Evaluation of the improvement in sensitivity of nested frequency plots to vegetational change by summation

Western North American Naturalist
By: , and 

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Abstract

At four sites in Idaho, frequency was measured separately with three different-sized plots (10 x 25, 15 x 33.5, and 20 x 50 cm) arranged in a nested configuration. These individual frequency values were added together to create a summed “frequency.” This summed value was compared to the original frequency values generated by each individual plot size in respect to its ability to detect range trend. The summation procedure consistently detected smaller changes in frequency than any individual plot size. In addition, the summed values detected a significant change in more species at each site. Summing the frequency values usually detected changes at a lower alpha level than did any single plot (0.10 vs. 0.20).

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Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Evaluation of the improvement in sensitivity of nested frequency plots to vegetational change by summation
Series title Western North American Naturalist
Volume 47
Issue 2
Year Published 1987
Language English
Publisher Brigham Young University
Contributing office(s) Earth Resources Observation and Science (EROS) Center
First page 299
Last page 307
Country United States
State Idaho
Online Only (Y/N) N
Additional Online Files (Y/N) N
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