Upper Midwest Environmental Sciences Center
Long
Term Resource Monitoring Program
Estimating power to detect temporal trends in
LTRMP metrics
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Disclaimer: This information is provided to help better inform ongoing LTRMP partner discussions. The power plots are generated from small sample sizes; all plots should be treated as approximate. Contact: Questions or comments may be directed
to Brian Gray, LTRMP statistician, Upper Midwest Environmental Sciences
Center, La Crosse, Wisconsin, at brgray@usgs.gov. |
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://www.umesc.usgs.gov/ltrmp/power_plots_mayfly_fig2b.html
Page Contact Information: Contacting the Upper Midwest Environmental Sciences Center
Page Last Modified:
March 7, 2011
Figure
2b: Estimated power to detect temporal trends in mayfly (Ephemeridae) relative
abundance under the present sampling intensity in Pool 26. Trends
assumed exponential.
