Prevalence and Distribution of Three Bumblebee Pathogens from the Czech Republic [PDF]
Insects, 2022 Bumblebees are significant pollinators for both wild plants and economically important crops. Due to the worldwide decrease in pollinators, it is crucial to monitor the prevalence and distribution of bumblebee pathogens.
Alena Votavová +5 more
doaj +2 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
Urban habitat fragmentation and floral resources shape the occurrence of gut parasites in two bumblebee species [PDF]
Ecology and Evolution, 2023 Urbanization and the expansion of human activities foster radical ecosystem changes with cascading effects also involving host‐pathogen interactions. Urban pollinator insects face several stressors related to landscape and local scale features such as ...
Nicola Tommasi +5 more
doaj +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
Gut microbiome of Vespa orientalis: functional insights and potential honey bee pathogen dynamics [PDF]
Animal MicrobiomeVespa orientalis, the oriental hornet, is an emerging predator of honey bees whose ecological impact and microbial ecology remain poorly understood. Here, we present the first detailed characterisation of its gut microbiota by integrating 16S rRNA gene ...
Simone Cutajar +7 more
doaj +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
Ecological and social factors influence interspecific pathogens occurrence among bees [PDF]
Scientific ReportsThe interspecific transmission of pathogens can occur frequently in the environment. Among wild bees, the main spillover cases are caused by pathogens associated with Apis mellifera, whose colonies can act as reservoirs.
Rossella Tiritelli +17 more
doaj +2 more sources