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REBECCA VARNEY

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News        

Conchologists of America Grant

6/12/2018

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More good research news! The Conchologists of America funded my research proposal! This funding will allow me to do much more in depth comparisons of transcription within the radula. By dividing the teeth up into four "phases" of iron deposition, we will be able to ask exactly what is happening as the teeth develop.

I just got back from the Florida Keys, and now have 40 samples in the freezer, ready for RNA extraction and sequencing. Very excited to move this project forward!
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EO Wilson Biodiversity Fellowship

6/11/2018

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The University of Alabama has a special connection to EO Wilson, as he got his bachelor's and master's degrees here. In fact, there is still a sketch of an ant he drew on the wall in my building.
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In his honor, each summer the UA Biology Department grants three students with fellowships to assist them in summer field work. I'm delighted to say that I was awarded one of these fellowships, along with fellow graduate students Sergei Bombin and Phoenix Rogers! Sergei is a budding phycologist (... can a phycologist be "budding?"), while Phoenix works on aquatic insects.

I'll be using my fellowship for expenses related to our summer field work. Congrats to all three of us!
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Chitons, Welcome to UA!

6/9/2018

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It's been a week now, so I think it's safe to finally say that we successfully transported live chitons back to Alabama and they are established in our aquarium. These animals will be the ones we try to spawn later this year to study development!

We know that in the wild, chitons tend to find a special rock and use it as a "home", returning to it after each night of feeding to spend the day sheltered in their spot. We thought that our chitons would perhaps each find a "home" rock in the tank, and remain relatively stationary.

They don't. Not visible: the three other chitons *inside* the protein skimmer.

But so far my morning headcounts (headvalve counts?) have stayed consistent, so here's hoping they don't stray too far. I have looked into screening the top if needed.
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Field Work in Florida, and Worms

6/4/2018

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I just got back from about three weeks in Florida, two weeks of which were spent at Fort Pierce's Smithsonian Marine Station and in the Florida Keys. The marine lab was a wonderful place to be, full of welcoming scientists who were admirably tolerant of our team's buckets and buckets (and buckets!) of sand samples.

We were looking specifically for nematodes with our collaborator Ashleigh Smythe. I learned so much about a group that I had previously overlooked, and even attempted to key a couple out. If you've never tried to key out a nematode, make sure you have a brilliant nematologist with you to make it fun instead of impossible. I even now have a favorite group, the Stilbonematidae, which have an incredible ability to "farm" bacteria on their own bodies for food! They are, and I use this word quite seriously despite the fact that I'm describing a nematode, BEAUTIFUL. Definitely look up some SEM images - they look like an intricate braid.

We also SCUBA dived for sand samples in the Florida Keys, and of course collected chitons! I also got to hold a sea hare, find kinorhynchs and gnathostomulids, meet some microscopic sipunculids, and saw my first pycnogonid (sea spider). What a trip!
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