Non-native species are those that have established themselves outside their natural range either past or present, with the assistance of man either intentional or unintentional. Whilst most of these species are harmless or may be of benefit, a small proportion of them are invasive and can have significant environmental, economic and public health implications, Invasive non-native species impact by displacing or preying upon native species, by destroying habitats, or by introducing new diseases or parasites. Their threat to biodiversity is thought to be second only to that of habitat destruction. With the increase in trade, transport, travel and tourism, world globalisation has offered species new pathways and increased opportunities to establish in new areas.
Due to the increasing threat there are now a large number of international, national and local agreements, conventions, legislation and strategies pertaining to invasive non native species. Defra launched The Invasive Non-Native Species Framework Strategy for Great Britain in May 2008.
Find out what our our Investigate Invasives project is doing to meet the challenges invasive species pose in Cornwall.
