Communal Nesting in Anolis angusticeps

Previous posts have discussed communal nesting behavior among a number of anole species, whereby females deposit eggs in the same cavity. A new paper by AA‘s own Michele Johnson and friends extends this growing body of observations, stretching all the way back to Stan Rand’s 1967 work. This behavior has been previously reported for the Cuban Twig Anole (Anolis angusticeps) in Cuba, though apparently not in the Bahamas. According to Robinson et al. (2014), at least nine West Indian anole species are now known to engage in communal nesting, with others potentially to be added. AA has also called attention to a tenth mainland species (A. lionotus), described in Montgomery et al. (2011). So these observations bring to mind some questions: what intrinsic factors of a nest cavity draw multiple females to oviposit there? Are female offspring returning to the site in subsequent years to lay their own eggs? Does this behavior vary individually or regionally? Let us know if you have some of your own observations.

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Communal nest of Anolis angusticeps on South Bimini. Figure 2 from Robinson et al. 2014, photo by B. Kircher.

 

Anoles and Hummingbirds

Posted by Lorie on Birds and Blooms.

Survey: How Many Lamellae Are on This Toepad?

Hi everyone, I apologise for the repeat post. As mentioned by Martha, it may not have been obvious from the initial post that there was a survey inside!

So, please forgive me while I repost with an amended title in the hope of getting a few more poll participants. We are only just into double figures (including only 3 of you who have previously published on the subject) – surely we can do better than that! Thank you to everyone that has already contributed. I will present the results in a follow up post in week or so depending on participant activity.

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One of the age old questions in anole morphology is at what point do you stop counting lamellae on the toepad?

Without giving any more information on various techniques or methods, I thought it would be interesting to ask the AA community their personal opinions. Below I have attached a flatbed scan of a toepad. Could people please fill out the corresponding poll below, and I will present the results in a follow up post!

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Lamellae numbered 1-51 on the 4th digit of an Anolis lizard hindfoot

Six New Mexican Anoles Described

nietoi

Gunther Kōhler and colleagues have just published in Zootaxa a new revision of some Mexican anoles, including the description of six new species and the sinking of one species. Rather than describing the work, I think it would be more effective to present the title and abstract:

A revision of the Mexican Anolis (Reptilia, Squamata, Dactyloidae) from the Pacific versant west of the Isthmus de Tehuantepec in the states of Oaxaca, Guerrero, and Puebla, with the description of six new species

GUNTHER KÖHLER1, RAÚL GÓMEZ TREJO PÉREZ, CLAUS BO P. PETERSEN & FAUSTO R. MÉNDEZ DE LA CRUZ

We revise the species of anoles occurring along the Pacific versant of Mexico west of the Isthmus de Tehuantepec in the states of Oaxaca, Guerrero, and Puebla. Based on our analyses of morphological and molecular genetic data, we recognize 21 species, six of which we describe as new (i.e., Anolis carlliebi sp. nov., A. immaculogularis sp. nov., A. nietoi sp. nov., A. sacamecatensis sp. nov., A. stevepoei sp. nov., and A. zapotecorum sp. nov.). Furthermore, we synonymize Anolis forbesi Smith & Van Gelder 1955 with Anolis microlepidotus Davis 1954. Of the recognized species, six have smooth ventral scales (i.e., Anolis dunni, A. gadovii, A. liogaster, A. omiltemanus, A. peucephilus, and A. taylori) and 14 have keeled ventral scales (i.e., A. boulengerianus, A. carlliebi, A. immaculogularis, A. megapholidotus, A. microlepidotus, A. nebuloides, A. nebulosus, A. nietoi, A. quercorum, A. sacamecatensis, A. stevepoei, A. subocularis, A. unilobatus, and A. zapotecorum). In one species, A. macrinii, the ventral scales vary from smooth to weakly keeled. For each species we provide color descriptions in life, color photographs in life, descriptions and illustration of hemipenis morphology (if available), descrip-tion of external morphology, distribution maps based on the specimens examined, comments on the conservation status, and natural history notes. Finally, we provide a dichotomous key for the identification of the 21 species of anoles occurring along the Pacific versant of Mexico west of the Isthmus de Tehuantepec in the states of Oaxaca, Guerrero, and Puebla.

Florida Festival Features Green Anole

Karen Cusick, author of  Lizards on the Fence and tender of Daffodil’s Photo Blog, writes:

You may remember that the Wild Amelia Nature Festival (Amelia Island, FL–just north of where I live) chose the green anole as their Critter of the Year for 2015. I was looking at the Wild Amelia website and they are already starting to gear up for the festival, which will be held May 15-17. They’ve designed a new website logo featuring a green anole, and there are going to be tee shirts with the logo. The website button to buy a tee shirt doesn’t work yet, but that should be fixed as the festival gets closer. I’m going to check on that.

There’s only a small size image of the logo so far, but I’m attaching it anyway. It looks like it’ll be a nice shirt.

They’ve scheduled a series of nature-based seminars in the months leading up to the festival, and the last one is May 12, when the director of the Jacksonville Zoo, Tony Vecchio, will give a presentation about the green anole and the Zoo.

I’ll let you know if I hear any more anole-related news about the festival!

Third Specimen of Anolis dissimilis Found in Brazil

dissimilisIn a recent paper in Herpetology Notes, de Freitas et al. report the third specimen of the species, the first from Brazil and the first in which a living specimen is illustrated.

Look at that schnoz! Reminiscent of some members of the carolinensis species group, such as AA regular A. maynardi from the Cayman Islands.

Here’s the illustration from Ernest Williams’ 1965 description in Breviora.

dissimilis williams

How Many Lamellae Are on this Toepad?

One of the age old questions in anole morphology is at what point do you stop counting lamellae on the toepad?

Without giving any more information on various techniques or methods, I thought it would be interesting to ask the AA community their personal opinions. Below I have attached a flatbed scan of a toepad. Could people please fill out the corresponding poll below, and I will present the results in a follow up post!

alt text

Lamellae numbered 1-51 on the 4th digit of an Anolis lizard hindfoot

Brown Anole Eats Another Brown Anole

Photo tweeted by Sarah Knutie. Have we talked about cannibalism previously on AA? A quick search on our search bar finds two hits, one noting such tendencies in knight anoles, the other not very specific. Who’s seen it?

Finding the “Rare” Anolis duellmani

Like many quests to find rare herps, this is a story of courage, persistence, and strength. Just kidding; it was a piece of cake.

Anolis duellmani was described by Fitch and Henderson (1973) based on four specimens from the southern slope of the Volcán San Martín Tuxtla, Veracruz, Mexico. Even though the phylogenetic position of A. duellmani is uncertain, no additional morphological variation had been described for the species. As part of a major effort led by Dr. Adrián Nieto-Montes de Oca and Dr. Steven Poe to untangle the systematics of Mesoamerican anoles, Israel Solano-Zavaleta, Levi N. Gray, and I went to Los Tuxtlas to search for the elusive species.

Registro de Copula de Anolis huilae

Copula de Anolis huilae en Ibagué (Colombia).

Copula de Anolis huilae.

En el marco de mi tesis de maestría sobre la Ecofisiología térmica de Anolis huilae tuve la oportunidad de observar, creería que sería el primer registro, una pareja de ésta especie copulando en el tronco de un árbol. Evento que lo considero relevante por la falta de información acerca de ésta especie.

El estudio lo estoy desarrollando en el Corregimiento de Juntas, Ibagué (Colombia). Mi objetivo es conocer aspectos de la fisiología térmica de A. huilae y relacionarla con las temperaturas ambientales y microambietales de su hábitat.  Para la colecta de datos me estoy apoyando con una cámara termográfica infrarroja (metodología no invasiva) y modelos de cobre con data loggers insertos en ellos.

Imagen termográfica de copula de Anolis huilae.

Imagen termográfica de copula de Anolis huilae.

En una primera etapa del estudio estoy averiguando si A. huilae es una especie heliotérmica o tigmotérmica; como también, si es termoconformadora activa o termoconformadora pasiva. Datos que próximamente los compartiré.

Observaciones comportamentales, no registradas,  ayudarán a conocer más aspectos de la biología y ecología de ésta especie, de la que aún falta mucho por descubrir. Así mismo, he observado en esta localidad la simpatría con otro anolis, Anolis antonii.

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English translation via the internet:

Record of Copulation of Anolis Huilae

In the framework of my master’s thesis on the thermal ecophysiology of Anolis huilae, I had the opportunity to observe, you would not believe that would be the first record, a couple of this species copulating in the trunk of a tree. Event that is considered relevant by the lack of information about this species.

The study, I am developing in the Corregimiento of seals, Ibagué (Colombia). My goal is to understand aspects of the thermal physiology of A. huilae and relate it to the ambient temperatures and microenvironments of its habitat. For the collection of data I am supporting with a infrared thermal imager (non-invasive methods) and copper models with data loggers inserts in them.

In the first stage of the study, I am enquiring whether A. huilae thermoregulation is a species or is thigmothermic; also, whether it is an active or passive thermoregulator. I will share the data soon.

Behavioral observations, unregistered, help you learn more aspects of the biology and ecology of this species, which still lack much to discover. Also, I’ve seen in this locality the sympatry with another anole, Anolis antonii.

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