Biologists agree that climate change reduces biological diversity. The specific processes that ultimately cause species to go extinct have, however, been little studied so far. Scientists at the German Centre for Integrative Biodiversity Research (iDiv) and the Leipzig University have now discovered that as temperatures rise, the complex relationships between species are changing. Prey species not only become stronger competitors for scarce resources, but also more preyed upon. These findings have now been published in the renowned journal Proceedings of the Royal Society B.