School of Sustainability Graduate Culminating Experiences
Student capstone and applied projects from ASU's School of Sustainability.
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- Creators: Antidormi, Rachel
- Creators: Beye, Alioune
Description
Recent trends show that consumers are starting to prioritize sustainability when they go out to eat now more than ever. Tarbell's, a family-owned restaurant based in Phoenix, Arizona, aims to become a leader in sustainable food service but requires additional expertise in prioritizing and showcasing their sustainability efforts. Founded by Mark Tarbell in 1994, Tarbell’s portfolio includes the main restaurant- Tarbell’s, The Wine Store and Tavern, their catering business, and The Tavern at Phoenix Sky Harbor Airport., Tarbell’s has partnered with the Tarbellas, a group of Master of Sustainability Solutions (MSUS) students at Arizona State University (ASU), to pursue larger impact goals, including conducting a materiality assessment and drafting a sustainability plan of action.
To begin the project process, the Tarbellas completed a landscape analysis. We researched the following categories: restaurant vendor practices; small, international restaurants; small, national restaurants; corporate food retailers; and restaurant-related sustainability certifications. This analysis informed our other research methods, including a best practices assessment and TOWS analysis, ultimately leading us to develop four initial priorities that informed our next steps: 1) hire a staff member to manage all sustainability initiatives and reporting, 2) focus on sustainable procurement across the restaurant, 3) complete the Food Made Good online audit, and 4) work towards and obtain Green Restaurant Association Certification.
With support from Tarbell’s, we developed a job description for a Sustainability Program Manager and a Sustainable Purchasing Policy. We created both by researching existing job postings and purchasing policies, and then adapted them to fit Tarbell’s needs and goals. Tarbell’s also completed the Food Made Good online audit.
Finally, the Tarbellas completed a materiality assessment. In order to do this, we developed an internal stakeholder survey and collected data on Tarbell’s annual spend from 2022. We plotted the results on a materiality matrix and used the results to inform how to prioritize the next steps. This prioritization will help Tarbell’s inform their sustainability strategy in the future.
Going forward, we recommend the following to Tarbell’s: 1) Hire a Sustainability Program Manager, 2) Utilize the Sustainable Purchasing Policy (SPP) we developed, 3) Obtain Green Restaurant Association Certification, and 4) routinely revisit their material impacts. Our report takes the format of a sustainability plan of action, enabling Tarbell’s to continue pursuing sustainability while being a leading example and guide for other small, independent restaurants on their paths to pursuing sustainability.
ContributorsAntidormi, Rachel (Author) / Martin, Azita (Author) / Ouellette, Kelsey (Author) / Queen, Sarah (Author)
Created2023-04-26
ContributorsAntidormi, Rachel (Author) / Martin, Azita (Author) / Ouellette, Kelsey (Author) / Queen, Sarah (Author)
Created2023-04-26
ContributorsAntidormi, Rachel (Author) / Martin, Azita (Author) / Ouellette, Kelsey (Author) / Queen, Sarah (Author)
Created2023-04-26
ContributorsAntidormi, Rachel (Author) / Martin, Azita (Author) / Ouellette, Kelsey (Author) / Queen, Sarah (Author)
Created2023-04-26
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