A predictive understanding of the ecological impacts of nonnative species has been slow to
develop, owing largely to an apparent dearth of clearly defined hypotheses and the lack of a …

Invasive species are a major element of global change and are contributing to biodiversity
loss, ecosystem degradation, and impairment of ecosystem services worldwide. Research is …

Human-mediated species invasions are a significant component of current global
environmental change. There is every indication that the rate at which locations are …

A consistent determinant of the establishment success of alien species appears to be the
number of individuals that are introduced to found a population (propagule pressure), yet …

The Ecological Society of America has evaluated current US national policies and practices
on biological invasions in light of current scientific knowledge. Invasions by harmful …

Invasion ecology urgently requires predictive methodologies that can forecast the ecological
impacts of existing, emerging and potential invasive species. We argue that many …

The damaging effects of invasive organisms have triggered the development of Invasive
Species Predictive Schemes (ISPS). These schemes evaluate biological and historical …

Understanding the mechanisms by which nonnative species successfully invade new
regions and the consequences for native fauna is a pressing ecological issue, and one for …

The introduction and spread of non-native species is one of the least reversible human-
induced global changes. In South Africa, non-native fish introductions have occurred over …

Macroecology is the study of patterns, and the processes that determine those patterns, in
the distribution and abundance of organisms at large scales, whether they be spatial (from …