forb

Effect of fire and grazing on forbs in the western south Texas plains.

In the resource-poor dry meadow, subordinate forbs should be more responsive to fertilization than are the dominant functional group (sedges).

A stark sweep of gray ash, sparse trees, and struggling forbs characterizes this area.

At the plant community level, the presence of bison or cattle at low to moderate densities has been shown to increase overall plant species diversity relative to ungrazed prairie, with most of the additional species being forbs (Collins et al, 1998; Hartnett et al., 1996).

The cover percentages were divided as follows: Forbs 28.8 %, Grass 63.4 % and Shrubs 7.53 %.

Woody browse and forbs are main components of the diet of mule deer (Krausman et al., 1997).

(1983) found grasses dominate areas recently colonized by prairie dogs and forbs increase over time following colonization.

Grasses, forbs and shrubs of alpine pastures harvested at three different intervals from four different altitudinal zones (2925-4184 m), Basel, Jalkhad, Gittidas and Burawai in upper Kaghan valley, Pakistan, were assessed for herbage production and nutritive value.

During winter (January-April), when migrants and non-migrants occupied the same winter range, the overall percent relative density for each forage class in Pronghorn diets (n = 51 composite fecal samples) was 67 + 6% (standard error) shrubs, 17 + 3% forbs, 13 + 3% grasses, and 3 + 1% other.

Further, dense patches of nettles are associated with reduced abundance of summer-reproducing forbs and graminoids in Minnesota forests, along with increases in sugar maple (Biederman 2000).