Back

Nosema ceranae infection disrupts nestmate recognition in honey bees

Huang, Z. Y.

2026-08-06 animal behavior and cognition
10.64898/2026.08.02.742297 bioRxiv
Show abstract

Social immunity reduces pathogen transmission in eusocial insects by collectively detecting and excluding infected or foreign individuals. In honey bees (Apis mellifera), guard workers enforce colony boundaries through nestmate recognition. Here we show that infection with the microsporidian parasite Nosema ceranae weakens this defense. Across 600 behavioral assays, infected workers were 45% less likely to be rejected than uninfected controls. Infection was also associated with modest but significant shifts in cuticular hydrocarbon profiles, the primary cues underlying nestmate recognition. Multivariate analyses revealed modest but significant treatment-associated differences in CHC composition that were not attributable to dispersion effects. These findings demonstrate that infection can degrade the reliability of recognition cues and thereby compromise a core behavioral component of social immunity.

Matching journals

The top 8 journals account for 50% of the predicted probability mass.

50% of probability mass above

"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.