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Welcome to Region 6
The Mountain-Prairie Region consists of 8 states in the heart of the American west including Colorado, Kansas, Montana, Nebraska, North Dakota, South Dakota, Utah and Wyoming.
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Science
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Science
The U.S. Fish and Wildlife Service has a long tradition of scientific excellence and always uses the best-available science to inform its work to conserve fish, wildlife, plants, and their habitat for the benefit of the American public.
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National Wildlife Refuges
Where Wildlife Comes First
Created in 1903 by President Theodore Roosevelt, today's National Wildlife Refuge System protects habitats and wildlife across the country, from the Alaskan tundra to subtropical wetlands. Managed by the U.S. Fish and Wildlife Service, the Refuge System's 560-plus refuges cover more than 150 million acres and protect nearly 1,400 species of birds, mammals, reptiles, amphibians, and fish.
While national wildlife refuges were created to protect wildlife, they are for people too. Refuges are ideal places for people of all ages to explore and connect with the natural world. We invite you to learn more about and visit the national wildlife refuges and wetland management districts in Colorado, Kansas, Montana, Nebraska, North Dakota, South Dakota, Utah, and Wyoming.
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Ecological Services
The Mountain-Prairie Region's Office of Ecological Services (ES) works to restore and protect healthy populations of fish, wildlife, and plants and the environments upon which they depend. Using the best available science, ES personnel work with Federal, State, Tribal, local, and non-profit stakeholders, as well as private land owners, to avoid, minimize, and mitigate threats to our Nation's natural resources.
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Migratory Birds
Providing leadership in the conservation of migratory bird habitat through partnerships, grants, and outreach for present and future generations. The Migratory Bird Program is responsible for maintaining healthy migratory bird populations for the benefit of the American people.
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Fish and Aquatic Conservation
The U.S. Fish & Wildlife Service Fish and Aquatic Conservation Program in the Mountain-Prairie Region helps conserve, protect, and enhance aquatic resources and provides economically valuable recreational fishing to anglers across the country. The program comprises 12 National Fish Hatcheries.
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Law Enforcement
Law enforcement is essential to virtually every aspect of wildlife conservation. The Office of Law Enforcement contributes to Service efforts to manage ecosystems, save endangered species, conserve migratory birds, preserve wildlife habitat, restore fisheries, combat invasive species, and promote international wildlife conservation.
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External Affairs
External Affairs staff in the Mountain-Prairie Region of the U.S. Fish and Wildlife Service provides support to the regional office and field stations to communicate and faciliate information about the Service's programs to the public, media, Congress, Tribes, partners, and other stakeholders in the 8-state region.
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Western glacier stonefly
Resources: Candidate Conservation Agreements | Consultation | Habitat Conservation Plans | Permits | Safe Harbor Agreements | Species List
Jump to a section: Recent actions & links | « Back to invertebrates
Western glacier stonefly (Zapada glacier)
The western glacier stonefly (Zapada glacier) is a species of insect in the taxonomic order Plecoptera, also known as the stonefly order. Adults are dark-colored and have a body length and wing length ranging from 0.2 to 0.4 inches. The females are almost twice the size of males. The immature stage (nymph) of the western glacier stonefly has not been described.
The western glacier stonefly has only been found in or near five streams on the east side of the Continental Divide in Glacier National Park in northern Montana. All but one of the western glacier stonefly specimens were collected between 1963 and 1969.
We do not know how many western glacier stoneflies exist or if the species is still extant. No specimens have been reported since 1979. In the past the species appears to have been quite rare. Only 25 specimens have been collected in total with only 1 to 4 individuals collected at any one survey location.
There is little information available regarding the life history of the western glacier stonefly. In general, stoneflies are typically found in clean, cold running waters that have high oxygen content. Therefore, they are sensitive to temperature and chemical changes in their environments. Their presence can be an indication of a healthy stream ecosystem.
