Welcome!

This web site analyzes vegetation data collected by the National Park Service in the Columbia Basin and Greater Yellowstone Region. Data presented here are abundances of principle native and non-native species, measured as Daubenmire cover classes. To find out more, visit our publications page.

Park

First Year

Last Year

Sample Frame

Species

Cover class threshold


If you choose a range of years, then you must choose a cover class threshold.

Thresholds are minimum values. If, for example, you choose a threshold of Greater than 0%, your results will show the % of plots containing AT LEAST 1-5% cover OR MORE.

If you pick the same year twice, then your threshold choice will be ignored and all cover classes will be presented.


Park

First Year

Last Year

Sample Frame

Species

Cover class threshold


If you choose a range of years, then you must choose a cover class threshold.

Thresholds are minimum values. If, for example, you choose a threshold of Greater than 0%, your results will show the % of plots containing AT LEAST 1-5% cover OR MORE.

If you pick the same year twice, then your threshold choice will be ignored and all cover classes will be presented.


Park

First Year

Last Year

Sample Frame

Species

Explanatory Variable




Park

First Year

Last Year

Sample Frame

Species



Pick the same year twice to see a single year's data. Frame and species choices will be limited to those that are available in the years that you choose (inclusive).

**Maps with background imagery may take up to 10 seconds to compose. PLEASE BE PATIENT.**