scholarly journals Evidence for 20th century climate warming and wetland drying in the North American Prairie Pothole Region

2013 ◽  
pp. n/a-n/a ◽  
Author(s):  
Brett A. Werner ◽  
W. Carter Johnson ◽  
Glenn R. Guntenspergen
Keyword(s):  
20Th Century ◽  
Climate Warming ◽  
North American ◽  
Prairie Pothole Region ◽  
Prairie Pothole ◽  
The North ◽  
North American Prairie

scholarly journals Climate trends of the North American prairie pothole region 1906–2000

2009 ◽  
Vol 93 (1-2) ◽  
pp. 243-267 ◽  
Author(s):  
Bruce Millett ◽  
W. Carter Johnson ◽  
Glenn Guntenspergen
Keyword(s):  
North American ◽  
Prairie Pothole Region ◽  
Prairie Pothole ◽  
Climate Trends ◽  
The North ◽  
North American Prairie

scholarly journals Board to Page to Board

2016 ◽  
Vol 10 (1) ◽  
pp. 17-31 ◽  
Author(s):  
Philip M. Winkelman
Keyword(s):  
Native American ◽  
20Th Century ◽  
American Indians ◽  
North American ◽  
Intelligent Design ◽  
Typically Develop ◽  
North American Indians ◽  
The North ◽  
Gradual Evolution

Abstract The ways new games typically develop might be viewed as a continuum ranging from very gradual “evolution” based on mutations introduced to a single progenitor during play or recall, to sudden “intelligent design” based on a purposeful and original combination — or even invention — of ludemes independent of any particular lines of transmission. This paper argues that two proprietary 20th-century games, C.A. Neves’s Fang den Hut! and Lizzie Magie’s The Landlord’s Game, were developed in a different way, a bit outside the typical continuum. It analyzes the games’ general typologies, and specific ludemes, concluding that both games are modern adaptations of traditional Native American games encountered, not through play or even contact with players, but through the seminal ethnographic publications of Stewart Culin. Specifically, Fang den Hut! derives from Boolik via Games of the North American Indians, and The Landlord’s Game derives from Zohn Ahl via Chess and Playing-Cards.

scholarly journals Hydroclimate Variability and Change in the Prairie Pothole Region, the “Duck Factory” of North America*

2014 ◽  
Vol 18 (14) ◽  
pp. 1-28 ◽  
Author(s):  
Tristan Ballard ◽  
Richard Seager ◽  
Jason E. Smerdon ◽  
Benjamin I. Cook ◽  
Andrea J. Ray ◽  
...  
Keyword(s):  
North American ◽  
Prairie Pothole Region ◽  
Coupled Model ◽  
Natural Variability ◽  
Drought Severity ◽  
Northern Great Plains ◽  
Past Century ◽  
Prairie Pothole ◽  
Evaporative Demand ◽  
The Future

Abstract The Prairie Pothole Region (PPR) of the northern Great Plains is a vital ecosystem responsible each year for producing 50%–80% of new recruits to the North American duck population. Climate variability and change can impact the hydrology and ecology of the region with implications for waterfowl populations. The historical relationship between PPR wetlands, duck populations, and seasonal hydroclimate are explored. Model experiments from phase 5 of the Coupled Model Intercomparison Project are used to determine whether a recent wetting trend is due to natural variability or changing climate and how PPR hydroclimate will change into the future. Year-to-year variations in May duck populations, pond numbers, and the Palmer drought severity index are well correlated over past decades. Pond and duck numbers tend to increase in spring following La Niña events, but the correlation is not strong. Model simulations suggest that the strengthening of the precipitation gradient across the PPR over the past century is predominantly due to natural variability and therefore could reverse. Model projections of future climate indicate precipitation will increase across the PPR in all seasons except summer, but this gain for surface moisture is largely offset by increased evapotranspiration because of higher temperatures and increased atmospheric evaporative demand. In summer, the combined effects of warming and precipitation changes indicate seasonal surface drying in the future. The presented hydroclimate analyses produce potential inputs to ecological and hydrological simulations of PPR wetlands to inform risk analysis of how this North American waterfowl habitat will evolve in the future, providing guidance to land managers facing conservation decisions.

scholarly journals Land Cover and Land Use Change in the US Prairie Pothole Region Using the USDA Cropland Data Layer

Land ◽  
2020 ◽  
Vol 9 (5) ◽  
pp. 166 ◽  
Author(s):  
Woubet G. Alemu ◽  
Geoffrey M. Henebry ◽  
Assefa M. Melesse
Keyword(s):  
Land Cover ◽  
North Dakota ◽  
Trend Analysis ◽  
Spring Wheat ◽  
Prairie Pothole Region ◽  
Prairie Pothole ◽  
The North ◽  
The Us ◽  
Data Layer ◽  
Pasture Area

The Prairie Pothole Region (PPR) is a biotically important region of grassland, wetland, and cropland that traverses the Canada-US border. Significant amounts of grasslands and wetlands within the PPR have been converted to croplands in recent years due to increasing demand for biofuels. We characterized land dynamics across the US portion of the PPR (US–PPR) using the USDA Crop Data Layer (CDL) for 2006–2018. We also conducted a comparative analysis between two epochs (1998–2007 & 2008–2017) of the CDL data time series in the North Dakotan portion of the US–PPR. The CDL revealed the western parts of the US–PPR have been dominated by grass/pasture, to the north it was spring wheat, to the east and southern half, soybeans dominated, and to the south it was corn (maize). Nonparametric trend analysis on the major crop and land cover types revealed statistically significant net decreases in the grass/pasture class between 2006 and 2018, which accounts for more than a quarter of grass/pasture area within the US–PPR. Other crops experiencing significant decreases included sunflower (-5%), winter wheat (-3%), spring wheat (-2%), and durum wheat (-1%). The combined coverage of corn and soybeans exhibited significant net increases in 23.5% of its cover; whereas, the individual significant net increases were 5% for corn and 11% for soybeans. Hotspots of increase in corn and soybeans were distributed across North and South Dakota. Other crop/land covers with huge significant increases include other hay/non-alfalfa (15%), and alfalfa (11%), which appear to be associated with the sharp increase in larger dairy operations, mostly in Minnesota. Wetland area increased 5% in the US–PPR, due to increased precipitation as well as inundation associated with Devils Lake in North Dakota. Hotspots of decreasing grass/pasture area were evident across the study area. Comparative trend analysis of two epochs (1998–2007 vs. 2008–2017) in North Dakota revealed that grass/pasture cover showed a negligible net trend (-0.3 %) between 1998 and 2007; whereas, there was a statistically significant decrease of more than 30% between 2008 and 2017. Combined coverage of corn and soybeans experienced statistically significant net increases in both epochs: 11% greater during 1998–2007 and 17% greater during 2008–2017. Recent sharp losses of grasslands and smaller wetlands combined the expansion of corn, soybeans, and alfalfa bode ill for wildlife habitat and require a re-examination of agricultural and energy policies that have encouraged these land transitions.

scholarly journals Modeling effects of crop production, energy development and conservation-grassland loss on avian habitat

2018 ◽  
Author(s):  
Jill A. Shaffer ◽  
Cali L. Roth ◽  
David M. Mushet
Keyword(s):  
North American ◽  
Energy Production ◽  
Crop Production ◽  
The United States ◽  
Prairie Pothole ◽  
Bird Abundance ◽  
Grassland Bird ◽  
The North ◽  
Essential Components ◽  
Bird Habitat

AbstractBirds are essential components of most ecosystems and provide many services valued by society. However, many populations have undergone striking declines as habitats have been lost or degraded by human activities. Terrestrial grasslands are vital habitat for birds in the North American Prairie Pothole Region (PPR), but grassland conversion and fragmentation from agriculture and energy-production activities have destroyed or degraded millions of hectares. Conservation grasslands can provide alternate habitat. In the United States, the Conservation Reserve Program (CRP) is the largest program maintaining conservation grasslands on agricultural lands, but conservation grasslands in the PPR have declined by over 1 million ha since the program’s zenith in 2007. We used an ecosystem-services model (InVEST) parameterized for the PPR to quantify grassland-bird habitat remaining in 2014 and to assess degradation status of this remaining habitat as influenced by crop and energy (i.e., oil, natural gas, and wind) production. We compared our resultant habitat-quality ratings to grassland-bird abundance data from the North American Breeding Bird Survey to confirm that ratings were related to grassland-bird abundance. Of the grassland-bird habitat remaining in 2014, about 18% was degraded by nearby crop production, whereas energy production degraded an additional 16%. We further quantified changes in availability of grassland-bird habitat under various land-cover scenarios representing incremental losses (10%, 25%, 50%, 75%, and 100%) of CRP grasslands from 2014 levels. Our model identified 1 million ha (9%) of remaining grassland-bird habitat in the PPR that would be lost or degraded if all CRP conservation grasslands were returned to crop production. In addition to direct losses, an economic climate favoring energy and commodity production over conservation has resulted in substantial degradation of remaining grassland-bird habitat across the PPR. Other grassland regions of the world face similar challenges in maintaining avian habitat.

Can the North American Model of Ethnicity Be Applied to Europe ? The German Example

2004 ◽  
Vol 25 (1) ◽  
pp. 41-76
Author(s):  
Susanne von Below ◽  
Mathias Bös ◽  
Lance W. Roberts
Keyword(s):  
20Th Century ◽  
North American ◽  
The Self ◽  
Self Perception ◽  
The North ◽  
American Model ◽  
Group Structures

In the last decade of the 20th century, the self-perception of many continental European nations has shifted dramatically. Terms like diversity, multiculturalism and, last but not least, ethnicity are increasingly used to describe group structures and inequalities in these countries. This is especially surprising in the case of Germany. In sociological folklore, Germany epitomizes a nation which sees itself as an ethnically homogeneous people (among many see Brubaker 1992).

scholarly journals Franz Boas’ Postulate of the Warfare Origin of Secret Societies and Myths about the “Culture Heroˮ and the “Tricksterˮ in North America

2021 ◽  
Vol 16 (1) ◽  
pp. 19-48
Author(s):  
Dragana Jeremić Molnar ◽  
Aleksandar Molnar
Keyword(s):  
North America ◽  
20Th Century ◽  
American Indians ◽  
North American ◽  
Secret Society ◽  
Secret Societies ◽  
Franz Boas ◽  
North American Indians ◽  
The North

In this paper, the authors argue that Franz Boas had a coherent theory of the secret society, which he did not systematically develop anywhere, but which can be reconstructed from several of his works. The authors are not dealing with the whole theory, but only with the postulate of the warfare origin of secret societies (which later became the foundation of the Männerbund theory). Namely, Boas believed that the secret societies of the North American Indians were originally warlike, but that by the beginning of the 20th century they either retained only the functions of initiation and education, or were transformed into therapeutic and dance societies. Although he claimed that the mythology of the Indians did not provide additional insights into the origins of secret societies, his dealings with the myth of the “culture heroˮ and the “tricksterˮ proved the contrary. The authors try to go a step further and find new contributions for the study of the origins of secret societies in North America in the myth of Wolf as the brother (father) of the “culture hero.ˮ

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