Question: What percentage of forested areas are Lodgepole Pine forests?
About the article "Yellowstone National Park", section "Flora".

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Higher elevation subalpine slopes are home to Engelmann spruce ("Picea engelmannii"), subalpine fir ("Abies lasiocarpa") and lodgepole pine ("Pinus contorta") while lower montane forests consist of lodgepole pine, quaking aspen ("Populus tremuloides"), white spruce ("Picea glauca") and Rocky Mountain Douglas-fir. 
There are ten main species that have become wildings:  Bishop Pine ("Pinus muricata")  Corsican Pine ("Pinus nigra")  Dwarf Mountain Pine ("Pinus mugo")  Lodgepole Pine ("Pinus contorta")  Maritime Pine ("Pinus pinaster")  Ponderosa Pine ("Pinus ponderosa")  Radiata Pine ("Pinus radiata")  Scots Pine ("Pinus sylvestris")  Douglas-fir ("Pseudotsuga" species)  European Larch ("Larix decidua") The various species dominate in different areas of New Zealand.
Radiata Pine (Monterey Pine) is used for 90% of the plantation forests in New Zealand and some of the wilding conifer is a result of these forests. 
An estimated 76 percent of Boise National Forest is forest, which is considered to be land that is capable of supporting trees on at least 50 percent of its area.
The forests are primarily coniferous evergreen forests dominated by ponderosa pine, lodgepole pine, and Douglas-fir at lower elevations and Engelmann spruce, subalpine fir, and whitebark pine at higher elevations.
Grand fir and western larch can be found in the northern part of the forest where there are moister conditions.
Quaking aspen, a deciduous tree, can be found in stands among conifers throughout the forest at elevations from to .
Non-forested areas occupy 23 percent of the forest, primarily on south-facing slopes, lower elevations in the forest’s southern latitudes, or high-elevation areas.
These non-forested areas are those dominated by grasses, forbs, or shrubs.
The warmest, driest forested areas occur at elevations from to and on south-facing slopes that are steep and dry.
These forests are dominated by ponderosa pine, which persists due to the presence of frequent non-lethal fires.
Douglas-fir occasionally occur in these forests alongside ponderosa pine, particularly at higher elevations.
The understory consists of bluebunch wheatgrass, Idaho fescue, mountain snowberry, and bitterbrush in drier areas and elk sedge, pinegrass, white spirea, mallow ninebark, and common snowberry at higher elevations.
In cool, moist areas ranging from to , Douglas-fir dominates.
Lodgepole pine and quaking aspen may be found alongside Douglas-fir in cooler areas, particularly where frost pockets form.
Understories in this forest type are dominated by mountain maple, mountain ash, and blue huckleberry in moister areas and white spirea, common snowberry, elk sedge, and pinegrass in drier areas.
Between elevations of and in the moist northern parts of the forest, grand fir dominates and western larch is found in early successional areas.
Understories are also made of mountain maple, mountain ash, blue huckleberry, and mallow ninebark.
Subalpine fir dominates at elevations from to along with mountain maple, serviceberry, Scouler’s willow, Sitka alder, menziesia, Utah honeysuckle, and mountain ash.
Lodgepole pine can dominate in cold, dry areas at elevations from to .
Understory vegetation can be sparse but include grasses, forbs, and huckleberries and grouse whortleberry.
Fires in lodgepole pine-dominated forests are typically lethal to trees and understories alike.
At the highest elevations, forests consist of subalpine fir alongside whitebark pine and Engelmann spruce.
Grasses and forbs tolerant to freezing throughout the growing season occupy the understory.
In non-forested areas at lower elevations with little precipitation, sagebrush typically dominates.
Species that commonly occur with sagebrush include Sandberg bluegrass, wild onion, milk vetches, bluebunch wheatgrass, bitterbrush, gray horsebrush, green rabbitbrush, and others.
In riparian areas below , trees such as black cottonwood, narrowleaf cottonwood, thinleaf alder, water birch, mountain maple can be found with shrubs such as chokeberry and willows.
Treeless riparian areas are dominated by willows along with thinleaf alder, chokecherry, mountain maple, shrubby cinquefoil fireweed, saxifrage, and grasses.
Sacajawea’s bitterroot ("Lewisia sacajaweana") is a plant species endemic to central Idaho, including parts of Boise National Forest, being found nowhere else in the world.
Only about two dozen populations of the plant are known to exist, and three-quarters of the populations are in Boise National Forest.
It is usually found at elevations ranging from to above sea level and produces white flowers shortly after snowmelt.
The forest contains habitat capable of supporting Ute lady’s tresses, a plant listed as threatened under the Endangered Species Act. 
With changes in climate, the extent of forested areas in Nevada could change little or decline by as much as 15-30%.
The uncertainties depend on many factors, including whether soils becomedrier and, if so, how much drier.
Hotter, drier weather could increase the frequency and intensity of wildfires, threatening both property and forests.
Drier conditions would reduce therange and health of ponderosa and lodgepole pine forests in the northern and western areas of the state, and increase their susceptibility to fire.
Grasslands, rangeland, and desert could expand into previously forested areas.
Milder winters could increase the likelihood of insect outbreaks and of subsequent wildfires in the dead fuel left after such an outbreak.
Thesechanges would significantly affect the character of Nevada forests and the activities that depend on them.
Increased rainfall could reduce the severity of these effects. 
Wildlife include the North Kings and Huntington deer herds, black bear, golden-mantled ground squirrel, coyote and the Sierra red fox.
Also martins and pikas in rocky areas above timberline.
Dinkey Lakes Wilderness has forests of red fir, lodgepole pine, western white pine, with mountain hemlock and whitebark pine at higher elevations.