scholarly journals Airborne electromagnetic surveys of the Cascade Range, western United States

1983 ◽  
Author(s):  
D.C. Fraser ◽  
D.B. Hoover
Keyword(s):  
United States ◽  
Cascade Range ◽  
Western United States ◽  
Airborne Electromagnetic ◽  
Electromagnetic Surveys

Interrelationships of Ledum species and their rust parasites in Western Canada and Alaska

1969 ◽  
Vol 47 (7) ◽  
pp. 1085-1100 ◽  
Author(s):  
D. B. O. Savile
Keyword(s):  
United States ◽  
British Columbia ◽  
National Park ◽  
Cascade Range ◽  
Western United States ◽  
Western Canada ◽  
Banff National Park ◽  
As Species ◽  
Specific Rank ◽  
Sympatric Zone

Ledum glandulosum extends northward from Western United States into southern British Columbia in and east of the Cascade Range and into extreme SE British Columbia and SW Alberta in the Rocky Mts. Further north, within the range of L. groenlandicum but beyond that of L. glandulosum, hybrids between the two species occur, notably in and near Banff National Park, indicating that L. glandulosum formerly extended further north. The hybrids form an irregular swarm among typical L. groenlandicum rather than a cline; for this reason, and because of numerous morphological and other distinctions, the taxa are maintained as species. L. groenlandicum and L. palustre ssp. decumbens overlap in Alaska, Yukon, and Mackenzie in a belt up to 700 miles wide. Six definite hybrids were detected out of ca. 300 specimens from the sympatric zone, and ca. 30 specimens showed signs of probable minor introgression. The marked sympatry with minimal hybridization makes it necessary to maintain L. groenlandicum at specific rank. A rust, Chrysomyxa ledicola, that freely attacks L. palustre ssp. decumbens and L. groenlandicum does not infect L. glandulosum, but it attacks the hybrids in the Banff region except those closely approaching L. glandulosum. Another rust, C. ledi, has developed morphologically distinct varieties each specialized to a single Ledum. In the Banff region hybrids have been found between C. ledi var. glandulosi and C. l. var. groenlandici on L. glandulosum × groenlandicum. C. ledi var. ledi, on L. palustre (including ssp. decumbens) is morphologically distinct from C. ledi var. groenlandici, further emphasizing the sharp distinctness of L. groenlandicum from L. palustre ssp. decumbens.

Writing Time in Metaphors

2018 ◽  
Author(s):  
Jennifer J. Smith
Keyword(s):  
United States ◽  
The United States ◽  
Western United States ◽  
Entire System ◽  
Language And Culture ◽  
Space Race ◽  
Do So

Coherence of place often exists alongside irregularities in time in cycles, and chapter three turns to cycles linked by temporal markers. Ray Bradbury’s The Martian Chronicles (1950) follows a linear chronology and describes the exploration, conquest, and repopulation of Mars by humans. Conversely, Louise Erdrich’s Love Medicine (1984) jumps back and forth across time to narrate the lives of interconnected families in the western United States. Bradbury’s cycle invokes a confluence of historical forces—time as value-laden, work as a calling, and travel as necessitating standardized time—and contextualizes them in relation to anxieties about the space race. Erdrich’s cycle invokes broader, oppositional conceptions of time—as recursive and arbitrary and as causal and meaningful—to depict time as implicated in an entire system of measurement that made possible the destruction and exploitation of the Chippewa people. Both volumes understand the United States to be preoccupied with imperialist impulses. Even as they critique such projects, they also point to the tenacity with which individuals encounter these systems, and they do so by creating “interstitial temporalities,” which allow them to navigate time at the crossroads of language and culture.

Women's Studies in the Western United States

NWSA Journal ◽  
2004 ◽  
Vol 16 (2) ◽  
pp. 180-189
Author(s):  
Karen L. Salley ◽  
Barbara Scott Winkler ◽  
Megan Celeen ◽  
Heidi Meck
Keyword(s):  
United States ◽  
Women's Studies ◽  
Western United States ◽  
Women’S Studies
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