Explore: Red Spruce Decline

Picea rubens, commonly known as red spruce, is a species of spruce native to eastern North America, ranging from eastern Quebec and Nova Scotia, west to

The spruce grouse (Canachites canadensis), also known as Canada grouse, spruce hen or fool hen, is a medium-sized grouse closely associated with the coniferous

in the United States. Southern spruce–fir stands consist primarily of two needle-leaved evergreen species—the red spruce and the Fraser fir, nicknamed

mixed with other trees. Taiwan spruce is one of the most important timber species in Taiwan. Populations have declined because of overexploitation. Zhang

In Great Britain, Ireland and in Italy, red squirrel populations have decreased in recent years. This decline is associated with the introduction by humans

temperate regions in the world. Centered primarily around Southern Appalachian spruce–fir forests between southwestern Virginia and southwestern North Carolina

areas covered with coniferous forests. Pindrow Fir (Abies pindrow), Morinda spruce (Picea smithiana), deodar (Cedrus deodara), blue pine (Pinus wallichiana)

Picea asperata (dragon spruce; Chinese: 雲杉) is a spruce native to western China, from eastern Qinghai, southern Gansu and southwestern Shaanxi south to

North America is mostly spruce; Scandinavian and Finnish taiga consists of a mix of spruce, pines and birch; Russian taiga has spruces, pines and larches depending

Air pollution is contributing to increased red spruce tree mortality at higher elevations and oak decline at lower elevations, while invasive hemlock