One of the main objectives of nature conservation in Europe is to protect valuable cultural landscapes characterized by a mixture of open habitats and hedges, trees and patchy woodland (semi-open landscapes).The development of these landscapes during the past decades has been characterized by an ongoing intensification of land use on the one hand, and an increasing number of former meadows and pastures becoming fallow as a result of changing economic conditions on the other hand. Since species adapted to open and semi-open landscapes contribute to biodiversity in Europe in a major way,...