Hubbard Fellowship Blog – A Few of Anne’s Favorite Bees

Guest Post by Anne Stine, Hubbard Fellow:

I just finished a wonderful pollinator work shop with Mike Arduser here at the Platte River Prairies.  Much of this workshop involved catching bees, using a dichotomous key to identify them to genus, and then pinning the bees on-site.  I am pretty pleased with my collection, and I’ve decided to share a few of the fascinating factoids that are buzzing (I am so, so sorry) around my head.

Agapostemon virescens is my new favorite bee.  They are eusocial, but not tyrannically so.  There is no queen, all females can reproduce; they just choose to share a nest (from “The Bee Genera of Eastern Canada”; Packer, Genaro, and Sheffield 2007).  I adore these utopian bees. They also happen to be gorgeous.  I’ve included a picture of the male below.  The female looks similar, but is all emerald without the striped abdomen.

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Agapostemon virescens – Photo by Anne Stine

Svastra obliqua is my second favorite bee.  Their scopa (branched, pollen carrying hairs) are so exaggerated, they look like they are wearing giant fuzzy chaps.  Big and easy to spot, they hang around annual sunflowers and could be confused (if you were squinting and using your peripheral vision) with a small bumblebee.

Svastra

Svastra obliqua – Photo by Anne Stine

The Megachile family is another good group.  Instead of having scopa on their legs, they carry pollen on their abdomens.  This placement requires them to rub their bellies all over a flower when they forage.  It’s a pretty amusing mental picture.  Another reason to love the Megachile is that they can be field ID’d by ear.  After conferring with my fellow pollinator work shop participants, we decided that, if the bumblebee is a Harley (low pitched, rumbling “BZZZzz”, then the Megachile is the sportbike (they make a high pitched “eeeeee” sound when they forage).  Once you hear their whine, you won’t forget it.  Megachiles are leafcutters, and they excise circular patches from leaves to build their nests.  If you see a leaf that looks like a crazed administrator took a hole-punch to it, you should start listening for the Megachile whine.

Hymenoptera bonus: the cuckoo wasp.  She’s wearing a rhinestone suit of armor.

Cuckoo wasp

Cuckoo wasp – Photo by Anne Stine

There is so much more I wish to share!  I foresee future posts about buzz pollination, specialists vs. generalists, combative cleptoparasites, and the potential for the hymenopteran community as an indicator of restoration success.

Hymenopterans are beautiful, sometimes adorable, with unusual life histories that make their study easy to enjoy. I am so pleased I get to spend time with these creatures during my fellowship here on the Platte River Prairies.

Photo of the Week – August 15, 2013

I took my two sons up to the Niobrara Valley Preserve earlier this week for one last outing before school started.  It was fun to see the Preserve through their eyes.  While I was looking at impacts from last year’s fire and grazing and noting ecological interactions between sunflowers and insects, the boys were chasing toads and just having fun bouncing along through the sandhills.

The big selling point to get the kids to tag along was the promise of seeing bison.  After driving around the 10,000 acre pasture for more than two hours without a bison sighting, I was getting a little nervous about keeping that promise.  Just as I was about to give up, the radio crackled and Richard (our bison manager) called to say he’d spotted bison at the opposite end of the pasture while he was working on something else.  About half an hour later, we found them and the trip was officially a success.

Here are a few photos from the two days:

My son John, standing at the welcome sign for the Preserve.

My son John, standing at the welcome sign for the Preserve.  Did I mention there were some sunflowers blooming in the sandhills this year?

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John spotted this turtle along the road into the Preserve, so we stopped to have a closer look.

John spotted this turtle along the road into the Preserve, so we stopped to have a closer look.

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Here's Daniel, standing among the weedy regrowth under the burned out pines north of the river.

Here’s Daniel, standing among the weedy regrowth under the burned out pines north of the river.

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The Niobrara river from a high vantage point.

The Niobrara river from a high vantage point.

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It was a relief when we finally popped over a hill and saw bison spread out below us.

It was a relief when we finally popped over a hill and saw bison spread out below us.

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Bison

The bison seemed sleek and healthy, clearly thriving in the abundant regrowth after last year’s wildfire.