ArticleMicrobiologyOpen2012
Seasonal variability of prevalence and occurrence of multiple infections shape the population structure of Crithidia bombi, an intestinal parasite of bumblebees (Bombus spp.).
Article in MicrobiologyOpen, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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17 citing papers in PubMed, 35 citations in OpenAlex.
- Seasonally increasing parasite load is associated with microbiota dysbiosis in wild bumblebees.mSystems · 2025Article
- The Role of Pathogens in Bumblebee Decline: A Review.Pathogens (Basel, Switzerland) · 2025Review
- The trypanosomatid (Kinetoplastida: Trypanosomatidae) parasites in bees: A review on their environmental circulation, impacts and implications.Current research in insect science · 2025Review
- Methods matter: the influence of method on infection estimates of the bumblebee parasiteParasitology · 2023Article
- Transmission of a bumblebee parasite is robust despite parasite exposure to extreme temperatures.Ecology and evolution · 2023Article
- Article
- Bee Trypanosomatids: First Steps in the Analysis of the Genetic Variation and Population Structure of Lotmaria passim, Crithidia bombi and Crithidia mellificae.Microbial ecology · 2022Article
- Pathogens Spillover from Honey Bees to Other Arthropods.Pathogens (Basel, Switzerland) · 2021Review
- The potential for parasite spill-back from commercial bumblebee colonies: a neglected threat to wild bees?Journal of insect conservation · 2021Article
- Pollinator parasites and the evolution of floral traits.Ecology and evolution · 2019Article
- Microbiome Structure Influences Infection by the Parasite Crithidia bombi in Bumble Bees.Applied and environmental microbiology · 2018Article
- Pollen extracts and constituent sugars increase growth of a trypanosomatid parasite of bumble bees.PeerJ · 2017Article
- Early gut colonizers shape parasite susceptibility and microbiota composition in honey bee workers.Proceedings of the National Academy of Sciences of the United States of America · 2016Article
- Genome of Leptomonas pyrrhocoris: a high-quality reference for monoxenous trypanosomatids and new insights into evolution of Leishmania.Scientific reports · 2016Article
- Testing Dose-Dependent Effects of the Nectar Alkaloid Anabasine on Trypanosome Parasite Loads in Adult Bumble Bees.PloS one · 2015Article
- Possible Synergistic Effects of Thymol and Nicotine Against Crithidia bombi Parasitism in Bumble Bees.PloS one · 2015Article
- Sex, horizontal transmission, and multiple hosts prevent local adaptation of Crithidia bombi, a parasite of bumblebees (Bombus spp.).Ecology and evolution · 2012Article
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3 authors at 1 institution in 1 country.
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Abstract
Ergonomic growth phases of annual social insect societies strongly influence horizontally transmitted parasites. Herein, we focused on the impact of temporal changes in host demography on the population structure of a horizontally transmitted parasite. Seasonal fluctuations in prevalence and the occurrence of multiple infections of the gut parasite Crithidia bombi were analyzed in repeatedly sampled populations of two common bumblebee (Bombus spp.) species. Prevalence of C. bombi was greatest in the middle of the foraging season and coincided with the maximal occurrence of multiple infections. Both decline later in the season. The genetic structure of the parasite population also showed strong seasonal fluctuations with a drastic decline in effective population size and an increase in linkage disequilibrium when infection rates were highest. These effects are mainly attributable to significant changes in parasite allele frequencies leading to selection of specific alleles and increasing the frequency of homozygote genotypes in the middle of the season. Within host, competition between parasite genotypes might explain the observed pattern leading to selection of these alleles, and thus a boost of homozygote genotypes in the middle of the season. Toward the end of the season, selection appears to relax and we observed a recovery in linkage equilibrium, as well as an increase in effective population size. This might be explained by genetic exchange in these trypanosomes in natural populations.
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