Restoring Missing Wildlife: The return of the beaver as an opportunity for Portugal’s rivers
There are species that inhabit the landscape. And there are species that shape it. The European beaver (Castor fiber) belongs to the second group — it is what ecology refers to as an ‘ecosystem engineer’, an animal that does not merely live in its environment, but transforms it in a profound and lasting way. Its dams, built from branches, logs and mud, transform linear watercourses into mosaics of wetlands. And it is from this simple act that a cascade of ecological effects is set in motion, remarkable for its scope.