WebFeb 15, 2011 · We describe the anatomy of the ovary of the bumblebee Bombus terrestris using 3D reconstruction by confocal microscopy. We found that an oocyte is … WebOct 1, 2016 · In studies of queen pheromone in honeybees, exposure to a synthetic blend resulted in 50% reduction in the rates of ovary activation , whereas studies in a stingless bee species found a greater than 50% decrease in ovary activation rates in workers exposed to a queen extract . For oocyte size, the power to detect a 50% reduction or …
General and species-specific impacts of a neonicotinoid ... - PubMed
WebJan 1, 2007 · Isolated bumblebee workers, Bombus impatiens Cresson 1863, developed their ovaries to produce laying-sized eggs in 11 days, but did so 5 days faster in … WebBumblebees are furry, round insects that live mostly in temperate climates in the Northern Hemisphere. There are more than 250 species of bumblebees, belonging to the genus … pinocchio\\u0027s father\\u0027s name
General and species-specific impacts of a neonicotinoid insecticide …
WebDec 9, 2024 · Some parasites are known to affect bumble bee reproduction, but little is known about their prevalence in North America or how they affect queen success. Only 38% of wild-caught B. huntii and 51% wild-caught B. vosnesenskii queens collected between 2015 and 2024 initiated nests in the laboratory. WebFeb 20, 2024 · However, the two non-honeybee species studied showed no association between specialization and ovary activation. Here we investigate the bumblebee B. impatiens because it has the most extensively studied pollen/nectar specialization of any bumblebee. We show that ovary size does not differ between pollen specialist, nectar … WebOct 1, 2024 · insect icideexp osurean dbumble beelar valdevel opment. Bumblebee workers develop thei r ovaries when the founding queen is ab sent (A laux et al ., 2007; Amsa lem et al. , 2009) an d micro - steins south 27th street