Southwest Biological Science Center

Data and Tools

Filter Total Items: 139
Date published: April 5, 2019

DATA RELEASE - Predictive maps of 2D and 3D surface soil properties and associated uncertainty for the Upper Colorado River Basin, USA

Raster datasets are maps of soil surface properties that were used in analyzing different approaches for digital soil mapping. They include maps of soil pH, electrical conductivity, soil organic matter, and soil summed fine and very fine sand contents that were created using 2D and 3D modeling strategies. For each property a map was created using 2D and 3D approaches to compare the mapped...

Date published: January 1, 2019

Northern spotted owl data and analysis code, Cascade Range, Pacific Northwest, USA

These data were compiled to allow examination of northern spotted owl territorial occupancy dynamics, especially with regards to the roles played by habitat and competition with barred owl in past and future dynamics. Data are estimates of parameters derived from previous modelling of northern spotted owl territorial occupancy dynamics. These data were collected as part of monitoring of...

Date published: January 1, 2019

Riparian species vegetation classification data for the Colorado River within Grand Canyon derived from 2013 airborne imagery

These data are a species-level classification map of riparian vegetation in the Colorado River riparian corridor in Grand Canyon, Arizona, USA. The classification is derived from 0.2 m pixel resolution multispectral aerial imagery acquired in May 2013. The classification spans the riparian zone of the river corridor between Glen Canyon Dam near Page, Arizona, and Lake Mead at Pearce Ferry,...

Date published: January 1, 2019

Bioeconomic model population data, Grand Canyon, Arizona, USA

These data were estimated for use in the bioecomomic model simulation of the rainbow trout population in the Colorado River in Marble Canyon. The initial rainbow trout abundance is a vector (RBT_intN) representing the population of rainbow trout within each river segment (151 mile long sergments) along the mainstem of the Colorado River from Lees Ferry to 151 river miles downstream. The...

Date published: January 1, 2019

Colorado River Mile System, Grand Canyon, Arizona

These data represent the centerline and measured increments at hundredths, tenths and whole miles, along the centerline of the Colorado River beginning at Glen Canyon Dam near Page, Arizona and terminating near the inflow s of Lake Mead in the Grand Canyon region of Arizona, USA. The centerline was digitized using Color Infra-Red (CIR) orthophotography collected in March 2000 as source...

Date published: January 1, 2019

Geomorphic Change Data for the Little Colorado River, Arizona, USA

These data include geospatial files (shapefiles and orthorectified raster images) and an input hydrograph (csv) for a 1-dimensional unsteady hydrologic model. Shapefiles consist of active channel boundarys and channel centerlines of six reaches of the LCR beginning ~4.5 km above Grand Falls, AZ, and ending ~12.8 km downstream from Cameron, AZ. These reaches are (1) the ~4.5 km above Grand...

Date published: January 1, 2019

Predictive maps of 2D and 3D surface soil properties and associated uncertainty for the Upper Colorado River Basin, USA

The raster datasets in this data release are maps of soil surface properties that were used in analyzing different approaches for digital soil mapping. They include maps of soil pH, electrical conductivity, soil organic matter, and soil summed fine and very fine sand contents that were created using both 2D and 3D modeling strategies. For each property a map was created using both 2D and 3D...

Date published: January 1, 2019

Russian-thistle field and seed bank data at Petrified Forest National Park, Arizona, 2015-2016

These data were compiled as part of a field and growth chamber study of the establishment of Salsola tragus (Russian thistle), an invasive non-native annual plant in North America. Field work was conducted at Petrified Forest National Park, Arizona in 2015 and 2016 and the growth chamber study was conducted in 2016. The data represent field measurements of Salsola germination and growth (...

Date published: December 12, 2018

Grand Canyon Map Portal

Grand Canyon Map Portal

Click to launch the Grand Canyon Map Portal hosted by the U.S. Geological Survey's Grand Canyon Monitoring and Research Center (GCMRC).  GCMRC is part of the River Ecosystem Science branch of the Southwest Biological Science Center (SBSC) and is based in Flagstaff, Arizona.

Date published: December 11, 2018

TEST Data and Tools - Tom Gushue

Grand Canyon Sandbar Monitoring

The Grand Canyon Monitoring and Research Center, in conjunction with Northern Arizona University, monitors changes to sandbars along the Colorado River downstream of Glen Canyon Dam near Page, Arizona.  Click here to launch the sandbar monitoring website and associated data applications for this on-going project.

Date published: September 14, 2018

DATA RELEASE - Spatial distribution and risk analysis data for diamond-backed terrapins relative to crab trapping, Savannah Coastal Refuge Complex, USA - Data

The data collected during the systematic inventory of diamond-backed terrapins includes information on terrapin detection in tidal creeks on refuges, crab pot numbers and locations, and a variety of environmental-, location-, and observer-related variables to examine the effects of both environmental conditions and observer bias on terrapin detection.

Date published: August 9, 2018

DATA RELEASE - Occurrence records and vegetation type data used for species distribution models in the western United States - Data

These data are species distribution information assembled for assessing the impacts of land-use barriers, facilitative interactions with other species, and loss of long-distance animal dispersal on predicted species range patterns for four common species in pinyon-juniper woodlands in the western United States.