Graph of the Day: Greenland Lemming Density, 1987-2007

The recent observed collapse in the population cycles of small rodents, shown here for lemmings in northeast Greenland, as a result of diminished snow cover in the Arctic [from O. Gilg, B. Sittler, I. Hanski, Glob. Change Biol. 10.1111/j.1365-2486.2009.01927.x (2009)].

Eric Post, et al., Ecological Dynamics Across the Arctic Associated with Recent Climate Change, Science, 11 September 2009: Vol. 325. no. 5946, pp. 1355 – 1358 DOI: 10.1126/science.1173113