Browsing by Autor "Sergio Solari"

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    A new species of Carollia (Chiroptera: Phyllostomidae) from the Andes of Peru and Bolivia
    (2004) Víctor Pacheco; Sergio Solari; Paúl M. Velazco
    Carollia is a genus of relatively common phyllostomid bats.Six species are recognized: brevicauda, castanea, colombiana, perspicillala, sowelli, and subrufa.In this paper, we describe and name a new species from the montane forests of Peru and Bolivia.The new taxon was first taken in Puno department, southeastern Peru, more than 50 years ago.Now, a series of 23 specimens documents the distribution of this species from Cuzco, Madre de Dios, and Puno departments in southeastern Peru to La Paz department, in northern Bolivia, and from 1300 to 2250 m in elevation.The new species has been found to be sympatric with brevicauda at several localities, and both are sympatric with perspicillata at a single local¬ ity in Cuzco.We outline and discuss the distribution of the new species and of others of the genus Carollia. ResumenCarollia es un genero de murcielagos filostomidos relativamente comunes.
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    Systematics and diversification of the Ichthyomyini (Cricetidae, Sigmodontinae) revisited: evidence from molecular, morphological, and combined approaches
    (PeerJ, Inc., 2023) Jorge Salazar‐Bravo; Nicolás Tinoco; Horacio Zeballos; Jorge Brito; Daniela Arenas-Viveros; David Marín-C.; José D. Ramírez-Fernández; Alexandre Reis Percequillo; Thomas E. Lee; Sergio Solari
    Ichthyomyini, a morphologically distinctive group of Neotropical cricetid rodents, lacks an integrative study of its systematics and biogeography. Since this tribe is a crucial element of the Sigmodontinae, the most speciose subfamily of the Cricetidae, we conducted a study that includes most of its recognized diversity (five genera and 19 species distributed from southern Mexico to northern Bolivia). For this report we analyzed a combined matrix composed of four molecular markers (<i>RBP3</i>, <i>GHR</i>, <i>RAG1</i>, <i>Cytb</i>) and 56 morphological traits, the latter including 15 external, 14 cranial, 19 dental, five soft-anatomical and three postcranial features. A variety of results were obtained, some of which are inconsistent with the currently accepted classification and understanding of the tribe. Ichthyomyini is retrieved as monophyletic, and it is divided into two main clades that are here recognized as subtribes: one to contain the genus <i>Anotomys</i> and the other composed by the remaining genera. <i>Neusticomys</i> (as currently recognized) was found to consist of two well supported clades, one of which corresponds to the original concept of <i>Daptomys</i>. Accordingly, we propose the resurrection of the latter as a valid genus to include several species from low to middle elevations and restrict <i>Neusticomys</i> to several highland forms. Numerous other revisions are necessary to reconcile the alpha taxonomy of ichthyomyines with our phylogenetic results, including placement of the Cajas Plateau water rat (formerly <i>Chibchanomys orcesi</i>) in the genus <i>Neusticomys</i> (<i>sensu stricto</i>), and the recognition of at least two new species (one in <i>Neusticomys</i>, one in <i>Daptomys</i>). Additional work is necessary to confirm other unanticipated results, such as the non-monophyletic nature of <i>Rheomys</i> and the presence of a possible new genus and species from Peru. Our results also suggest that ichthyomyines are one of the main Andean radiations of sigmodontine cricetids, with an evolutionary history dating to the Late Miocene and subsequent cladogenesis during the Pleistocene.