In response to the report, Government agencies have recently joined forces with the two environmental groups to prevent the invasion of new alien species.

This might have been caused by invasions of cosmopolitan species, rather than any single event.

The number of species invasions has been on the rise at least since the beginning of the 1900s.

This frees up resources and allows for the invasion of other species that were not previously present.

Also, habitats are subject to changes in their biota: for example, invasions of species from other areas.

There is also the issue of the invasion of non native species.

Charles Darwin was the first to study specific factors related to invasions of non-native species.

The economic repercussions of this type of species invasion can be devastating.

The plant is threatened by the invasion of introduced species of plants in its habitat.

Another economic benefit that results in invasions of exotic species is the desire to boost fisheries.