FQAIFloristic Quality Assessment Index (vascular plants)
References in periodicals archive ?
In contrast the two exotic old fields were characterized by low mean C values and FQAI values indicative of highly disturbed, weed-dominated sites.
Nor is there a relationship between the number of moths recorded and the mean C value (P = 0.21, R-Sq = 13.9%) or the FQAI score (P = 0.16, R-Sq = 16.8%) at the sample sites.
We saw consistent trends toward greater richness (S) and floristic quality (FQAI) in fenced treatments, an indication that some of the more sensitive species capable of regenerating under complete protection had not yet recovered under the reduced browsing pressure of the current deer management regimen.
TABLE 1 Groundcover species diversity (H'), evenness (1/d), richness (S), and quality (FQAI) in browsed (B) and fenced (F) treatments at three sites at Sharon Woods.
The FQAI was calculated using the following formula (I = the FQAI, R = sum of the C of C values for a given area, N = number of native species):
Based upon examples cited by Andreas and Lichvar (1995), we defined individual areas with FQAI of 50 or higher as having extremely high quality, whereas, areas of 10 or less had low quality.
Using C of C values, we computed FQAI for each vegetation subtype: wet meadow (I = 13.5), emergent marsh (I = 12.7), disturbed shrub swamp (I = 17.3), disturbed wet forest (I = 19.4), and mixed hardwood forest (I = 18.7).
FQAI values of 12.7 to 19.4 signify that habitats at the site were of low to moderate quality.