This article highlights that although some species work great in the ecosystems they evolved in, i.e. hedgehogs on mainland UK, it is a very bad idea to transport them elsewhere to carry out the same ecosystem functions.
It may surprise many that the same species of hedgehog that we encourage in our gardens here have been a big problem where they have been introduced in The Uists and New Zealand.
A project to eradicate black rats from a group of small uninhabited Scottish islands secured European Union funding this month. The Shiant Seabird Recovery Project is not the first scheme to secure thousands of pounds to tackle unwelcome non-native species. But how did these creatures get to some of the furthest flung corners of Scotland, why are they a pest and what is the price of dealing with them?