Release experiments as an indicator of flying activities of stingless bees in urban areas

Frontiers in Sustainable Cities, Journal Year: 2023, Volume and Issue: 4

Published: Jan. 6, 2023

Contemporary urban ecology views cities as heterogeneous and dynamic ecosystems, composed of biotic, physical, social, man-made systems. In this context, beekeeping stands out a growing practice that demands further studies. Many species stingless bees (tribe Meliponini) have adapted to areas, while others are more sensitive. The composition the surroundings where beehive is located important for health nests quality bee products. This work used capture release techniques evaluate use methodology releasing monitoring native in areas identify whether proportion green gray nature affect flying activities an landscape. We Melipona quadrifasciata (mandaçaia), Atlantic Rainforest, from three meliponaries different parts city São Paulo. travel time landscape were related up 900 m diameter meliponaries. Although we did not find relationship between return times numbers, it was noticeable there variation study indicating can be following recommended modifications.

Language: Английский

---

Gardens reduce seasonal hunger gaps for farmland pollinators

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2024, Volume and Issue: 291(2033)

Published: Oct. 1, 2024

Gardens can benefit pollinators living in surrounding farmland landscapes, but the reason for their value is not clear. are no different from many semi-natural habitats terms of quantity floral resources (pollen and nectar) they produce, timing resource supply very different, which may explain value. We show that gardens provide 15% overall annual nectar landscapes Southwest UK, between 50% 95% during early spring late summer when supplies low. therefore reduce seasonal gaps experienced by bumblebees. Consistent with this pattern, bumblebee activity increased relative to summer. An agent-based model reinforces point, showing , garden enhances colony growth survival farmland. over 90% Great Britain within 1 km a positive actions gardeners could have widespread spillover benefits across country. Given distribution around world, we highlight important interplay pollinator ecology conservation.

Language: Английский

---

The importance of wild bee communities as urban pollinators and the influence of honeybee hive density

Journal of Pollination Ecology, Journal Year: 2021, Volume and Issue: 29, P. 204 - 230

Published: Oct. 15, 2021

While urban beekeeping is on the rise, data role of wild bee communities as crop pollinators in cities still scarce. We analysed visitation rates apple, plum, cherry, pear, blackberry, raspberry, and strawberry a Bavarian city with very high honeybee density c. 19 hives/km2. During 137.5 hours observation time, we observed 52 species studied plants. more than 50 h time fruit trees flower, found that bees provided 41% total visits, honeybees remaining 59%. Honeybee hive had significantly negative effect abundance. Bumblebees appeared tolerant to poor weather conditions all other groups. Wild richness apple flowers was not impacted by flower diversity surroundings trees. Together, our results suggest species-rich areas are important for pollination success common crops, especially under unstable spring conditions. Bee-friendly management spaces should be prioritised support well increasing number cities.

Language: Английский

---

Wildness and Wild Spaces in Residential Yards: Changing Neighborhood Norms to Support Pollinator Populations

Sustainability, Journal Year: 2021, Volume and Issue: 13(22), P. 12861 - 12861

Published: Nov. 20, 2021

Insect pollinator populations, critical to the global food supply, are declining. Research has found robust bee communities in cities, which supported by diverse urban habitat and foraging resources. Accounting for 35–50% of green space, U.S. private residential yards can serve as important forage nesting sources pollinators. Incorporating wild attributes wildness, such native vegetation less intensive yard-management practices, is key. However, vegetation, its effects on local shaped social cultural preferences, norms, aesthetics, values, identities. The perfect lawn ideal a highly manicured turfgrass yard dominates neighborhood landscapes often at odds with needs As part three-year study investigating sociocultural drivers choices St. Louis, MO, USA, we interviewed 85 decisionmakers order understand about maintenance. This paper presents an emergent finding concerning how residents conceptualize talk urban-yard aesthetic, using terms “wild” “wildness”, reflect range levels demand spaces their neighborhoods. discourse wildness offers nontechnical route understanding connections between ecological consequences urbanization, human attitudes towards nature that shape biological functioning human-generated habitats.

Language: Английский

---

Income Vulnerability of West African Farming Households to Losses in Pollination Services: A Case Study from Ouagadougou, Burkina Faso

Sustainability, Journal Year: 2018, Volume and Issue: 10(11), P. 4253 - 4253

Published: Nov. 17, 2018

Urban and peri-urban agriculture (UPA) in West African countries is developing rapidly response to population growth changing consumer preferences. Furthermore, UPA offers opportunities secure income social integration for the urban poor. However, little known about household (HH) security effects of ongoing shift land use from crops that do not rely on insect pollinators fruit development (e.g., sorghum millet) pollinator-dependent crops. In our study we developed a Household Vulnerability Index (HVI) 224 HHs along rural–urban gradient Ouagadougou, Burkina Faso. The HVI indicates which degree total HH revenue could be affected by decline pollinators. specific relative reduction agricultural ranged 0 −0.83, HHs’ up 83%, depending crops’ level pollinator dependency. Half studied (n = 108) showed an remained unaffected Nevertheless, mean was highest HHs; making these most vulnerable loss pollination services. As areas changes insect-mediated services are expected, resilient systems must consider “pollinator-friendly” landscape management.

Language: Английский

---