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Southwest Biological Science Center

Welcome to the Southwest Biological Science Center! We conduct quality, objective research on the terrestrial and aquatic systems of the Colorado Plateau, Colorado River and its tributaries, drylands across the larger Southwest US, and beyond.

News

Art Illuminates the Grand Canyon: Exploring the Environmental Puzzle

Art Illuminates the Grand Canyon: Exploring the Environmental Puzzle

RAMPS Newsletter - Spring 2024

RAMPS Newsletter - Spring 2024

Biological Science Technician jobs open at the SBSC

Biological Science Technician jobs open at the SBSC

Publications

On connecting hydro-social parameters to vegetation greenness differences in an evolving groundwater-dependent ecosystem

Understanding groundwater-dependent ecosystems (i.e., areas with a relatively shallow water table that plays a major role in supporting vegetation health) is key to sustaining water resources in the western United States. Groundwater-dependent ecosystems (GDEs) in Colorado have non-pristine temporal and spatial patterns, compared to agro-ecosystems, which make it difficult to quantify how these ec
Authors
Matthew R. Lurtz, Ryan R. Morrison, Pamela L. Nagler

Effect of water delivery and irrigation for riparian restoration in the Colorado River Delta, Mexico

Along Mexico's arid Colorado River Delta, the riparian corridor lacks water due to a reduction in frequent flows, climate change, human infrastructure, and altered riparian landcover from disturbances to invasive species, fire, and high soil and water salinities, which have led to declines in riparian plant health in recent decades. Restoration efforts focusing on small plots have successfully rev
Authors
Pamela L. Nagler, Ibrahima Sall, Martha Gomez-Sapiens, Karl W. Flessa, Armando Barreto-Muñoz, Kamel Didan

Bees of the Buenos Aires National Wildlife Refuge—A preliminary report on a bee survey in a vulnerable semi-desert grassland of the Sonoran Desert

Pollinators are vital to the continued existence and seed production of about 87.5 percent of all flowering plants (Ollerton and others, 2011). In the semi-desert grasslands of Buenos Aires National Wildlife Refuge, in the Sonoran Desert of the United States, flowering forbs provide seed vital to the food base of wildlife, including the 136 species of resident and migratory birds using the Refuge’
Authors
Kathryn A. Thomas, Angela M. Hoover, M. Kathryn Busby

Science

Partners in Science

Partners in Science is a collaborative effort between Grand Canyon Monitoring and Research Center, Grand Canyon Youth, and the National Park Service to provide opportunities for youth to engage in scientific field research in Grand Canyon. This partnership connects youth from diverse backgrounds with the Nation’s natural and cultural resources on 2-3 river-based expeditions on the Colorado River...
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Partners in Science

Partners in Science is a collaborative effort between Grand Canyon Monitoring and Research Center, Grand Canyon Youth, and the National Park Service to provide opportunities for youth to engage in scientific field research in Grand Canyon. This partnership connects youth from diverse backgrounds with the Nation’s natural and cultural resources on 2-3 river-based expeditions on the Colorado River...
Learn More

Rainbow Trout in the Colorado River, Grand Canyon

Rainbow trout are a desirable sport fish that have been introduced in many locations around the world, including the Colorado River. Although introductions of rainbow trout and other nonnative fishes provide recreational fishing opportunities, they can also pose threats to native fish populations. The Glen Canyon Dam Adaptive Management Program has tasked scientists and managers with identifying...
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Rainbow Trout in the Colorado River, Grand Canyon

Rainbow trout are a desirable sport fish that have been introduced in many locations around the world, including the Colorado River. Although introductions of rainbow trout and other nonnative fishes provide recreational fishing opportunities, they can also pose threats to native fish populations. The Glen Canyon Dam Adaptive Management Program has tasked scientists and managers with identifying...
Learn More

Colorado River Basin Science

The Grand Canyon Monitoring and Research Center, a branch of the Southwest Biological Science Center, conducts scientific assessments of the Colorado River in Grand Canyon, focused primarily on Lake Powell and the river ecosystem downstream of Glen Canyon Dam. On this page, we'd like to share related interactive tools and projects by other USGS Centers that cover science across the upper and lower...
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Colorado River Basin Science

The Grand Canyon Monitoring and Research Center, a branch of the Southwest Biological Science Center, conducts scientific assessments of the Colorado River in Grand Canyon, focused primarily on Lake Powell and the river ecosystem downstream of Glen Canyon Dam. On this page, we'd like to share related interactive tools and projects by other USGS Centers that cover science across the upper and lower...
Learn More

Multimedia

Desert marigold (Baileya multiradiata) blooming in a monitoring quadrat at a RestoreNet site
Desert marigold (Baileya multiradiata) blooming in a monitoring quadrat at a RestoreNet site
Desert marigold (Baileya multiradiata) blooming in a monitoring quadrat at a RestoreNet site
Claudia Dimartini holds a long camelthorn rhizomes exposed in a wash at Wupatki National Monument
Long camelthorn rhizomes exposed in a wash at Wupatki National Monument
Long camelthorn rhizomes exposed in a wash at Wupatki National Monument
Incorporating cattle into restoration treatments at a Northern Arizona RestoreNet site
Incorporating cattle into restoration treatments at a Northern Arizona RestoreNet site
Incorporating cattle into restoration treatments at a Northern Arizona RestoreNet site
RAMPS employees and partners pose in front of a cattle grazing enclosure at a RestoreNet site
RAMPS employees and partners pose in front of a cattle grazing enclosure at a RestoreNet site
RAMPS employees and partners pose in front of a cattle grazing enclosure at a RestoreNet site
Newly installed RestoreNet treatments including pits + seedballs + live topsoil and live topsoil + direct seeding
Newly installed RestoreNet treatments including pits + seedballs + live topsoil and live topsoil + direct seeding
Newly installed RestoreNet treatments including pits + seedballs + live topsoil and live topsoil + direct seeding
The cover page of a cooperator publication about modeling the impacts of Glen Canyon Dam operations on downstream resources
Modeling the impacts of Glen Canyon Dam operations on downstream Colorado River resources-cover
Modeling the impacts of Glen Canyon Dam operations on downstream Colorado River resources-cover
Bike-produced seedballs laying on a tray to try before field implementation
Bike-produced seedballs before field implementation
Bike-produced seedballs before field implementation
Three people gather around a glowing tablet along the Colorado River in Grand Canyon
Recording bat activity along the Colorado River in Grand Canyon
Recording bat activity along the Colorado River in Grand Canyon
RAMPS Biologist rides a bike designed to create seedballs (mixes of seed, clay, and other materials) for restoration
RAMPS Biologist rides a seedball bike to make seedballs for RestoreNet restoration
RAMPS Biologist rides a seedball bike to make seedballs for RestoreNet restoration