Individual and combined impacts of sulfoxaflor and Nosema bombi on bumblebee (Bombus terrestris) larval growth. [PDF]
Proc Biol Sci, 2020 Sulfoxaflor is a globally important novel insecticide that can have negative impacts on the reproductive output of bumblebee ( Bombus terrestris ) colonies. However, it remains unclear as to which life-history stage is critically affected by exposure. One hypothesis is that sulfoxaflor exposure early in the colony's
Siviter H +3 more
europepmc +7 more sources
Correction to 'Individual and combined impacts of sulfoxaflor and Nosema bombi on bumblebee (Bombus terrestris) larval growth'. [PDF]
Proc Biol Sci, 2021 Siviter H +3 more
europepmc +4 more sources
Investigating the influence of diet diversity on infection outcomes in a bumble bee (Bombus impatiens) and microsporidian (Nosema bombi) host-pathogen system. [PDF]
Front Insect Sci, 2023 Diet can have an array of both direct and indirect effects on an organism’s health and fitness, which can influence the outcomes of host-pathogen interactions. Land use changes, which could impact diet quantity and quality, have imposed foraging stress on important natural and agricultural pollinators.
Martinez A, Calhoun AC, Sadd BM.
europepmc +3 more sources
How Population Structure and Nest Membership Shape Pathogen Patterns in Bumble Bees. [PDF]
Mol EcolABSTRACT Host density, genetic diversity and social groups are key factors influencing pathogen transmission in wildlife populations, but their interactions remain poorly understood in insects. Islands can provide natural laboratories with distinct populations that vary in density and genetic diversity, whereby dense, genetically homogeneous ...
Dobelmann J, Wilfert L.
europepmc +2 more sources
Pesticide and Pathogen Exposure Causes Idiosyncratic Gene Expression Responses Across Four Diverse North American Bumble Bee Species. [PDF]
Mol EcolABSTRACT Bumble bee (Bombus Latreille) populations of certain species have declined precipitously in North America over several decades. Hypotheses for declines include exposure to the pathogen Nosema bombi and neonicotinoid pesticides. Importantly, populations of some bumble bee species remain stable despite their presumed exposure to these same ...
Martín-Blázquez R +4 more
europepmc +2 more sources
Urban landscapes tend to increase the presence of pathogenic protozoa, microsporidia and viruses, but likely decrease the abundance of viruses in wild bees and wasps. [PDF]
Insect Sci• The bees Anthophora plumipes and Osmia cornuta had a higher occurrence probability of the neogregarine protozoan Apicystis bombi in more fragmented urban areas.• In the bee Halictus scabiosae and wasp Polistes dominula, hotter urban areas increased the likelihood of occurrence of viruses.• The viruses were found to be replicative in the samples, and ...
Ferrari A, Cilia G, Polidori C.
europepmc +2 more sources
Microbial Pressure and Social Immunity: Bumble Bees Increase Brood Hygiene After Exposure to a <i>Bacillus thuringiensis</i>-Based Biopesticide. [PDF]
Ecol EvolIn social insect colonies, diseased or dead brood is identified and removed by workers to prevent the infection of the whole colony. Here, bumble bee larvae exposed to a bacterium (Bacillus thuringiensis ssp. aizawai (strain: ABTS‐1857)) based biopesticide were removed more frequently than wounded or untreated control larvae. This shows that bumble bee
Scheffler M +4 more
europepmc +2 more sources
Immune priming of honey bees protects against a major microsporidian pathogen. [PDF]
Pest Manag SciWe immune‐primed honey bees at two developmental stages in the laboratory and the field with heat‐killed Nosema ceranae spores. When subsequently fed live spores, immune‐primed adults had lower infection levels. Abstract BACKGROUND Honey bees face significant threats from pathogens like Nosema ceranae, a microsporidian parasite that contributes to ...
Nieh JC +6 more
europepmc +2 more sources
Microbial Evolution in Allodapine Bees: Perspectives From Trophallactic, Socially Plastic Pollinators. [PDF]
Evol ApplABSTRACT This review seeks a deeper functional understanding of wild bee microbiomes by focusing on a tribe of bees where natural history and behavioral ecology are well known but investigations of microbiology are just beginning. Opportunities to improve our future knowledge of pathogens to insect pollinators are explored—which have broad ...
Tierney SM, Jeffries TC, Koch H.
europepmc +2 more sources
European Journal of Protistology, 2022 Among stressors affecting bee health, Nosema microsporidia are prevalent intracellular parasites. Nosema apis and Nosema ceranae have been described in honey bees (Apis spp.), while Nosema bombi has been described in bumble bees (Bombus spp.). Although available molecular methods serve as a complement to microscopic diagnosis of nosemosis, they do not ...
Babin, Aurélie +4 more
openaire +3 more sources