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Las poblaciones de las especies invasoras pueden diferir en las características que determinan la intensidad de sus efectos sobre los ecosistemas nativos. El estudio de la variación morfológica aporta información valiosa sobre diferentes procesos evolutivos y ecológicos en las especies. Con el objetivo de evaluar los patrones de variación morfológica del caracol gigante africano (Achatina fulica), una especie invasora presente en el departamento del Valle del Cauca, se colectaron individuos en las zonas urbanas de 4 municipios (Buenaventura, Cali, Tuluá y Cartago). A estos especímenes se les realizó un análisis de morfometría geométrica y clasificación con base en el patrón de coloración. Se encontró que existe variación morfológica significativa dentro de la población, además del patrón de bandas o coloración, con un total de 13 patrones en toda la muestra. Se proponen las condiciones ambientales de cada localidad y los controles realizados por la autoridad ambiental como posibles causantes de la variación.

Populations of invasive species may differ in the characteristics that determine the intensity of their effects on native ecosystems. The study of morphological variation provides valuable information on different evolutionary and ecological processes. In order to evaluate the patterns of morphological variation of the African Snail (Achatina fulica), an invasive species present in the department of Valle del Cauca, individuals were collected in urban areas of 4 municipalities (Buenaventura, Cali, Tuluá and Cartago). An analysis of geometric morphometry and classification based on the pattern of bands was performed on the collected specimens. A significant morphological variation within the population was found, along with a total of 13 patterns of bands or coloration in the entire sample. Environmental conditions of each locality and controls exerted by the environmental authority are proposed as possible causes of variation. [ABSTRACT FROM AUTHOR]

Its registers for the first time the presence of the African giant snail, Achatina fulica (Bowdich 1822) in Sincelejo city, department of Sucre, Caribbean coast of Colombia. The first invasion alert in the country was given by Corpoamazonia in August of 2010, for introduction of snails coming from Brazil. Then in the year 2011 was reported the occurrence in the departments of Arauca, Boyacá, Caquetá, Casanare, Guainía, Huila, Meta, Nariño, Putumayo, Santander, Tolima, Valle del Cauca and Vaupés. In the 2012 it was located in the department of Antioquia. This new discovery in the department of Sucre alerts because its presence in the Colombian Caribbean begins to be certain.

The Colombian terrestrial mollusks are poorly known because most of the studies were focus on marine and freshwater mollusks, as a product of that there are actually some taxonomic inventories for those. A list to record the genus of Colombian terrestrial mollusks was create after intensive collection reviews using Internet and also using specialized bibliography. 80 genus were record distributed in 25 departaments of the country. The checklist is presented including the valid scientific names and their synonymies, also the classification systems that were use and the localities where were genera registry. That work was done under the support of the ABC grants funded by the Alexandre von Humboldt Institute. This list and its additional information was done using Authority Taxonomy Files (AAT for the word in Spanish), an application developed by the biodiversity information system of Colombia (SiB), coordinated also by the Alexander von Humboldt Institute.

Its registers for the first time the presence of the African giant snail, Achatina fulica (Bowdich 1822) in Sincelejo city, department of Sucre, Caribbean coast of Colombia. The first invasion alert in the country was given by Corpoamazonia in August of 2010, for introduction of snails coming from Brazil. Then in the year 2011 was reported the occurrence in the departments of Arauca, Boyacá, Caquetá, Casanare, Guainía, Huila, Meta, Nariño, Putumayo, Santander, Tolima, Valle del Cauca and Vaupés. In the 2012 it was located in the department of Antioquia. This new discovery in the department of Sucre alerts because its presence in the Colombian Caribbean begins to be certain. [ABSTRACT FROM AUTHOR]

The Colombian terrestrial mollusks are poorly known because most of the studies were focus on marine and freshwater mollusks, as a product of that there are actually some taxonomic inventories for those. A list to record the genus of colombian terrestrial mollusks was create after intensive collection reviews using Internet and also using specialized bibliography. 80 genus were record distributed in 25 departaments of the country. The checklist is presented including the valid scientific names and their synonymies, also the classification systems that were use and the localities where were genera registry. That work was done under the support of the ABC grants funded by the Alexandre von Humboldt Institute. This list and its additional information was done using Authority Taxonomy Files (AAT for the word in Spanish), an application developed by the biodiversity information system of Colombia (SiB), coordinated also by the Alexander von Humboldt Institute. [ABSTRACT FROM AUTHOR]