The Netherlands is a crowded country: lots of people, cities, industry and livestock. Is there still room for nature? Prof dr Hans de Kroon (Professor of Ecology at Radboud University) keeps a close eye on biodiversity in the Netherlands. What is the impact of nitrogen on our flora and fauna? And what influence does climate change have? What can we ourselves do to increase biodiversity in our environment? Dr Rolf de By (UT, ITC) holds a co-referral in which he talks about species diversity on campus.