Many species introduced outside their native origin often thrive more successfully in their invaded environment than in their native habitat (McNeely 2001), this is evident in Lough Corrib, where L.major has exclusively dominated several littoral bays. Scalera and Zaggi (2004) noted that an exotic invasive species is considered ‘invasive’ once it is capable of establishing a steady population, colonizing and altering an ecosystem and capable of rapid expansion in natural or semi-natural ecosystems
seen. Among the many threats to biodiversity; the destruction of habitats, population growth, pollution, invasive species and overexploitation, climate change is having an adverse effect on biodiversity. The link between biodiversity and climate change has been established for quite some time now. Ecosystems are already showing negative impacts under current levels of climate change. This essay will argue that climate change is a huge