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Nosema ceranae infection reduces the fat body lipid reserves in the honeybee Apis mellifera.
J Invertebr Pathol
November 2024
Université Clermont Auvergne, CNRS, LMGE, F-63000 Clermont-Ferrand, France. Electronic address:
Nosema ceranae is an intestinal parasite frequently found in Apis mellifera colonies. This parasite belongs to Microsporidia, a group of obligate intracellular parasites known to be strongly dependent on their host for energy and resources. Previous studies have shown that N.
View Article and Find Full Text PDFEffect of Fumagilin-B treatment timing on nosema (Vairimorpha spp.; Microspora: Nosematidae) abundance and honey bee (Hymenoptera: Apidae) colonies under winter management in the Canadian Prairies.
J Econ Entomol
June 2023
Department of Entomology, University of Manitoba, Winnipeg, MB R3T 2N2, Canada.
Fumagilin-B is used to treat nosema infection in honey bee colonies; however, it is unclear whether treatment consistently reduces Vairimorpha ceranae (Fries et al.) abundance and improves colony strength and survival in the Canadian Prairies. This study assessed spring and fall fumagillin treatments on nosema abundance, colony strength, and mortality in 2 different beekeeping regions within Alberta, using both indoor and outdoor wintering management at each site.
View Article and Find Full Text PDFOccurrence and molecular characterization of Enterocytozoon bieneusi in water buffaloes (Bubalus bubalis) in Turkey.
Acta Trop
September 2022
Department of Parasitology, Faculty of Veterinary Medicine, Erciyes University, Kayseri 38039, Turkey.
Microsporidia are obligate intracellular fungus-like parasites that infect humans and animals worldwide. However, there is limited epidemiological data on the occurrence and molecular diversity of microsporidia in buffaloes worldwide. In the present study, fecal samples of 300 water buffaloes (Bubalus bubalis) in Kayseri, Sivas, and Samsun provinces of Turkey were investigated using two nested PCR assays targeting the rRNA of E.
View Article and Find Full Text PDFEpidemiology of Nosema spp. and the effect of indoor and outdoor wintering on honey bee colony population and survival in the Canadian Prairies.
PLoS One
November 2021
Department of Biological Sciences, University of Lethbridge, Lethbridge, Alberta, Canada.
The epidemiology of Nosema spp. in honey bees, Apis mellifera, may be affected by winter conditions as cold temperatures and differing wintering methods (indoor and outdoor) provide varying levels of temperature stress and defecation flight opportunities. Across the Canadian Prairies, including Alberta, the length and severity of winter vary among geographic locations.
View Article and Find Full Text PDFConnecting the nutrient composition of seasonal pollens with changing nutritional needs of honey bee (Apis mellifera L.) colonies.
J Insect Physiol
September 2019
Carl Hayden Bee Research Center, USDA-ARS, Tucson, AZ, USA.
Free-ranging herbivores have yearly life cycles that generate dynamic resource needs. Honey bee colonies also have a yearly life cycle that might generate nutritional requirements that differ between times of brood rearing and colony expansion in the spring and population contraction and preparation for overwintering in the fall. To test this, we analyzed polyfloral mixes of spring and fall pollens to determine if the nutrient composition differed with season.
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