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      Presencia de Hemidactylus frenatus y Hemidactylus mabouia (Squamata: Gekkonidae) en Leticia, Amazonia colombiana Translated title: Presence of Hemidactylus frenatus and Hemidactylus mabouia (Squamata: Gekkonidae) in Leticia, Colombian Amazon

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          Abstract

          Resumen Se documenta la presencia del geco casero común Hemidactylus frenatus en la ciudad de Leticia, Colombia. La especie posiblemente ingresó a esta región por vías aéreas o fluviales. Se registra a H. frenatus y H. mabouia coexistiendo en un punto del centro de la ciudad, donde H. frenatus parece estar desplazando a H. mabouia. Posiblemente, la especie se seguirá dispersando a otros centros poblados de la cuenca amazónica y podría, entrar a Brasil. H. frenatus podría llegar a dispersarse a hábitats naturales, como ha sucedido en otras regiones del mundo, lo cual sería desfavorable para las poblaciones de gecos y otros lagartos pequeños nativos de la Amazonia. Se deben realizar monitoreos constantes en Leticia para entender y rastrear los patrones de dispersión de esta especie en la cuenca amazónica.

          Translated abstract

          Abstract The Common House Gecko Hemidactylus frenatus is recorded for the first time in the city of Leticia, in Colombian Amazonia. The species probably reached this region through air and/or fluvial ways. H. frenatus and H. mabouia are recorded coexisting in downtown Leticia, where it seems to be displacing H. mabouia. H. frenatus will probably continue its dispersal to other populated centers in the Amazon, and will eventually reach Brazil. It could disperse into natural habitats, as it has happened elsewhere, causing an adverse impact on populations of native geckos and small lizards. Monitoring should be carried out in Leticia in order to understand and track the dispersal patterns of this species in the Amazon basin.

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          Most cited references 24

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          Lizards of Brazilian Amazonia (Reptilia: Squamata)

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            An Experimental Demonstration of Exploitation Competition in an Ongoing Invasion

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              Systematics, biogeography, and evolution of Hemidactylus geckos (Reptilia: Gekkonidae) elucidated using mitochondrial DNA sequences.

              With more than 80 species inhabiting all warm continental land masses and hundreds of intervening continental and oceanic islands, Hemidactylus geckos are one of the most species-rich and widely distributed of all reptile genera. They consequently represent an excellent model for biogeographic, ecological, and evolutionary studies. A molecular phylogeny for Hemidactylus is presented here, based on 702 bp of mtDNA (303 bp cytochrome b and 399 bp 12S rRNA) from 166 individuals of 30 species of Hemidactylus plus Briba brasiliana, Cosymbotus platyurus, and several outgroups. The phylogeny indicates that Hemidactylus may have initially undergone rapid radiation, and long-distance dispersal is more extensive than in any other reptilian genus. In the last 15 My, African lineages have naturally crossed the Atlantic Ocean at least twice. They also colonized the Gulf of Guinea, Cape Verde and Socotra islands, again sometimes on more than one occasion. Many extensive range extensions have occurred much more recently, sometimes with devastating consequences for other geckos. These colonizations are likely to be largely anthropogenic, involving the 'weedy' commensal species, H. brookii s. lat, H. mabouia, H. turcicus, H. garnotii, and H. frenatus. These species collectively have colonized the Mediterranean region, tropical Africa, much of the Americas and hundreds of islands in the Pacific, Indian, and Atlantic oceans. Five well-supported clades are discernable in Hemidactylus, with the African H. fasciatus unallocated. 1. Tropical Asian clade: (Cosymbotus platyurus (H. bowringii, H. karenorum, H. garnotii)) (H. flaviviridis (Asian H. brookii, H. frenatus)). 2. African H. angulatus and Caribbean H. haitianus. 3. Arid clade, of NE Africa, SW Asia, etc.: (H. modestus (H. citernii, H. foudai)) (H. pumilio (H. granti, H. dracaenacolus) (H. persicus, H. macropholis, H. robustus, H. turcicus (H. oxyrhinus (H. homoeolepis, H. forbesii))). 4. H. mabouia clade (H. yerburii, H. mabouia). 5. African-Atlantic clade: H. platycephalus ((H. agrius, H. palaichthus) (H. longicephalus, H. greeffi, H. bouvieri, Briba brasiliana))). Cosymbotus and Briba are synonymized with Hemidactylus, and African populations of H. brookii separated as H. angulatus, with which H. haitianus may be conspecific. Some comparatively well-sampled widespread species show high genetic variability (10-15% divergence) and need revision, including Cosymbotus platyurus, H. bowringii, Asian H. brookii, H. frenatus, H. angulatus, and H. macropholis. In contrast, most populations of H. mabouia and H. turcicus are very uniform (1-2% divergence). Plasticity of some of the morphological features of Hemidactylus is confirmed, although retention of primitive morphologies also occurs.
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                Author and article information

                Journal
                biota
                Biota colombiana
                Biota colombiana
                Instituto Alexander von Humboldt (Bogotá, Distrito Capital, Colombia )
                0124-5376
                2539-200X
                December 2019
                : 20
                : 2
                : 120-127
                Affiliations
                Bogotá orgnameInstituto Amazónico de Investigaciones Científicas-Sinchi Colombia jcaicedo@ 123456sinchi.org.co
                Article
                S0124-53762019000200120 S0124-5376(19)02000200120
                10.21068/c2019.v20n02a09

                This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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                Figures: 0, Tables: 0, Equations: 0, References: 31, Pages: 8
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