School of Sustainability Graduate Culminating Experiences
Student capstone and applied projects from ASU's School of Sustainability.
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- Creators: Beye, Alioune
- Creators: Dosier, Skyliana
Description
In Senegal, West Africa, soils are a vital resource for livelihoods and food security in smallholder farming communities. Low nitrogen (N) soils pose obvious challenges for crop production but may also, counterintuitively, promote the abundance of agricultural pests like the Senegalese locust, Oedaleus senegalensis. In this study I investigated how the abundance of locusts and grasshoppers are impacted by soil fertility through plant nutrients and how these variables change across land use types. We worked in two rural farming villages in the Kaffrine region of Senegal. Overall, there was little variation in soil properties and an agricultural landscape low in soil organic matter (SOM) and inorganic soil nitrogen. I corroborated that SOM is a significant driver of soil inorganic N, which had a positive relationship to plant N content. Of the management practices we surveyed, fallowing fields was important for soil nutrient restoration and years spent fallow was significantly correlated to inorganic soil N and SOM. O. senegalensis was least abundant in groundnut areas where plant N was highest. Additionally, I found a significant negative correlation between O. senegalensis abundance and plant N, suggesting that plant nutrients are an important driver of their populations. Grasshoppers, excluding O. senegalensis, were more numerous in grazing areas and fallow areas, perhaps due to a higher diversity of ecological niches and host plants. These results connect land use, soil, and vegetation to herbivores and suggest that improving soil fertility could be used as an alternative to pesticides to keep locusts at bay and improve crop yields.
ContributorsWord, Mira (Author) / Hall, Sharon (Contributor) / Robinson, Brian (Contributor) / Manneh, Balanding (Contributor) / Beye, Alioune (Contributor) / Cease, Arianne (Contributor)
Created2018-04-10
Description
In universities, such as Arizona State, students are becoming homeless at an alarming rate. These homeless ASU students are often invisible, as seen through the lack of information on who they are and what resources the university has developed to help them. Typically, students arrive at university campuses with most of the resources required for them to pursue a degree. However, several economic factors such as unemployment or financial instability can impact these resources which influence students ability to stay enrolled in classes. This feature is reflected in the well understood concept of the starving student. Despite this paradigm, the fact remains that students under this stress are attending classes and are under financial stress to do so while being unable to meet their basic needs. These intertwined elements result in ASU students becoming exposed to cyclical needs-insecurities including homelessness.
Therefore, the team decided to develop a project called Sun Devils Together which addresses the needs of ASUs students facing homelessness and overall aims to help increase the accessibility of available resources through reducing the silo effect that occurs due to lack of communication between different departments and increases faculty, staff, and student awareness regarding the issue. In order to achieve this, the team has collaborated with the Assistant Dean of Students to produce a training module for ASU faculty, professional staff, and students. The team is contributing information to the creation of a new website that will have all the resources available to students in one place. In addition, the team will create a coded pamphlet with a map of resources that will be given out to different departments around campus that students may potentially reach out to for help while informing those departments regarding the existence of other departments that work towards the same cause.
Therefore, the team decided to develop a project called Sun Devils Together which addresses the needs of ASUs students facing homelessness and overall aims to help increase the accessibility of available resources through reducing the silo effect that occurs due to lack of communication between different departments and increases faculty, staff, and student awareness regarding the issue. In order to achieve this, the team has collaborated with the Assistant Dean of Students to produce a training module for ASU faculty, professional staff, and students. The team is contributing information to the creation of a new website that will have all the resources available to students in one place. In addition, the team will create a coded pamphlet with a map of resources that will be given out to different departments around campus that students may potentially reach out to for help while informing those departments regarding the existence of other departments that work towards the same cause.
ContributorsAbdul Rashid, Maryam (Writer of accompanying material) / Dosier, Skyliana (Writer of accompanying material) / Sanchez Marquez, Omar (Writer of accompanying material)
Created2020-05-13