The common house gecko, Hemidactylus frenatus, is a native species from Asia and the Indo-Pacific region. It has been found extensively in areas of the tropics both in the Old as well as the New World. Through the revision of museum specimens, we found 32 H. frenatus that have been erroneously identified with another invasive species, H. angulatus. The first record of H. frenatus in Colombia was reported in 2000 from the Magdalena Medio region, since that date to the present, the species has been founded in different localities into the Caribbean, Andean valleys, Pacific coastal and Orinoquia. The species has predilection for urban and suburban environments, but no records exist on its natural environment. According to our observations, this gecko is now more abundant than its conspecific, H. angulatus, and therefore we assume a strong competition between both species as well as other native and exotic geckos, mainly those that inhabit the San Andrés and Providencia islands. We recommend future studies that examine the degree of pressure and competition of H. frenatus on other native and exotic species of lizards.
Abstract (es):
El gecko casero Hemidactylus frenatus es originario de Asia y la región Indo-Pacífica pero se ha distribuido en grandes áreas de las zonas tropicales del Viejo y Nuevo mundo. Por medio de la revisión de ejemplares de museos se encontraron 32 H. frenatus, que habían sido erróneamente identificados con otra especie introducida de este género, Hemidactylus angulatus. El primer registro de H. frenatus para Colombia se hizo en el 2000 en la región del Magdalena Medio, desde esa fecha hasta el presente, se encontraron reportes de esta especie en varias localidades del Caribe, los valles interandinos, la costa Pacífica y la Orinoquía. La especie ha mostrado predilección por ambientes urbanos y suburbanos y nunca se ha detectado en ambientes naturales. De acuerdo con las observaciones realizadas en Colombia, este gecko es ahora mucho más abundante que su co-específico H. angulatus, lo que puede indicar una fuerte competencia con éste y otras especies nativas, especialmente en las islas de San Andrés y Providencia. Se recomienda realizar estudios que permitan determinar el grado de presión y competencia que puede estar ejerciendo H. frenatus sobre especies nativas e introducidas de lagartijas.
Caicedo-Portilla, R., & Dulcey-Cala, C. J. (2011). Distribución del gecko introducido <em>Hemidactylus frenatus<em> (Dumeril y Bribon 1836) (Squamata: Gekkonidae) en Colombia. Biota Colombiana, 12(2). Retrieved from https://revistas.humboldt.org.co/index.php/biota/article/view/251
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