Person: Peso, Juana Guadalupe
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Peso
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Juana Guadalupe
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Publication Threatened gastropods under the evolutionary genetic species concept: redescription and new species of the genus Aylacostoma (Gastropoda: Thiaridae) from High Paraná River (Argentina-Paraguay)(2014) Voget, Claudio Enrique; Beltramino, Ariel Anibal; Peso, Juana Guadalupe; Rumi Macchi Zubiaurre, AlejandraPublication Primer registro del gasterópodo invasor melanoides tuberculata (Gastropoda, thiaridae) en el rÃo Uruguay (Argentina-Brasil)(2010) Peso, Juana Guadalupe; Voget, Claudio Enrique; Pividori, Nelson D.Publication Melanoides tuberculata : The history of an invader(2012) Voget, Claudio Enrique; Núñez, MarÃa Verónica; Gutiérrez Gregoric, Diego Eduardo; Beltramino, Ariel Anibal; Peso, Juana GuadalupePublication Insights into the evolutionary history of an extint South American Freshwater Snail based on historical DNA(2016) Voget, Claudio Enrique; Beltramino, Ariel Anibal; Srong, Ellen E.; Rumi Macchi Zubiaurre, Alejandra; Peso, Juana GuadalupePublication Threatened Neotropical mollusks : analysis of shape differences in three endemic snails from High Paraná River by geometric morphometrics(2012) Voget, Claudio Enrique; Beltramino, Ariel Anibal; Gutiérrez Gregoric, Diego Eduardo; Peso, Juana Guadalupe; Griffin, Miguel; Rumi Macchi Zubiaurre, AlejandraPublication A phylogeographical perspective on the ex situ conservation of Aylacostoma (Thiaridae, Gastropoda) from the High Paraná River (Argentina-Paraguay)(2015) Voget, Claudio Enrique; Beltramino, Ariel Anibal; Strong, Ellen E.; Peso, Juana Guadalupe; Rumi Macchi Zubiaurre, AlejandraPublication Sucesión espacio-temporal del plancton y bentos en periodos posteriores al llenado del embalse Yacyretá (RÃo Paraná, Argentina-Paraguay)(2010) Meichtry, Norma; Peso, Juana Guadalupe; Garrido, Gladys; Voget, Claudio EnriquePublication The invasive snail Melanoides tuberculata in Argentina and Paraguay(2011) Peso, Juana Guadalupe; Pérez, Diego C.; Voget, Claudio EnriquePublication Hidden diversity in waterfall environments: The genus Acrorbis (Gastropoda: Planorbidae) from the Upper-Paraná Atlantic Forest(2019) Vogler, Roberto Eugenio; Rumi Macchi Zubiaurre, Alejandra; Guzman, Leila Belén; Beltramino, Ariel Anibal; Serniotti, Enzo Noel; Ferrari, Walter; Peso, Juana GuadalupeHigh-energy freshwater environments such as rapids and waterfalls in the Upper-Parana Atlantic Forest are home to highly endemic minute freshwater snails of the genus Acrorbis. Only one species, Acrorbis petricola, is currently included within this genus, whose geographical distribution is restricted to three known populations, one in Brazil and the other two in Argentina. Because of habitat specificity and limited geographical distribution, the species is considered vulnerable in Argentina and endangered in Brazil. In this work, we identify five new populations of A. petricola in southern Upper-Parana´ Atlantic Forest, exclusively found on waterfalls from the Misiones Province, Argentina. Based on these populations and on specimens of one of the two historical populations from the Misiones Province, we explored the morphological features of shells and reproductive system of specimens from each location and provide the first molecular data on the species. We used DNA sequences from cytochrome c oxidase subunit I (COI) and 16S-rRNA genes to investigate the molecular diversity, genetic distances and genealogical relationships among populations. We verified the existence of intra- and interpopulation morphological variability, with the greatest variation being found in spire, spiral sculpture, penis sheath, flagella, prostatic diverticula and bursa copulatrix. We found interpopulation genetic diversity, with no intrapopulation variation, and identified six geographically structured genetic lineages with maximum genetic distances of up to 2.3%. Different combinations of morphological characters with the same genetic background within each locality were observed. The finding of new populations genetically differentiated not only broadens the known distribution of the species, but also illustrates that waterfall environments in the Atlantic Forest harbour a hidden diversity of Acrorbis that still remains to be discovered. This scenario suggests a complex evolutionary history that needs to be unveiled and taken into account for future development of conservation strategies in this endemic genus.Publication New record and range extension of Bradybaena similaris (Férussac, 1822) (Gastropoda, Camaenidae) in Argentina(2020) Serniotti, Enzo Noel; Guzman, Leila Belén; Vogler, Roberto Eugenio; Rumi Macchi Zubiaurre, Alejandra; Peso, Juana Guadalupe; Beltramino, Ariel AnibalThe Asian tramp snail Bradybaena similaris (Férussac, 1822) is an exotic mollusk native to Southeast Asia. The species has been catalogued as invasive in several countries and is important to human health, animal health, and agriculture. We report for the first time the presence of B. similaris in Córdoba Province, Argentina, extending the southern distribution of the species in this country and in South America. Anatomical, conchological, and molecular information obtained here represent the second contribution for this species in Argentina.