image: The common vole (Microtus arvalis) is the most common species in European farmland. Continent-scale collapses in population cycles of these species and other grass-eating voles could have profound effects on predators and on other components of the food web. This image relates to a paper that appeared in 5 April, 2013, issue of Science, published by AAAS. The paper, by Thomas Cornulier at the University of Aberdeen in Aberdeen, UK, and colleagues was titled, "Europe-Wide Dampening of Population Cycles in Keystone Herbivores." view more
Credit: [Photo by Karol Zub]