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      Primer registro del caracol viajero invasor Melanoides tuberculata (Gastropoda: Thiaridae) en San Luis Potosí, México Translated title: First record of the invasive exptoc snail Melanoides tuberculata (Gastropoda: Thiaridae) in San Luis Potosí, Mexico

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          Abstract

          Resumen Antecedentes: El caracol viajero o malasio Melanoides tuberculata Müller, 1774, es un especie dulceacuícola originaria de Asia y África. Esta especie de caracol se ha comercializado por la actividad de acuarismo; sin embargo, por desgracia, se han presentado liberaciones accidentales y deliberadas de individuos en lugares donde no existían, lo cual ha provocado un incremento en su distribución mundial. En México, desde 1973 se ha documentado la presencia de poblaciones silvestres en diferentes estados del país. Objetivos: Documentar el primer registro de la presencia de la especie en el estado de San Luis Potosí, México. Métodos: Durante los años de 2015 a 2018 fueron muestreados diferentes cuerpos de agua permanentes en el altiplano potosino y la región media del estado de San Luis Potosí para registrar la presencia o ausencia de la especie. En los sitios donde se registró la presencia de caracoles se procedió a colectar algunos ejemplares, los cuales fueron utilizados para las identificaciones taxonómicas y después resguardados en la Colección Nacional de Moluscos del Instituto de Biología (UNAM). Resultados: El 16 de junio de 2017 en un canal próximo al poblado de San Francisco de Asís, municipio de Rioverde, se registró la presencia de individuos vivos del caracol viajero. Conclusiones: El presente estudio contribuye al conocimiento de la dispersión del caracol viajero dulceacuícola exótico M. tuberculata en México y representa el primer registro de su presencia en el estado de San Luis Potosí. Consideramos que la incidencia real del caracol exótico en el estado es baja, pero debido a su alto potencial de dispersión, podría ser un riesgo para la fauna acuática nativa, ya que es un huésped intermedio de enfermedades parasitarias de aves silvestres y especies de peces.

          Translated abstract

          Abstract Background: The species red-rimmed melania Melanoides tuberculata Müller, 1774 is native to Asia and Africa. Due to the aquarium trade, its worldwide distribution has widely increased. In Mexico, its presence in the wild has been documented since 1973 in different Mexican states. Goals: Document the first record of the presence of the species in the state of San Luis Potosí. Methods: During 2015 - 2018, different perennial water bodies were sampled in San Luis Potosí, and the presence or absence of the species was recorded. Photographic images of the exotic snail were taken for taxonomic identification and specimens collected in the study were deposited at the Colección Nacional de Moluscos - Instituto de Biología (UNAM). Results: On June 16, 2017, some individuals were found in an area near the town of San Francisco de Asís, municipality of Rioverde. Conclusions: This study contributes to the knowledge of the dispersal of the exotic red-rimmed melania in Mexico and is the first record of its presence in the state of San Luis Potosí. We consider that the current incidence of the exotic snail in the state is low. Because of its high dispersion potential, however, it could be a risk for native aquatic fauna, considering its role as an intermediate host of parasitic diseases of wild bird and fish species.

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          Climate change and invasive species: double jeopardy.

          Two of the key drivers of biodiversity loss today are climate change and invasive species. Climate change is already having a measurable impact on species distributions, reproduction and behavior, and all evidence suggests that things will get worse even if we act tomorrow to mitigate any future increases in greenhouse gas emissions: temperature will increase, precipitation will change, sea level will rise and ocean chemistry will change. At the same time, biological invasions remain an important threat to biodiversity, causing species loss, changes in distribution and habitat degradation. Acting together, the impacts of each of these drivers of change are compounded and interactions between these two threats present even greater challenges to field conservationists as well as policymakers. Similarly, the social and economic impacts of climate change and invasive species, already substantial, will be magnified. Awareness of the links between the two should underpin all biodiversity management planning and policy. © 2010 ISZS, Blackwell Publishing and IOZ/CAS.
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            A molecular phylogeography approach to biological invasions of the New World by parthenogenetic Thiarid snails.

            The parthenogenetic snail Melanoides tuberculata, present in tropical fresh waters of most of the Old World before 1950, has now invaded the Neotropical area. The phylogeography of this snail was studied to evaluate the pathways and number of such invasions. Because of parthenogenetic reproduction, individuals are structured into genetical clones. Within populations from both the original and invaded areas, several morphologically distinct clones (referred to as morphs) often coexist but the amount of genetic divergence among morphs is unknown. Individuals from 27 morphs and 40 populations world-wide were sequenced at two mitochondrial genes (12S and 16S). Our phylogenetic reconstruction suggests that (i) most of the morphological variation observed in the New World predates invasion, (ii) at least six independent introductions have occurred, and (iii) invasive clones are found throughout most of the phylogenetic tree and do not come from a particular region of the area of origin. Two ideas are discussed in the light of these results. The first lies with the specificities of parthenogenesis in an invasion context. While in sexual species, independently introduced populations eventually merge into a single invasive population, in a parthenogenetic species independently introduced clones have distinct invasion dynamics and possibly exclude each other. Second, although repeated invasions in Melanoides may have an impact on indigenous molluscan faunas, their most likely effect is the world-wide homogenization of the invasive taxon itself.
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              Alien Non-Marine Snails and Slugs of Priority Quarantine Importance in the United States: A Preliminary Risk Assessment

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                Author and article information

                Journal
                hbio
                Hidrobiológica
                Hidrobiológica
                UAM, Unidad Iztapalapa (México, DF, Mexico )
                0188-8897
                December 2018
                : 28
                : 3
                : 349-351
                Affiliations
                [1] San Luis Potosí orgnameInstituto Potosino de Investigación Científica y Tecnológica, A. C. orgdiv1División de Ciencias Ambientales México
                [2] San Luis Potosí orgname México
                [3] orgnameUniversidad Autónoma de Querétaro orgdiv1Facultad de Ciencias Naturales Mexico
                Article
                S0188-88972018000300349 S0188-8897(18)02800300349
                10.24275/uam/izt/dcbs/hidro/2018v28n3/tinajero
                9e733110-a93b-4bd4-94df-5fa6d8a36ad6

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

                History
                : 05 October 2018
                : 27 February 2018
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 21, Pages: 3
                Product

                SciELO Mexico

                Categories
                Nota científica

                Mexico,invasive species,Rioverde,Melanoides tuberculata,México,especies invasoras

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