The pronounced changes which occurred with forest age likely were related to the development of more dense and diverse herb layer in mature forests which provides additional food resources in particular for epedaphic species.
To conserve the diverse herb layer, we conclude that mature forest stands are too young to serve as baselines for recovery, landscape-scale preservation of multiple forest stands is needed to maximize species richness, and maintaining 100 150-year logging rotations will likely lead to loss of biodiversity.
It is still unclear, however, which hedgerow habitats have the best potential of supporting diverse forest herb communities, making it hard to target particular structures for conservation.
The sphenophytes, for example, were once a large and diverse group of herbs, shrubs, vines, and trees but are now limited to only 15 species of horsetails; the woody lycophytes (club mosses) are entirely gone, leaving only a faint trail in their reduced modern representatives.
However, medical herbs have diverse roles within multiherb formulae according to well-known perspectives of traditional Korean medicine.
The availability of scientific evidence-based information on the efficacy of herbs for diverse healthcare problems may be particularly significant in patients with the resources to avail themselves to such information, particularly those with higher educational and income levels.
Population studies of Central American Begonia species will shed light on the evolution of species richness in a morphologically diverse group of neotropical herbs; but to date, studies have been limited by the availability of suitable nuclear markers to complement plastid microsatellite markers (Twyford et al., 2013).
The diverse composition of medicinal herb is reflected in a complex influence on bioaccumulation of essential metals Fe, Mn, Zn and Cu in chicken meats.
The best approach, of course, is no pesticides at all, and this crop of flea beetles was a strong indicator of what my vegetable plot truly lacks: good soil, a diverse planting of flowers and herbs to attract beneficial insects, and better timing on the part of the gardener.
Understanding how the diverse chemical components in medicinal herbs contribute to the overall pharmacological effect is a major challenge for current studies.
