The decline of whitebark pine nut due to the inadvertent introduction by man of the invasive, virulent fungi " Cronartium ribicola " has in turn required grizzlies to seek alternate food sources, many of which are carnivorous.
12.
It is moderately susceptible to white pine blister rust ( " Cronartium ribicola " ), but in cultivation has proved somewhat less susceptible than most other American white pines ( see e . g . western white pine, sugar pine ).
13.
At a microclimate scale, lower trees hidden below the canopy exist in a lower temperature and moister environment, and as a result, these young trees are more susceptible to " Cronartium ribicola " than the older, taller trees that create the canopy, which consequently have more access to the warm, dry sun.
14.
He worked as a waiter at a women s college; had the responsibility of counting seeds and correct mistakes in the inventory records at the University s herbarium, where he was recognized for his knowledge about plants; and during summers he had a job at the Oregon Bureau of Land Management and the Forest Service, working inside Oregon s forests with the management of a fungal disease that affects white pine, the white pine blister rust ( " Cronartium ribicola " ).
