"Some 10 million species of plants, animals, and microbes are thought to inhabit the earth, but so far only about 1.5 million of these have been identified. A mere 15 of the approximately 250,000 known plant species provide the world's human population with about 90 percent of its food.1 These...

An assessment of the consequences of biological invasions and of the measures taken against must be at the base of each social decision in this field. Three forms of uncertainty can be distinguished that make such a decision difficult to take: (1) factual uncertainty, which encompasses not only...

In der politischen Diskussion werden für den Erhalt der biologischen Vielfalt in der Regel ökonomische Argumente vorgebracht: Biodiversität sollte als ökonomisches Gut betrachtet werden. Dem Rückgang der Vielfalt sei entgegenzutreten, indem man die Auswirkungen menschlicher Aktivitäten auf...