(FAPESP) A new study shows that the larvae of the Brazilian stingless bee Scaptotrigona depilis depend on interactions between three different species of fungus to complete their development and reach adulthood. “The new findings demonstrate that the interactions between these social insects and their microbiota are much more complex than we can imagine. This should serve as a warning against the indiscriminate use of pesticides in agriculture, since many are lethal to fungi.”
(Phys.org/Universitaet Mainz) Caffeine is a compound present in various plant species and is known to stimulate the central nervous system of honey bees as well as humans. Some plants add caffeine to their nectar with the aim of manipulating the activity of pollinators. However, caffeine does not appear to influence the behavior of a stingless bee that is a main pollinator of coffee plants.
(Phys.org/University of Sussex) A queen honey bee might mate with ten to twenty males. But a queen of stingless bees found in tropical countries like Brazil normally only mate with one male. According to this new paper, that may be to reduce the chance of execution.
(National Geographic) Since the 1930s, Maya beekeepers have made the Yucatán into a world-class honey producer. But the rapidly expanding presence of Old Colony Mennonites, who are transforming large swathes of land into agricultural fields, could change that. Beekeepers say that the large-scale agriculture and the genetically modified soy planted by the Mennonites is killing their hives and contaminating the supply of honey with pesticides. In 2012, the beekeepers sued the government and won—resulting in a supreme court ban on transgenic soybeans four years ago. But on the ground, little has changed.
TBR Editor: That story this morning about the Taiwanese woman with sweat bees in her eye seemed strange indeed. But the smart folks at The Bees in Your Backyard and Ethnobeeology have shed some light on the matter: “These were not Halictidae sweat bees as people are assuming but tiny tropical Meliponine stingless bees.” Check out this 2009 paper from JSTOR or page 132 of The Bees in Your Backyard book for more info.
TBR Editor: We have a contender for Strangest Bee Story of the Year. The important take-away: Sweat bees are not dangerous to humans – this is just a bizarre series of events.