Harvard scientists are taking a hard look at northeastern forests for evidence of a potential springtime scramble, one that could be triggered if age-old growth cues are disrupted by climate change.

Researchers in the Department of Organismic and Evolutionary Biology and the Arnold Arboretum are examining whether the earlier arrival of warm weather will clash with genetic programming tuned to lengthening days and the duration and depth of winter cold.

Researchers led by Assistant Professor of Organismic and Evolutionary Biology Elizabeth Wolkovich and research fellow Dan Flynn gathered hundreds of cuttings from 28 different species in Massachusetts and Quebec and grew them under an array of controlled conditions in Arnold Arboretum growth chambers, tracking how each responded to varying levels of temperature and light.

Blooming bud

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