As observed with the annual grasses, annual forbs
are well adapted to establish following disturbances and can quickly dominate an area.
still ruled the land, but fewer species could make a go of it.
The digging, scratching, grazing, and clipping behaviors of prairie dogs reduce visual obstruction by favoring short, grazing-tolerant grasses, create more patches of bare ground, and promote annual forbs
(Agnew et al.
The study area in Oklahoma (56,175 ha) supported native prairie (59%) dominated by sand sagebrush and plums (Prunus) and fields of the Conservation Reserve Program (21%) dominated by Old World bluestems (Bothriochloa), lovegrass (Eragrostis), or native-mix, with numerous forbs
and grasses (Appendix 1).
Sheley and his partners found that seeding and watering at the first site produced the highest native grass and forb
density, while at the third site, tillage was key to the establishment and survival of native grasses and forbs
Parameters of herbaceous height and percentages of grasses, forbs
, bare ground, woody and other were all evaluated for statistically significant (P<0.
All vegetation within the frame was cut at the soil surface, sorted as to grasses and forbs
, and placed in paper bags, the tare for which had been measured earlier.
Studies in less mountainous habitats have found moose consume larger proportions of forbs
(25%, LeResche and Davis 1973; 70.
ABSTRACT -- The establishment of grasslands or wildflower meadows using native grasses and forbs
is a possible management option on archaeological sites that are dominated by fescue.
Listed as a regulated noxious weed in nearly 20 states, leafy spurge poses a significant environmental hazard, choking out desirable forbs
and vegetation and wreaking havoc on wildlife habitat, according to reports by the U.
It presents tallgrass prairie vegetation as dominated by warm-season grasses and an abundance of forbs
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.