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1. Spatial characteristics of food insecurity and food access in Los Angeles County during the COVID-19 pandemic

   https://doi.org/10.1007/s12571-023-01381-5  

   Livings, Michelle Sarah ; Wilson, John ; Miller, Sydney ; Bruine de Bruin, Wändi ; Weber, Kate ; Babboni, Marianna ; Xu, Mengya ; Li, Kenan ; de la Haye, Kayla ( July 2023 , Food Security)

   Food insecurity spiked in some U.S. regions during the COVID-19 pandemic, as did food access challenges. Concerns were raised that these food issues were more prominent in food deserts, or neighborhoods lacking access to a grocery store or supermarket. Using data collected from a representative sample of Los Angeles County adults between April and October 2020, this study examined relationships between self-reported food insecurity, perceived food access barriers, and residing in a food desert, and examined differences across key geographic regions of the county. There was little relationship between residing in a food desert and experiencing food insecurity. However, perceived grocery store closures/limited hours and not having access to a vehicle were commonly reported barriers to food access, which were associated with more food insecurity. These findings suggest that geographic disparities in food access impact food insecurity. Efforts to address food insecurity should center on achieving food justice and addressing disparities across geographic regions.

    

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2. Analyzing autonomous delivery acceptance in food deserts based on shopping travel patterns

   https://doi.org/10.1016/j.tra.2023.103589  

   Mishra, Sabyasachee ; Sharma, Ishant ; Pani, Agnivesh ( March 2023 , Transportation Research Part A: Policy and Practice)

   Food desert communities in the US have a widely recognized gap between the demand for healthy foods and the minimum order size that makes it worthwhile for food purveyors to deliver to such neighborhoods, thereby creating delivery deficiencies. A diverse set of mobility constraints and activity-travel patterns exist for disadvantaged segments in these communities, especially the elderly, unemployed, and socially excluded. Appreciating this complexity, an effective solution would be to improve the food access of such communities by providing faster, inexpensive, and flexible online deliveries of healthy foods. However, little is currently known about the shopping travel pattern in food desert communities and the associated mobility inequalities. This paper fulfills this critical research gap and quantifies the differences in shopping travel behavior observed among consumers residing in food deserts and food oases using data collected from Portland and Nashville Metropolitan areas. The paper subsequently captures the perceived acceptance of autonomous delivery robots (ADRs) among these consumers to overcome their mobility inequalities. The results indicate that food desert residents aged between 18 and 25 years, African Americans and those earning more than $75,000 are more likely to engage in internet shopping than food oasis residents. Despite the perceived potential of ADRs to reduce the mobility inequalities in food deserts, acceptance levels for this emerging technology are found to be significantly less among food desert residents, especially among older generational cohorts and less qualified. This study will provide key takeaways to e-commerce companies to expand their delivery service through ADRs in underserved areas. 

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3. Exploring rural food insecurity in North Carolina: Debunking an urban myth

   Mulrooney, T. ; Mulrooney, E. ; McGinn, C. ( April 2022 , Sociation today)

   The United States Department of Agriculture (USDA) has utilized the term food desert to highlight regions within low-income communities located far from fresh and healthy sources of food such as supermarkets and farmers markets. Most research on food deserts has revolved around urban areas, which bring about other considerations such as sidewalks, pedestrian access, rideshares, and public transportation, typically not viable options in rural regions. Rural food insecurity is also a problem in North Carolina. Utilizing data provided by the United States Department of Agriculture’s Food Access Atlas, this paper explored if and to what extent rural food insecurity exists, with findings showing 1) a higher percentage of people living in rural areas live in food insecurity compared to non-rural areas 2) counties in the eastern part of the state are more prone to food insecurity and 3) racial, ethnic minorities, as well as the young (age under 17), are more subjected to food insecurity compared to the majority and older cohorts. This research highlights the need for a rigorous and comprehensive understanding of rural food security that transcends the economic, cultural, and sociological reasons of differential food access with long-term health outcomes that have multi-generational consequences. 

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4. In transition: Avian biogeographic responses to a century of climate change across desert biomes

   https://doi.org/10.1111/gcb.15030  

   Iknayan, Kelly J. ; Beissinger, Steven R. ( April 2020 , Global Change Biology)

   Transition zones between biomes, also known as ecotones, are areas of pronounced ecological change. They are primarily maintained by abiotic factors and disturbance regimes that could hinder or promote species range shifts in response to climate change. We evaluated how climate change has affected metacommunity dynamics in two adjacent biomes and across their ecotone by resurveying 106 sites that were originally surveyed for avian diversity in the early 20th century by Joseph Grinnell and colleagues. The Mojave, a warm desert, and the Great Basin, a cold desert, have distinct assemblages and meet along a contiguous, east–west boundary. Both deserts substantially warmed over the past century, but the Mojave dried while the Great Basin became wetter. We examined whether the distinctiveness and composition of desert avifaunas have changed, if species distributions shifted, and how the transition zone impacted turnover patterns. Avifauna change was characterized by (a) reduced occupancy, range contractions, and idiosyncratic species redistributions; (b) degradation of historic community structure, and increased taxonomic and climatic differentiation of the species inhabiting the two deserts; and (c) high levels of turnover at the transition zone but little range expansion of species from the warm, dry Mojave into the cooler, wetter Great Basin. Although both deserts now support more drier and warmer tolerant species, their bird communities still occupy distinct climatological space and differ significantly in climatic composition. Our results suggest a persistent transition zone between biomes contributes to limiting the redistribution of birds, and highlight the importance of understanding how transition zone dynamics impact responses to climate change.

    

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5. Examining local food deserts using visual analytics

   https://doi.org/10.54941/ahfe1003957  

   Washington, Henry ; Jiang, Steven ; Davis, Lauren ; Nam Kim, Hyung ( January 2023 , AHFE International)

   Food insecurity, an economic and social condition where households have limited access to nutritious food, is a long-standing and growing problem in both the rural and urban areas of the United States. Food deserts refer to areas that do not have adequate food access to affordable and nutritious food. Food deserts can be characterized by availability, accessibility, accommodation, affordability, and acceptability (5A’s). This research investigates food deserts in Mecklenburg County, North Carolina, which includes the city of Charlotte. The food insecure population estimate in Mecklenburg County is about 15% which is higher than the national average of 11%. Using visual analytics, a combination of analytics and human factors, this study aims to examine how age, education, and income are related to food deserts in Mecklenburg County. Data gathered from US Census Bureau was used for analysis. Results indicated that education and food desert status, and age and food desert status in Mecklenburg County were related.

    

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