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How fast can trees migrate?

“As I did stand my watch upon the hill, I looked toward Birnam, and anon methought the wood began to move.” – Messenger, Shakespeare’s Macbeth The simple story of the last 2.5 million years of vegetation response to climate change could be summed up like this: temperature goes up and down, plants […]

Climate AND humans? A new study using ancient DNA, fossils, & models contributes to a classic problem in paleoecology

The extinction of the ice-age megafauna is one of the most persistent (and contentious) problems in paleoecology. Since the 1960’s, the literature has been dominated by fierce debates about whether humans or climate change were responsible for the demise of the mammoths, mastodons, woolly rhinos, and other now-extinct megaherbivores and […]