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Forest Saccharomyces paradoxus are robust to seasonal biotic and abiotic changes
No full text16 pages with color illustrations.Microorganisms are famous for adapting quickly to new environments. However, most evidence for rapid microbial adaptation comes from laboratory experiments or domesticated environments, and it is unclear how rates of adaptation scale from human-influenced environments to the great diversity of wild microorganisms. We examined potential monthly-scale selective pressures in the model forest yeast Saccharomyces paradoxus. Contrary to expectations of seasonal adaptation, the S. paradoxus population was stable over four seasons in the face of abiotic and biotic environmental changes. While the S. paradoxus population was diverse, including 41 unique genotypes among 192 sampled isolates, there was no correlation between S. paradoxus genotypes and seasonal environments. Consistent with observations from other S. paradoxus populations, the forest population was highly clonal and inbred. This lack of recombination, paired with population stability, implies that selection is not acting on the forest S. paradoxus population on a seasonal timescale. Saccharomyces paradoxus may instead have evolved generalism or phenotypic plasticity with regard to seasonal environmental changes long ago. Similarly, while the forest population included diversity among phenotypes related to intraspecific interference competition, there was no evidence for active coevolution among these phenotypes. At least ten percent of the forest S. paradoxus individuals produced “killer toxins,” which kill sensitive Saccharomyces cells, but the presence of a toxin-producing isolate did not predict resistance to the toxin among nearby isolates. How forest yeasts acclimate to changing environments remains an open question, and future studies should investigate the physiological responses that allow microbial cells to cope with environmental fluctuations in their native habitats
Successful Management of Invasive Rats across a Fragmented Landscape.
No full text8 pages.Introduced mammalian predators are responsible for the decline and extinction of many native species, with rats (genus Rattus) being among the most widespread and damaging invaders worldwide. In a naturally fragmented landscape, we demonstrate the multi-year effectiveness of snap traps in the removal of Rattus rattus and Rattus exulans from lava-surrounded forest fragments ranging in size from 10 ha. Relative to other studies, we observed low levels of fragment recolonization. Larger rats were the first to be trapped, with the average size of trapped rats decreasing over time. Rat removal led to distinct shifts in the foraging height and location of mongooses and mice, emphasizing the need to focus control efforts on multiple invasive species at once. Furthermore, because of a specially designed trap casing, we observed low non-target capture rates, suggesting that on Hawai‘i and similar islands lacking native rodents the risk of killing non-target species in snap traps may be lower than the application of rodenticides, which have the potential to contaminate food webs. These efforts demonstrate that targeted snap-trapping is an effective removal method for invasive rats in fragmented habitats and that, where used, monitoring of recolonization should be included as part of a comprehensive biodiversity management strategy
Babe Lincoln Vol. 4 (Spring 2021)
No full textContains commentary, editorials, and creative writing.Wheaton College (Norton, MA) student politics and culture magazine.36 pages; color illustrations
When Death is the Maiden: Art, Literature, and the English Female Ghost, 1860 to 1911.
No full text86 leaves : illustrations.Includes bibliographical references (leaves 79-86).This honors thesis analyzes the relationship between the literary female ghost and art culture from 1860 to 1911. I expand on previous research regarding the feminist potential of ghosts, as well as research on how visual and artistic representations of dead women in the nineteenth century reflected the period’s male fantasies and constituted an assertion of male domination in the face of women’s socio-political gains in England. By exploring three distinct ghost stories, each containing female ghosts that correspond to specific art movements, I argue that the female ghost evoked patriarchal artistic tropes concerning dead women. They also ultimately challenged the aestheticization and fetishization of inert female forms so as to question or critique broader cultural constructions of women during the long nineteenth century.Chapter One: “The Cold Embrace” and Female Suicide by Drowning -- Chapter Two: “Amour Dure” and the Aesthetic Femme Fatale -- Chapter Three: “Rose Rose,” Commodification, and Consumeris
Cómo las políticas económicas de Franco moldearon la democracia española
No full textSubmitted as final work for HISP400 - Senior Seminar in Hispanic Studies focusing on Madrid in the 1980s
More than just friends : understanding the role of casual sex in lgbtq+ identity formation.
No full text49 leaves.Includes bibliographical references (leaves 46-49).The objective of this study is to illuminate how college students who self-identify as part of the LGBTQ+ community partake in casual sex or hookups as a tool for identity formation during their coming-out process. This research challenges the assumption of casual sex as a tool of gender-based violence, instead pushing for a more positive understanding of casual sex as a space for learning about oneself and negotiating boundaries. Furthermore, this research aims to destigmatize queer sex and expand our understanding past harm reduction, instead working towards understanding how to best support queer students during their time in college so that they are comfortable in their identity and sexually literate upon graduation
Evidence of the effects of dissolved carbon dioxide on hatching rates of Artemia salina cysts.
No full text6 pages; colored illustrations
Forest for the Sites: Archaeological Heritage Production in the Gila National Forest.
No full text90 leaves; Illustrations.Includes bibliographical references (leaves 85-87).The national forests of the United States represent a highly contested cultural space, where narratives of archaeological heritage, stewardship, wilderness, and more intersect and clash in the present-day. For two previous field seasons (2018 & 2019) the Upper Gila Preservation Archaeology (UGPA) field school, run jointly by Archaeology Southwest and the University of Arizona, has conducted archaeological surveys of Lincoln Canyon in Gila National Forest. These surveys have helped to establish the cultural history of the national forest and have greater implications for discussions of contemporary cultural heritage in the region. My thesis presents the results of research done using the UGPA survey data, alongside a myriad other methods such as discourse analysis and interviews of archaeologists relating to Gila National Forest in order to examine the complicated relationship between the ongoing narratives. Beyond highlighting the place of national forest archaeology in cultural heritage discourse, this research offers insight into potential dialogic and practical improvement through the application of emergent frameworks, such as critical heritage theory and archaeological ethnography, to future work.Chapter 1: Introduction||Chapter 2: Methodology||Chapter 3: Literature Review||Chapter 4: Data Analysis||Chapter 5: “A Critical and Restorative Heritage Green Paper”||Concluding Remarks:||Bibliography||Appendice