Herpetofaunal communities of the leeward slopes and coasts of St. Vincent: A comparison of sites variously altered by human activity

Abstract

Like other Lesser Antillean islands, human-modified habitats are prevalent on much of St. Vincent, especially in coastal regions. Eighteen terrestrial species of reptiles and amphibians are known to occur on the island. Some species demonstrate considerable versatility, and are found in both altered and relatively natural habitats. Others, however, are restricted to one extreme or the other. To better understand the composition of herpetofaunal communities, we surveyed seven sites on the leeward side of the island, chosen to represent different degrees of human alteration. We found the highest diversity index in an urban area, where introduced species prevailed. Endemic species were more abundant in more natural sites. Three species, Eleutherodactylus johnstonei, Anolis griseus, and A. trinitatis, were at all sites.