Archive for July 30, 2014

The Butterfly Garden: A Haven for Wild Bees

A bumble bee (bombus sp) foraging

A bumble bee (Bombus sp) foraging.

In major urban landscape such as Washington, D.C., a place like the Smithsonian Institution’s Butterfly Habitat Garden serves a valuable purpose as a rich and rewarding refuge, not only for butterflies, but also for bees. With so many flowers in bloom at the end of July, it’s easy to see that bees are very important for pollination. A bee moves from flower to flower searching for nutrient-rich nectar, which it laps up with its hairy tongue. In this process, pollen will collect on the bee’s body and be transferred from one flower to another, providing for the production of the seeds that sustain many gardens and wild-flower populations. On the hind legs of some bees, there are corbiculae, or pollen baskets.  These serve a function similar to suitcases, allowing the bees to pack lots of pollen into the baskets for the flight back home to their colony where they share their newfound resource with many others.  Solitary bees do not have pollen baskets, but species like leaf-cutter bees have very hairy abdomens, which collect a large amount of pollen.  Recently the Butterfly Habitat Garden was abuzz with a large number of bee species, including bumble-, leaf-cutter, honey, and sweat bees, all collecting resources and pollinating flowers.

-Lisa Horth is a Smithsonian Gardens Enid A. Haupt Fellow and an Associate Professor of Biology at Old Dominion University in Norfolk, Virginia, where she studies plant-pollinator interactions.

Carpenter bee (Xylocopa)

Carpenter bee (Xylocopa) with full pollen baskets.

Bumble bee (bombus pennsylvanicus)

Bumble bee (Bombus pennsylvanicus) foraging.

Bumble bee (Bombus sp)

Bumble bee (Bombus sp) foraging.

Bumble bee foraging

Bumble bee foraging.

A sweat bee (Augochlorellaa)

A sweat bee (Augochlorellaa).

Honeybee (Apis mellifera)

Honeybee (Apis mellifera).

 

July 30, 2014 at 3:00 pm 3 comments


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