FELD 03/2017

Without them there would be no apples, no tomatoes, no strawberries: However, there are fewer and fewer pollinators like bumblebees and bees buzzing around. In their search for the causes, researchers are taking a closer look at the ecosystem of arable land. // Millions of people live in big cities. The food they eat, usually has to be transported over hundreds of kilometres. A study is now investigating which metropolitan areas could organize their food supply more regionally. // Most of the fens in Germany have dried up and can no longer fulfil important environmental functions. A pilot project in Brandenburg has now for the first time tested their rewetting using purified waste water from sewage treatment plants. // Invasive mosquito species are on the rise in Germany: With the aid of a computer model, researchers want to predict their future distribution.