Anolis lizards are common throughout the islands of the West Indies, often with several species existing in sympatry by demonstrating conspicuous niche separation. With increasing occurrences of Anolis species being introduced to islands outside of their natural range, there is potential for significant disturbance to natural Anolis communities and particularly to endemic species that have evolved in the absence of congeners. Here we report on the status of non-native Anolis lizards now present on the island of Saint Lucia, historically a single species island, and discuss the potential impact these introductions may have on endemic Anolis luciae. Through systematic visual encounter surveys and opportunistic sightings we present evidence for the widespread dispersal of Watts' anole (A. wattsi), indications of range expansion of Barbados anole (A. extremus), and the arrival and dispersal of a third species, the Cuban brown anole (A. sagrei). Our data suggest the presence of at least two of these species may be having a detrimental impact on the abundance of A. luciae, particularly in disturbed habitats.

中文翻译：

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小安地列斯群岛圣卢西亚上的外来蜥蜴的分布

蜥蜴蜥蜴在整个西印度群岛都很常见，通过显着的利基分离，通常在象征物中存在几种物种。随着将Anolis物种引入其自然范围以外的岛屿的事件增多，有可能对天然Anolis群落，尤其是在没有同源物的情况下进化的特有物种造成重大干扰。在这里，我们报告目前在历史上是单一物种的圣卢西亚岛上目前存在的非本地Anolis蜥蜴的状况，并讨论这些引进可能对地方性Anolis luciae产生的潜在影响。通过系统的视觉encounter望调查和机会主义目击，我们提供了有关瓦茨的Anole（A. wattsi）广泛散布的证据，迹象表明巴巴多斯Anole（A. extremus）范围扩大，以及第三种古巴棕Anole（A. sagrei）的到来和扩散。我们的数据表明，至少有两个这样的物种的存在可能会对芦荟的丰度产生不利影响，尤其是在受干扰的栖息地中。