Is your garden bee-friendly? – City gardens promote bee parasites

Parasites are threatening pollinator populations worldwide, raising concerns for the future of our food security. How we manage our gardens in cities could impact parasite transmission among pollinators, especially bees. Researchers found that bee parasites decrease when we plant plenty of flowers to promote diverse pollinators. We also reduce parasites when we refrain from mulching our gardens, as mulch covers nests for ground-nesting bees. As spring approaches, will your garden be friendlier to bees or their parasites?

Read more

Flying on the Edge – Bees use linear features to navigate

Ever noticed how straight roads or the edges of crop fields are? Humans love turning naturally curvy land into straight lines. While land modification poses significant threats to many animals, some can take advantage of these changes. A new study found that bumble bees exploit human-made lines and edges to navigate to food sources. Taking the path most traveled may make all the difference for these bees.

Read more

Phoning the Queen with Fanning and Pheromones

Like a game of telephone, bees pass pheromones to each other by sticking their butts in the air and frantically fanning their wings. This individual behavior helps the entire group aggregate around the queen. A recent study used video recording and machine learning to understand how these pheromones are passed from bee to bee and understand collective behavior in honey bees.

Read more

Space Invaders? Exotic Bees in the Urban Landscape

One up and coming target for bee conservation has been the urban landscape, as some recent findings have indicated that cities can maintain diverse bee communities. Though on the surface these findings seem promising for bee conservation, many of these studies do not actually address whether this is a positive thing for native bees. One group of scientists decided to delve further into this topic by looking at the effects of urbanization on bee species. Specifically, they wanted to find out whether exotic bees, including the European honeybee, were found more abundantly in cities and other urban areas than in rural communities and how their presence affected native bees.

Read more

The Hunger Gaps: when flower supply fails to meet bee demand

Wild bees are indispensable pollen-transporters that support and maintain diverse plant communities in nature, but in discussions about the well-being of bees, they tend to lose the spotlight to their honeybee cousins. One issue where both wild bees and honeybees are struggling, however, is in facing the lack of food continuity throughout the growing season. Mapping the “hunger gaps” for foraging bees, and working to close such gaps, is a key issue for bee conservation.

Read more

Mentally “exhausted” honey bees—petroleum exhaust makes bees learn slower and forget faster

Scent pollution from exhaust fumes could disrupt the relationship between honey bees and the flowers they feed from and pollinate. The smell of flowers invites pollinators to come and feast on their nectar. But exhaust masks those smells, making it harder for bees to learn and remember the floral scents that cue them in to flowers.

Read more