Author: Jonathan Losos Page 81 of 129

Professor of Biology and Director of the Living Earth Collaborative at Washington University in Saint Louis. I've spent my entire professional career studying anoles and have discovered that the more I learn about anoles, the more I realize I don't know.

Miami Anole Safari I

Jason Kolbe’s latest field site

Wonderful as the International Biogeography Society meeting was, there were more important fish to fry in Miami, so several of us played hooky to go looking for introduced anoles. First stop was Miami Beach, where we headed to the famed Fountainebleau Hotel, site of an introduction of A. trinitatis from St. Vincent (note to Wikipedia-adept readers; the entry  for the hotel is quite informative, but lacks information on the hotel’s pivotal role in enhancing Miami anole diversity). Last year, Joe Burgess reported that the colony was no more, but we wanted to check for ourselves.

Slipping into the pool area at the back of the hotel, we inconspicuously mingled with the beautiful crowd, gazing up the enormous palm trees and into the bushes, pretending to be looking for birds and lost croquet balls. The morning was semi-sunny, but very windy—not ideal anole weather, especially when looking for a species hailing from near the equator. Nonetheless, when the sun peeked out, we did find the Miami big three—carolinensis, distichus and sagrei—but no sign of trinitatis. After an hour, with the security team moving in, we decamped through the back and headed on.

Next stop: the lush and beautiful grounds of the Fairchild Tropical Botanical Garden, its floral magnificence seemingly designed to provide ideal saurian habitat. We first visited the new Wings of the Tropics building, a lovely, enclosed house full of brilliant eye candy in the form of morpho, postman, and other fabulous butterflies. We stopped in there because word on the street is that the building will soon be re-named Toepads of the Tropics because some uninvited guests have taken up residence in the well-vegetated exhibit, enjoying the sun and the abundant insect fare. Sure enough, we spotted both a brown anole and a female red-headed Agama agama.

Floridian red-headed agama. Photo from dust tracks on the web

“Agama”??? you say? That’s right, these lovely African lizards have taken root in a number of places in southern Miami, amongst them the Fairchild. And in a biomically-appropriate way, these East African lizards are most common in the Old World Xeric exhibit in the gardens, hanging out amongst the Malagasy euphorbs and pachypodia, probably imaging that they’ve just slipped across Mozambique Channel. To complete the illusion, they have taken pains to scare away all the anoles from their rocky redoubt, though we did notice one brave male brown anole in the shade of a rock. Agamas may have the same effect on anoles as do curly-tailed lizards, a suggestion made by James Stroud, who was our very capable tour guide to the lizards of Fairchild.

By then, the sun was out in full force and the anole abundance was extraordinary.

New Species Of Chamaeleolis!

AA contributor and anole breeder extraordinaire Veronika Holáňová and colleagues have just described a new species of Chamaeleolis, Anolis sierramaestrae, from–where else?–the Sierra Maestra of eastern Cuba. The species, described in a paper just published in Acta Societatis Zoologicae Bohemicae, differs in a variety of scalation details from the other five species in this group, and the paper includes a very useful pictorial guide to distinguishing among them.

In addition, check out this nifty x-ray.

Anolis Sagrei Invades Mainland Asia

Who knows how far this fellow’s genes will spread through Asia?

These pages have chronicled the appearance of the brown anole (Anolis sagrei) in farflung places around the globe, including throughout the CaribbeanHawaii, Costa Rica, and Taiwan, among others. A new paper in Nature in Singapore reports a first: an established population in mainland Asia, in Singapore. The site of the invasion, and apparently for now the only locality for the population, is a new park, Gardens by the Bay. As Wikipedia reports, Gardens by the Bay is “an integral part of a strategy by the Singapore government to transform Singapore from a “Garden City” to a ‘City in a Garden’. The stated aim is to raise the quality of life by enhancing greenery and flora in the city.” Like many invasive anole populations, this one probably was founded by stowaway lizards or eggs transported in potted plants, but this is just conjecture.

As a sidenote, as far as I am aware, this paper is the first to implement the new Nicholson et al. anole classification, explicitly citing the paper as rationale for referring to the species as Norops sagrei.

Amber Geckos From The Dominican Republic

We’ve had a lot of hoohaw in these pages about amber Anolis, but anoles are not the only lizards represented in the Dominican amber fauna. In particular, a number of fine specimens of amber geckos are known from the D.R., as well as from amber deposits elsewhere. One such species is Sphaerodactylus dommeli. Embarrassing as it is to anole aficionados, this specimen has at times been suggested to be an anole, hard as it may seem to confuse such a lowly gecko with something as magnificent as an anole. In any case, Daza et al. have just published a magnificent analysis demonstrating that the specimen is, indeed, a gecko, and providing tips on how to avoid such unwholesome confusion in the future. Moreover, confirmation of the specimens identity will allow it to be used as a calibration point in future molecular studies of Sphaerodactylus phylogeny.

Snail Chomping Lizards

Although Anole Annals is devoted to all things anoline, we try not to be too parochial. In particular, when fascinating items appear in print or cyberspace on other lizards, we try to report them here, especially if they have some relevance to matters anole.

In this vein, we wish to draw attention to an interesting communique that just appeared in Tetzoo, a fascinating site dealing with a wide range of topics, and taxa, concerning tetrapod zoology. The article in question discussed snail-eating in the Australian pink-tongued skink (a rosy version of the blue-tongued variety) and the broad crushing teeth seemingly designed for such a purpose, teeth that are parallelled in a fossil marsupial.

Chamaeleolis teeth from Estes and Williams. Ontogenetic variation in the molariform teeth of lizards. J. Vert. Paleo. 4:96-107.

The relevance to anoles, of course, is that one of our very own, the Chamaeleolis clade, exhibits very much the same trait of snail crushing, as illustrated in a previous post.

Anole Dance Craze From The 1920s

httpv://www.youtube.com/watch?v=dt4wsmAdEk8

In the 1920’s, there was a dance as popular as the Charleston, but it was about anoles! Admittedly, it was called the “chameleon,” but clearly it was based on pictures of an anole, and you can evaluate the dance moves yourself to decide if they were more anole- or chameleon-like.

Apparently Luke Harmon, who brought this video to AA‘s attention, is an expert at many of the moves involved in the dance.

Ecuadorian Anole ID Needed

Photo by Brian Arbogast

Brian Arbogast sent these photos with a request for identification. I have my guesses, but I thought I’d throw it out to the experts. Here’s what Brian had to say: “They were taken in the lower cloud forest of Sumaco Volcano, on the eastern slope of the Andes in Ecuador at about 1700-1800m in elevation.”

Photo by Brian Arbogast

Color Catalogue For Field Biologists


Anole biologist Gunther Köhler has produced a handy manual, available from Herpeton publishers, to help describe colors of specimens, especially in field situations. The book’s introduction can explain better than I what it is used for and why it was written:

The accurate description of the coloration in life of organisms represents an important component of the work of any field biologist. Subtle differences in the coloration in life, such as in the color of the iris, the lining of the mouth cavity, or the tongue are diagnostic for certain species and have been used by taxonomists to differentiate among species.

Whereas many aspects of the external morphology of scientific specimens can be preserved with proper fixation methods, there is still no way to assure the long-term conservation of the coloration in life in such specimens. This is especially true for animals traditionally fixed with the help of formalin and ethanol, such as fishes, amphibians, and reptiles, and then stored as a wet collection. Colors such as red, yellow, and orange disappear rapidly once the specimen is placed in the preservative. Green-colored amphibians and reptiles can turn blue, lavender, purple, or black within a short time after preservation.

The Catalogue also provides definitions and examples of different phenotypic characteristics.

Of course, taking photographs of animals helps to document the coloration in life. Possible drawbacks to this technique are incorrectly adjusted white balances, which cause colors not to be reproduced accurately. Also, photographs often do not show coloration of hidden body parts. Therefore, biologists have a long tradition of recording colors by making written descriptions. Since individuals see colors differently and because it not easy to define, for example, different shades of brown or green in words, having a color standard helps to produce more objective and detailed descriptions that also have a greater chance of being reproducible. Such a reference can be used to compare descriptions made by different persons at different times and places. For decades, field biologists have utilized the “Naturalist’s Color Guide” by Frank B. Smithe (1975-1981) as the standard reference for color descriptions. However, for many years now, this important reference has been out of print and is no longer available.

I have used Smithe’s “Naturalist’s Color Guide” (called “Smithe Guide” from here on) extensively during the past 20 years, and my copy now clearly shows signs of this intensive usage under field conditions over the years. With no hope of being able to obtain a copy in good shape to replace my old one, I decided to produce a new reference to fill the gap left by the now unavailable Smithe Guide.

The resulting “Color Catalogue for Field Biologists” you are holding in your hand is not a duplicate of the Smithe Guide.

Anole Annals Viewership Triples In A Year: 300,000th Visit Impending

Some time in the wee hours tonight or early tomorrow, the 300,000th visitor will traipse through Anole Annals. Not bad since we only reached 100,000 barely more than a year ago, on December 16, 2011, when some lunkhead from Valdosta, GA logged in. Who will claim this great honor? And when will it occur? You can keep track yourself by checking the stats counter at the bottom of the sidebar on the right side of the screen. And if you haven’t done so before, click on the world map just above it, to see in rotating 3-D where people are visiting AA right now.

Next AA milestone: our 1000th post, slated for later this winter. So far, in our two year and change history, we’ve had 919 posts by 87 contributors from 11 countries and five continents. Not to mention 3,356 comments.

18 Anole Talks At SICB Meetings Starting Tomorrow

As Martha Muñoz reported two months ago, the Society of Integrative and Comparative Biology meetings, beginning Thursday in San Francisco, will be awash with anole research. Check out the list of talks here, the full story in Martha’s post, and stay tuned for updates from ‘frisco.

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