scholarly journals Studies of the Permian Phosphoria Formation and related rocks, Great Basin-Rocky Mountain region

1979 ◽  
Author(s):  
Bruce R. Wardlaw
Keyword(s):  
Great Basin ◽  
Rocky Mountain ◽  
Mountain Region ◽  
Rocky Mountain Region ◽  
Phosphoria Formation

Karyotypic and Evolutionary Relationships of the Yellowstone (Salmo clarki bouvieri) and West-Slope (S. c. lewisi) Cutthroat Trout

1979 ◽  
Vol 36 (6) ◽  
pp. 630-635 ◽  
Author(s):  
Eric J. Loudenslager ◽  
Gary H. Thorgaard
Keyword(s):  
Key Words ◽  
Great Basin ◽  
Cutthroat Trout ◽  
Rocky Mountain ◽  
Mountain Region ◽  
Evolutionary Relationships ◽  
Rocky Mountain Region ◽  
Coastal Cutthroat Trout ◽  
Yellowstone Cutthroat Trout ◽  
Salmo Clarki

Yellowstone cutthroat trout (Salmo clarki bouvieri) have 64 chromosomes, without any subtelocentric chromosomes, while west-slope cutthroat trout (S. c. lewisi) have 66 chromosomes, including 12 subtelocentrics. Both subspecies have 104 chromosome arms. Chromosomal similarities are apparent between the Yellowstone cutthroat and Great Basin cutthroat subspecies, and between west-slope cutthroat trout and coastal cutthroat trout. These results demonstrate that at least two distinct evolutionary lines of cutthroat trout are present in the northern Rocky Mountain region. Key words: Salmo clarki, karyotypes, Yellowstone cutthroat trout, west-slope cutthroat trout, evolutionary relationships

NOTES ON THE BIOLOGY OF THE GREAT BASIN TENT CATERPILLAR, MALACOSOMA FRAGILIS STRETCH (LEP., LASIOCAMPIDAE)

1939 ◽  
Vol 71 (3) ◽  
pp. 76-77
Author(s):  
Ralph B. Swain
Keyword(s):  
United States ◽  
Great Basin ◽  
Rocky Mountain ◽  
The United States ◽  
Mountain Region ◽  
Deciduous Trees ◽  
Rocky Mountain Region ◽  
Trees And Shrubs ◽  
Tent Caterpillar

The great basin tent-caterpillar is the most abundant form of Malacosoma found in the Rocky Mountain region of the United States. In Colorado, the species is often a serious pest of the aspen. It feeds upon a wide variety of deciduous trees and shrubs. In the foothills, Rhus trilobata and Prunus melanocarpa are frequently attacked. Whole aspen groves at higher altitudes are often defoliated by this species. In the mountains, the migrating larvae have occasionally been so numerous as to stop locomotives by greasing the rails with their crushed bodies.

Options for the management of white pine blister rust in the Rocky Mountain Region

2008 ◽  
Author(s):  
Kelly S. Burns ◽  
Anna W. Schoettle ◽  
William R. Jacobi ◽  
Mary F. Mahalovich
Keyword(s):  
Rocky Mountain ◽  
Mountain Region ◽  
White Pine Blister Rust ◽  
White Pine ◽  
Blister Rust ◽  
Rocky Mountain Region

Geophysical studies of crustal structure in the Rocky Mountain region: A review

1998 ◽  
Vol 33 (2) ◽  
pp. 217-228 ◽  
Author(s):  
G. R. Keller ◽  
C. M. Snelson ◽  
A. F. Sheehan ◽  
K. G. Dueker
Keyword(s):  
Crustal Structure ◽  
Rocky Mountain ◽  
Mountain Region ◽  
Rocky Mountain Region
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