Climate change affects the genetic diversity of a species

What effects does climate change have on the genetic diversity of living organisms? In a study led by Charité – Universitätsmedizin Berlin, an international team of researchers studied the genome of the alpine marmot. Results were unexpected: the species was found to be the least genetically diverse of any wild mammal studied to date. The alpine marmot has lost its genetic diversity during ice-age related climate events and been unable to recover its diversity since.
Source: EurekaAlert,