this species has also invaded the Caribbean Lesser Antilles, and is now present on Saint Martin (island), Saint Barthélemy, Sint Eustatius, Dominica and Saint Lucia. Their capacity to withstand a wide range of latitudes is also partially facilitated by their capacity to enter a state of brumation during colder months. The prospect of increased climate change interacts synergistically with increased urbanisation, greatly increasing the prospective distribution of the common house gecko. Due to concerns over its potential capacity as an invasive species, there are efforts to limit their introduction and presence in locations where they could be a risk to native gecko species. In Mexico, H. frenatus was first collected in Acapulco, Guerrero, in March of 1895 and found to be well established there and in the surrounding regions by the early 1940s. It was likely introduced through shipping and cargo. H. frenatus now occurs throughout the lowlands of Mexico on both the Atlantic and Pacific versants including the Yucatan Peninsula, and Baja California, with records from 21 of the 32 Mexican states. Most records of H. frenatus in Mexico are from buildings such as homes, hotels, and other structure in cities and towns, with only a few reports of the species in natural habitat, and its impact, if any, on native fauna there is unknown. As an invasive species There is evidence to suggest that the presence of Hemidactylus frenatus has negatively impacted native gecko populations throughout tropical Asia, Central America and the Pacific. Some species which have been displaced include: Lepidodactylus lugubris Hemidactylus garnotti The genus Nactus on the Mascarene Islands (three species in this genus are now considered to be extinct) As an introduced species, they pose a threat through the potential introduction of new parasites and diseases, but have potential negative impacts which extend beyond this. The primary cause for concern appears to exist around their exclusionary behaviour and out-competition of other gecko species. Mechanistically, three explanations have been derived to justify the capacity of H. frenatus to outcompete other gecko species: Possessing a smaller body size. They fail to displace native species larger than themselves, such as the robust velvet gecko. Male H. frenatus displaying higher levels of aggression than females of other gecko species (particularly parthenogenic species with asexual females). Sexual females displaying an increased capacity to compete in comparison to asexual females. These differences provide H. frenatus a competitive edge in the limited