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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
731

A Multi-Taxonomic Approach to Assess the Impact of Overabundant White-Tailed Deer (Odocoileus virginianus) in Forest Ecosystems Across Northeast Ohio

Laux, Sara Ann 03 June 2013 (has links)
No description available.
732

Mattanock Town Restoration Plan

McCarter Grigsby, Katlin 01 January 2023 (has links) (PDF)
Mattanock Town's Restoration Plan is a science-based restoration process that evaluates the site's history, the tribal history, and the most current research to maximize native habitats, enhance coastal resilience, and reconnect the Nansemond people to the local river. Restoration priorities include increasing native plant species, incorporating oyster habitat, and addressing erosion. This plan details how synthesizing existing and new physical, biological, and cultural information can help the Nansemond Indian Nation prioritize projects that benefit their community and the surrounding environment.
733

The perception and use of native plants in the landscape: understanding the practices of landscape architects in the Southeast United States

Wichlan, Megan 09 August 2022 (has links) (PDF)
Landscape architects and designers have the ability to construct plantings in a landscape with native or non-native plants, or a combination of both plant types. The question at hand is, why choose one over the other? This study explores what might impact the plant choice decisions of practicing landscape architects in the southeast United States. A survey is utilized to understand how respondents make plant choice decisions and perceive native plants. Comparisons between previous studies are made focusing on their distribution methods, survey populations and major findings. The findings of this study are not conclusive due to a small response rate; however, they can be applied to the survey population. The results may indicate that the most common obstacles when using native plants are limited availability of natives and difficulty sourcing them, aesthetics and negative client perception, and the maintenance requirements and lack of maintenance knowledge of native plants.
734

Culvert Roughness Elements for Native Utah Fish Passage: Phase I

Esplin, Lindsay D. 16 March 2011 (has links) (PDF)
Culverts can increase stream velocities as a result of reduced waterway areas and prevent upstream passage of small non-salmonid fish such as the Native Utah Leatherside chub (Gila copei) and Longnose dace (Rhinichthyscataractae). To mitigate this problem, current culvert design standards for fish passage match sustained fish swim speeds with average cross sectional velocity through the culvert. Such policies dictate relatively large barrels and do not recognize the role of reduced velocity zones near culvert boundaries. Obstacles and streambed substrate create turbulent regions with lower velocity zones that can increase upstream fish passage. A comparison of upstream passage success using native Utah fish in an experimental flume was conducted with three different conditions: (1) a smooth boundary, (2) a smooth boundary with strategically placed cylinders, and (3) a boundary consisting of natural substrate. The refuge provided by the cylinders and substrate allowed fish to expend less energy as they swam upstream. Energy expenditure was compared between the conditions by mapping the velocity field near the boundary and tracing fish swim paths. Substrate provided sufficient refuge for the fish to behave in a manner similar to their behavior in a natural environment and with significantly reduced energy expenditure. Cylinders provided limited refuge that allowed fish to rest periodically as they navigated the flume. The smooth boundary case required the highest energy expenditure as there was no refuge provided. Fish swimming capabilities in the form of prolonged and burst velocities have been recorded for most species. Streamwise velocity near the boundary can be compared to the prolonged and burst swim speeds to predict passage rates. Further field testing is necessary to fully substantiate the effectiveness of utilizing reduced velocity zones in non-salmonid fish passage prediction. If such a design approach can be used instead of using the conservative but overly simplistic average velocity to evaluate the retrofit of existing culverts and to design new culverts it will help minimize costs and result in fewer culvert replacements and smaller and simpler new designs. Other implications such as downstream effects on stream bed stability and scour remain an issue.
735

Dirty Talking Cracked Pots: Inferring Function and Use of Decorated Ceramic Bowls at Fourmile Ruin, AZ

Bullock, Heather E. 12 December 2011 (has links) (PDF)
In this thesis, I discuss the function and use of decorated ceramic bowls at Fourmile Ruin, a Pueblo IV site located in east-central Arizona. My research focused on three wares dating to the Pueblo IV period of the American Southwest (AD 1275-1450): White Mountain Red Ware, Salado Polychrome, and Jeddito Yellow Ware. These wares represent the most abundant type of decorated ceramic bowls found at Fourmile Ruin. Ceramic wares and types are described, followed by a description of their physical and stylistic characteristics and functions, an analysis of how vessels were used, and, lastly, a discussion of the contexts within which ceramic bowls may have been used. I found that decorated ceramic bowls likely functioned as serving containers, and were used on a day-to-day basis. They also may have had a symbolic function, as evidenced by the use of decoration, color, and texture, and because of their possible uses in various social or religious rituals. Furthermore, the meaning of the vessels and their uses in rituals may have changed over time. From this information, I suggest that White Mountain Red Ware, Salado polychrome, and Jeddito Black-on-yellow bowls served as utilitarian serving containers, and as a means of communicating information about personal and group identity. They were used in contexts in which expressing, teaching and reinforcing important concepts may have been integral.
736

Macrobotanical Evidence of Diet and Plant Use at Wolf Village (42UT273), Utah Valley, Utah.

Dahle, Wendy 12 December 2011 (has links) (PDF)
Farming played a role in the subsistence base for the Fremont culture, but there is no consensus as to how significant that role was. Maize is consistently found in Fremont sites, but evidence of wild plant use is also abundant. The use of both domesticates and foraged plants by the Fremont, combined with the diversity of the landscape and sites that were inhabited by the Fremont, contributes to the diversity of theories on Fremont subsistence. This thesis examines evidence for plant usage at Wolf Village, a Fremont site in Utah Valley. Wolf Village is ideally situated for a Fremont farming village. Maize, beans, and wild plant remains were all recovered in the excavation process. In order to better understand the basis of Fremont subsistence there, further research is needed, however, into the economic importance of both the domesticates and the foraged plants, how the foraged foods may have contributed to the subsistence base, and whether the foraged plants were complimentary to a farming lifestyle. The information on plant use at Wolf Village should contribute to a better understanding of Fremont subsistence.
737

Scarification and Cultural Practice of Four Lupine Species Native to the Great Basin

Jones, Covy Dennis 05 August 2011 (has links) (PDF)
The Great Basin is North America's largest desert, encompassing 135 million acres. Grazing and other anthropogenic activities in the Great Basin have put heavy demands on the landscape over the last 150 years. Heavily grazed areas lack diversity which allows the spread of exotic weed species. Cheatgrass (Bromus tectorum L [Poaceae]) has invaded and shortened fire frequency intervals from historic 30—100 years to as few as three to five years. Post-fire reseeding of native species is requisite for restoration of highly invaded ecosystems thus, preventing complete conversion to exotic weeds. Most native shrubs and grasses are available for restoration projects, but native forbs are largely unavailable or expensive. This situation led to the creation of The Great Basin Native Plant Selection and Increase Project (GBNPSIP). In 2000 this project was initiated as a joint effort between the Bureau of Land Management, Forest Service Research, and the Utah Division of Wildlife Resources in an effort to make native seed more available and less expensive for landscape scale restoration projects. To meet restoration goals the GBNPSIP project promotes cultivation of native species to increase seed supplies. This research focuses on overcoming seed dormancy issues that have hindered cultivation through scarification and evaluating germination, establishment, and seed production in a cultural setting of four lupine species: hairy big leaf lupine, (Lupinus prunophilus M.E. Jones [Fabaceae]); silky lupine, (L. sericeus Pursh); silvery lupine, (L. argenteus Pursh); and longspur lupine, (L. arbustus Dougl. ex Lind) five scarification treatments were evaluated sulphuric acid and mechanical treatments significantly improved germination on three of the four species tested. All other treatments were unpredictable and not significant. No treatments significantly improved germination of L. arbustus and three of the five treatments significantly decreased seed germination from the control. Results demonstrate that scarification method, and exposure interval, differ in effectively increasing % germination among species. Germination, establishment, and seed production were evaluated using two planting methods for each species. Broadcast plots (covered) were covered with N-Sulate fabric™ and 5 cm (2 in) of sawdust. Control plots (uncovered) were drilled and left untreated. Germination was significantly improved for all four lupine species under treatment conditions. Lupinus prunophilus and L. sericeus exhibited the greatest improvement in germination when covered. Germination of L. argenteus and L. arbustus were also significantly improved (p<0.0001 and p=0.004, respectively) by the covered treatment. Higher germination in the covered treatment was mirrored in establishment for every species except L. arbustus. There is an advantage of using the covered treatment, but low yields make cultivation unprofitable.
738

Parowan Fremont Faunal Exploitation: Resource Depression or Feasting?

Stauffer, Sara E. 06 July 2012 (has links) (PDF)
The faunal remains of large game such as mule deer, pronghorn, and mountain sheep are abundant at Fremont sites, as are jackrabbits and cottontails. The proportions of these species in Fremont faunal assemblages fluctuate through time. Explanations for these variations range from resource depression to communal activities. This thesis provides the results of the faunal analysis from three previously unreported sites. Paragonah (42IN43), Summit (42IN40), and Parowan (42IN100) are large Fremont sites in the Parowan Valley located 20 miles north of Cedar City in Utah. The purpose of this thesis is to determine if the variations in the faunal assemblage provide evidence for resource depression or feasting. I identify patterns or variation among the assemblages and determine that there is no evidence for resource depression. Evidence for feasting is present, indicating at least two possible feasting events occurred at the Paragonah site.
739

Culvert Roughness Elements for Native Utah Fish Passage: Phase II

Monk, Suzanne Kim 09 July 2012 (has links) (PDF)
Native fishes have become an increasingly important concern when designing fish passable culverts. Many operational culverts constrict waterways which increase velocities and prevent upstream passage of small fish species. The current method to ensure fish passage is to match the average cross sectional velocity to the sustained swim speed of the fish. This study investigates the passage rates of leatherside chub (Lepidomeda aliciae) and speckled dace (Rhinichthys osculus) at three sites (an arch culvert with substrate bottom, box culvert with bare bottom, and a stream section with no culvert) located on Salina Creek near Salina, UT. It was found that fish were able to pass through all of the sites. However, fish were able to take advantage of the habitat within the culvert that had a substrate bottom more effectively than within the culvert that had no substrate within the barrel. This was reflected in population density estimates at each of the three test sites for each species. It was also found that the substrate at the arch culvert and stream sites scaled with the fish measured in this study. The D50 and D84 were 44 and 205 mm at the arch culvert site and 26 and 126 mm at the stream site. The average fish length was 76 mm for the chub and 64 mm for the dace. It is recommended that (1) a culvert size that produces a velocity equal to the prolonged swim speed of target fish in the near boundary region (2 cm above the bed) be used in the future, and (2) substrate that scales with the target fish species be placed in the culvert barrel.
740

Missing Murdered Indigenous Women on the Frontlines of North Carolina

Cavalier, Crystal Ann 11 August 2022 (has links)
No description available.

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