Porcupine Quill Flatteners from Central United States

1960 ◽  
Vol 26 (1) ◽  
pp. 99-102
Author(s):  
Robert W. Neuman
Keyword(s):  
United States ◽  
South Dakota ◽  
Fourth Group ◽  
European Contact ◽  
Time Period ◽  
Central United States ◽  
North And South

AbstractQuill flatteners from Wisconsin, Minnesota, North and South Dakota, Montana, and Wyoming, which are attributed to Menominee, Sioux, Arikara, Blackfeet, and Arapaho, are described in four groups. Iron, S-shaped flatteners date from the period of European contact and trade, and two types of antler and horn flatteners are believed to have been made during the same time period. The only prehistoric or archaeological specimens are in the fourth group of flatteners made of long, thin pieces of mammal bone with rounded ends.

scholarly journals First Report of Charcoal Rot of Sunflower in Minnesota, USA

2010 ◽  
Vol 11 (1) ◽  
pp. 48
Author(s):  
T. Gulya ◽  
A. Mengistu ◽  
K. Kinzer ◽  
N. Balbyshev ◽  
S. Markell
Keyword(s):  
United States ◽  
South Dakota ◽  
Great Plains ◽  
Northern Great Plains ◽  
Charcoal Rot ◽  
Midwestern United States ◽  
First Report ◽  
High Incidence ◽  
Sunflower Crop ◽  
North And South

Charcoal rot was first observed on sunflower in North and South Dakota in 1998, and was widespread on soybeans recently in Iowa, suggesting that Macrophomina may becoming more common in cooler growing areas of Midwestern United States. With the multitude of Macrophomina hosts in the northern Great Plains and the high incidence of microsclerotia we detected in soil, high disease potential may exist, suggesting that in drier, hotter years the sunflower crop may be affected by this disease. Accepted for publication 17 May 2010. Published 7 July 2010.

Arsenic, Cadmium, Lead, Mercury, and Selenium in Sediments of Riverine and Pothole Wetlands of the North Central United States

1984 ◽  
Vol 67 (6) ◽  
pp. 1141-1146
Author(s):  
Dan B Martin ◽  
William A Hartman
Keyword(s):  
United States ◽  
South Dakota ◽  
Surface Sediments ◽  
Dry Weight ◽  
North Central ◽  
Riverine Wetlands ◽  
The North ◽  
Central United States ◽  
Cadmium Lead ◽  
Total Concentrations

Abstract Surface sediments (0-10 cm) collected in 1980 and 1981 from 13 wetland areas in Iowa, Montana, Nebraska, North Dakota, and South Dakota were analyzed for total concentrations of arsenic, cadmium, lead, mercury, and selenium. Sediments from pothole-type wetlands had significantly higher concentrations of arsenic, cadmium, lead, and selenium than those from riverine wetlands. Mean (and range) of dry weight concentrations (mg/kg) for pothole and riverine locations, respectively, were arsenic, 4.4 (1.4-9.3) and 2.4 (0.7-6.1); cadmium, 0.52 (0.17-0.87) and 0.26 (0.01-0.55); lead, 13 (7.4-22) and 6.6 (1.1- 14); selenium, 0.89 (0.13-2.1) and 0.52 (0.03-5.1). Mercury concentrations in sediment did not differ significantly between pothole and riverine type wetlands (mean, 0.03, range, 0.01-0.08). A comparison of the concentrations of elements found in this study with values reported in the literature indicated that, with the possible exception of one location, levels were within normal or background ranges.

Ozone injury to forests across the northeast and north central United States, 1994 - 2010

2012 ◽  
Author(s):  
Gretchen C. Smith ◽  
Randall S. Morin ◽  
George L. McCaskill
Keyword(s):  
United States ◽  
North Central ◽  
Ozone Injury ◽  
Central United States

Descriptive statistics of tree crown condition in the North Central United States

2010 ◽  
Author(s):  
KaDonna C. Randolph ◽  
Randall S. Morin ◽  
Jim Steinman
Keyword(s):  
United States ◽  
Descriptive Statistics ◽  
Tree Crown ◽  
Crown Condition ◽  
North Central ◽  
The North ◽  
Central United States

Floods in North and South Dakota, frequency and magnitude

1958 ◽  
Author(s):  
J.A. McCabe
Keyword(s):  
South Dakota ◽  
North And South
Sign in / Sign up

Export Citation Format

Share Document