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Pawnee montane skipper monitoring study for the Upper South Platte Watershed Protection and Restoration project, August 2017




Sovell, John, author
Colorado Natural Heritage Program, publisher

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In 2000, the U.S. Forest Service (USFS), in cooperation with the Colorado State Forest Service, Denver Water, and other entities, implemented a program of forest thinning treatments to reduce the risk of large fires that could occur where surface fuels have accumulated and dense forest stands have resulted from past fire management activities. To assist in evaluating project effects over the short- and long-term, the USFS and Denver Water sponsored a pilot Hesperia skipper monitoring program for the federally threatened Pawnee montane skipper (PMS) (Hesperia leonardus montana), to evaluate the relative use by skippers of treated and untreated areas. Annual monitoring began in August 2000; this report discusses results of the most recent years monitoring in relation to all previous years.


Prepared for: U. S. Forest Service, Pike and San Isabel national forests, and Comanche and Cimarron national grasslands, South Platte Ranger District.
May 2018.
February 2018.
Includes bibliographical references.

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Hesperia leonardus montana
Pawnee montane skipper
lower montane forest
butterfly use
thinned forests


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