Upper Midwest Environmental Sciences Center

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Estimating power to detect temporal trends in LTRM metrics

 

legendFigure 1b. Estimated power to detect temporal trends in mayfly (Ephemeridae) relative abundance in Pool 13 under the present sampling intensity (n = 120). Trends assumed exponential.

larger scale

Figure 1b

Disclaimer: This information is provided to help better inform ongoing LTRM 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, LTRM statistician, Upper Midwest Environmental Sciences Center, La Crosse, Wisconsin, at brgray@usgs.gov.
Untitled Document
Page Last Modified: April 17, 2018