This Sunday the UK celebrated World Bee Day (May 20th); the first year of the now to be annual UN awareness event aimed at increasing our sensitivity to the global importance and increasing struggle of pollinators. Whilst the event hopes to increase understanding of pollinators generally, including butterflies, moths, birds and bats, the focus is strongly on wild and managed bees for their economic importance. And justly so; bees visit over 70 crops in the UK alone and are worth billions worldwide in the pollination service they provide. However, it would be difficult to miss the worryingly-frequent headlines warning of bee decline both in the UK and globally as a result of human activities.
Yesterday I cherished the start of spring in England by attending an event devoted to pollinators and pollination at the University of Reading. Most presentations at this meeting organised by the Royal Entomological Society were understandably about bees, but we also heard a few talks highlighting the importance of other pollinator groups.
For about five years now the media has been broadcasting alarming news about declining bee populations especially in Europe and North America. While the amounting evidence points to neonicotinoid insecticides being a major cause for the decline, I learnt yesterday that the situation is actually rather complex, other stressors are also involved, and scientists are still eagerly trying to form a complete understanding of the issue.