the third cause of Pando's size: cloning

So if there were other comparably sized clonal colonies,they may have perished then.Meanwhile, Pando corner of Utah remained glacier-free.The soil there is rich in nutrients that Pando continuously replenishes;as it drops leaves and trunks,the nutrients return to nourish new generations of clones.Which brings us to the third cause of Pando's size: cloning.