invasive species

Mega-crabs

 

This spooky video shows the giant red crab which have invaded Antarctic waters due to increased water temperatures: an example of how changes in non-living factors can alter the distribution of organisms.  This invasive species has the potential to destroy the delicately balanced food webs in this ecosystem.

Attack of the killer shrimps

Photo:Heyrocker/Flickr

The story

It may have been killer piranhas hitting our cinema screens this summer but now something not quite as scary but potentially devastating to British wildlife has hit our water ways.

Dikerogammarus villosus is a tiny shrimp of between 3 and 30mm but has been given the moniker the killer shrimp because of its aggression and nasty habit of killing and maiming other small invertebrates which it often doesn’t eat. More

Brown rat tops the charts

No, this is not a post about the return of Roland rat to the music industry but a look at the impact of invasive species. More