Timothy D. O’Connor and Dr. Keith A. Crandall Department of Integrated Biology There are an estimated 338 taxa of freshwater crayfish in the United States, with approximately 48% considered to be endangered, threatened, or of special concern (Taylor et al. 1996). Life history information for the majority of the primary burrowing species is lacking because […]
Species Composition of a Desert Rock Pool Metacommunity
Cameron Kmetzsch and Professor Russell B Rader, Integrative Biology Rock pools are one of the most unique and threatened aquatic habitats in the world. Changes in global climate could alter precipitation patterns and disrupt the annual cycle of filling and drying to which this community has evolved. Previous misconceptions assume that all rock pools are temporary habitats. […]
A Study of Genetic Variation in Geographically Separated Populations of Pediomelum pariense
Asher Jones and Dr. Keith A. Crandall, Integrative Biology Pediomelum pariense, also known as Paria River Indian Breadroot, has been listed by NatureServe as an imperiled organism because of its low population numbers. However, no state or federal agency has made any effort to promote the preservation of this species. Ashley Egan, PhD, designed a […]
The Investigation of X-Ray Diffraction Patterns from Human Hair in Correlation with Dietary Habits
Savannah Gore and Professor Beverly L. Roeder, Department of Biology Eating disorders, namely anorexia nervosa (AN) and bulimia nervosa (BN), are a serious problem affecting 1-5% of high school and college age women in the US. Unfortunately, the diagnostic methods used to determine if an individual is suffering from AN or BN are, for the most part, […]
Organizing BYU’s Fungi Collection
Tess Blackwelder and Dr. Leigh Johnson, Integrative Biology The Monte L. Bean Life Science Museum at Brigham Young University houses many biological collections for study and display. Among the collections of insects, plants, fish, and mammals, there is also a fungi collection. This was donated to BYU by mycologist Kent McKnight (former BYU faculty) several […]
A Blood Test for Alzheimer’s Disease
Frederick Rohlfing and Dr. John Kauwe, Department of Biology Introduction Alzheimer’s disease (AD) is a severe chronic neurodegenerative disorder and the most common form of dementia1. Unfortunately, there is little understanding of its cause, let alone a cure for the 5.3 million affected Americans2. In my research, a novel proteomics method is being used to […]
Whose Legs are in the Water? Parsing out Community Composition and Turnover Rates of Plecoptera, Trichoptera, and Ephemeroptera
Sarah Walker and Dr. C. Riley Nelson, Department of Biology Many beta diversity indicies, like most analytical tools in ecology, abstract the known relative abundances and species presence into outputs primarily useful for obtaining p-values and little else. Therefore, the purposes of this proposed beta diversity method were to simplify currently used similarity analyses for […]
Crandall Specimen Collection Database
Mark Valentine and Dr. Keith Crandall, Biology The goal of this project was to design and implement a database and web-based interface, to store information on the specimens collected for study in the Crandall lab. The creation of a user-friendly centralized database to warehouse the information on all of the specimens studied is anticipated to […]
A Survey of Reproductive Biology of Zenarchopterus dispar in Khanh Hoa Province, Vietnam
Tu Tran and Dr. Mark Belk, Integrative Biology Different selective environments could often predict life-history strategies (sensu Endler 1986). Resource levels of the environments strongly affect fitness and evolutionary stable strategies of species (Patrick and Pierre 1993). Similarly, predators also have a major effect on the life history of fish populations. The fish population from […]
Estimating Dispersal of Spring Invertebrates through Genetic Diversity
Keith Tanner and Dr. Dennis Shiozawa, Department of Biology The Great Basin contains many closed basins, separated by north-south lying mountain ranges and low east-west lying divides. The Sierra Nevada, on the western edge of the Great Basin, generates a rain shadow, making Nevada the driest state in the nation, with Utah as the second […]
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