Showing papers by "Augustana College (Illinois) published in 1983"
TL;DR: Results are in agreement with the idea that organic carbon becomes enriched in 13C as it passes through a food chain.
Abstract: Stable carbon isotope techniques were employed to study the food habits of the termite Macrotermes michaelseni (Isoptera: Termitidae) in a semiarid savanna habitat in Kenya. At Kajiado this species utilized approximately 70% herbaceous vegetation (mostly grass) and 30% woody vegetation, while at Ruiru approximately 64% of the vegetation utilized was woody and 36% herbaceous. Stabel carbon isotope ratios varied between castes within sites, but were consistent with the manner in which carbon flows through termite colonies. δ(13)C values increased in the sequence: diet→fungus comb→nonreproductive castes→reproductive castes. These results are in agreement with the idea that organic carbon becomes enriched in (13)C as it passes through a food chain.
110 citations
TL;DR: This article identified stable components of Type A behavior as usually defined, and examined their relationships with more traditional psychological constructs, finding that the most popular Type A measure (a version of the Jenkins Activity Survey) were moderately associated with ambition but largely unrelated to measures of adjustment.
46 citations
TL;DR: Finnish immigrants have frequently been cited as the most politically radical ethnic group in America during the first three decades of the twentieth century, as indicated by the support they provided to the major left-wing organizations of the time as mentioned in this paper.
Abstract: Finnish immigrants have frequently been cited as the most politically radical ethnic group in America during the first three decades of the twentieth century, as indicated by the support they provided to the major left-wing organizations of the time. However, by 1945 this tendency was dissipating. Although political repression and nativist asperity were significant factors in undermining the left, they do not fully account for the downfall of leftist support. This article examines four other major factors: 1) the Bolshevization of the American left; 2) mass emigration to the Soviet Union; 3) the erosion of the ethnic community; and 4) the emergence of the "New American Society".
9 citations
TL;DR: In this article, the authors described upland Plains Village archaeological sites in Central South Dakota located by pedestrian survey in terms of physiography and vegetation and served to define the universe of sites available for habitation along the east bank of the Missouri River/Lake Francis Case Reservoir.
Abstract: Upland Plains Village archaeological sites in Central South Dakota located by pedestrian survey were described in terms of physiography and vegetation. Randomly selected, non-archaeological sites were similarly described and served to define the universe of sites available for habitation along the east bank of the Missouri River/Lake Francis Case Reservoir. Physiographic differences between actual and “simulated” archaeological sites suggested that several factors were important in predicting the location of upland archaeological sites. These included location in Agropyron smithii dominated plant communities with less than 5° of slope, and southern exposure. The model accounts for nearly 70 per cent of all variability associated with location and distribution of archaeological sites.
2 citations