Research & reports
Peer-reviewed research and reports on community urban agriculture, food education, composting, welfare and more.
Theme
Critical findings
136 results(3 / 6)
The degree of urbanisation reduces wild bee and butterfly diversity and alters the patterns of flower-visitation in urban dry grasslands
2023Herrmann J., Buchholz S., Theodorou P. · Scientific Reports · Germany
In German urban dry grasslands, examined effects of local habitat quality, urbanisation (impervious surfaces), and 3D connectivity on flower visitors; bee and butterfly species richness declined with increasing impervious surface.
PollinatorsBiodiversityDrivers of cultivated and wild plant pollination in urban agroecosystems
2023Nguyen H., Schmack J., Egerer M. · Basic and Applied Ecology · Germany (Munich)
Conducted a pollination-exclusion experiment with two cultivated and two wild plant species across 13 Munich community gardens, finding cultivated-plant fruit and seed mass positively correlated with temperature and pollinator diversity.
PollinatorsBiodiversityFloral species evenness is the major driver of wild bee communities in urban gardens
2023Rossi Rotondi B. · Urban Ecosystems · Cordoba, Argentina
Surveying bees and blooms across 13 gardens in Cordoba, Argentina, the study found floral species evenness to be the strongest driver of bee abundance, diversity and functional trait diversity.
PollinatorsBiodiversityDecline in wild bee species richness associated with honey bee (Apis mellifera L.) abundance in an urban ecosystem
2023Gail MacInnis, Etienne Normandin, Carly D. Ziter · PeerJ · Canada (Montreal)
A study of wild bee communities across Montreal, Canada, greenspaces with differing honey bee densities, surveyed in 2020 and compared with 2013 baseline data. Sites with more honey bees had fewer wild bee species, and the negative association was strongest for small-bodied bees (inter-tegular span under 2.25 mm), whose shorter foraging ranges limit their access to floral resources under competition. Urban beekeeping is commonly promoted as environmentally beneficial, but this observational evidence indicates that high-density operations may pressure native pollinators through resource competition and pathogen transmission; the design is correlational rather than an experimental test of causation.
PollinatorsBiodiversityCommunity Gardens: A Solution to Combat Food Insecurity and Promote Native Bee Conservation
2023Sarah E. Orr · American Entomologist · United States
Community gardens are presented as a solution to food insecurity and a means to promote native bee conservation. They provide local fresh produce, affordable nutritious options, and foster education in gardening and nutrition. Additionally, community gardens support biodiversity, as roughly 35% of human food crops depend on animal pollination, with bees being primary pollinators for many crops.
CommunityFood educationWelfareBiodiversityPollinatorsInitial assessment to understand the effect of air temperature on bees as floral visitors in urban orchards
2023María José Ludewig, Patricia Landaverde‐González, Klaus‐Peter Götz, Frank‐M. Chmielewski · Journal of Insect Conservation · Global
This study assessed bee visits to experimental blueberry and cherry orchards in an urban landscape to understand how air temperature affects the pollination contribution of honey bees and wild bees. Bumble bees and honey bees were the most important floral visitors, followed by Anthophora plumipes. Honey bees' potential contribution to pollination services decreased with air temperature changes, but this was offset by the niche complementarity of bumble bees.
PollinatorsBiodiversityClimate changeStingless bee keeping: Biocultural conservation and agroecological education
2023Elda Míriam Aldasoro Maya, Ulises Rodríguez‐Robles, María Luisa Martínez Gutiérrez, Guelmy Anilú Chan Mutul, Teresita Avilez López, Helda Morales, Bruce G. Ferguson, Jorge Mérida‐Rivas · Frontiers in Sustainable Food Systems · Mexico (Tabasco)
Meliponiculture, or stingless bee breeding, in Mesoamerica serves as an effective tool for agroecological education, scaling, and pollinator conservation. In Tabasco, Mexico, activities included documenting contemporary knowledges, community agroecological workshops, guided visits to an institutional meliponary, and promoting school gardens, utilizing "knowledge dialogues" as a methodological approach. The study identified characteristics of stingless bees and their cultivation, such as their ecological and cultural importance, role as pollinators, association with community values, and productive potential, making them excellent mediators for biocultural conservation and agroecological education.
Food educationBiodiversityPollinatorsCommunityEnvironmental factors affecting honey bees (Apis cerana) and cabbage white butterflies (Pieris rapae) at urban farmlands
2023Myung‐Bok Lee · PeerJ · China
This study investigated how environmental features within and surrounding urban farmlands affected the abundance of Asian honey bees (Apis cerana) and cabbage white butterflies (Pieris rapae) in a megacity of China during winters. P. rapae abundance increased with local crop diversity but was strongly negatively associated with landscape-scale crop and weed covers. A. cerana responded positively to fine-scale flower cover, increased with local-scale weed cover, but decreased with increasing landscape-scale weed cover.
BiodiversityPollinatorsFood sovereignty & justiceUrban–rural linkageEntomofauna benéfica en la diversidad arbórea de la agricultura urbana en Pinar del Río, Cuba
2023Lisandra Hernández-Guanche, Yoerlandy Santana Baños, Yusniel Dago-Dueñas, Ramón Hernández Carballo, Armando Del Busto-Concepción · Revista Mexicana de Ciencias Agrícolas · Cuba
This study identified the beneficial entomofauna associated with arboreal species in urban agriculture settings in Pinar del Río, Cuba. Between September 2019 and March 2020, a floristic inventory of arboreal biodiversity was conducted, and samples of bioregulators were collected. Twenty-three arboreal species were inventoried, with 65% being fruit trees. The highest species richness was detected in the orders Diptera, Mesostigmata, Hymenoptera, and Araneae. The most frequent bioregulators were Condylostylus sp., Ocyptamus costatus, and Phytoseiulus sp., while the arboreal species with the highest proportion of associated arthropods were Persea americana, Citrus limon, Morinda citrifolia, and Psidium guajava.
BiodiversityPollinatorsOrganic cycleNo statistical evidence that honey bees competitively reduced wild bee abundance in the Munich Botanic Garden—a comment on Renner et al. (2021)
2022Lawrence D. Harder, Ronald M. Miksha · Oecologia · Germany (Munich)
A re-analysis of the observations behind Renner et al. (2021), which had concluded that an increase in managed honey bee hives between 2019 and 2020 intensified competition with non-Apis bees in the Munich Botanic Garden, Germany. The comment shows that the change in hive numbers did not statistically alter honey bee visitation to 29 plant species either within or between years, so the shift in the proportion of non-Apis bees among visitors is better explained as a response to reduced overall floral resource availability in 2020. The claim that urban beekeeping suppresses native pollinators is therefore supported by some observational studies and contested by re-analyses that find the statistical basis insufficient.
PollinatorsBiodiversityLow resource availability drives feeding niche partitioning between wild bees and honeybees in a European city
2022Joan Casanelles‐Abella, Simone Fontana, Bertrand Fournier, David Frey, Marco Moretti · Ecological Applications · Switzerland (Zurich)
This study in 23 urban gardens in Zurich, Switzerland, examined feeding niche partitioning between wild bees and honeybees. Researchers found that feeding niche partitioning increased with wild bee species richness and in sites with lower landscape-scale resource availability, which also had lower honeybee abundances. However, beekeeping intensity at local and landscape scales did not directly influence community feeding niche partitioning or wild bee species richness, suggesting direct competition for resources was not a main driver for the wild bee community.
Environmental trade-offsBiodiversityPollinatorsCommunityGoldilocks’ quarter-hectare urban farm: An agent-based model for improved pollination of community gardens and small-holder farms
2022Alan Dorin, Tim Taylor, Adrian G. Dyer · PLOS Sustainability and Transformation · Global
This study used an agent-based model to explore the impact of insect flower constancy, heterospecific pollen transfer, and crop patch size on pollination in urban farms. It found that highly constant pollinators were most effective in the smallest patches, while less constant insects performed better in intermediate-sized areas. The model identified an optimal "Goldilocks zone" for pollination around 11m x 11m, suggesting that collaborative management to increase single-crop patch size could improve pollination in community farms.
CommunityBiodiversityPollinatorsFor the love of insects: gardening grows positive emotions (biophilia) towards invertebrates
2022Amelie M. Vanderstock, Cecilia Grandi-Nagashiro, Gaku Kudo, Tanya Latty, Shoko Nakamura, Thomas E. White, Masashi Soga · Journal of Insect Conservation · Japan
An online survey was conducted with 443 adults in Japan to investigate the association between nature and gardening experiences, demographics, species identification knowledge, and biophilia (liking) and biophobia (dislike, fear, and disgust) towards invertebrates. Frequent gardeners were found to be more likely to express biophilia and perceive invertebrates as beneficial, and generally less likely to express biophobia. The results suggest that gardening can serve as a pathway to foster appreciation for invertebrate biodiversity in urban settings.
BiodiversityPollinatorsCommunityEL ESPÍRITU DEL ZUMBIDO: ENTREVISTA CON ERIKA MAYR
2022Jorge Godoy Román · Materia Arquitectura · Germany (Berlin)
This interview with Erika Mayr, an entomologist, horticulturist, ecologist, beekeeper, gardener, writer, and caretaker, explores her over 25-year dedication to understanding the importance of bees for other species. It highlights her personal relationship with bees, particularly in Berlin's urban environment, which involved various urban spaces and communities. Now based in Rome, Mayr shares her experiences and current projects in the city.
BiodiversityPollinatorsCommunityDemonstration gardens as informal education strategies in rehabilitation efforts
2022Rachel Bechtold, Catherine W. Shoulders, Jennie Popp, Donald M. Johnson, Lisa S. Wood · Natural sciences education · United States
This study evaluated the process and efficacy of installing a demonstration plot along a multiuse trail in Southeast Kansas to educate the community on rehabilitative plots. The greatest perceived challenges for this case study were the allotment of time and money for initial costs of the demonstration plot and addressing methodology for plant blindness in viewers.
CommunityBiodiversityPollinatorsFood educationPEMBERDAYAAN PETERNAK LEBAH TRIGONA PADA KELOMPOK USAHA A BEE HONEY DI GAMPONG ALUE AWE KECAMATAN MUARA DUA
2022Mohd Zulkifli Muhammad, Mohd Zulkifli Muhammad, Reza Putra, Abdul Rahman, Ridho Hafis, Faizar Rianda · JURNAL HURRIAH Jurnal Evaluasi Pendidikan dan Penelitian · Indonesia
The A Bee Honey group in Gampong Alue Awe, Muara Dua subdistrict, implemented a pilot program for Trigona honey bee cultivation from August to November 2022. Despite its potential as an income source, honey supply does not consistently meet demand, and a lack of understanding regarding cultivation and economics reduces consumer interest. The community also does not fully comprehend the advantages and potential of trigona bee cultivation. Training was provided to educate the community on its potential as an alternative income source, resulting in five family heads joining the program.
Economic viabilityCommunityEconomicsFood educationPollinatorsContributions of Green Infrastructure-Oriented Planning and Designing in Residential Gardens to the City’s Ecosystem: Case of Trabzon City, Turkey
2022Demet Ülkü Gülpınar Sekban, Duygu Akyol · Journal of Urban Planning and Development · Turkey (Trabzon)
This study examined the contribution of residential gardens to ecosystem services in Trabzon City, Turkey. It was determined that both spatial needs and ecosystem benefits can be met with the same Green Infrastructure (GI) elements, and landscape value is supported by GI elements such as edible gardens, pollinator gardens, rain gardens, biological ponds, and green roofs. GI elements combining vegetation and water landscape elements have a higher potential for ecosystem services. The study concluded that green areas of residential gardens should be planned and designed through a holistic GI-oriented approach based on the total building parcel.
BiodiversityPollinatorsDIYClimate changeThe Importance of Urban Green Spaces for Pollinating Insects: The Case of the Metropolitan Area of Port-au-Prince, Haiti
2022Pierre Michard Beaujour, Frank Cézilly · Caribbean Journal of Science · Haiti (Port-au-Prince)
This survey assessed the distribution of pollinating insect orders in 16 urban green sites in Port-au-Prince, Haiti, from January to April 2018. Researchers collected 2,747 pollinating insects and found that insect order richness was significantly higher at agroforestry plantations compared to unexploited forest remnants. Site area, elevation, and built area percentage had no significant influence on the total number of insects collected.
BiodiversityPollinatorsUrban–rural linkageA little does a lot: Can small-scale planting for pollinators make a difference?
2022Philip Donkersley, Sammy Witchalls, Elias H. Bloom, David W. Crowder · Agriculture Ecosystems & Environment · Global
A meta-analysis of 31 studies and a 5-year study on small pollinator habitats (30 m²) at community gardens and farms (150,000 m²) assessed the effect of pollinator planting interventions. Pollinator conservation interventions increased species richness and abundance in almost all studies, with greatest increases from hedgerows (40 m²) and herbaceous interventions (500 m²). Small interventions (∼500 m²) can significantly benefit pollinators, but only when densely distributed at a landscape level, and future research is needed on their cumulative effects.
BiodiversityPollinatorsCommunityHoney Bee Diversity in Urban and Peri-urban Agriculture and Urban Forest- Outlook Study from Bengaluru-Silicon Valley of India: A Review
2022Prem José Vazhacharickal, K. S. Jagadish, G. Eswarappa · Agricultural Reviews · India (Bengaluru)
This outlook study reviewed honey bee diversity and the potential for integrating honey bees into urban agriculture and forests in Bengaluru, India. An urban forestry study in Bengaluru identified 374 plant species, with the highest diversity in parks (291 species). Most plant species provided good foraging sources for honey bees, including Apis indica, Apis dorsata, Apis florea, and Trigona iridipennis. The urban agro-ecosystem in Bengaluru was found to be suitable for beekeeping, particularly for stingless bees.
BiodiversityPollinatorsUrban–rural linkageDIYThe bee fauna associated with Pacific Northwest (USA) native plants for gardens
2022Aaron Anderson, Lucas Costner, Lincoln R. Best, Gail Langellotto · Conservation Science and Practice · United States
This study compared the attractiveness of 23 native Pacific Northwest plant species to bees over three field seasons, using timed bee counts and vacuum sampling. It found that Douglas' aster, California poppy, varileaf phacelia, Canada goldenrod, farewell-to-spring, globe gilia, and Oregon sunshine consistently supported high bee abundance and species richness. These findings can inform urban pollinator conservation efforts in gardens and public spaces.
BiodiversityPollinatorsCommunityHigh honeybee abundances reduce wild bee abundances on flowers in the city of Munich
2021Renner S., Graf M., Hentschel Z., Krause H., Fleischmann A. · Oecologia · Germany (Munich)
Observed flower visitation on 29 plant species in a large Munich urban garden, finding that higher honeybee densities correlated with a significant shift from wild-bee to honeybee visits.
PollinatorsBiodiversityBeekeeping in, of or for the city? A socioecological perspective on urban apiculture
2021Sponsler D. B. · People and Nature · Global (review)
A socioecological perspective on urban apiculture examining whether urban beekeeping serves cities, bees, or beekeepers, and its implications for wild pollinator conservation and management.
PollinatorsPolicyUrban agroforestry as a strategy for aligning agroecology with resilience planning initiatives
2021Sarah Taylor Lovell, John Taylor · · Global
This paper discusses urban agroforestry (UAF) as a strategy to integrate fruit and nut production into urban settings, emphasizing the inclusion of agroecological principles for improved design. It suggests that UAF can be intentionally integrated into urban landscapes, considering synergies with adjacent land uses. Guidelines for planting design can draw from multi-strata systems found in permaculture and food forest literature.
BiodiversityPollinatorsFood sovereignty & justicePolicyA polinização por abelhas sob a perspectiva da Abordagem de Serviços Ecossistêmicos (ASE)
2021Fernanda Rodrigues Vieira, Daniel Caixeta Andrade, Francis Lee Ribeiro · Revista Ibero-Americana de Ciências Ambientais · Global
This systematic review analyzed 45 publications from Web of Science up to September 2020 to examine the benefits of bee pollination through the Ecosystem Services Approach. The review found a significant increase in publications over the last two decades, with 84.44% associating pollination with rural agricultural productivity, 8.88% with wild plant reproduction, and 6.66% with urban agriculture. Only 7 of the 45 studies conducted economic valuation of pollination.
PollinatorsBiodiversityOrganic cycle