Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): Pamela G. Sikkink; Roy Renkin; Geneva Chong; Art Sikkink
    Date: 2013
    Source: Final Report: Assessing Sampling Methods YNP 2013. 41 p.
    Publication Series: Miscellaneous
    Station: Rocky Mountain Research Station
    PDF: Download Publication  (1.51 MB)


    The five field sampling methods tested for this study differed in richness and Simpson's Index values calculated from the raw data. How much the methods differed, and which ones were most similar to each other, depended on which diversity measure and which type of data were used for comparisons. When the number of species (richness) was used as a measure of similarity, the historic method captured significantly fewer species than the Daubenmire, modified-Whittaker, or Forest Inventory and Analysis (FIA) methods but similar numbers as the small-scale nested circular plot. When Simpson's Index was used to compare similarities, only the large-scale modified Whittaker method showed significantly greater values than the small-scale nested circles; no differences were observed among the other methods. If frequency data instead of cover data were used to compare similarities among methods, the historical method had significantly higher evenness, skewness, and kurtosis on average than all other methods. If a correspondence measure based on diversity was used, the historic method was most similar to the Daubenmire protocol.

    Publication Notes

    • You may send email to to request a hard copy of this publication.
    • (Please specify exactly which publication you are requesting and your mailing address.)
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.


    Sikkink, Pamela G.; Renkin, Roy; Chong, Geneva; Sikkink, Art. 2013. Assessing five field sampling methods to monitor Yellowstone National Park's northern ungulate winter range: the advantages and disadvantages of implementing a new sampling protocol. Final Report: Assessing Sampling Methods YNP 2013. 41 p.


    sampling methods, Yellowstone National Park, Simpson's Index

    Related Search

    XML: View XML
Show More
Show Fewer
Jump to Top of Page