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Preliminary Assessment Of Sand Dune Stability Along A Bioclimatic Gradient, North Central And Northwestern Oklahoma, Carlos Cordova, Jess Porter, Kenneth Lepper, Regina Kalchgruber, Gregory Scott
Preliminary Assessment Of Sand Dune Stability Along A Bioclimatic Gradient, North Central And Northwestern Oklahoma, Carlos Cordova, Jess Porter, Kenneth Lepper, Regina Kalchgruber, Gregory Scott
Great Plains Research: A Journal of Natural and Social Sciences
Sandhills of eolian origin and currently active dunes in Oklahoma are located mainly on the northern side of the main rivers. Their longitudinal distribution spans a gradient of annual precipitation ranging from 914 mm in the east to 403 mm in the west. Vegetation types along this gradient include cross-timbers woodlands in the east and sand-sage and short grasses in the west. The information presented here is a preliminary assessment of sand dune dynamics and morphology, soils, and vegetation as the basis for an ongoing study on past and present processes of sand dune stability. For this purpose, six areas …
Family Predictors Of Well-Functioning Midwestern Adolescents, Douglas A. Abbott, Scott Hall, William Meredith
Family Predictors Of Well-Functioning Midwestern Adolescents, Douglas A. Abbott, Scott Hall, William Meredith
Great Plains Research: A Journal of Natural and Social Sciences
The purpose of our project was to investigate well-functioning adolescents to identify familial influences that may account for their positive developmental outcomes and healthy life choices. A family systems perspective was used to conceptualize this project. More than 300 teenagers were surveyed about family influences on adolescent outcomes. Results indicated that teen religiosity, parental warmth, parental monitoring, and a low occurrence of stressful life events were related to teen depression, participation in risky behaviors, and parental-teen conflict. General conclusions were drawn about the importance of the family environment on teen behavior and the usefulness of a systems point of view …
Optimum Windbreak Spacing In Great Plains Agriculture, Glenn A. Helmers, James Brandle
Optimum Windbreak Spacing In Great Plains Agriculture, Glenn A. Helmers, James Brandle
Great Plains Research: A Journal of Natural and Social Sciences
Integer programming techniques were used to determine the optimal windbreak pattern for corn and soybean production over a 70-year planning horizon. Field windbreaks provide numerous benefits to agricultural producers, including increased crop yields, erosion control, and wildlife habitat. However, windbreaks involve costs of establishment, maintenance, removal, localized yield reductions, and a loss of income resulting from cropland dedicated to windbreaks. As with any farm investment, windbreaks must be economically viable if they are to be adopted by producers. In addition to the direct costs of establishment, maintenance, and removal, yield increases must be large enough to replace opportunity costs of …
Language Skills Of Elementary-Aged Children With Emotional And Behavioral Disorders, Gregory Benner
Language Skills Of Elementary-Aged Children With Emotional And Behavioral Disorders, Gregory Benner
Great Plains Research: A Journal of Natural and Social Sciences
A cross-sectional design was used to assess the language skills and prevalence of language disorders among 84 randomly selected public school children (K-5) receiving special education services for emotional and behavioral disorders (EBD). The mean receptive language standard score fell in the nonclinical range, whereas the mean total and expressive standard scores fell in the clinical range. The prevalence rates of total, expressive, and receptive disorders among children with EBD were 54%, 55%, and 42%, respectively. Approximately two-thirds of children experienced a language disorder (i.e., total, expressive, and/or receptive). Half of those experiencing a language disorder met clinical criteria in …
Great Plains Research 15:2 (Fall 2005) - Frontmatter
Great Plains Research 15:2 (Fall 2005) - Frontmatter
Great Plains Research: A Journal of Natural and Social Sciences
Frontmatter
Breeding Bird Communities In Riparian Forests Along The Central Platte River, Nebraska, Craig Davis
Breeding Bird Communities In Riparian Forests Along The Central Platte River, Nebraska, Craig Davis
Great Plains Research: A Journal of Natural and Social Sciences
The Platte River has changed from a nearly treeless prairie river to a heavily forested river. These habitat changes have likely benefited many woodland birds, but have harmed other migratory birds such as cranes. In response to this impact on migratory birds, conservation groups implemented a tree-clearing program to enhance habitat for these species. This practice is not without controversy because of concerns about its effect on woodland birds. The goal of this study was to determine the composition and abundance of breeding birds that use these forests and discuss the potential impacts of tree clearing on woodland birds. Surveys …
Assessing The Economic Development Of Nature Tourism, Nancy Hodur, F. Larry Leistritz, Kara Wolfe
Assessing The Economic Development Of Nature Tourism, Nancy Hodur, F. Larry Leistritz, Kara Wolfe
Great Plains Research: A Journal of Natural and Social Sciences
Nature tourism is increasingly being considered as an economic development opportunity for rural areas of the Great Plains. As rural communities seek to develop nature tourism, questions regarding the attributes and interests of the nature tourist arise. This study sought to address these questions through a survey of participants at a birding festival held in central North Dakota in June 2004. The festival participants were predominately from outside the local area, and most of these visitors were from out of state. The festival participants were middle-aged and highly educated, and had relatively high income. The visitors spent an average of …
Availability Of Suitable Habitat For Northern River Otters In South Dakota, Alyssa M. Kiesow, Charles D. Dieter
Availability Of Suitable Habitat For Northern River Otters In South Dakota, Alyssa M. Kiesow, Charles D. Dieter
Great Plains Research: A Journal of Natural and Social Sciences
Currently, the northern river otter (Lontra canadensis) is listed as a threatened species in South Dakota. We determined whether adequate habitat was available for reintroducing river otters in South Dakota. The 17 rivers/creeks included in the analysis were selected according to stream size, water gradient, and water permanence. A vegetation transect was conducted and a water sample was collected at each study site, ranging from one to four per river. Rivers/creeks were rated (1 = least suitable to 5 = most suitable) according to habitat requirements of river otters in the following categories: stream characteristics, watershed features, water …
Predictors Of Earnings For Mexican Americans In The Midwest, Rosalie Torres Stone, Bandana Purkayastha
Predictors Of Earnings For Mexican Americans In The Midwest, Rosalie Torres Stone, Bandana Purkayastha
Great Plains Research: A Journal of Natural and Social Sciences
Much of the research on Mexican Americans and earnings has focused on either national samples or on states such as California and Texas. Even though Mexican Americans have become more visible in the Midwest, we know very little about their earnings in the Midwest. Using an individual level sample consisting of data on 1,807 Mexican Americans from the 2000 Integrated 1% Public Use Microdata Series, we examine the extent to which human capital, family status and industry concentration predict earnings. Multivariate analyses reveal that education and years in the U.S. are positively associated with earnings. However, Mexican American women yield …
Potential Ecological Impact Of Diet Selectivity And Bison Herd Composition, Claudia Rosas, David Engle, James Shaw
Potential Ecological Impact Of Diet Selectivity And Bison Herd Composition, Claudia Rosas, David Engle, James Shaw
Great Plains Research: A Journal of Natural and Social Sciences
Behavioral segregation between the sexes of bison (Bas bison), coupled with artificially manipulated sex ratios of bison herds, might profoundly influence prairie ecosystems. Therefore, we measured carbon isotopes in hair collected from bison from the Tallgrass Prairie Preserve in northeast Oklahoma to determine if adult male, adult female, and juvenile bison segregate on the basis of botanical composition of their diet. Sex ratio of bison herds in the Great Plains and behavioral differences between sexes were used to assess potential effects of sex ratio on tallgrass prairie. Botanical composition of diet differed among the three bison groups, in …
Evidence Of Holocene Climate Change In A Nebraska Sandhills Wetland, Barbara Nicholson, James B. Swinehart
Evidence Of Holocene Climate Change In A Nebraska Sandhills Wetland, Barbara Nicholson, James B. Swinehart
Great Plains Research: A Journal of Natural and Social Sciences
The Nebraska Sandhills consist of 50,000 km2 of dunes, currently stabilized by vegetation. Radiocarbon dates of paleosols, blocked paleovalleys, and sand beds found in interdunal wetlands suggest that the Holocene had significant periods of dune reactivation. A paleoecological investigation was conducted in Jumbo Valley, NE, in an interdunal wetland known to contain sand layers interbedded with peat. The sedimentary record in two cores is continuous, except for some loss due to surficial burns. Macrofossils indicate that the late Pleistocene was cool and wet, with current vegetation establishing around 12,000 years ago. Sand and bulk density profiles reveal significant periods …
Review Of Eighteenth-Century Naturalists Of Hudson Bay By Stuart Houston, Tim Ball, And Mary Houston, Greg Michalenko
Review Of Eighteenth-Century Naturalists Of Hudson Bay By Stuart Houston, Tim Ball, And Mary Houston, Greg Michalenko
Great Plains Research: A Journal of Natural and Social Sciences
Eighteenth-Century Naturalists of Hudson Bay by Stuart and Mary Houston, veteran Saskatchewan ornithologists and historians of northern Canadian exploration, and climatologist Tim Ball provides a welcome, colorful addition to McGill-Queen's University Press's thirty-four-volume Native and Northern Series.
The 1670 Crown charter to the Hudson's Bay Company (HBC) granted a vast trading territory including substantial parts of the northern Canadian Plains and a portion of North Dakota and Minnesota. Furs were brought from a network of posts for shipping out of Hudson Bay, primarily at Fort Churchill and York Factory. Most of the posts and their commercial activities were outside of …
Great Plains Research, Volume 15, Number 1, Spring 2005 - Editorial Matter
Great Plains Research, Volume 15, Number 1, Spring 2005 - Editorial Matter
Great Plains Research: A Journal of Natural and Social Sciences
No abstract provided.
Distribution Of Carnivore Burrows In A Prairie Landscape, Glennis Kaufman, Scott Kocher, Donald Kaufman
Distribution Of Carnivore Burrows In A Prairie Landscape, Glennis Kaufman, Scott Kocher, Donald Kaufman
Great Plains Research: A Journal of Natural and Social Sciences
Mammals impact prairie ecosystems through burrowing activities. Burrows used by carnivores were studied in four habitat types at the Konza Prairie Biological Station, a native tallgrass prairie near Manhattan, KS. We surveyed nearly 40 km of l0-m-wide transects and counted burrows in upland, slope, and lowland prairie and along ravines. Burrows were placed selectively along slopes (7.3 per km) and to a lesser extent along edges of ravines (4.2), but only infrequently in upland (0.6) and never in lowlands (0.0). We also recorded features (e.g., location, aspect, and slope steepness) along slope transects at a 30 m intervals to estimate …