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Showing 2,167 results for monitoring ...
- Type: Article
As the San Francisco Bay Area Network coho and steelhead monitoring crew wraps up the 2024-2025 spawner season, we are looking back at one of the busiest winters since the beginning of this monitoring program! We observed increased coho spawning in all three creeks we monitor—Olema, Pine Gulch, and Redwood Creeks. Olema took the cake with the strongest cohort of all.
- Type: Article
This elephant seal breeding season, the single-day cow count peaked at 1,159 on 1/27, which is similar to last year’s peak count of 1,165. Pup counts were higher than the five-year average this season. This is likely due to the lack of strong storms this winter and thus high pup survival.
Cuyahoga Valley National Park
Restoring Butterfly Habitat at Terra Vista
- Type: Article
Citizen scientists monitoring butterflies at the Terra Vista Natural Study Area provide important data for the habitat restoration team.
- Type: Article
From underground mycorrhizal networks to ultrasonic sound emissions and chemical signaling through the air. The plants and trees of the forest have a language and ability to communicate that science is only beginning to understand.
- Type: Article
Along Idaho’s U.S. Highway 26, National Park Service ecologists are enhancing the efficiency of sagebrush restoration and teaming up with a long-time partner of mankind: the mule.
- Type: Article
Motorized access to Yellowstone National Park during the winter season has been historically contentious, with continual concerns regarding potentially affected resources, including air quality. The culmination of the air quality monitoring aimed at understanding the impacts of OSVs in Yellowstone National Park provides an excellent example of how balancing policy and public interests can result in positive environmental impacts. NPS, Intermountain Park Science, 2025.
- Type: Article
Working within the structure of the One Tamalpais Collaborative, the Golden Gate National Parks Conservancy received $400,000 in funding through the California Wildlife Conservation Board’s pollinator rescue program to invest in protection of monarch butterflies in Marin County.
- Type: Article
In early October, biologists with the San Francisco Bay Area Network Coho & Steelhead Monitoring Program assisted the California Department of Fish & Wildlife in collecting 40 juvenile coho salmon from Olema Creek. Now, these fish are living in the Don Clausen Fish Hatchery located at Lake Sonoma in Sonoma County.
- Type: Article
Since the early 2000s, ecologists who monitor rocky intertidal ecosystems each year have noted declines in a key intertidal seaweed commonly called rockweed. Rockweed is considered a foundational species, meaning that its presence is so important that without it the entire ecosystem would change radically. At Channel Islands National Park, marine ecologists are working with local scientists to understand the best methods to restore rockweed.
- Type: Article
Estimates of visitor use levels are important for informing park management decisions. The spatial and temporal extent and resolution of visitor use estimates can limit how they can be incorporated into management decisions, research, or paired with ecological data. This article recommends how visitor use monitoring can be approached more systematically and then used in parkwide predictive models of visitor use. NPS Intermountain Park Science, 2025
- Type: Article
Northern Colorado Plateau Network’s scientists use satellite observations of vegetation condition in Curecanti National Recreation Area with climate data over time to reveal how climate influences plant production and phenology. Knowing which of the wide range of 16 vegetation assemblages found in Curecanti are more or less sensitive to climate change can help managers understand what to expect over the next few decades, and plan for the changes coming their way.
- Type: Article
The Inventory and Monitoring Division explored the effects of the Cameron Peak and East Troublesome Fires on trout, their habitat, and their food sources in Rocky Mountain National Park. The results show that high-elevation trout are resilient, providing valuable insight for park managers making conservation decisions.
- Type: Article
War in the Pacific National Historical Park is working to protect Guam’s biodiversity by managing invasive species like brown tree snakes and little fire ants while safeguarding native wildlife, including the endangered Guam tree snail. A recent study assessed the park’s Guam tree snail population, providing essential data to inform conservation efforts aimed at restoring the island’s fragile ecosystem.
- Type: Article
Fort Necessity National Battlefield park staff aimed to find out if Appalachian cottontail inhabited the park, so they collaborated with the Inventory and Monitoring Division to survey for their scat.
- Type: Article
Only 16 cows and 14 nursing pups remain at the Seashore! There are still 112 males scattered around, looking for their last chance to mate. This year’s weaned pup counts are higher than average. A total of 1063 weanlings were counted on 3/6.
- Type: Article
Two-year summary of findings from amphibian monitoring in Naval Live Oaks Area of Gulf Islands National Seashore, near Pensacola, Florida. Treefrogs and other amphibians are monitored at two sites near freshwater ponds using PVC pipes and plywood coverboards. Amphibian community composition and changes in the relative abundance of common species are tracked over time as indicators of park ecological health.
- Type: Article
The Columbia Sensitive Resource Zone in Cuyahoga Valley National Park is a case study in trying to find a sustainable balance between resource conservation and recreation. Learn more about the sensitive resource zone and how park visitors can engage in shared stewardship.
- Type: Article
When the howling started in predawn darkness, natural sound recordist Jacob Job signaled to his research assistant to stop. Wolves. Cold and crouched in snow in the remote backcountry of the park with microphones and recording gear to the ready, the Colorado State University (CSU) scientists waited and listened. Silence. Then … the stealthy sound of crunching footsteps approaching.
- Type: Article
Existing tools to identify and protect areas where the climate is changing more slowly may help preserve resources into an uncertain future.
- Type: Article
A winning strategy to combat invasive plants becomes a potent tool for restoring special places in several eastern parks.