Ecosystem

On 21 March, the PASTURE project, which will explore glacier retreat in the Andes, was launched simultaneously online and live at the Alpine Museum of Switzerland in Bern. The joint project between WSL and the National Institute for Glacier and Mountain Ecosystem Research in Peru aims to assess the impact of climate change on water resources and mountain ecosystems and to facilitate countermeasures.

In order to better understand climate change in the Arctic and design effective mitigation measures, scientists at EPFL and PSI have studied the aerosols in a region spanning from Russia to Canada.

Nearly a hundred year old tissue samples from Lake Constance have enabled Eawag researchers to compare genetic material of an extinct whitefish species with that of extant co-occurring species. Their investigation showed that fragments of the genome of the extinct species have survived in today’s species. This could potentially facilitate the recolonization of the currently not occupied deep-water habitat.

Often overlooked until now: symbioses could be a driving force for the emergence of biodiversity. A case where bacteria live in aphids shows that this can even have practical implications for biological pest control.

The buffet of healthy insects starts earlier, is no longer as varied, and is only half as plentiful as it once was. This is the situation faced by insectivorous birds at Northern Temperate latitudes, such as Switzerland, during the breeding season. Ryan Shipley from the Eawag water research institute, has been investigating how climate change affects the timing and quality of the food supply for breeding birds.

Eawag researchers have won a competition organised by Britain’s National Centre for the Replacement, Refinement and Reduction of Animals in Research (NC3R). The prize money is awarded for use in research to develop technologies to replace animal testing.