Numbers of species above ground and below ground may be correlated when taxa in both
realms respond similarly to the same or correlated environmental driving variables …

To determine why herbaceous productivity in tropical and subtropical savannas is often
significantly higher under crowns of isolated trees than in adjacent grass—lands …

The significance of biodiversity to biogeochemical cycling is viewed most directly through
the specific biogeochemical transformations that organisms perform. Although functional …

1. To determine whether agroforestry and silvopastoralism might be introduced more
successfully into xeric or into mesic environments, the effects of isolated, mature trees of …

Climate, organisms, topographic relief, and parent material interacting through time are the
dominant factors that control processes of soil formation and determine soil properties. In …

The utility of soil fauna as indicators of soil quality depends on how soil quality is defined.
This chapter examines the specific case of earthworms as soil quality indicators. It discusses …

Intensification of agriculture in the tropics has resulted from a shortage of farmland and
insufficient food production to satisfy the needs of an expanding population. Many tropical …

Global climate projections present a very grim picture for the future of agriculture in parts of
Africa and Asia. Projections indicate marked impact on rainfall patterns and the mean …

Temporal (monthly in three fields for 12 months) and spatial (once in 23 fields during March-
April) samplings were conducted in the major soybean (Glycine max)-growing region of the …

1. This study investigates the effects of experimental plant communities on different trophic
levels in the soil food web of abandoned arable land. 2. In April 1996, a biodiversity …