Restoration
Human activities such as extraction of timber, plants and wildlife, agriculture, cattle ranching and urban and infrastructure development change the original characteristics of ecosystems. Some of these activities simply change the composition or abundance of species while others can completely alter the ecosystem.

In many cases, if we wish to continue to benefit from the resources and environmental services that ecosystems provide us with, it is necessary to restore them, i.e., we need to reconstruct their original characteristics. This proposal may sound very straightforward, but it is not. First, since the effects of human activity may have been felt for hundreds or thousands of years, the original features of most ecosystems are unknown: which species dominated the landscape? in what abundance?, etc.