As planet warms, delay between tree leaf unfolding, flowering grows wider
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Ash trees put out flowers before leaves. Photo by Pikist/CC
Dec. 21 (UPI) Regardless of whether a tree puts out flowers or unfolds its leaves first, new research suggests the time delay between the two phenological events has increased as global temperatures have risen.
Previous studies have found trees are putting out flowers and unfurling their leaves earlier as a result of global warming, but the latest research published Monday in the Journal of Ecology is the first to look at the time gap between the two