River, Stream, & Wetland Projects

Sonoran Desert Network scientists monitor key resources and weather at Tonto National Monument by taking measurements throughout the year, which helps us track changes over time. This report summarizes weather and springs data from Water Year 2022. The data describe a dramatic change to Cave Canyon Spring. WY2022 was the third consecutive year of drought, and the park received less than average precipitation in all but three months.

Sonoran Desert Network scientists monitor key resources and weather at Gila Cliff Dwellings National Monument by taking measurements throughout the year to understand changes over time. This report summarizes analyses of weather and springs data from Water Year 2022. The data indicate the park had a noteworthy heavy monsoon season, and the two monitored springs continue to be wet year-round. Air temperatures were similar to previous averages.

Sonoran Desert Network scientists monitor climate and water at Tuzigoot National Monument by taking measurements throughout the year. This report summarizes climate and springs data from Water Year 2022. Monitoring these key natural resources at the park helps us detect changes over time. The data indicate the park had a relatively dry year, though the spring was wet for all 173 days monitored. Maximum temperatures were warmer than previous averages.

The American bullfrog is a great threat to aquatic ecosystems in the Southwest. They are voracious predators of aquatic animals and carry diseases that kill native species. We will implement three main actions in this project funded by the Inflation Reduction Act, Invasive Species Grant: bullfrog control, native species recovery and reintroduction, and development of early detection/rapid response protocols for bullfrogs.

This report summarizes the Sonoran Desert Network’s analyses of weather, groundwater, and springs data from Water Year 2022 in Chiricahua National Monument. Monitoring these important natural resources at the park helps us understand changes over time. The data indicate the park had a heavy monsoon season and is not in drought, though most months had far below average precipitation. The groundwater was higher than in WY2021, though surface water springs show signs of drying.

At nine southwestern parks, Sonoran Desert Network staff are performing environmental DNA (eDNA) sampling. By analyzing the genomes present in a water sample, eDNA sampling allows us to learn which species use a given area without the use of capture, hair snares, or cameras. The results of this inventory will help NPS staff to prioritize springs for monitoring and conservation.

At Montezuma Castle National Monument, the precontact built environment reflects the importance of reliable water sources. At this parks, the Sonoran Desert Network monitors climate, groundwater, and springs. Understanding changes in these closely linked factors helps managers make informed decisions affecting both natural and cultural resources. Learn about our findings for water year 2022.

At Coronado National Memorial, desert plants, wildlife, and visitors all depend on reliable water sources. The Sonoran Desert Network monitors climate, groundwater, and springs at the memorial. Understanding changes in these closely linked factors helps managers make informed decisions affecting natural resources. Learn about our recent findings.

Climate and water dramatically shape ecosystems, especially in arid and semi-arid places like Amistad National Recreation Area (NRA) in Texas. The reservoir at the park receives drainage from water basins in the U.S. and Mexico, including the Pecos and Devils rivers and the Rio Grande. The park supports a wide variety of plants and animals because it is in a transition zone between major life and climate zones. We monitor climate and water to assess park ecosystems.

Across the Intermountain Region, Inventory & Monitoring Division ecologists are helping to track the effects of climate change, provide baseline information for resource management, evaluate new technologies, and inspire the next generation of park stewards. This article highlights accomplishments achieved during fiscal year 2021.