In 2006 a new survey was conducted to determine the extent of non-native pest species invasions on each island and the feasibility of a restoration program.
12.
For example, Mueller and Hellman reviewed 468 documented species invasions and found that only 14.7 % occurred on the same continent where the species originated.
13.
The alien species invasion-- Interior secretary Bruce Babbitt calls it an " explosion in slow motion "-- is turning even staunch conservationists into stone cold killers.
14.
In San Francisco Bay, which ecologists consider ground zero for alien species invasions, crabs from Asia and the Atlantic coast of North America share space with sea slugs from New Zealand and cordgrass from New York.
15.
However, given the accelerated rate of ecological change driven by human land-use change, global warming, exotic species invasions, and changes in ecological communities resulting from species loss, ecological traps may be an increasing and highly underappreciated threat to biodiversity.
16.
Importantly, these modern tools provide quantitative predictions about the effects of human induced environmental change on a diverse variety of ecological phenomena, such as : species invasions, climate change, the effect of fishing and hunting on food network stability, and the global carbon cycle.
17.
Those who wish to keep assisted colonization on the table often note that the vast majority of historical species invasions have resulted from continent-to-continent or continent-to-island transportation of species and that very few invasions have resulted from the comparatively short-distance, within-continent movement of species proposed for assisted colonization.
18.
The need for a clearly defined and consistent "'invasion biology terminology "'has been acknowledged by many sources . " Invasive species ", or " invasive exotics ", is a nomenclature term and categorization phrase used for flora and fauna, and for specific restoration-preservation processes in native habitats . " Invasion biology " is the study of these organisms and the processes of species invasion.
