Southwest Biological Science Center

Filter Total Items: 19
Soil profile in dryland region. The top of the horizon is a light brown and the bottom half of the horizon is darker in color.
May 24, 2017

DATA RELEASE - Automated Reference Toolset (ART)

These environmental raster covariate, geospatial vector data, and tabular data were compiled as input data for the Automated Reference Toolset (ART) algorithm. These data are a subset of all the environmental raster covariate data used in the ART algorithm.

Close-up of prickly pear flower that is fully open.
May 24, 2017

DATA RELEASE - Full Annual Cycle Bioenergetics Model of Migration Applied to Galapagos Tortoises

Data on ambient-shade temperature, Normalized Difference Vegetation Index (NDVI) between February 1, 2010 and January 31, 2011 used for input onto a bioenergetics-based movement model for Galapagos turtles.

Looking down on the Colorado River in Grand Canyon. A submerged sandbar is adjacent to a sandy beach.
May 24, 2017

DATA RELEASE - Geomorphic Process from Topographic Form

These data were used for the development and validation of the automated workflow for mechanistic segregation of geomorphic transport mechanisms presented in the manuscript "Geomorphic Process from Topographic Form: Automating the Interpretation of Repeat Survey Data in River Valleys."

Close-up of cane bluestem grass seed head on the bank of the Colorado River in Grand Canyon.
May 24, 2017

DATA RELEASE - Plant Functional Traits, Colorado River, Grand Canyon, 2012-2014

Data were compiled or measured (depending on the trait) for 110 plant species which were documented in vegetation monitoring surveys in years 2012-2014 along the Colorado River through Grand Canyon National Park. New trait data were collected for specific leaf area, stem specific gravity, δ13C, δ15N, percent carbon and nitrogen, and carbon:nitrogen ratio.

Array of three single-frequency side-looking acoustic-Doppler profilers used to measure suspended-sediment concentration
March 24, 2017

DATA RELEASE - Channel Mapping of the Colorado River in Grand Canyon National Park, Arizona - May 2009, river miles 29 to 62

Bathymetric, topographic, and grain-size data were collected in May 2009 along a 33-mi reach of the Colorado River in Grand Canyon National Park, Arizona. Channel bathymetry was mapped using multibeam and singlebeam echosounders, subaerial topography was mapped using ground-based total-stations, and bed-sediment grain-size data were collected using an underwater digital microscope system.

Grasses and woody plants growing along river with walls on Grand Canyon visible to one side.
March 22, 2017

DATA RELEASE - Southwestern Riparian Plant Trait Matrix, Colorado River, Grand Canyon, Arizona, 2014 - 2016

This dataset contains information on the physical traits and environmental tolerances of plant species occurring along the lower Colorado River through Grand Canyon. Data for the matrix were compiled from published scientific papers, unpublished reports, plant fact sheets, existing trait databases, regional floras, and plant guides.

Brown, sediment-laden water of the Paria River mixes with the clear water of the Colorado River
January 31, 2017

Discharge, Sediment, and Water Quality Monitoring Application

This link launches the Grand Canyon Monitoring and Research Center’s discharge, sediment and water quality monitoring application gateway.  Sediment and water quality information can be accessed from here for our on-going monitoring taking place across the Southwest U.S.

Sandbar on the bank of the Colorado River in Grand Canyon
January 30, 2017

Grand Canyon Sandbar Monitoring

Several applications related to the Grand Canyon Monitoring and Research Center’s long-term sandbar monitoring project can be accessed here, including the sandbar area and volume tool and applications highlighting changes to sandbars as a result of High-Flow Events (HFEs) conducted by Glen Canyon Dam near Page, Arizona.

Several people on a raft going through muddy rapids.
January 23, 2017

Grand Canyon Citizen Science Story Map

This story map application provides an interactive map showing light trap locations along the Colorado River as well as other content further describing this Citizen Science initiative. Data are currently available for the years 2012 through 2014, with more recent efforts coming soon.

Small, green adult fly on the Colorado River, Grand Canyon.
January 19, 2017

Grand Canyon Aquatic Ecology Web Application

This application allows for the exploration of a select set of insect emergence data collected as part of a citizen science project initiated by the Grand Canyon Monitoring and Research Center (GCMRC).  Data present in this application relate to a recent BioScience publication from USGS scientists and collaborators that investigated the effects of dam operations on downstream aquatic insects.

Woody plant species growing on a sand dune along the Colorado River in Grand Canyon.
January 3, 2017

DATA RELEASE - Community-level riparian plant traits, Colorado River, Grand Canyon, 2013-2015

Data were compiled based on field observations and available literature. Field data were collected on sandbars along the Colorado River through Grand Canyon between river miles 0 and 226 and included plant cover and trait measurements. Plant height and photosynthetic pathway were gleaned from the literature. Trait values were converted to a community-level value.

Close-up of prickly pear flower that is fully open.
January 2, 2017

DATA RELEASE - Population Attributes Red Eared Slider Japan

These data are compiled from published studies of various subspecies of the slider turtle (Trachemys scripta) from throughout the native range of the species in the United States. Data include sample sizes of adult male and female turtles as well as various estimates of their body size.