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As pollinator decline is increasingly reported in natural and agricultural environments, cities are perceived as shelters for pollinators because of low pesticide exposure and high floral diversity throughout the year. This has led to the development of environmental policies supporting pollinators in urban areas. However, policies are often restricted to the promotion of honey bee colony installations, which resulted in a strong increase in apiary numbers in cities. Recently, competition for floral resources between wild pollinators and honey bees has been highlighted in semi-natural contexts, but whether urban beekeeping could impact wild pollinators remains unknown. Here, we show that in the city of Paris (France), wild pollinator visitation rates are negatively correlated to honey bee colony densities present in the surrounding landscape (500m -slope = -0.614; p = 0.001 -and 1000m -slope = -0.489; p = 0.005). Regarding the morphological groups of wild pollinators, large solitary bee and beetle visitation rates were negatively affected by honey bee colony densities within a 500m buffer (slope = -0.425, p = 0.007 and slope = - 0.671, p = 0.002, respectively) and bumblebee visitation rates were negatively affected by honey bee colony density within a 1000m buffer (slope = - 0.451, p = 0.012). Further, lower interaction evenness in plant-pollinator networks was observed with high honey bee colony density within a 1000m buffer (slope = -0.487, p = 0.008). Finally, honey bees tended to focus their foraging activity on managed rather than wild plant species (student t-test, p = 0.001) whereas wild pollinators equally visited managed and wild species. We advocate responsible practices mitigating the introduction of high density of honey bee colonies in urban environments. Further studies are however needed to deepen our knowledge about the potential negative interactions between wild and domesticated pollinators.
This article was published in the following journal.
Name: PloS one
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The enrolled children would be randomized to one of the groups 'study group' or 'Honey dressing group' or 'Group I' (honey dressing containing Active Leptospermum Honey also known as Manuk...
Evaluate the effect of honey on perineal tears or episiotomies pain associated or not with anterior vulvar tears after vaginal delivery.
An independent state consisting of three islands in the Mediterranean Sea, south of Sicily. Its capital is Valetta. The major island is Malta, the two smaller islands are Comino and Gozo. It was a Phoenician and Carthaginian colony, captured by the Romans in 218 B.C. It was overrun by Saracens in 870, taken by the Normans in 1090, and subsequently held by the French and later the British who allotted them a dominion government in 1921. It became a crown colony in 1933, achieving independence in 1964. The name possibly comes from a pre-Indoeuropean root mel, high, referring to its rocks, but a more picturesque origin derives the name from the Greek melitta or melissa, honey, with reference to its early fame for its honey production. (From Webster's New Geographical Dictionary, 1988, p719 & Room, Brewer's Dictionary of Names, 1992, p330)
A sweet viscous liquid food, produced in the honey sacs of various bees from nectar collected from flowers. The nectar is ripened into honey by inversion of its sucrose sugar into fructose and glucose. It is somewhat acidic and has mild antiseptic properties, being sometimes used in the treatment of burns and lacerations.
The medical use of honey bee products such as BEE VENOM; HONEY; bee pollen; PROPOLIS; and royal jelly.
A family of structurally related proteins that are constitutively expressed and that negatively regulate cytokine-mediated SIGNAL TRANSDUCTION PATHWAYS. PIAS proteins inhibit the activity of signal transducers and activators of transcription.
A receptor for MACROPHAGE COLONY-STIMULATING FACTOR encoded by the c-fms proto-oncogene (GENES, FMS). It contains an intrinsic protein-tyrosine kinase activity. When activated the receptor undergoes autophosphorylation, phosphorylation of down-stream signaling molecules and rapid down-regulation.