Investigations in the Cahokia Site Grand Plaza

1993 ◽  
Vol 58 (2) ◽  
pp. 306-319 ◽  
Author(s):  
George R. Holley ◽  
Rinita A. Dalan ◽  
Philip A. Smith

Research designed to explore the Grand Plaza at the Cahokia Mounds site, the largest Mississippian-period mound center in the eastern United States, documents that plazas may yield significant information regarding Mississippian manipulation of the landscape and the initial growth of mound centers. Probing and excavation within the Grand Plaza revealed that buried ridge-swale topography, identified through an electromagnetic-conductivity survey, was stripped and then filled by the Cahokians. Excavation also corroborated the presence of deep-pit borrows identified by remote sensing. Based on the ceramics recovered from our excavations, we argue that these earth-moving events were initiated prior to the onset of the Mississippian period (ca. A.D. 1000). Reclamation of the borrowed areas resulted in the formation of the mound-plaza configuration early during the Mississippian period.

Antiquity ◽  
1996 ◽  
Vol 70 (270) ◽  
pp. 774-784 ◽  
Author(s):  
Charles H. Faulkner ◽  
Jan F. Simek

The well-protected walls and floors of deep caves are some of the few places where human markings on soft materials — sands, muds, clays — survive archaeologically. Since 1979, a special group of caves in the eastern United States has been reported with ‘mud-glyphs’ or prehistoric drawings etched in wet mud. Here, the seventh of these mud-glyph caves is described; once again, its iconography connects it to the ‘Southern Cult’ or ‘Southeast Ceremonial Complex’ of the Mississippian period.


2019 ◽  
Vol 206 ◽  
pp. 85-107 ◽  
Author(s):  
Hao He ◽  
Konstantin Y. Vinnikov ◽  
Nickolay A. Krotkov ◽  
Eric S. Edgerton ◽  
James J. Schwab ◽  
...  

2021 ◽  
pp. 1-21
Author(s):  
Erin Kennedy Thornton ◽  
Tanya Peres ◽  
Kelly Ledford Chase ◽  
Brian M. Kemp ◽  
Ryan Frome ◽  
...  

People living in Mesoamerica and what is now the eastern and southwestern United States used turkeys (Meleagris gallopavo) as sources of meat, eggs, bones, and feathers. Turkey husbandry and domestication are confirmed in two of these regions (Mesoamerica and the American Southwest), but human-turkey interactions in Eastern North American (eastern United States and Canada) are not fully explored. We apply stable isotope (δ13C, δ15N) and ancient mitochondrial DNA analyses to archaeofaunal samples from seven sites in the southeastern United States to test whether turkeys were managed or captively reared. These combined data do not support prolonged or intensive captive rearing of turkeys, and evidence for less intensive management is ambiguous. More research is warranted to determine whether people managed turkeys in these areas, and whether this is generalizable. Determining whether turkeys were managed or reared in the southeastern United States helps define cultural and environmental factors related to turkey management or husbandry throughout North America. This inquiry contributes to discussion of the roles of intensified human-animal interactions in animal domestication.


2005 ◽  
Vol 39 (9) ◽  
pp. 3269-3278 ◽  
Author(s):  
Yang Liu ◽  
Jeremy A. Sarnat ◽  
Vasu Kilaru ◽  
Daniel J. Jacob ◽  
Petros Koutrakis

2020 ◽  
Vol 110 (8) ◽  
pp. 1410-1418
Author(s):  
Coralie Farinas ◽  
Pablo S. Jourdan ◽  
Pierce A. Paul ◽  
Jason C. Slot ◽  
Margery L. Daughtrey ◽  
...  

Ornamental plants in the genus Phlox are extensively planted in landscapes and home gardens around the world. A major limitation to a more widespread use of these plants is their susceptibility to powdery mildew (PM). In this study, we used multilocus sequence typing (MLST) analysis to gain insights into the population diversity of 32 Phlox PM pathogen (Golovinomyces magnicellulatus and Podosphaera sp.) isolates collected from the eastern United States and relate it to the ability to overcome host resistance. Low genetic diversity and a lack of structure were found within our population. Whole genome comparison of two isolates was used to support low genetic diversity evidence found with the MLST analysis. Recombination was suggested by the incongruences observed in the six phylogenetic trees generated from the housekeeping genes TEF-1α, CSI, ITS, IGS, H3, and TUB. Contrasting with low genetic diversity, we found high phenotypic diversity when using 10 of the 32 isolates to evaluate host resistance in four different Phlox species (P. paniculata ‘Dunbar Creek’, P. amoena OPGC 3598, P. glaberrima OPGC 3594, and P. subulata OPGC 4185) using in vitro bioassays. We observed quantitative and qualitative resistance in all Phlox species and a consistent low disease severity in our control, P. paniculata ‘Dunbar Creek’. Taken together, the results generated in this study constitute a robust screening of popular Phlox germplasm that can be incorporated into breeding programs for PM resistance and provides significant information on the evolution of PM pathogens.


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