Christian Schwägerl, reporting for Yale e360:
The Töpchin project is an example of a growing conservation trend in Europe — using large, exotic herbivores to enhance the diversity of native flora and fauna. Many people still believe that nature conservation is all about leaving native plants and animals alone, or restoring their habitats to a wild state. But in a world dominated by humans and rapid environmental change, things have become more complicated. The answer isn’t always to strive for a regionally “pure” mix of native species. A growing number of conservationists now seek to employ exotic species for managing native biodiversity.