It is commonly believed that diverse communities better resist invasion by exotic species
than do simple communities. We examined the history of this notion, and evaluated …

Current research efforts to understand the relative invasibility of different plant communities
have mostly ignored tropical forests. Only a few studies have treated invasive species in …

Humans have spread an enormous net over the land. As the largest human artifact on earth,
this vast, nearly five million mile (8 million km) road network used by a quarter billion …

Habitat loss and degradation that comes as a result of human activity is the single biggest
threat to biodiversity in the world today. Habitat Fragmentation and Landscape Change is a …

The invasion paradox describes the co‐occurrence of independent lines of support for both
a negative and a positive relationship between native biodiversity and the invasions of …

Native vegetation around the world is under threat from historical and ongoing clearance,
overgrazing, invasive species, increasing soil and water salinity, altered fire regimes, poor …

Invasion of natural ecosystems by exotic species is a major threat to biodiversity globally.
We assessed two alternative (but not exclusive) hypotheses to explain the success of exotic …

Biological invasion is a widespread, but poorly understood phenomenon. Elton's hypothesis,
supported by theory, experiment, and anecdotal evidence, suggests that an important …

The concept of habitat fragmentation is limited in its ability to describe the range of possible
landscape configurations created by a variety of disturbances. This limitation is especially …

Disturbances, such as fire and grazing, are often claimed to facilitate plant species richness
and plant invasions in particular, although empirical evidence is contradictory. We …