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Mist forestfly Lednia tumana
ESA status: candidate for listing
Glacier National Park in Montana is home to an array of majestic wildlife, including elk, bald eagles, mountain lions, wolves, and the largest population of grizzly bears in the lower 48. But we’re shining the spotlight on another creature, humble in size, but large in significance. We’re going to go up to a high-elevation glacial meltwater stream to look for a diminutive insect you will not find anywhere else on earth – the mist forestfly, otherwise known as the meltwater lednian stonefly.
This small invertebrate’s life is intimately tied to the health of the awe-inspiring glaciers and alpine vistas that make up its habitat. Glaciers are extremely sensitive to climate change, as they are directly impacted by altered temperature, precipitation, and cloud cover. The mist forestfly is like a tiny finger placed on the pulse of the alpine environment, and its status is one of our best terrestrial indicators of the effects of climate change.
This stonefly only occurs in glacier-fed streams and alpine springs in Glacier National Park. If Glacier National Park loses its glaciers, as scientists predict will come to pass by 2030, then that could be the end of the mist forestfly and also a tragic loss for the park named for its incredible glacial landscape. WildEarth Guardians intends to fight for protection for the mist forestfly under the Endangered Species Act, not only for its own sake, but in order to push the U.S. and other nations to take immediate, bold action to address the climate crisis and save the crown jewels of our natural world, including Glacier National Park.
- Significant Actions
- July 2007 - WildEarth Guardians files a petition for 206 Mountain-Prairie species, including the mist forestfly
- March 2008 - WildEarth Guardians files suit to compel overdue preliminary finding on petition to list the mist forestfly
- August 2009 - U.S. Fish and Wildlife Service issues a positive preliminary finding on petition to list the mist forestfly
- December 2009 - WildEarth Guardians files suit to compel overdue listing determination for the mist forestfly
- April 2011 - U.S. Fish and Wildlife Service finds the mist forestfly “warranted but precluded” for listing, placing it on the ESA candidate list
- Press Releases
- July 24, 2007 - “Group Seeks Federal Protection for 206 Western Endangered Species”
- March 24, 2008 - "WildEarth Guardians Seeks Federal Protection for 681 Western Species"
- August 18, 2009 - “Feds Agree to Consider 29 Species for Endangered Species Act Protection”
- December 28, 2009 - "Conservation Group Celebrates Year of Biodiversity With BioBlitz"
- April 1, 2010 - "U.S. Fish and Wildlife Service Denies Extinction Crisis"
- April 5, 2011 - "Glaciers & Extinction: Ultimate Climate Change Victim Latest ESA Candidate"
- Species Factsheet
- Related Campaigns