In den letzten Jahrzehnten unterlagen tropische Landschaften einem drastischen Wandel der Landnutzung. Die Transformation der natürlichen Vegetation, hin zu landwirtschaftlichen Produktionssystemen bedeutet negative Auswirkungen auf Ökosystemfunktionen, erhöht aber das Potenzial für...

Crop pollination by animal pollinators is an important ecosystem service for which there is no generally accepted valuation method. Here, we show that two existing valuation methods, previously thought to be unrelated, are each a special case of a more general equation. We then present a new...

This study applies a production function approach to value the groundwater recharge function of the Hadejia-Nguru wetlands in northern Nigeria. The groundwater recharge function supports dry season agricultural production which is dependent on groundwater abstraction for irrigation. Using survey...