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A plot-level species inventory provides a rapid estimate of species richness. A thorough search of the plot can detect less-frequently occurring species that may not have been recorded in cover measurements (e.g., Line-point intercept). For a more intensive species richness measurement, see the modified Whitaker species richness approach.
The species inventory area is within at least a portion of the area covered by the Line-point intercept transects.
Figure 32. Three species inventory plot layout options to achieve an area of 1,641 m2: a) a single square species inventory plot with a side of 40.5 m (132.9 ft), b) three 10.9 (35.7 ft) x 50 m (164 ft) rectangular sub-plots, and c) a 22.9 m (75 ft) radius, circular plot. Dashed lines represent the path walked by the observer.
AF# = Annual forb (also includes biennials)
PF# = Perennial forb
PG# = Perennial graminoid
SH# = Shrub
TR# = Tree
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