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We analysed distributional data of 30 species of Oribatid mites of the Subantarctic subregion of southern South America in order to contribute to elucidate their biotic evolution. We constructed individual tracks for the species analysed, based on published and unpublished records. After superposing them we obtained six generalized tracks and five nodes. Four generalized tracks (T2, T3, T4 and T6) extend along and near the Andean ranges, whereas two generalized tracks (T1 and T5) may be artefacts caused by the lack of information. The generalized tracks and nodes show the complex relationships of the austral biota, as hypothesized in previous contributions based on other plant and animal taxa. Fil: Ruiz, Erica Vanesa Ruiz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Centro de Investigación Esquel de Montaña y Estepa Patagóica. Universidad Nacional de la Patagonia "San Juan Bosco". Facultad de Ciencias Naturales - Sede Esquel. Centro de Investigación Esquel de Montaña y Estepa Patagónica; Argentina Fil: Romano, Gonzalo Matías. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia; Argentina Fil: Morrone, Juan José. Universidad Nacional Autónoma de México; México |
