The Lizard Log

The Langkilde Lab in Action


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The Natural State

Happy Memorial Day!

I am happy to report that the “uninvaded” team has returned to PA, lizards in hand–or bag as it were. Our team, consisting of Braulio,  Caty, and myself, traveled to Tennessee and Arkansas. Arkansas prides itself on being “The Natural State” for its “natural scenic beauty, clear lakes and streams, and abundant wildlife.” I can’t speak to most of that, but it does have lizards!

Fence lizard with a regenerating tail.

Fence lizard with a regenerating tail.

Rainy and overcast days slowed us down a bit. As ectotherms, lizards rely on external sources of heat, which means they like to bask in sunny spots in order to warm up. The thick clouds didn’t provide many good basking opportunities, but thankfully a few lizards made an appearance in the brief moments of sun.

Sometimes fence lizards like rocky habitat.

Sometimes fence lizards like rocky habitat.

2blendinMany other lizards like to bask on trees.

We did see a few sunny days, which gave Braulio and Caty the opportunity to catch their first lizards.

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Braulio with a Tennessee lizard.

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One of Caty’s first catches!

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Lizard selfies are the best selfies.

We even managed some “expert” catches, on more than one occasion slowly driving by a basking lizard and noosing it through the open car window.

Because we were looking for females, we of course became experts at catching males. One male lizard really hoped I was a tree. We tried to return him to his log, but on two separate occasions he ran up my leg. Sorry little guy!

Nope, not a tree.

Nope, not a tree.

Another male, pictured below, really surprised me. Lizards vary in coloration, but not usually by much. I’ve never seen a fence lizard so dark!

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A very dark fence lizard. His chest badges were impressive as well!

After two weeks of catching, we headed back to the lab. Our females are now happily housed in their nesting boxes, and one has laid her first clutch of the season. We’re all excited to see the resulting hatchlings!

Check back soon for more stories and photos from the field as well as updates on the specific research projects happening this summer.

We even spotted a fence lizard on a fence. So satisfying. A fence lizard on a fence. So satisfying.


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All Good Things…

There is unrest in the Langkilde Lab. Several members have declared their intention to graduate and leave the Penn State University.

This graduatist movement, under the leadership of the mysterious Doctor Thawley, will make it difficult for the limited number of graduate students left to maintain scientific rigor and order in the fence lizard universe.

Principal Investigator Tracy, the Head of the Biology Department, returns to the field to orchestrate the critical succession of power and saurian expertise in the upcoming research season….

A More Dramatic Version…


The past few weeks have been eventful ones in the Langkilde Lab. Gail and I were both repping the lab at the inaugural Graduate Student Awards Luncheon. I received the Intercollege Graduate Student Outreach Achievement Award, an award close to my heart, for bringing research to the community and “commitment to advancing the welfare of the public through scholarly pursuits.” Gail received her highly prestigious Penn State Alumni Association Dissertation Award which included a very spiffy and heavy Distinguished Doctoral Scholar Medal. Previous lab members have received both of these awards, and we hope that our new lab members will continue this tradition of excellence and outreach!

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Gail receiving her totally legit medallion from Penn State President, Dr. Eric Barron.

Gail and I also both graduated this past Sunday. It was a great chance to hang out in the last row of the huge auditorium and crack jokes with Tracy, observe the diverse footwear of graduating graduate students, and attempt to determine the school with the most awesome PhD robes.

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We were totally serious throughout the entire two hour ceremony.

Unlike some other awards ceremonies (*cough* Awards Luncheon *cough*), we were allowed to sit and walk together which was great. None of us tripped while negotiating the steep, narrow stairs to the stage, and I even managed to shake the President’s hand with something approaching poise.

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I was the only graduate wearing formal Birkenstocks at the ceremony.

Afterwards, we gathered outside with our families and friends for a few pics to document our snazzy regalia and the fact that an institute of higher learning actually saw fit to give us advanced degrees.

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That’s a wrap!

Lab Undergraduate Extraordinaire, Mark Herr, graduated as well (though we have no photographic evidence of this). Mark has worked in the lab for four years and published several papers. In recognition of his work, Mark received several lab commendations, including a certificate of excellence for Use of the Word “Devastating” on a Daily Basis and the Award for Forcing the Creation of a Special SSAR Award for Undergraduates.

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Mark Herr is recognized for his efforts to reintroduce large mammalian predators to control overpopulation.

In spite of these losses, a new hope has arisen in the next generation of lab graduate students and post-doctoral scholars.

Tracy is leading the bulk of the lab force, including post-doc Kirsty and graduate students Cam, Dustin, David, and Michaleia, to Solon Dixon, where an old ally, Nicole Freidenfelds, will help them discover clues as to how maternal stress hormones influence behavior, stress physiology, and metabolism.

Gail has volunteered for one final mission in the field: training a team of lizard neophytes including Braulio and Caty to capture fence lizards, especially gravid females, at sites in Arkansas and Tennessee that remain uninvaded by fire ants. This team will return to the lab and allow these female lizards to lay their eggs. They hope to determine if ladies bearing typically male characteristics, in this case blue throat badges (“beards”), also have bearded offspring.

Stay tuned this summer for more exciting developments in the fence lizard universe!