Research & reports

Kyla D. Schulte, Caleb J. Wilson, Anna Tawril, Mary A. Jamieson · Ecosphere · United States (Michigan)

A three-year study across 10 strawberry farms along a rural-urban gradient in Michigan, USA, characterized bee abundance, diversity, and community composition. The study found that urbanization, measured as impervious surface cover, had no consistent effect on overall bee abundance and diversity. While urbanization differentially influenced specific taxa (Halictini positively in year one, Ceratinini negatively in year three), the overall impact was limited, with wild bees, especially native species, being important pollinators in urban agriculture.

Cavani Guzmán, Pierina · Macedonian Journal of Medical Sciences (University of Skopje) · Peru (Lima)

This article discusses the impact of urbanization and industrialization processes on peri-urban agricultural production in the Nuevo Horizonte de Carapongo association in Lurigancho, Lima, Peru. The research analyzes the development of these phenomena and their relationship with the changes generated in the agricultural production of the area, contributing to the academic discussion on the deagrarianization process of peri-urban spaces.

Alexandra Zink, Paul J. CaraDonna, Kelly Larsen, Amy M. Iler · Ecosphere · United States (Chicago)

This study investigated how urbanization relates to pollination by growing 240 plants (squash and tomato) across six sites with varying urbanization levels in Chicago, Illinois. For tomatoes, the magnitude of pollen limitation increased with greater impervious surface, indicating more pronounced pollination deficits at highly urbanized sites. For squash, evidence of pollen limitation was found only at the most urban site, with a weak trend of pollen limitation of fruit set (but not seed set) increasing with impervious surface.

Christine Costello, Zeynab Oveysi, Bayram Dündar, Ronald G. McGarvey · Environmental Science & Technology · United States (Chicago)

This study used optimization techniques to assess the land area and radius needed around Chicago, Illinois, to meet nutritional needs. It found that no mix of food items could satisfy vitamin D, B12, and calcium needs within a 650 km radius. While urban agriculture reduced the required radius by 10-15 km, significant nutrient fortification or supplementation was still necessary to localize the food system.

Kyla D. Scherr, Mary A. Jamieson · Basic and Applied Ecology · United States (Michigan)

This three-year study investigated environmental factors influencing strawberry productivity for two cultivars at ten farms across a rural-urban gradient in Michigan, USA. It found no direct effect of urbanization on strawberry production or fruit pathogen and pest damage, but temperature significantly influenced crop productivity, with cooler rural and warmer urban temperatures limiting fruit number. While no relationship was found between urbanization and overall arthropod pest, predator, or pollinator abundances, Vespidae abundance was positively associated with urbanization, and Araneae abundance was negatively associated.

Manuela Maluf Santos, Paulo Eduardo Moruzzi Marques · Estudos Avançados · Brazil (São Paulo)

This article conceptually explores the "locavorism" food activism movement, noting that its practical application can have diverse and even antagonistic effects. To analyze these contradictions, two farmer organizations in São Paulo involved in local consumption circuits were interviewed to understand the potential social and environmental effects of this purchasing model. The abstract does not present the findings of these interviews.

Lucas Ricardo Souza Almeida, Diego Cesar Alves Lima Verde, Hélder Ribeiro Freitas, Rita de Cássia Rodrigues Gonçalves Gervásio, Elson de Oliveira · Cadernos de Agroecologia · Brazil (Petrolina)

This study analyzed land use and occupation seasonality at the EREMCC Community Garden in Petrolina, Brazil, from August 2018 to March 2019. In August 2018, 73% of the 6,200 m² garden area was uncultivated, indicating a large unexplored area for production. By March 2019, food production increased by 35.71%, with most beds cultivated with cabbage, coriander, and lettuce.

Gabrielle Roesch‐McNally, Jacqueline Ann Nester, Andrea Basche, Eric Christianson, Emily Zimmerman · Lincoln (University of Nebraska) · United States (Iowa)

Story County, Iowa, despite being in a highly agriculturally productive state, faces significant food insecurity. In 2014, 15.2% of its residents (nearly 14,000 individuals) were food insecure, with 45% of them not qualifying for government assistance. The county dedicates only 2.4 acres of cropland per thousand residents to fruit, vegetable, and nut production, significantly lower than the US average of 32 acres, highlighting a paradox of hunger amidst agricultural abundance.

Diogo José Amorim de Almeida, Dilamar Dallemole, Arturo Alejandro Zavala Zavala · Revista Ibero-Americana de Ciências Ambientais · Brazil (Varzea Grande)

This study analyzed the urban and peri-urban horticultural production structure in Varzea Grande, Mato Grosso, Brazil, using an exploratory empirical and bibliographic approach followed by Cluster Analysis of primary data from local producers. Despite contributing to food production and maintaining disease-vector-free land, the research found that this activity is in decline. Its low profitability and challenging commercialization process make it unattractive or merely a supplementary income, as small productive forces struggle to sustain themselves against the current market structure and unfavorable social policies.

Mirella Cultrera, Maria Christina de Mello Amorozo, Fábio Cop Ferreira · SITIENTIBUS série Ciências Biológicas · Brazil (Mato Grosso)

An ethnobotanical study in five peripheral neighborhoods of Santo Antônio do Leverger, Mato Grosso, Brazil, surveyed 135 households and detailed 30 to characterize food plant cultivation. Ninety-seven species from 38 families were identified across homegardens, fields, and empty lots. While some species were common, the similarity between species/varieties across households was generally below 50%, and many had low frequency, revealing a vulnerability to species loss despite social network circulation.