Decayed Wood Advisor

Species Codes All Wildlife Species Inventory Distribution Tutorial
Data Caveats Back to Narratives Print Metric Conversion
Snag Density -

Cumulative species curve graphs and the corresponding box and whisker figures on this screen are scaled the same horizontally to aid comparison of wildlife and inventory data. To interpret the box and whisker figures of inventory data see the DecAID Tutorial. Below, the “Underlying Wildlife Data” button will display values in cm and in, sample size, and the number of studies for each data point. The “Underlying Inventory Data” button will display the summary statistics from forest inventory data, for all vegetation conditions. In the button bar above, the “Inventory distribution” button will display histograms of the distribution of snag density classes from forest inventory data for this vegetation condition. For use of other buttons, see the DecAID Tutorial.

Some figures include data from all subregions within the wildlife habitat type. Also, for some graphs the data for Small/Medium Trees and Larger Trees structural condition classes are identical if data were collected in both structural condition classes; these figures and the underlying data tables are labeled with "S/L".

Underlying Wildlife DataUnderlying Inventory Data

[Graph]: Graph of cumulative species curves for density (#/ha) of snags >  approximately 25 cm dbh: species use of areas for nesting and roosting with documented snag densities for 30%, 50%, and 80% tolerance levels  in the Eastside Mixed Conifer Forest Wildlife Habitat Types and Small/medium Trees and Larger Trees Structural Condition Classes.
[Graph]: Box and whisker graph displaying 30%, 50%, and 80% tolerance levels, and range of densities (#/ha) of snags >= 25.4 cm dbh on unharvested inventory plots (n=110) that contained measurable snags (upper figure) and all unharvested inventory plots (n=159) (lower figure) in the Eastside Mixed Conifer Forest, East Cascades/Blue Mountains, Larger Trees Vegetation Condition.

 

[Graph]: Graph of cumulative species curves for density (#/ha) of snags > = approximately 50 cm dbh: species use of areas for nesting and roosting with documented snag densities for 30%, 50%, and 80% tolerance levels  in the Eastside Mixed Conifer Forest Wildlife Habitat Types and Small/medium Trees and Larger Trees Structural Condition Classes.
[Graph]: Box and whisker graph displaying 30%, 50%, and 80% tolerance levels, and range of densities (#/ha) of snags >= 50.0 cm dbh on unharvested inventory plots (n=95) that contained measurable snags (upper figure) and all unharvested inventory plots (n=159) (lower figure) in the Eastside Mixed Conifer Forest, East Cascades/Blue Mountains, Larger Trees Vegetation Condition.