whitebark pines造句

• Trees in this community include Whitebark Pine and Mountain Hemlock.
• Whitebark pine forest could be replaced with Douglas fir.
• Whitebark pines are the cause of most concern.
• Siberian dwarf pine, mountain pine, whitebark pine and the bristlecone pines ).
• The whitebark pine produces cones with pea-size nuts that bears eat in the fall.
• Enter the global warming factor and a disease that affects whitebark pines called European blister rust.
• Distinguishing whitebark pine ( " Pinus albicaulis " ), from the related cones.
• This U . S . group collaborates closely with the Whitebark Pine Ecosystem Foundation of Canada.
• At the highest elevations, forests consist of subalpine fir alongside whitebark pine and Engelmann spruce.
• The whitebark pine is a keystone species in upper subalpine forests of the northern Rocky Mountains.
• The pine beetle upsurge has killed nearly 750, 000 whitebark pines in the Greater Yellowstone Ecosystem alone.
• The whitebark pine is typically the highest-elevation pine tree of these mountains, marking the tree line.
• Even a modest warming and drying could reduce whitebark pine habitat by up to 90 % within 50 years.
• In response to the ongoing decline of the tree throughout its range, the Whitebark Pine Ecosystem Foundation was formed.
• Western red cedar, larch and whitebark pine share the forest with a variety of spruce and fir tree species.
• The whitebark pine ecosystem in these high elevations plays many essential roles, providing support to plant and animal life.
• The most notable vegetation is forests of whitebark pine and meadows, krummholz, and alpine ecosystems typify the higher elevations.
• The slopes are slightly drier and are also coniferous mixed forest with whitebark pine ( " Pinus albicaulis " ).
• Restoration efforts involve harvesting cones from potentially and known resistant whitebark pines, growing seedlings, and outplanting seedlings in suitable sites.
• Foxtail pine is restricted to the southern part of the Sierra, forming pure stands where whitebark pine would dominate further north.