The forests, fields and estuaries of the Chesapeake watershed look and feel starkly different in winter. The lush, green deciduous forests of summer turn into drab brown, icy, snow-covered landscapes.

Martin J. Lechowicz, Why Do Temperate Deciduous Trees Leaf Out at Different Times? Adaptation and Ecology of Forest Communities, The American Naturalist, Vol. 124, No. 6 (Dec., 1984), pp. 821-842 ...

, , Lena Gustafsson, , Mats Jonsell, Jan Weslien, Threatened Plant, Animal, and Fungus Species in Swedish Forests: Distribution and Habitat Associations, Conservation ...