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Articles 1 - 16 of 16
Full-Text Articles in Social and Behavioral Sciences
Determining Public Perceptions Toward Wildland Fire In The Veluwe Region Of The Netherlands, Amy Brennan
Determining Public Perceptions Toward Wildland Fire In The Veluwe Region Of The Netherlands, Amy Brennan
Electronic Theses and Dissertations
The Netherlands has been facing a growing threat of wildfires due to warmer
and drier weather patterns. The purpose of this study was to identify public
perceptions toward wildland fire in the forested Veluwe region of the country. The
Dutch have little experience with wildland fires or fire as a management tool. In a
collaborative effort between Stephen F. Austin State University and the Instituut
Fysieke Veiligheid, the Dutch public safety agency, a survey was distributed to
residents and visitors to the Veluwe to reveal and quantify public opinions and
perceptions regarding wildland fire and public expectations of government
agencies …
Social Ecological Food Systems: Sustainability Lessons From Maine Dairy Networks, Julia B. Mcguire
Social Ecological Food Systems: Sustainability Lessons From Maine Dairy Networks, Julia B. Mcguire
Electronic Theses and Dissertations
Milk production has played an integral role in the culture, landscape, and economy of Maine’s agriculture. Maine dairy farmers have faced numerous sustainability challenges to economic, environmental, and social aspects of their industry. Like many other complex social ecological systems, the Maine dairy industry faces a gap between scientific knowledge and actionable management or policy. A cultural dichotomy exists between conventional and organic farming. Shifting the focus from this binary, metrics such as social capital may play a key role in solving sustainability issues. Difficulties arise in the governance of complex social ecological systems when the scales of assessment, management, …
Effect Of Migration, Carrying Capacity, And Fecundity On The Formation Of Clinal Patterns During Range Expansions., Neha J. Angal
Effect Of Migration, Carrying Capacity, And Fecundity On The Formation Of Clinal Patterns During Range Expansions., Neha J. Angal
Electronic Theses and Dissertations
Range expansions, empirically and in simulations, lead to clinal patterns of genetic diversity. Clines are often used as spatial markers of past migrations. This study investigated the effects of migration, growth, and carrying capacities on clinal patterns during range expansions, using forward-time simulations in Nemo. Initial results show, in the absence of prior population structure, range expansions result in a loss of diversity strongly affected by migration, growth, and carrying capacity. This loss of diversity did not persist to the final generation, corresponding to 10,000 years, indicating clinal patterns are less durable than previously assumed—challenging the utility of clinal patterns …
Social And Ecological Factors Affecting The Adoption Of Aquaculture, Karen Pianka
Social And Ecological Factors Affecting The Adoption Of Aquaculture, Karen Pianka
Electronic Theses and Dissertations
Commercial fishermen in Maine are increasingly dependent upon the American lobster fishery, and this reliance on a single species poses a threat to working waterfronts. Aquaculture represents a potential opportunity for commercial fishermen to diversify their income. Literature on the adoption of innovation suggests that factors such as age, education level, fishing experience, diversification, and leadership are important predictors of early adoption of innovation. However, few studies have examined whether such factors affect the adoption of aquaculture by commercial fishermen. Our marine policy research studied fishermen enrolled in two pilot shellfish and seaweed aquaculture classes held in 2013 in Harpswell …
Comparison Of Two Body Weight Screenings Of Self-Conscious Emotions And Coping, Rachel N. Nanez Ms.
Comparison Of Two Body Weight Screenings Of Self-Conscious Emotions And Coping, Rachel N. Nanez Ms.
Electronic Theses and Dissertations
Novel technologies are currently being utilized in fitness and clinical settings. However, there is not much research to examine the emotional responses to such screenings.
PURPOSE: To examine the group differences between the FIT3D and DXA protocol on emotional responses and the differences between weight classifications.
METHODS: The Body and Appearance-related Self-conscious Emotions Scale and WEIGHTCOPE were used to assess self-conscious emotions and intention to utilize 10 different weight-related coping strategies following the scans. Motivation was measured by a 10-point Likert scale measuring motivation pre and post scans.
RESULTS: There were no differences in motivation, affective response, or intention to …
Sources Of Ecologically Important Trait Variation In Mosquitofish (Gambusia Affinis And Gambusia Holbrooki), Heather Ann Arnett
Sources Of Ecologically Important Trait Variation In Mosquitofish (Gambusia Affinis And Gambusia Holbrooki), Heather Ann Arnett
Electronic Theses and Dissertations
The study of contemporary evolution and eco-evolutionary dynamics is classically defined in terms of genetic evolution, but the actual suite of processes driving contemporary trait change is likely much more complex than often credited. This dissertation considers additional mechanisms of trait change that might be important to an emerging model system for study of contemporary evolution and eco-evolutionary dynamics. Specifically, the research focuses on phenotypically plastic and demographic trait variation in Eastern and Western Mosquitofish (Gambusia affinis and G. holbrooki) facing the major ecological gradient of predation risk. Plasticity experiments employed a common-garden rearing design to manipulate fish …
Temporal And Spatial Influences On South Dakota Farm Economies Of Size, Henry Brown
Temporal And Spatial Influences On South Dakota Farm Economies Of Size, Henry Brown
Electronic Theses and Dissertations
Census of Agriculture data are evaluated to test for economies of size of South Dakota farms. Economies of size occur when per-unit costs decrease as the size of a firm increases. This research measures technical economies of size, which assume that all firms pay identical input prices and receive identical output prices. The dependent variable of the model is expenses per dollar of sales. This is a typical measure of efficiency in agricultural statistics. The data come from the four prior Census of Agriculture years, 1997, 2002, 2007, and 2012. A state-wide model and a county-wide model were developed to …
Relationship Of Grain Stocks And Farmer Marketings, Tyler Holmquist
Relationship Of Grain Stocks And Farmer Marketings, Tyler Holmquist
Electronic Theses and Dissertations
This research explores the relationship between quarterly grain stocks and monthly grain marketings. Reviewing when, how, and why stocks move from on-farm and off-farm inventories, an interpretation of quarterly commodity disappearance and crop marketings is formed. An explanatory model is first developed for farmer marketings, where price expectations are used to assess market signals to change ownership of crops. The model is applied to South Dakota corn, soybeans, and wheat from 1985 through 2015. The subsequent analysis contributes to a model that explains quarterly changes in stocks in terms of supply levels and the expected effect from marketings on disappearance. …
Differences In Running Mechanics Between Overweight/Obese And Healthy Weight Children, Kristen Roles
Differences In Running Mechanics Between Overweight/Obese And Healthy Weight Children, Kristen Roles
Electronic Theses and Dissertations
Background/Purpose: Physical activity is commonly prescribed to reduce childhood obesity. However, due to differences in mechanics during low-impact activities, such as walking, obese children may be more prone to negative physical complications during high-impact activities, such as running. Therefore, this study analyzed the mechanical differences in running mechanics between healthy weight (HW) and overweight/obese (OV/OB) children. We hypothesized that when compared to HW children, OV/OB children would display higher vertical loading, greater joint moments and greater joint angular impulses during running. We also expect decreased sagittal plane range of motion and increased frontal plane range of motion of the hip, …
Influencers And Barriers To Consumption Of Healthful Diets In Rural Youth In Context Of The Bioecological Model, Megan Bren
Electronic Theses and Dissertations
The purpose of this study is to determine influencers and barriers to healthful dietary intake in rural youth in context of the bioecological model. Four focus groups as part of Ignite, a tri-state, five-year, community based partipatory research (CBPR) intervention were conducted with 6th to 8th grade adolescents from an economically disadvantaged community of rural South Dakota. Results were categorized into the context of the bioecological model. Within the model, the process, person, context and time (PPCT) design with the three types of personal characteristics were used to describe the framework in which the systems are embedded. Focus group content …
Attitude Comparison Among South Dakota Family Members Regarding Estate Planning And Farm Transitions, Heather Gessner
Attitude Comparison Among South Dakota Family Members Regarding Estate Planning And Farm Transitions, Heather Gessner
Electronic Theses and Dissertations
Estate planning and intergenerational farm transitions are the focus of research and extension programs across the nation due to the potential tax consequences faced by farm operations, retirement funding options available and utilized by farmers, changes in asset transition tools available, and communication (or lack of communication) issues related to bringing an heir back to the family operation.
Past plans for research projects and extension programming developed across the nation and in South Dakota (SD), were created with many assumptions regarding the attitudes of farm family members towards the transition of ownership of the operational assets and personal assets of …
Effects Of Visitors And Enrichments On Behavior Of Captive Red Wolves’ (Canis Rufus) At The Great Plains Zoo, Sioux Falls, South Dakota, Kylee S. Shotkoski
Effects Of Visitors And Enrichments On Behavior Of Captive Red Wolves’ (Canis Rufus) At The Great Plains Zoo, Sioux Falls, South Dakota, Kylee S. Shotkoski
Electronic Theses and Dissertations
Red wolves (Canis rufus) are the first animals to maintain a wild population from captive, released individuals. A captive breeding program for red wolves was started before complete extirpation, and 4 breeding pairs were released in Alligator River National Wildlife Refuge (North Carolina) in 1987 and a small wild population still exists there. Currently, there are several captive breeding facilities for red wolves within the Species Survival Plan (SSP) program. The Great Plains Zoo in Sioux Falls, South Dakota participates in the SSP program. My study was initiated to create a natural history background and evaluate interaction between …
The Spatial Distribution Of Terrestrial Stable Carbon Isotopes In North America, And The Impacts Of Spatial And Temporal Resolution On Static Ecological Models, Sydney M. Firmin
The Spatial Distribution Of Terrestrial Stable Carbon Isotopes In North America, And The Impacts Of Spatial And Temporal Resolution On Static Ecological Models, Sydney M. Firmin
Electronic Theses and Dissertations
Due to the unique spatial and temporal characteristics of ecological phenomena, the extent and grain size of spatial data sets essentially filter the observations. This thesis examines the impacts of temporal and spatial resolution on the modeling of terrestrial stable carbon isotopic landscapes (isoscapes). I model the distribution of leaf stable carbon isotope composition (delta13C) for the continent of North America at multiple temporal and spatial resolutions. I generate each delta13C isoscape variation by first predicting the relative abundance of C3/C4 vegetation cover using monthly climate grids, crop distribution/type grids, and remote sensing data of plant …
Investigating Grassland And Cropland Conversion Decisions In The Dakotas, 2015 Producers Survey And Analysis, Md Niaz Murshed Chowdhury
Investigating Grassland And Cropland Conversion Decisions In The Dakotas, 2015 Producers Survey And Analysis, Md Niaz Murshed Chowdhury
Electronic Theses and Dissertations
This study investigates grassland and cropland conversion decisions in the Dakotas. Data from a 2015 survey completed by 1,026 producers located in 57 counties of the Prairie Pothole Region (PPR) were used to evaluate land conversions. This thesis attempts to identify the land use conversion incidence and rate (grass to crop and crop to grass); the link between past and projected land use conversion decisions in the Dakotas, and determinants of land use conversion using different statistical tools, including logistic regression methods. A regional analysis of converted acres reveals that the grass to crop conversion rates (as percent of 2014 …
Evaluation Of Bison (Bison Bison) Ecology At The Olson’S Bison Conservation Ranches, Pine River Ranch, Manitoba, Canada, Joshua L. Leonard
Evaluation Of Bison (Bison Bison) Ecology At The Olson’S Bison Conservation Ranches, Pine River Ranch, Manitoba, Canada, Joshua L. Leonard
Electronic Theses and Dissertations
Bison (Bison bison), the largest mammalian species in North America, historically numbering in the tens of millions (Roe 1970, McHugh 1972, Dary 1989, Shaw 1995), was nearly extirpated at the turn of the 19th century (Knapp et al. 1999; Gates et al. 2010). At the time, estimates of less than 1,000 bison remaining in North America are widely accepted (Hornaday 1889; Seton 1927; Gates et al. 2010). The decline of bison includes factors such as disease (Flores 1991; Isenberg 2000), sport hunting (Danz 1997; Dary 1989; Hewitt 1919; Isenberg 2000; McHugh 1972), and unofficially funded commercial hunting by the U.S. …
Developing Management Guidelines That Balance Cattle And Timber Production With Ecological Interests In The Black Hills Of South Dakota, Kurt M. Chowanski
Developing Management Guidelines That Balance Cattle And Timber Production With Ecological Interests In The Black Hills Of South Dakota, Kurt M. Chowanski
Electronic Theses and Dissertations
Forested lands contribute to the United States (US) economy by providing livestock and timber production. Livestock grazing of forested lands has been widespread throughout the western US since the settlement era, and currently occurs on 51.4 million hectares (ha) representing 16% of all US grazing land and 22% of all US forested land (Nickerson et al. 2011). While livestock grazing and timber harvest are occurring on a substantial amount of forested land, relationships between management practices, tree stocking, timber production, forage production, livestock grazing, wildlife, aesthetics, and ecological integrity are not well documented. Whether considering timber or cattle, finding a …