The neonicotinoid thiamethoxam impairs male fertility in solitary bees, Osmia cornuta
نویسندگان
چکیده
The ongoing loss of global biodiversity is endangering ecosystem functioning and human food security. While environmental pollutants are well known to reduce fertility, the potential effects common neonicotinoid insecticides on insect fertility remain poorly understood. Here, we show that field-realistic exposure can drastically impact male fertility. In laboratory, female solitary bees Osmia cornuta were exposed four concentrations thiamethoxam measure survival, consumption, sperm traits. Despite males being higher dosages thiamethoxam, females revealed an overall increased hazard rate for survival; suggesting sex-specific differences in toxicological sensitivity. All tested sublethal (i.e., 1.5, 4.5 10 ng g?1) reduced quantity by 57% viability 42% average, with lowest concentration leading a reduction total living 90%. As match estimates pollution, this reveals plausible mechanism population declines, thereby reflecting realistic concern. An immediate required decelerate biodiversity.
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ژورنال
عنوان ژورنال: Environmental Pollution
سال: 2021
ISSN: ['1873-6424', '0269-7491']
DOI: https://doi.org/10.1016/j.envpol.2021.117106