Year: 2012 Page 43 of 47

The Loss of a Critical Tool in Anole Biology

Today marks a sad day in the history of anole biology: the anole hunter’s best friend has just gone out of production.  Before explaining what I mean, I need to provide some additional details for the uninitiated.  Most anoles are caught primarily with a lasso made of dental floss attached to the end of a pole.  We’ve debated the best material for making lassos but haven’t spent much time on the poles (except here).  Although just about anything ranging from a stick to a golf club can be used as a lizard catching pole, the best lizard poles are generally fashioned from fishing rods.  Fishing rods are ideal for lizard catching because they are both light and long.  For many years, the biggest challenge associated with the use of fishing poles was that they can be relatively difficult to transport.  Rods that could telescope out to 12-20′ generally had only three or four segments, meaning that even a fully collapsed rod was 4-5′ long (too long to be easy to travel with or carry around in the field).  This problem was solved a number of years ago when Cabela’s began producing a new line of telescoping panfish rods that could extend from just over a foot to 10-14′ (they’re no longer listed in the Cabela’s catalogue but you can still find prices and product information at some on-line retailers like Yahoo).  If you check out the reviews, you’ll see that people have used these poles for everything from fishing to herping to displaying “worship banners.”  These inexpensive Cabela’s rods have been my primary anole catching tool for over a decade.  I was deeply saddened when I learned today that Cabela’s will no longer be filling orders for their telescopic panfish rods.  We actually placed this order weeks ago and have been told they were on back-order until today, when we were told simply that our order could not be filled and was being cancelled.  I guess we’re going to have to go through and repair all those broken rods we accumulated over the past decade…

 

Anoles Will Be Featured in a Harvard Museum of Natural History Talk

Calling all Boston-area anole enthusiasts! This Saturday I will be giving a lecture at the Harvard Museum of Natural History (HMNH) through their Adult Classes program. I will be giving the first talk in a three-part “Topics in Evolution” series, and my focus will be on explaining Convergent Evolution, Adaptation, and Sexual Selection. We know that anoles are a fantastic model system for each of these topics, so you can expect that they will be prominently featured. I will discuss community convergence in Anolis lizards, provide laboratory exercises using ethanol-preserved specimens, and discuss anoles in the public galleries of the Museum. If you’re broadly interested in anoles and in evolution, this might be a fun event for you!

Working Hard for a Meal

httpv://www.youtube.com/watch?v=u0bkDhKeeQ4

Thanks to the former student, who sent me the link.

Fear of Lizards Revisited

Previous posts and associated comments have discussed Scoliodentosaurophobia (here and here) and its prevalence in some anole-rich regions of the Caribbean. I’ve noticed similar attitudes in the US Southeast. In fact, a woman in South Carolina once begged me to kill all the “bugs” (juvenile A. carolinensis) in her bedroom because they disgusted her so much. One interesting way to counter this aversion may be through a public celebration and discussion of lizards. Yaihara Fortis Santiago did just this in an article recently published in El Nuevo Dia, which highlights the well-known lizards of Puerto Rico. Although the article focuses mainly on Sphaerodactylus and Saul Nava’s plans to replicate a recent experiment conducted by Duke’s Manuel Leal, you will notice that the featured photograph is not of a sphaero at all … it’s an anole! Still the world’s most beloved lizard.

Anyone else with links to articles about anoles published in their country of origin?

Anolis Research Stirs Up Evolution-Creationism Controversy

On Sunday, the Washington Post published a nice news article covering the recent study on island colonization and adaptation in anoles (pdf now available here). Very quickly, back-and-forth exchanges appeared in the paper’s online comments section, but most of them were debates about evolution vs. creationism/intelligent design, as well as invectives, insults, and ad hominem attacks. The same thing happened when I posted a story on the anole genome and its utility for the study of evolution on a National Geographic news website. Who knew that anole research was so pivotal to the evolution/creationism controversy? Or that it could bring out the worst in so many?

Appended below are the 77 comments that had appeared in the Washington Post by mid-afternoon on Monday.

Your Comments On:

Castaway lizards put evolution to the test

By , Published: February 4

77

Comments

lynnecatlover
12:52 AM EST
Please hope that the little beasts survived and flourished with shorter hind legs, of course !
akuperma1
2/5/2012 4:48 PM EST
So the key to evolution is a superior being manipulating things. From a lizard’s perspective, what’s the difference between a biologist and a diety?

Tales of Notorious Reptile Smugglers

Stolen World: A Tale of Reptiles, Smugglers, and Skulduggery by Jennie Erin Smith is a page-turning historical account of the most notorious reptile smugglers in the United States.  Many of the stories in Stolen World are derived from first-hand accounts provided by a core group of old-school smugglers, most notably Hank Molt and Tom Crutchfield.  I was shocked at how open these folks were about their practices, particular given that some of them are still actively collecting, importing, and selling rare reptiles.  Indeed, some of the book’s primary subjects now seem to regret their decision to share so much with Smith (I’ll return to this point later).

Anole Book Wins Medal from National Academy

Congratulations to Anole Annal’s blogger Jonathan Losos on receiving the National Academy of Science’s Daniel Giraud Elliot Medal, which is awarded every four years for “meritorious work in zoology or paleontology published in a three- to five-year period.”  The NAS recognized Losos for his “novel and penetrating evolutionary studies of adaptive radiation in vertebrates,” many of which are summarized in his recent book on anoles.  The Daniel Giraud Elliot Medal‘s list of previous recipients reads like a who’s who of prominent 20th century ecologists and evolutionary biologists, and includes the man who coined the term adaptive radiation (Henry Fairfield Osborn ’29) and several of the main architects of the modern synthesis (Dobzhansky ’41, G. G. Simpson ’44 & 65, Sewall Wright ’45, and Ernst Mayr ’67).  The fact that the medal is the size of dinner plate has not deterred Losos from wearing it daily.

A Yellow Knight Anole

Photo courtesy Paul Richards

Paul Richards and Kirsten Nicholson found this unusual knight anole while conducting their radio-tracking study on this magnificent species. Richards recalls: “I think we found him on the west edge of the “microbiome” of the Gifford Arboretum. I recall showing it to a well known herpetologist who claimed it was a temporary color change, so we held it overnight. It looked identical in the morning and we released it. I honestly can not remember if we bead tagged it or not (that would be stupid but…). We never saw that individual again, but I also cannot recall how far into the study we were, so our regular searches could have ended soon after. Local lizard fanciers have told me they have seen these color morphs before, so it is apparently somewhat common.”

Castaway Lizards: Experimental Studies of Lizard Colonization and Founder Effects

httpv://www.youtube.com/watch?v=fAgxpB9fn50

Duke University Press Release. Check out the cool video!

In 2004, Hurricane Francis wiped out all Caribbean lizards found on the keys near the Bahamas.

Seeing an opportunity to study evolution, Duke biologist Manuel Leal and his colleagues took lizards from a larger, nearby island, paired them up and then put the couples on seven of the small keys.

The scientists came back year after year to check on their experiment.

They observed the lizards’ legs getting shorter over time. But, the lizards’ legs did not all shorten to the same size, a hint of the founder effect, where traits from a founding species persist after years of adaptation. It is one of the rare times scientists have seen this phenomenon in nature.

The first results of the experiment were published in a Feb. 2 Science Express article.

You can read more about the study here. And how’s this for a newspaper article title: “Lowly lizards settle ‘founder effect’ theory“?

Citation: “Founder Effects Persist Despite Adaptive Differentiation: A Field Experiment with Lizards.” J.J. Kolbe, J.B. Losos, M. Leal, T.W. Schoener and D.A. Spiller. Science Express. Feb. 2012.

Delayed Pictures for Photo Contest

Well, I got with another Staff member here and took some photos for the header competition a while back, but we never got around to editing them in time.  However, I have them now and thought I’d share them with you anyway.  These are a few of the different species that we work with.

Will Baugher

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