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- All Subjects: Ecology
- Creators: School of Life Sciences
- Creators: Division of Teacher Preparation
- Status: Published
Women’s roles in society have changed significantly throughout the years. The movement to support the rights of women has been ongoing throughout the evolution of society but has been especially prevalent in the last century. The 1960s are when women began to enter the workforce instead of being limited to presuming roles as homemakers. Since that point in time, women have continued to thrive in the workforce and have pursued a larger variety of positions in various fields. Even though the opportunities for women continue to grow, there still seems to be an underrepresentation of women in science, technology, engineering, and mathematics (STEM) related fields. The underrepresentation of women pursuing physician and entrepreneurship roles in STEM will be analyzed and the challenges this group of people specifically encounter will be examined. Our first proposal to encourage women to enter STEM focuses on middle-school initiatives and incubator programs. The second proposal, based on commonalities females face within the workforce, is finding a better work/home life balance with the development of new maternity/paternity leave policies. Through these initiatives, we believe that the gender gap in STEM can be bridged.
Women’s roles in society have changed significantly throughout the years. The movement to support the rights of women has been ongoing throughout the evolution of society but has been especially prevalent in the last century. The 1960s are when women began to enter the workforce instead of being limited to presuming roles as homemakers. Since that point in time, women have continued to thrive in the workforce and have pursued a larger variety of positions in various fields. Even though the opportunities for women continue to grow, there still seems to be an underrepresentation of women in science, technology, engineering, and mathematics (STEM) related fields. The underrepresentation of women pursuing physician and entrepreneurship roles in STEM will be analyzed and the challenges this group of people specifically encounter will be examined. Our first proposal to encourage women to enter STEM focuses on middle-school initiatives and incubator programs. The second proposal, based on commonalities females face within the workforce, is finding a better work/home life balance with the development of new maternity/paternity leave policies. Through these initiatives, we believe that the gender gap in STEM can be bridged.
The Northern Gulf of California is characterized by an extreme tidal range and temperature fluctuations between seasons, as well as a large variation in microhabitats along its shoreline. As a result, the intertidal regions exhibit a diverse and distinct collection of species that have adapted to these environmental conditions, with roughly 4.6 percent being endemic. Minimal knowledge of these ecosystems existed until the 1940’s, when the renowned author John Steinbeck accompanied marine biologist Edward Ricketts on an expedition with the purpose of documenting the biodiversity of the Sea of Cortez. Today, the majority of research in the Northern Gulf of California is directed by CEDO, the Intercultural Center for the Study of Deserts and Oceans. The purpose of this project is to compile a literature review of research on the intertidal areas of the Northern Gulf and produce an illustrated brochure that educates beach visitors on local biodiversity as a collaboration with CEDO and the Clean Beaches Committee of Puerto Peñasco. This brochure aims to increase respect and appreciation for these species, as increased tourism over the past few decades has led to detrimental effects on the ecosystem. Additionally, it serves to promote the success of the Blue Flag certification of El Mirador beach in front of Manny’s Beach Club.
The bull shark, Carcharhinus leucas, is a large species that it is commonly distributed worldwide in tropical and subtropical waters. Despite the bull sharks global distribution, little is known about its life history. In particular, the limited reproductive information suggests the bull shark is placental viviparous, assumed to have a biennial cycle, and that newborn pup nurseries are near the coast. In order to conserve and protect any species, an understanding of the habitats where reproductive events occur is needed. In order to better understand the habitat use in Biscayne bay, Fla, and whether certain areas are critical during the reproductive cycle of bull sharks, I will evaluate circulating levels of the hormones progesterone, estradiol, and testosterone using radioimmunoassay. These samples were collected by the University of Miami opportunistically between 2012-2020 shipped to Arizona State University, where they were analyzed. For my study a total of 73 mature samples, 27 females and 46 males, were collected over the sampling period. The results indicated that Biscayne bay is an important gestation area for bull sharks. The hormonal trends for males and females demonstrated an interesting reproductive cycle, which were further supported through other placental viviparous reproductive patterns. Females had a low level of estradiol throughout most of the year, besides in the summer where there were no sharks in the bay due to movement to estuaries. During their return to the bay, there was a peak in progesterone indicating early pregnancy. Male testosterone levels indicated that there was a production in sperm right before females speculated peak in estradiol.
There were nine ants who transported a fig seed numerous times and there was a clear variation in their average instantaneous speed. Within an ant, slightly varying speeds were found as well, but within-ant speeds were not as varied as speed across ants. These results support the conclusion that there is intrinsic variation in the speed of an individual which supports the slowest-ant model, but this may require further experimentation to test thoroughly. This information aids in the understanding of the natural variation of ants cooperatively carrying larger loads in groups.