Filters: Tags: Biological Invasions (X) > Categories: Data (X)

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Species distribution model of the invasive annual forb Erodium cicutarium (red-stemmed filaree) in the Mojave Desert Geotiff raster of habitat suitability for the invasive annual forb Erodium cicutarium (red-stemmed filaree) across the Mojave Desert (NatureServe ecoregional boundary). Raster resolution = 30 m, projection = UTM Zone 11N Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Biological invasions, Bromus rubens, Bromus tectorum, Co-occurrence, Erodium cicutarium, All tags... Grass-fire cycle, Invasive species, Mojave Desert, Mojave Desert, Schismus spp, Species distribution models, biota, desert ecosystems, disturbance, ecosystems, field methods, fire, fire frequency, fires, geographic information systems, habitat alteration, imageryBaseMapsEarthCover, invasive species, plants (organisms), remote sensing, vegetation, Fewer tags Cover of Woody and Herbaceous Functional Groups in Burned and Unburned Plots, Mojave Desert, 2009-2013 Arid ecosystems are often vulnerable to transformation to invasive-dominated states following fire, but data on persistence of these states are sparse. The grass/fire cycle is a feedback process between invasive annual grasses and fire frequency that often leads to the formation of alternative vegetation states dominated by the invasive grasses. However, other components of fire regimes, such as burn severity, also have the potential to produce long-term vegetation transformations. Our goal was to evaluate the influence of both fire frequency and burn severity on the transformation of woody-dominated communities to communities dominated by invasive grasses in major elevation zones of the Mojave Desert of western... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Mojave desert, USGS Science Data Catalog (SDC), biological invasions, chronosequence, community structure, All tags... deserts, disturbance, ecological processes, ecosystems, fire regimes, fires, habitat alteration, invasive species, plants, resilience, resistance, secondary succession, Fewer tags Osmoregulatory capacity and muscle water control facing salinity stress of the Amazon fish Astronotus ocellatus (Cichlidae) Scientific tools such as physiological analysis are fundamental to understand invasive species tolerances and responses to different environmental conditions. The Amazon fish Astronotus ocellatus, popularly known as oscar, was introduced worldwide and became invasive in many places. Specimens of A. ocellatus were abruptly submitted to salt stress of 14 and 20 ppt, for 3 and 8 hours to analyze its plasma osmolality and muscle wet weight change. Fish in 14 ppt presented no osmolality distress even after 8 hours. In 20 ppt a slight increase (about 10%) in plasma osmolality was observed for both times of exposure. Fish muscle slices submitted to hyper-osmotic saline displayed decreased weight after 75 minutes, and slices... Categories: Data; Types: Citation; Tags: Gainesville, Alachua County, Florida, USGS Science Data Catalog (SDC), biological invasions, physiology Species distribution model of the invasive annual grass Schismus spp (Mediterranean split grass) in the Mojave Desert Geotiff raster of habitat suitability for the invasive annual grass Schismus spp (Mediterranean split grass) across the Mojave Desert (NatureServe ecoregional boundary). Raster resolution = 30 m, projection = UTM Zone 11N Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Biological invasions, Bromus rubens, Bromus tectorum, Co-occurrence, Erodium cicutarium, All tags... Grass-fire cycle, Invasive species, Mojave Desert, Mojave Desert, Schismus spp, Species distribution models, biota, desert ecosystems, disturbance, ecosystems, field methods, fire, fire frequency, fires, geographic information systems, habitat alteration, imageryBaseMapsEarthCover, invasive species, plants (organisms), remote sensing, vegetation, Fewer tags Species distribution model of the invasive annual grass Bromus rubens (red brome) in the Mojave Desert Geotiff raster of habitat suitability for the invasive annual grass Bromus rubens (red brome) across the Mojave Desert (NatureServe ecoregional boundary). Raster resolution = 30 m, projection = UTM Zone 11N Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Biological invasions, Bromus rubens, Bromus tectorum, Co-occurrence, Erodium cicutarium, All tags... Grass-fire cycle, Invasive species, Mojave Desert, Mojave Desert, Schismus spp, Species distribution models, biota, desert ecosystems, disturbance, ecosystems, field methods, fire, fire frequency, fires, geographic information systems, habitat alteration, imageryBaseMapsEarthCover, invasive species, plants (organisms), remote sensing, vegetation, Fewer tags Species distribution model of the invasive annual grass Bromus tectorum (cheatgrass) in the Mojave Desert Geotiff raster of habitat suitability for the invasive annual grass Bromus tectorum (cheatgrass) across the Mojave Desert (NatureServe ecoregional boundary). Raster resolution = 30 m, projection = UTM Zone 11N Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Biological invasions, Bromus rubens, Bromus tectorum, Co-occurrence, Erodium cicutarium, All tags... Grass-fire cycle, Invasive species, Mojave Desert, Mojave Desert, SageDAT-data, Schismus spp, Species distribution models, biota, desert ecosystems, disturbance, ecosystems, field methods, fire, fire frequency, fires, geographic information systems, habitat alteration, imageryBaseMapsEarthCover, invasive species, plants (organisms), remote sensing, vegetation, Fewer tags