They are responsible for decreased populations of the native, primarily arboreal, green anole through predation and by displacing green anoles to the higher areas of trees. Some lizards invaders come from Cuba, like the brown anole (Anolis sagrei). It is a habitat generalist that prefers the open vegetation of disturbed sites. Brown anoles are primarily ground dwelling, remaining low on vegetation such as trees and shrubs. I am interested in human environmental changes as natural experiments to test hypothesis about the evolution of animals. In one experiment, researchers established populations of brown anoles on several islands, measuring physical characteristics such as leg length and marking them so they could be re-identified later. Specifically, I study small lizards known as anoles and how living near human households impacts their ecology and behavior. ... A similar instance occurred in Florida when a lizard called the Cuban brown anole, which is … Non-natives-Brown Anole. A traditionally colored brown anole next to its GM albino pal. Norops sagrei (brown anole) can be identified by its extensible throat fan that is often coloured yellow or reddish-orange and has a white line down the centre of its back. After successive generations, the feet evolved to better grip the smoother and thinner branches located at the tops of the trees. Big-headed gecko shows human actions are messing with evolution. A. They then released the larger curly tail lizard, a … habitats created by human development are also good s ites for brown anoles. It is a ground dweller but will venture several feet up into trees and shrubs. 3 A cattle egret follows cattle around and eats insects disturbed by the movement of the cattle, but the cattle are unaffected. Some, such as the Cuban Brown Anole, may actually be more common around human dwellings than in … Summary of Invasiveness Top of page. human and consumes the nutrients in the intestines so that they are not available to the human. We investigated the presence of Salmonella in the green anole (Anolis carolinensis), an invasive alien species on Chichi Island, Japan.Samples were also collected from feral goats and public toilets on the island to examine infectious routes. The scientists say after the green anole made contact with the brown anole more than 50 years ago, the green anole began to perch higher into the trees in which it lived and foraged. Th ey can be very common . ... the impacts of a brown anole inva sion. “The green anole may be a nostalgic favorite, but we don’t know yet what impact the proliferation of the brown anole will have on it or on other species.