News

Gabriela Costea is part of an international team developing concepts for better management of the Danube. In an interview, she explains why communication is so important when it comes to implementing research findings – and why a children’s book can help.

Why do animals actually hunt in groups, when they have to share the prey afterwards? Researchers have shown in a field study in the ocean off Mexico: the faster the prey school moves, the higher the capture rate of the striped marlin. This is because if the prey school is moving fast, individual prey fish are more likely to become isolated from the swarm. These isolated fish are then easily caught by the non-attacking marlins. This shows an advantage of group hunting for the predatory fish.

DNA metabarcoding is a molecular analysis method that offers a promising solution for efficient insect monitoring. A study published in the journal Molecular Ecology Resources, to which researchers of IGB contributed, provides detailed guidelines for the large-scale application of this method, including estimates of the costs and time required.

When an endangered species succeeds in repopulating its former habitat, the immediate reaction is one of joy. In the long term, however, its spread is often associated with conflict. One example is the beaver, a keystone species. Other keystone species include the wolf and the bison. These are animals that have an extraordinary impact on the ecosystems in which they live. The reintroduction of such keystone species often restores important processes and ecosystem functions.

A study in Nature Communications has shown at the genetic level how bacteriophages can maintain an important metabolic pathway in infected aquatic bacteria – presumably in order to have enough energy for their own reproduction. 

Light pollution is more serious than we realise: Moths not only lose their orientation directly under street lights. Their flight behaviour outside the illuminated area is also disturbed, so that street lighting can even act as a barrier. This is shown by a study with the Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), which was published in the scientific journal PNAS.

Professor Dörthe Tetzlaff was today awarded the highly endowed Water Resources Award of the Rüdiger Kurt Bode Foundation. The prize, which is awarded every three years for outstanding work on the sustainable use of global water resources, honours Tetzlaff's pioneering research on the interactions between climate, land use, water quality and the ecohydrological processes that control water dynamics in landscapes.

A team of authors has been awarded the BWK Publication Prize for their research into the ecological impact of hydropower plants. The paper, published in the journal WASSER UND ABFALL, provides a comprehensive analysis of how hydropower plants affect the hydromorphology and ecological condition of German streams and rivers, thereby counteracting efforts to revitalise them.