Tag: Anolis conspersus

It’s June. It’s orchid flowering season in Grand Cayman. And with nods to #Anole March Madness and #MammalMadness it’s the opening round of the 2018 ANOLE WORLD CUP. #ANOLEGOOAAAAALLLL!!!!

Home Team – Anolis conspersus – against – Away Team – Anolis sagrei

And in less than 90 seconds it’s all over.

The teams are on the pitch

The Away Team

The Home Team heads to mid-field

The Striker takes aim

Home Team – 1, Away – nil

JMIH 2016: Anolis conspersus Color variation and Habitat Use

By Kristin Winchell

On July 10, 2016

In New Research

Bright and early this morning, Christopher Peterson kicked off the anole talks of the day on the topic “Intraspecific color and habitat use variation in Anolis conspersus.” Christopher noted that on Grand Cayman there appear to be three color morphs for A. conspersus: brown, blue, and green and asked if color morph was correlated with habitat use. Christopher captured 309 lizards across the island, photographed them for color analysis, and took a large number of habitat measurements plus basic morphology of the lizards (mass, SVL). When analyzing the color data, however, he noticed that the picture was not so clear: many of the lizards had both blue and green coloration. Since these were not discrete groups, instead he analyzed body pattern, which appeared to be more discrete and showed the same geographical variation. In general, lizards on the East of the island were brown and spotted while the lizards on the West of the island were green/blue with vermiculated pattern.

Using a complex logistic regression, Christopher analyzed the discretized character state with his habitat and morphological measurements. Disappointingly, he found no associations between morphology or habitat use with body patterns. He concluded that the variation in pattern and coloration is probably best explained by geographic location alone and that future genetic analyses may help clear up if this is a geographical cline with isolation by distance.

Fill In The Blank: Obscure Anole Life History Traits

By Andrew Durso

On June 27, 2013

In Ask the Experts

In collaboration with the Conservation Biology course taught by Dr. Karen Beard here at Utah State University, where I am a Ph.D. student, I have been involved in gathering life history data on ~400 species of reptiles that have been introduced outside of their native ranges for an analysis of how life history traits (e.g., diet, fecundity, longevity) interact with other factors to influence the likelihood of successful establishment. Appendix A of Fred Kraus’ 2009 book Alien Reptiles and Amphibians is the source of the species list we are using, and included in this analysis are 26 species of Anolis. This is where you come in.

First, we coded all anoles as (i) sexually-dichromatic, (ii) diurnal, (iii) non-venomous, (iv) oviparous, (v) omnivores that lack (vi) temperature-dependent sex determination and (vii) parthenogenesis. Is anyone aware of any exceptions to these seven generalizations?

Second, we searched for data on clutch size, clutch frequency, incubation time, and longevity. The Anole Classics section of this site and the Biodiversity Heritage Library were particularly useful. After conducting what I feel to be a pretty thorough literature scavenger hunt, I am forced to conclude that some of these data simply do not exist at the species level for all of the species we’re interested in, or are not explicitly stated in a way that is obvious to a non-anole-expert. Of course, there is a lot of literature, including many books that I don’t have access to, and there are also lots of credible observations that don’t get published. I’m hoping that some of the readership here can help fill in at least some of the blanks in the table below. As one member of the team, I did not collect all of the data that are filled in myself, nor have I personally vetted every value, so if you spot an error please do point it out.

Two important points:

Many environmental factors obviously influence the life history parameters of our beloved and wonderfully plastic reptiles, so we appreciate that many of these values would be better represented by ranges and are dependent on latitude, altitude, climate, and many other factors. Where a range is published, we are using its median value.
I should also emphasize that, because of the large size of this study and the diversity of taxa included (ranging in size from giants like Burmese Pythons, Nile Crocodiles, and Aldabra Tortoises to, well, anoles and blindsnakes), it is more important for the data to reflect the relative values of these life history parameters across all anoles (and all reptiles) than it is to specifically and precisely represent all known variation within a given species of anole.

Without further ado (for your enjoyment, and because I know from my own blog that nobody reads posts lacking pictures, I’ve embedded an image of each species):

Species	Median clutch size	Median clutches per year	Incubation time (days)	Maximum longevity (months)
A. aeneus	2
A. baleatus
A.bimaculatus	2		43	84
A. carolinensis	1.15	6	41.5	65
A.chlorocyanus	1	18
A. conspersus	1
A. cristatellus	2.5	18		83
A. cybotes	1	18	45
A. distichus	1	16	45.5
A. equestris	1	1	48	149
A. extremus
A. ferreus	1	18
A. garmani	1.5	18	67
A. grahami	1
A. leachii
A. lineatus
A. lucius	1	3.5	60
A. marmoratus	2		50
A. maynardi
A. porcatus	1	18	63.5
A. pulchellus	1
A. richardii	1
A. sagrei	2	20	32	22
A. stratulus
A. trinitatis	2		50
A. wattsi	1