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Showing 806 results for IM ...
- 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.
- 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
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.
Mary McLeod Bethune Council House National Historic Site
Unita Zelma Blackwell (1933-2019)
- Type: Person
Born to sharecroppers in the Mississippi Delta, Blackwell rose from humble beginnings to become one of many unsung Black female heroines of the modern Civil Rights Movement. Blackwell was an outspoken critic of racial and economic inequality and the first Black female mayor elected in the state of Mississippi. We honor her as an ancestor for reminding us of the power to change the circumstances we were born into.
- 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
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.
- Type: Article
Bats are amazing animals and a formidable force against insect pests, but a nasty fungal disease is killing them. A coordinated national response brings hope.
- Type: Article
The Inventory and Monitoring Division funded a project to study wetland habitats in Dinosaur National Monument, exploring their locations, conditions, and ecological roles. Data from this project will inform park management decisions and future updates to water rights.
- Type: Article
Researchers undertook a major effort to document plant communities in Death Valley National Park, producing its most detailed vegetation map to date. This map enhances understanding of the landscape and aids conservation efforts.
- Type: Article
Read the abstract and get the link to an article published in Environmental Research Letters that connects vegetation shift to warming Arctic and Boreal soils under vegetation. Kropp, H., M. M. Loranty, S. M. Natali, A. L. Kholodov, A. V. Rocha, … J. A. O’Donnell … et al. 2020. Shallow soils are warmer under trees and tall shrubs across Arctic and Boreal ecosystems. Environmental Research Letters.
- Type: Article
Read the abstract and link to a paper that describes increasing temperatures and their effects on permafrost in northern parks: Swanson, D. K., P. J. Sousanes, and K. Hill. 2021. Increased mean annual temperatures in 2014-2019 indicate permafrost thaw in Alaskan national parks. Arctic, Antarctic, and Alpine Research 53(1): 1-19.
- Type: Article
Rivers, such as the Colorado and Green River, are vital, but limited, resources in the semiarid and arid intermountain west. The Upper Colorado River Basin is the principal water supply of the western United States and supports habitat for a variety of flora and fauna. For nearly a century, managers have been striving to balance water use needs and ecosystem health. Learn how dams and managed flow variability have affected riparian corridors in Canyonlands National Park.