Agricultural expansion and intensification are key drivers of biodiversity decline. There is mounting evidence that modern farming impacts the effectiveness of protected areas as one of the key instruments of biodiversity conservation through, for example, eutrophication, pesticide emissions or increasing access to remote areas [1]. This is increasingly acknowledged and in many countries conservation efforts now include farmed lands and engage farmers to enhance biodiversity on their lands. This benefits farmland biodiversity which, especially in Eurasia, supports some highly threatened species groups [2]. However, farmland biodiversity is also functionally important as it provides a wide range of ecosystem services. Examples are natural pest regulation, pollination, carbon sequestration, human well-being, water purification and cultural services. Agricultural management influences the provision of a wide range of ecosystem services and therefore, contributes to food security and mankind’s ability to sustain itself in the mid to long term. There is clear evidence that enhancing farmland biodiversity promotes the delivery of specific ecosystem services [3]. For example, enhancing wild pollinators and natural enemies through the provision of semi-natural habitat enhances productivity of many crops [4, 5]. However, only a few ecosystem services, such as pollination, pest control and nutrient cycling, may provide private benefits to farmers. Other services, such as carbon sequestration, biodiversity conservation, health benefits and water purification, are public goods which are poorly captured by markets [6].

biodiversity conservation, biodiversity-enhancing management on farms, agricultural management