Many plant species travel around the world, as seeds or plantlets, accompanying different animal species or wind. These alien individuals, just arrived to the new land, may success and turn into invasive, competing for the needed resources that, on a previous time, belonged exclusively to the native species (whom might also have been foreigners many millions of years ago). The ecophysiological adaptations to the new environment and to the new possible predators will enlighten the causes of their success.
Moreover, global change is modifying the available resources for these communities to keep growing. Understanding the different strategies of both native and invasive plant species to become acclimated to the new climatic scenario will help us to forecast their evolution and future distribution. The ecophysiology of the invasive species is of utmost importance nowadays to prevent an abrupt change of our Mediterranean biodiversity.