A Comparison of Fire Regimes and Stand Dynamics in Whitebark Pine (Pinus albicaulis) Communities in the Greater Yellowstone Ecosystem
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Complex Challenges of Maintaining Whitebark Pine in Greater Yellowstone under Climate Change: A Call for Innovative Research, Management, and Policy Approaches
Climate suitability is projected to decline for many subalpine species, raising questions about managing species under a deteriorating climate. Whitebark pine (WBP) (Pinus albicaulis) in the Greater Yellowstone Ecosystem (GYE) crystalizes the challenges that natural resource managers of many high mountain ecosystems will likely face in the coming decades. We review the system of interactions am...
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Whitebark Pine (Pinus albicaulis) plays an integral role in the Greater Yellowstone Ecosystem (GYE). It has been often referred to as a keystone species due to the extensive changes that the ecosystem would undergo if the species were to be lost. Attributed to white pine blister rust (Cronartium ribicola) infection and mountain pine beetles (Dendroctonus ponderosae), the decline of the whitebar...
متن کاملSeed predation and selection exerted by a seed predator influence subalpine tree densities.
Strongly interacting species often have pronounced direct and indirect effects on other species. Here we focus of the effects of pine squirrels (Tamiasciurus spp.), which are a dominant pre-dispersal seed predator of many conifers including limber pines (Pinus flexilis) and whitebark pines (P. albicaulis). Pine squirrels depress seed abundance by harvesting most limber and whitebark pine cones ...
متن کاملClark’s Nutcracker Breeding Season Space Use and Foraging Behavior
Considering the entire life history of a species is fundamental to developing effective conservation strategies. Decreasing populations of five-needle white pines may be leading to the decline of Clark's nutcrackers (Nucifraga columbiana). These birds are important seed dispersers for at least ten conifer species in the western U.S., including whitebark pine (Pinus albicaulis), an obligate mutu...
متن کاملAn ecosystem-scale model for the spread of a host-specific forest pathogen in the Greater Yellowstone Ecosystem.
The introduction of nonnative pathogens is altering the scale, magnitude, and persistence of forest disturbance regimes in the western United States. In the high-altitude whitebark pine (Pinus albicaulis) forests of the Greater Yellowstone Ecosystem (GYE), white pine blister rust (Cronartium ribicola) is an introduced fungal pathogen that is now the principal cause of tree mortality in many loc...
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تاریخ انتشار 2015