Open Research Oklahoma
ORO serves as the home for Oklahoma State University's open-access intellectual output. It includes digital dissertations, faculty publications, OSU Extension publications, undergraduate research, open educational resources, and more. Email openresearch@okstate.edu to see how your Oklahoma-based institution can join.
Recent Submissions
Publication Effects of eastern redcedar encroachment on forest fire dynamics in upland oak forests(Oklahoma State University, 2025-04-22)Before the 20th century, Native Americans maintained The Cross Timbers ecoregion, and frequent but low-intensity fires dominated it. During the 20th century, as land became increasingly occupied and sectioned off by settlers, fire exclusion and suppression became a common practice and due to this, a process called mesophication began to occur. Shade-tolerant tree species are able to outcompete the shade-intolerant and fire-adapted ones, eventually resulting in an altered, wetter soil composition, which will change the species present and completely alter or disrupt an ecosystem. Grassland researchers have recorded the impact of eastern redcedar on fire, but the effects on forested ecosystems are mostly unstudied. The rapid increase of eastern redcedar in the Cross Timbers has made it imperative to be wise to its functions and interactions on fire systems. Utilizing prescribed fire, our team studied how the increased frequency of eastern redcedar altered forest fire behavior. It was hypothesized a large factor at play would be fuel moisture. During the initial study, our team looked at the effect of eastern redcedar prominence and live crown ratio on fuel moisture. Data was collected in Cross Timbers forests on Oklahoma State University property adjacent to Lake Carl Blackwell. We used sixty-five 0.04-hectare plots, distributed throughout 8 hectares of total forested area. Data collected included fuel and duff depth; 1-, 10-, and 100-hour fuel loading; fuel moisture collected immediately before burning for live and dead 1-, 10-, and 100-hour fuels; tree species; DBH; height; crown height and distance measurements; and live crown ratio. Following preliminary data collection, plots were mechanically treated and subsequently burned in late August and early September. This analysis primarily points to relationships among tree diversity, fuel load, and fuel moisture. We neither found significant relationships between the percent eastern redcedar and tree species diversity, average eastern redcedar DBH and fuel moisture, nor total average DBH and fuel moisture. The team postulates the combined aspects of fuel loading, fuel architecture, and plot-scale limitations on how they may have been more impactful on fire behavior.Publication Poison ivy, poison oak and similar plant identification for the home gardener(Oklahoma Cooperative Extension Service, 2025-02)Publication Nutritional concerns for exercising horses(Oklahoma Cooperative Extension Service, 2025-02)Publication Intersectional complexity in stereotype content(University of Chicago Press, 2023-11)Research on stereotypes often focuses on discrete, isolated social categories (e.g., gender or race), and rarely centers the fact that people be-long to many social categories at once (e.g., gender and race). In a large factorial experiment (N = 1,762) I measure two dimensions of stereo-types—warmth and competence—across 360 intersections of gender, sexuality, age, race/ethnicity, and social class. Warmth stereotypes were complex in the sense that only about a third of intersectional variation came from main effects of the five social categories. Competence stereotypes were less complex, with most variation stemming from main effects. Stereotypes varied across intersections with other categories, even sometimes reversing typically negative stereotypes. Finally, analyses also showed support for double standard theories: equal competence yielded less expected status for the more marginalized. Such findings show how intersectional perspectives can shed new light on how stereotypes affect how people are seen and uncover commonalities as well as differences between intersectional identities.Publication Sustaining New Mexico’s ponderosa pine ecosystems: A collaborative approach across the reforestation pipeline(2024-11-29)Climate change is exacerbating stressors on New Mexico's ponderosa pine forests, necessitating effective reforestation strategies. The Target Plant Concept, emphasizing meticulous planning and collaboration, is crucial for successful reforestation, addressing site-specific limitations and optimizing seedling survival. The newly established New Mexico Reforestation Center (NMRC) integrates seed collection, nursery production, and planting operations to meet this challenge, requiring substantial seed collection and seedling production. To achieve this, the NMRC employs an "all-hands-on-deck" approach, fostering partnerships to enhance reforestation capacity, improve seedling quality, and refine planting practices, ultimately aiming to restore millions of acres of burned forests across New Mexico.
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