RES are biomass, hydropower, geothermal, solar, wind and marine energies. The renewables are the primary, domestic and clean or inexhaustible energy resources....
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The IUCN Red List of Threatened Species contains assessments for just over 76,000 species, of which about two-thirds have spatial data. This spatial data provided below is for comprehensively assessed taxonomic groups. It is important to note that some species such as those listed as Data Deficient are not mapped and subspecies are mapped within the parental species. The data is available as ESRI shapefiles format and contains the known range of each species. Ranges are depicted as polygons, except for the freshwater HydroSHED tables. The shapefiles contain taxonomic information, distribution status, IUCN Red List category, sources and other details about the maps (see metadata document). Please note that the files...
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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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Los otros invertebrados de América del Sur, América Central y el Caribe (other invertebrates).
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Los otros invertebrados de América del Sur, América Central y el Caribe (other invertebrates).
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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...
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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, Software; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, 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 Development of a Decision Support Tool for Water and Resource Management using Biotic, Abiotic, and Hydrological Assessments of Topock Marsh Los Invertebrados de Costa Rica Los Invertebrados de Jamaica Los Invertebrados de Peru Los Invertebrados de Latinoamérica y el Caribe Wind and Wildlife Assessment Tool Sonoran Desert Conservation Plan MapGuide Map Natural Resource Condition Assessments Sevilleta LTER Status and Distribution of Chihuahuan Desert Grasslands in the United States and Mexico The IUCN Red List of Threatened Species (TM) IABIN -Species and Specimens Thematic Network Ecoregion-Based Conservation in the Chihuahuan Desert Biodiversidad Mexicana: Especies Texas Parks and Wildlife Department Wildlife Diversity Program Decision Support Tool for Water and Resource Management of Topock Marsh Selenium concentrations in Yuma Ridgway's Rails occupying managed and unmanaged emergent marshes at the Salton Sea Development of a Decision Support Tool for Water and Resource Management using Biotic, Abiotic, and Hydrological Assessments of Topock Marsh Decision Support Tool for Water and Resource Management of Topock Marsh Sevilleta LTER Los Invertebrados de Jamaica Sonoran Desert Conservation Plan MapGuide Map Los Invertebrados de Costa Rica Texas Parks and Wildlife Department Wildlife Diversity Program Ecoregion-Based Conservation in the Chihuahuan Desert Status and Distribution of Chihuahuan Desert Grasslands in the United States and Mexico Los Invertebrados de Peru Biodiversidad Mexicana: Especies Los Invertebrados de Latinoamérica y el Caribe IABIN -Species and Specimens Thematic Network Wind and Wildlife Assessment Tool The IUCN Red List of Threatened Species (TM) Natural Resource Condition Assessments