Christian Körner has been at the forefront of research investigating treelines, and in the late
1990s and early 2000s he proposed a unifying theory to explain the global occurrence of …

Because they maintain green foliage throughout the winter season, evergreen conifers may
face special physiological challenges in a warming world. We assessed the midwinter low …

Of the numerous hypotheses that have been proposed to explain the reported reduction in
vigor, biomass, and regeneration of red spruce (Picea rubens Sarg.) throughout various …

Current hypotheses on conifer tree stem degradation at treeline indicate the influence of
frost desiccation caused by dehydration of wind-exposed needles above the snowpack …

Abstract Red spruce (Picea rubens Sarg.) suffers frequent and extensive injury to current-
year foliage during the winter. Experimental freezing of red spruce foliage at cooling rates> …

For many, concerns about the implications of “environmental change” conjure up scenarios
of forest responses to global warming, enrichment of greenhouse gases, such as carbon …

Red spruce (Picea rubens Sarg.) decline has been quantitatively attributed to foliar winter
injury caused by freezing damage. The results of this injury include foliar mortality, crown …

To survive subfreezing winter temperatures, perennial plant species have evolved tissue-
specific mechanisms to undergo changes in freezing tolerance that parallel seasonal …

Selected branches of red spruce {Picea rubens Sarg.) saplings growing at 900 m in
elevation on Camels Hump Mountain, Vermont, were treated with an acrylic polymer …

Recent studies have shown that winter needle mortality in red spruce (Picea rubens Sarg.) is
increased by exposure to direct solar radiation, possibly as a result of photo-oxidative …