Evaluation of the improvement in sensitivity of nested frequency plots to vegetational change by summation
Western North American Naturalist
By: Stuart D. Smith, Stephen C. Bunting, and M. Hironaka
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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).
Study Area
| 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 |
| Google Analytic Metrics | Metrics page |