Don't put all your eggs in one basket -- or all your horses on one pasture

Winters in the Gobi desert are usually long and very cold but the winter of 2009-2010 was particularly severe. Millions of livestock died in Mongolia and the re-introduced wild Przewalski's horse population crashed dramatically. Petra Kaczensky and Chris Walzer from the University of Veterinary Medicine, Vienna have used spatially explicit loss statistics, ranger survey data and GPS telemetry to provide insights into the effect of a catastrophic climate event on wild horses, wild asses and livestock.

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