Filters: partyWithName: Ecosystems (X) > partyWithName: John B Bradford (X)

Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Contacts U.S. Geological Survey - ScienceBase Southwest Biological Science Center U.S. Geological Survey Caitlin M Andrews Daniel R Schlaepfer More... Categories Data (3) Data Release - Provisional (1) Data Release - Revised (1) Tag Types Theme (12) Place (12) USGS Scientific Topic Keyword (12) Harvest Set (12) Drought, Fire and Extreme Weather (1) Organization (1) Science Themes (1) Tag Schemes None (12) Geographic Names Information System (GNIS) (11) USGS Thesaurus (11) USGS Biocomplexity Thesaurus (6) ISO 19115 Topic Categories (9) Getty Thesaurus of Geographic Names (1) ISO 19115 Topic Category (2) More... View Results as: JSON ATOM CSV

Ecological Drought for Sagebrush Seedings in the Great Basin Monthly Standardize Precipitation Evapotranspiration Index (SPEI), Daily soil-water potential (MPa) and soil temperature (degree C) data for plots from SageSuccess. The SageSuccess Project is a joint effort between USGS, BLM, and FWS to understand how to establish big sagebrush and ultimately restore functioning sagebrush ecosystems. Improving the success of land management treatments to restore sagebrush-steppe is important for reducing the long-term impacts of rangeland fire on sage-grouse and over 350 other wildlife species that use these habitats. Categories: Data; Tags: Botany, Climatology, Ecology, Great Basin, Land Use Change, All tags... USGS Science Data Catalog (SDC), biota, droughts, ecological drought, fire, sagebrush, water deficit, Fewer tags Robust ecological drought projection data for drylands in the 21st century These data represent simulated ecological drought conditions for current climate, and for future climate represented by all available climate models at two time periods during the 21st century. These data were used to: 1) describe geographic patterns in ecological drought under historical climate conditions, 2) quantify the direction and magnitude of change in ecological drought, 3) identify areas and ecological drought metrics with projected changes that are robust across climate models, defined as drought metrics and locations where >90% of climate models agree in the direction of change. Tags: Alberta, Arizona, British Columbia, California, Canada, All tags... Climatology, Colorado, Ecology, Geography, Idaho, Information Sciences, Kansas, Manitoba, Minnesota, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oklahoma, Oregon, Saskatchewan, Soil Sciences, South Dakota, Texas, USGS Science Data Catalog (SDC), United States, Utah, Washington, Wyoming, air temperature, biota, climate, climate change, climate conditions, climate impacts, climatologyMeteorologyAtmosphere, drought conditions, drought metrics, drought stress, droughts, dryland ecosystems, dryland vegetation, ecological drought, effects of climate change, future climate, future conditions, high temperature, historical conditions (1980-2010), plants, seasonal droughts, soil moisture, vegetation, Fewer tags Historical and future ecological drought conditions for rangelands of the western U.S. These NetCDF data were compiled to investigate how rangelands in the western U.S. are limited by access to water. As a result, these ecosystems may be especially vulnerable to changes in water availability and drought as a result of climate change. This project utilized an ecosystem water balance model to quantify spatial and temporal patterns of rangeland ecological drought conditions under historical and future climate conditions. Water balance results were used to estimate several metrics that describe the seasonal timing and amount of moisture available for plant utilization in western rangelands. These data represent different aspects of water availability and drought. They are based on 1/16-degree gridded... Tags: 10-km resolution, Arizona, Botany, California, Climatology, All tags... Colorado, Ecology, Geography, Idaho, Information Sciences, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oregon, Soil Sciences, South Dakota, Texas, USGS Science Data Catalog (SDC), Utah, Washington, Wyoming, atmospheric and climatic processes, biota, climate change, ecological processes, ecosystems, effects of climate change, future projected climate, geoscientificInformation, process-based model, recent climate, regeneration, regression-based model, restoration, soil moisture, terrestrial ecosystems, western United States, Fewer tags Estimated tree mortality, basal area, climate, and drought conditions for ponderosa pine in forest inventory plots across the western U.S. These data consist of environmental covariates and estimated plot-level mortality of ponderosa pine trees. Environmental covariates include growing season temperature and soil moisture, and values are summarized into long-term mean conditions, and anomalies observed between forest inventory sampling events for each plot. Data also include plot locations (with uncertainty introduced by the US Forest Service to maintain private property rights), plot basal area, and several variables related to estimated mortality rate of ponderosa pine trees under various assumptions about basal area conditions. Categories: Data; Tags: Arizona, Botany, California, Climatology, Colorado, All tags... Ecology, Forestry, Geography, Idaho, Information Sciences, Montana, Nevada, New Mexico, Oregon, USGS Science Data Catalog (SDC), Utah, Washington, air temperature, basal area, basal area conditions, biota, climate change, droughts, environmental changes, environmental covariates, estimated mortality rate, estimated plot-level mortality, field sampling, forest ecosystems, forest inventory, forest inventory plot, forest inventory sampling events, forest management, forest sampling, forestry, forests, growing season soil moisture, growing season temperature, long-term ecological monitoring, long-term mean conditions, mortality, pine forests, plot basal area, plot locations, plot sampling, ponderosa pine forest, ponderosa pine trees, sampling, soil moisture, tree mortality, vegetation, western United States, Fewer tags High-resolution maps of historical and 21st century ecological drought metrics using multivariate matching algorithms for drylands of western U.S. and Canada These data were compiled using a new multivariate matching algorithm that transfers simulated soil moisture conditions (Bradford et al. 2020) from an original 10-km resolution to a 30-arcsec spatial resolution. Also, these data are a supplement to a previously published journal article (Bradford et al., 2020) and USGS data release (Bradford and Schlaepfer, 2020). The objectives of our study were to (1) characterize geographic patterns in ecological drought under historical climate, (2) quantify the direction and magnitude of projected responses in ecological drought under climate change, (3) identify areas and drought metrics with projected changes that are robust across climate models for a representative set of... Tags: 30-arcsecond, Alberta, Arizona, Botany, British Columbia, All tags... CMIP5, California, Canada, Climatology, Colorado, Ecology, Geography, Idaho, Iowa, Kansas, Manitoba, Minnesota, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oklahoma, Oregon, RCP4.5, RCP8.5, SOILWAT2, Saskatchewan, Texas, USGS Science Data Catalog (SDC), USGS:61faf644d34e622189c7ba3e, United States, Utah, Washington, Wyoming, biota, climate, climate change, climate projection, climatologyMeteorologyAtmosphere, data release, drought metrics, droughts, drylands, ecological drought, ecological model, future time periods, global circulation models, historical conditions, representative concentration pathways, sagebrush region, soil moisture, soil temperature, western North America, Fewer tags Ecosystem water balance and ecological drought patterns under historical and future climate conditions for the Four Forest Restoration Initiative (4FRI) Landscape These data were compiled for research pertaining to the effects of stand density treatments on growth rates in semi-arid, ponderosa pine forests. Also, these data examined how the planned restoration treatments in the Four Forests Restoration Initiative (4FRI), the largest forest restoration project being implemented in the United States, would alter landscape-scale patterns of forest growth and drought vulnerability throughout the 21st century. Using drought-growth relationships developed within the landscape, we considered a suite of climate and thinning scenarios and estimated both average forest growth and the proportion of years with extremely low growth as a measure of vulnerability to long-term decline. The... Tags: 21st century, 4FRI, Arizona, Climatology, Coconino National Forest, All tags... Colorado Plateau, Ecology, Flagstaff, Forestry, Four Forests Restoration Initiative, Geography, Information Sciences, Kaibab National Forest, RCP, USGS Science Data Catalog (SDC), air temperature, atmospheric and climatic processes, basal area, basal area increment, basal area reduction, biomass, biomass increment, climate, climate change, climate impacts, climatologyMeteorologyAtmosphere, density treatment, drought severity, drought vulnerability, drought-growth relationships, droughts, ecological distribution, ecological drought, ecological processes, ecological restoration, ecosystem restoration, environmental driver, environmental restoration, forest density, forest ecosystems, forest growth, forest stand, forest treatment, future time period (late), future time period (near), geography, geoscientificInformation, growth, growth rate, growth rates, growth vulnerability, historical time period, landscape, landscape, landscape structure, landscape-scale patterns, northern Arizona, pine forests, ponderosa pine forests, precipitation, precipitation (atmospheric), predicted growth, relative growth, representative concentration pathway, restoration treatments, semi-arid forests, shifting climate, soil moisture, stand density treatments, stand driver, temperature, thinning, thinning treatments, Fewer tags Climate and drought adaptation: historical and projected future exposure metrics for Southeastern Utah Group National Parks These data were compiled to evaluate the magnitude and direction of change from historical conditions in climate metrics across the Southeastern Utah Group (SEUG) of National Parks. Objective(s) of our study were to quantify the magnitude and direction of change from historical conditions in climate metrics across SEUG parks at a meaningful scale for land managers and practitioners. These data represent the historical and projected future average temperatures for two emission scenarios and 12 global circulation models. Included are the annual average temperatures and the average temperatures for each season. These data were created by sampling representative locations across each National Park unit and simulating... Tags: Arches National Park, Botany, Canyonlands National Park, Climatology, Colorado Plateau, All tags... Ecology, Forestry, Geography, Hovenweep National Monument, Information Sciences, National Monument, National Park, Natural Bridges National Monument, SOILWAT2, Soil Sciences, USGS Science Data Catalog (SDC), Utah, air temperature, atmospheric and climatic processes, atmospheric circulation, baseline conditions, biota, climate change, climate metrics, climatologyMeteorologyAtmosphere, data release, ecosystem management, effects of climate change, emission scenarios, environment, future climate conditions, geoscientificInformation, global circulation models, historical average temperatures, historical climate variables, historical conditions, land managers, mathematical modeling, mathematical simulation, modeling, natural resource management, point sampling, projected future average temperatures, projected future climate variables, representative concentration pathway 4.5, representative concentration pathway 8.5, seasons, southcentral Utah, southeast Utah, Fewer tags Ecosystem water balance and ecological drought patterns under historical and future climate conditions for the Four Forest Restoration Initiative (4FRI) Landscape (COPY) These data were compiled for research pertaining to the effects of stand density treatments on growth rates in semi-arid, ponderosa pine forests. Also, these data examined how the planned restoration treatments in the Four Forests Restoration Initiative (4FRI), the largest forest restoration project being implemented in the United States, would alter landscape-scale patterns of forest growth and drought vulnerability throughout the 21st century. Using drought-growth relationships developed within the landscape, we considered a suite of climate and thinning scenarios and estimated both average forest growth and the proportion of years with extremely low growth as a measure of vulnerability to long-term decline. The... Tags: 21st century, 4FRI, Arizona, Climatology, Coconino National Forest, All tags... Colorado Plateau, Ecology, Flagstaff, Forestry, Four Forests Restoration Initiative, Geography, Information Sciences, Kaibab National Forest, RCP, USGS Science Data Catalog (SDC), air temperature, atmospheric and climatic processes, basal area, basal area increment, basal area reduction, biomass, biomass increment, climate, climate change, climate impacts, climatologyMeteorologyAtmosphere, density treatment, drought severity, drought vulnerability, drought-growth relationships, droughts, ecological distribution, ecological drought, ecological processes, ecological restoration, ecosystem restoration, environmental driver, environmental restoration, forest density, forest ecosystems, forest growth, forest stand, forest treatment, future time period (late), future time period (near), geography, geoscientificInformation, growth, growth rate, growth rates, growth vulnerability, historical time period, landscape, landscape, landscape structure, landscape-scale patterns, northern Arizona, pine forests, ponderosa pine forests, precipitation, precipitation (atmospheric), predicted growth, relative growth, representative concentration pathway, restoration treatments, semi-arid forests, shifting climate, soil moisture, stand density treatments, stand driver, temperature, thinning, thinning treatments, Fewer tags Dataset for plant production responses to climate across water-limited regions This dataset was constructed from readily available open source climate and vegetation data, like Landsat. This dataset represents the vegetation and climate conditions for a large number of points across the major deserts of the SW USA. The dataset was constructed in order to use the climate pivot point approach (Munson et al. 2013) at the landscape level. Originally this dataset was much larger but we were looking to study a pure vegetation signal and therefore developed a detailed masking procedure to remove fire, slope, human, and floodplain effects. The vegetation classification originally came from SW regap, though we have refined / regrouped the data. The vegetation classification for each point is representative... Categories: Data; Tags: Arizona, Botany, California, Chihuahuan, Climate, All tags... Climatology, Colorado, Colorado Plateau, Drought, Drought, Fire and Extreme Weather, Ecology, Ecoregion, Geography, Great Basin, Information Sciences, Mojave, National CASC, Nevada, New Mexico, Northern Colorado Plateau, Pivot Point, ReGAP vegetation classes, SAVI, SPEI, Soil Adjusted Vegetation Index, Sonoran, Southern Colorado Plateau, Southwestern United States, Standardized Precipitation and Evapotranspiration Index, Texas, USGS Science Data Catalog (SDC), United States, Utah, Vegetation Response, Water Resources, Fewer tags Historical and 21st century soil temperature and moisture data for drylands of western U.S. and Canada These data represent simulated soil temperature and moisture conditions for current climate, and for future climate represented by all available climate models at two time periods during the 21st century. These data were used to: 1) quantify the direction and magnitude of expected changes in several measures of soil temperature and soil moisture, including the key variables used to distinguish the regimes used in the R and R categories; 2) assess how these changes will impact the geographic distribution of soil temperature and moisture regimes; and 3) explore the implications for using R and R categories for estimating future ecosystem resilience and resistance. Tags: Alberta, Arizona, British Columbia, California, Canada, All tags... Climatology, Colorado, Ecology, Geography, Idaho, Information Sciences, Kansas, Manitoba, Minnesota, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oklahoma, Oregon, Saskatchewan, Soil Sciences, South Dakota, Texas, USGS Science Data Catalog (SDC), United States, Utah, Washington, Wyoming, aridification, aridity, big sagebrush ecosystems, biota, cheatgrass, clay loam, climate, climate change, climate models, concentration pathways, drought resistance, droughts, ecological model, ecological transformation, ecosystem resilience, future time periods, historical conditions, resilience, sandy loam, silt loam, soil temperature, soil types, vulnerability, Fewer tags Stand density and climate data in the Taylor Woods study area (Fort Valley Experimental Forest) on the Colorado Plateau in Northern Arizona, 1961-2011 These data were compiled for research pertaining to the effects of stand density on growth rates in semi-arid forests. Increasing heat and aridity in coming decades is expected to negatively impact tree growth and threaten forest sustainability in dry areas. Maintaining low stand density has the potential to mitigate the negative effects of increasingly severe droughts by minimizing competitive intensity. By inspecting growth rates and the climate and soil moisture conditions that drive these growth rates we can understand better the positive effects of reducing stand density and the specific dynamics that are beneficial to growth. Tags: Arizona, Coconino County, Ecology, Flagstaff, Forestry, All tags... Fort Valley Experimental Forest, Geography, Information Sciences, Soil Sciences, Taylor Woods, USGS Science Data Catalog (SDC), biota, climate adaptation, climate change, coniferous forests, dendrochronology, drought stress, droughts, droughts, ecosystem monitoring, forest density, forest ecosystems, growth rates, semi-arid forests, soil moisture, soil moisture, vegetation, Fewer tags Bioclimatic suitability for 11 dominant Colorado Plateau perennial grass species (ver. 2.0, November 2022) These data were compiled to represent the distribution of environmental conditions with recognized importance to perennial grasses in dryland areas of the western U.S. Objective(s) of our study were to … evaluate how those environmental drivers are related to perennial grass distributions and use the results to assess how perennial grass distributions may shift in response to future climate change. These data represent ecological niche models for 11 perennial grass species that are important components of grasslands on the Colorado Plateau. Data are provided as rasters (tif format) with each containing data about future change in climatic suitability for a give species, future time period, representative concentration... Categories: Data Release - Provisional, Data Release - Revised; Tags: 30-arcsecond, Arizona, Botany, C3, C4, All tags... California, Climatology, Colorado, Ecology, Geography, Idaho, Information Sciences, Kansas, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oklahoma, Oregon, RCP4.5, RCP8.5, Soil Sciences, Texas, USGS Science Data Catalog (SDC), Utah, Washington, Wyoming, biota, climate, climate change, climate models, climate projection, climatologyMeteorologyAtmosphere, data release, drought metrics, drylands, edaphic suitability, effects of climate change, future time periods, global circulation models, grasslands, historical conditions, modeling, perennial grass, representative concentration pathways, soil sciences, western United States, Fewer tags