Bedeutung der Herkunft von Saatgut: Untersuchungen an Buntbrachen und anderen okologischen Ausgleichsflachen

The study discusses possible implications of the introduction of foreign seed material on ecological compensation sites. Eight herbaceous species of compensation sites on farmland were used as an example. First experiments with up to eleven European provenances revealed differences in establishment, phenological patterns and life cycle. Some of them are probably adaptations to climatic differences. The results indicate that the introduction of foreign seed has potentially detrimental effects. However, legal consequences of translocating native species are still under debate. Future research should focus on the effects of non-native populations on the genetic diversity of local genotypes.