This study, conducted in 2013, measured the growth, biomass allocation patterns, and reproduction of six common perennial forb
species representing replicate populations in watersheds with and without large grazers (bison).
Seasonal fires, bison grazing and the tallgrass prairie forb
Arnoglossum plantagineum Raf.
Annual and perennial forb
productivity and vegetative cover fluctuated throughout the sampling period, especially at the Chandler site (data not shown).
Western ragweed was the dominant forb
in most quadrats (eight quadrats).
The vegetation of the High Andean Province includes a mosaic of grasses, shrubs and forbs
of extremely limited cover.
Fecal analysis showed moose rely more heavily on grasses, sedges, and forbs
Five species of forbs
and four species of grasses were chosen according to site compatibility, prevalence in Tennessee or southeastern United States, price, and minimum time required for germination (Table 1).
The effects of management on birds often are evaluated by relating measures of bird abundance and reproductive success to features of the vegetation, such as vegetation height, vegetation density, litter depth, and percentage cover of shrubs, forbs
, and bare ground.
Individual planted prairie grass and forb
species showed varying establishment successes (Table 2).
Univariate comparisons among regions showed that percent forb
cover and woody vegetation height had the greatest amount of variation (Fig.
cover and species richness exceed those of graminoids in most savanna microsites, it might be more appropriate to describe midwestern oak savannas as forblands rather than grasslands.
For each 1 x 1 m plot, plant biomass and forb
densities were summed across the three community sampling quadrats and then expressed at the plot level on a per square meter basis.