Publications by authors named "Mathieu Roudel"
Parasitology
September 2013
Article Synopsis
- Nosema ceranae is a prevalent microsporidian parasite affecting honeybees, with its virulence potentially influenced by genetic diversity and environmental factors.
- Researchers used a multilocus genotyping approach to analyze ten genetic markers from various N. ceranae samples taken from individual honeybees across different regions, finding high genetic diversity within single host populations.
- Despite the genetic diversity observed, the study concluded that there was no differentiation among parasite isolates, suggesting that similar N. ceranae populations infect honeybees in separate locations, with implications for understanding its evolution and selective pressures.
Article Synopsis
- Different biological, chemical, and physical stressors can combine to negatively impact the health of ecosystems, particularly affecting populations like honeybees.
- Recent research highlights that the order in which honeybees are exposed to a parasite and an insecticide can significantly influence their survival rates.
- The study found that simultaneous or sequential exposure to the microsporidian parasite and a sublethal dose of the insecticide fipronil led to a synergistic decline in honeybee survival, especially when stressors were introduced at the time of emergence, raising concerns about the management of beekeeping and broader ecological risks.
