Co-exposure to a honeybee pathogen and an insecticide: synergistic effects in a new solitary bee host but not in Apis mellifera DOI
Rafaela Tadei,

Giovanni Cilia,

Elaine Cristina Mathias da Silva

et al.

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2025, Volume and Issue: 292(2042)

Published: March 1, 2025

Pesticides and pathogens are major drivers of bee declines. However, their potential interactions poorly understood, especially for non-Apis bees. This study assessed the combined effects infestation by honeybee pathogen Vairimorpha ceranae chronic exposure to insecticide flupyradifurone on Osmia bicornis Apis mellifera. We investigated whether V. could reproduce in a new solitary host (O. bicornis) sublethal lethal pesticide, alone combination. also analysed interactive proliferation survival two species. Newly emerged bees were orally infected with 100 000 spores then exposed ad libitum at field-realistic concentrations. showed, first time our knowledge, that can replicate midgut O. bicornis, causing histological damage, impaired phototactic response, reduced food consumption decreased longevity. The pathogen-pesticide combination caused synergistic effect leading an abrupt decline. In A. mellifera, showed antagonistic effects, but pesticide promoted proliferation. Our results warn against spillover multiple stressor

Language: Английский

Co-exposure to a honeybee pathogen and an insecticide: synergistic effects in a new solitary bee host but not in Apis mellifera DOI
Rafaela Tadei,

Giovanni Cilia,

Elaine Cristina Mathias da Silva

et al.

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2025, Volume and Issue: 292(2042)

Published: March 1, 2025

Pesticides and pathogens are major drivers of bee declines. However, their potential interactions poorly understood, especially for non-Apis bees. This study assessed the combined effects infestation by honeybee pathogen Vairimorpha ceranae chronic exposure to insecticide flupyradifurone on Osmia bicornis Apis mellifera. We investigated whether V. could reproduce in a new solitary host (O. bicornis) sublethal lethal pesticide, alone combination. also analysed interactive proliferation survival two species. Newly emerged bees were orally infected with 100 000 spores then exposed ad libitum at field-realistic concentrations. showed, first time our knowledge, that can replicate midgut O. bicornis, causing histological damage, impaired phototactic response, reduced food consumption decreased longevity. The pathogen-pesticide combination caused synergistic effect leading an abrupt decline. In A. mellifera, showed antagonistic effects, but pesticide promoted proliferation. Our results warn against spillover multiple stressor

Language: Английский

Citations

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