Soil food webs play a key role in supporting grassland ecosystems, which cover about one-quarter of the land on Earth. Climate change poses a threat to these environments, partly because of the uncertainty of extremes in rainfall, which is projected to increase.
To learn more about the effects of these extreme events, a team of soil and plant ecologists, supported by funding from the National Science Foundation, studied nematodes, which play a key role in carbon and nutrient cycling and decomposition in soil.
Principal Investigator Osvaldo Sala is founding director of the Global Drylands Center at Arizona State University. We asked him about the study, out June 10, 2019, in Proceedings of the National Academy of Sciences.