| Subject | English | German |
| environ. | animal species reintroduction Attempts made to prevent the extinction of threatened species and populations by reintroducing them in their natural habitat. The reintroduction of species in a region requires a preliminary study to establish the reasons of their disappearance and the modifications that might have occurred in the biotopes | Wiedereinbürgerung von Tierarten |
| environ. | animal species reintroduction | Wiedereinbürgerung von Tierarten |
| environ. | plant species reintroduction Reintroducing wild plant species to their natural habitat. The reintroduction of species in a region requires a preliminary study to establish the reasons of their disappearance and the modifications that might have occurred in the biotopes | Wiedereinbürgergung von Pflanzenarten |
| environ. | plant species reintroduction | Wiedereinbürgergung von Pflanzenarten |
| environ. | reintroduction of native species | Wiederansiedlung einheimischer Arten |
| environ. | species reintroduction Reintroducing wild animal and plant species to their natural habitat. The reintroduction of species in a region requires a preliminary study to establish the reasons of their disappearance and the modifications that might have occurred in the biotopes | Wiedereinbürgerung von Arten |
| environ. | species reintroduction | Wiedereinbürgerung von Arten |