Sustaining Pinus flexilis ecosystems of the southern Rocky Mountains (USA) in the presence of Cronartium ribicola and Dendroctonus ponderosae in a changing climate
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چکیده
J a m e s , i s c h a r a c t e r i z e d b y a p a t c h y d i s t r i b u t i o n t h a t d i s p l a y s m e t a p o p u l a t i o n d y n a m i c s a n d s p a n s a b r o a d l a t i t u
منابع مشابه
Fire and High-Elevation, Five-Needle Pine (Pinus aristata & P. flexilis) Ecosystems in the Southern Rocky Mountains: What Do We Know?
Rocky Mountain bristlecone pine (Pinus aristata Engelm) and limber pine (P. exilis James) are high-elevation, veneedle pines of the southern Rocky Mountains. e pre-settlement role of re in bristlecone and limber pine forests remains the subject of considerable uncertainty; both species likely experienced a wide range of re regimes across gradients of site productivity and connectivity of fuels...
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Exotic tree pathogens can cause devastating ecological effects on forests that can be exacerbated when infections increase the likelihood of attack by insects. Current high rates of mortality of whitebark pine (Pinus albicaulis Engelm.) are due to white pine blister rust caused by the exotic fungus, Cronartium ribicola J.C. Fisch, and the native mountain pine beetle (Dendroctonus ponderosae Hop...
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Drought and mountain pine beetle (Dendroctonus ponderosae Hopkins) outbreaks have affected millions of hectares of high-elevation conifer forests in the Northern Rocky Mountains during the past century. Little research has examined the distinction between mountain pine beetle outbreaks and climatic influence on radial growth in endangered whitebark pine (Pinus albicaulis Engelm.) ecosystems. We...
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Rocky Mountain bristlecone pine (Pinus aristata) and limber pine (Pinus flexilis) are important highelevation pines of the southern Rockies that are forecast to decline due to the recent spread of white pine blister rust (Cronartium ribicola) into this region. Proactive management strategies to promote the evolution of rust resistance and maintain ecosystem function require an improved understa...
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In stressful environments, facilitation often aids plant establishment, but invasive plant pathogens may potentially disrupt these interactions. In many treeline communities in the northern Rocky Mountains of the U.S. and Canada, Pinus albicaulis, a stress-tolerant pine, initiates tree islands at higher frequencies than other conifers - that is, leads to leeward tree establishment more frequent...
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