Savannas occur where trees and grasses interact to create a biome that is neither grassland
nor forest. Woody and gramineous plants interact by many mechanisms, some negative …

▪ Abstract Natural ecological disturbance creates habitats that are used by diverse groups of
birds. In North America, these habitats or ecosystems include grasslands or prairies …

While most efforts at biodiversity conservation have focused primarily on protected areas
and reserves, the unprotected lands surrounding those area—the" matrix"—are equally …

Although it is well known that fire can exert strong control on stand structure, composition,
and dynamics in savannas and woodlands, the relationship between fire frequency and …

Before any other influences began to fashion life and its lavish diversity, geological events
created the initial environments--both physical and chemical--for the evolutionary drama that …

Oak cover types comprise half of the forestlands in the eastern United States. There is a
great desire to sustain these highly valued forests. Unfortunately, reports of the successional …

A widely assumed but largely untested hypothesis central to ecology and evolutionary
biology has been Charles Darwin's suggestion that closely related species will be more …

The perception is that today's large fires are an ecological catastrophe because they burn
vast areas with high intensities and severities. However, little is known of the ecological …

The high species richness and diversity found in tropical montane habitats are often related
to: 1) an effect of climatic and geological history on biotic evolution; 2) the various …

We investigated the influence of the exotic nitrogen-fixing black locust (Robinia
pseudoacacia) on nitrogen cycling in a pitch pine (Pinus rigida)− scrub oak (Quercus …