Introduction
When we talk about the ecology (the science that studies how the organisms interact with one another and with their physical environment) one topic that seems to be very important to understand the actual state of the ecosystem and the species that live there is the pernicious action of the human being. The power of the human influence constitutes a complete chapter in ecology books and manuals. The introduction of species to exogenous spaces is one of the human acts that cause terrible effects on the balance of the environment, such as quantitative and qualitative damages in autochthonous species or collateral consequences in human activities or quotidian life. ¡Is important to remark that the fault is not of the animals! In Chile, one of the most representative (I said “representative” because the specie is part of the national badge, but no for the public efforts to protect him) animal species is the Huemul (Hippocamelus bisulcus). The relative abundance of this specie is very li...