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A new species of the rodent genus Necromys Ameghino (Cricetidae: Sigmodontinae: Akodontini) from the Chaco Serrano grasslands of northwestern Argentina
| Indexado |
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| DOI | 10.1093/JMAMMAL/GYW103 | ||||
| Año | 2016 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
Abstract
In this study, we name and describe a new species of the genus Necromys from northwestern Argentina based on molecular (mtDNA of 77 specimens) and morphologic (assessment of 129 specimens) evidence. Results indicate that the new form is sister species to N. amoenus and highly divergent genetically from all other species of Necromys (>= 11.6% divergent). Similarly, the new species presents several unique morphological differences (in skin and skull characters) compared with all other species of the genus and is morphometrically distinct compared with 4 Argentine taxa. Finally, we assess the lectotype of Necromys conifer, discuss its morphologic similarities with other species of the genus, and argue for maintenance of the name Necromys. The description of this new species highlights, once again, the continuing need for collecting small mammals and conducting collections-based research.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | JAYAT, JORGE PABLO | Hombre |
Univ Nacl Chilecito - Argentina
Univ Nacl Tucuman - Argentina Universidad Nacional de Chilecito - Argentina Universidad Nacional de Tucuman (UNT) - Argentina |
| 1 | Jayat, Pablo | - |
Universidad Nacional de Chilecito - Argentina
Universidad Nacional de Tucuman (UNT) - Argentina |
| 2 | D'ELIA-VARGAS, GUILLERMO | Hombre |
Universidad Austral de Chile - Chile
|
| 3 | Ortiz, Pablo E. | Hombre |
Univ Nacl Tucuman - Argentina
Universidad Nacional de Tucuman (UNT) - Argentina |
| 4 | Teta, Pablo | Hombre |
Museo Argentino Ciencias Nat Bernardino Rivadavia - Argentina
Museo Argentino de Ciencias Naturales Bernardino Rivadavia - Argentina |
| Fuente |
|---|
| FONDECYT |
| Consejo Nacional de Investigaciones Científicas y Técnicas |
| Universidad Nacional de Tucumán |
| Fondo Nacional de Desarrollo Científico, Tecnológico y de Innovación Tecnológica |
| Fondo Nacional de Desarrollo CientÃfico, Tecnológico y de Innovación Tecnológica |
| Consejo Nacional de Investigaciones CientÃficas y Técnicas |
| Catedra de Paleontologia de la Universidad Nacional de Tucuman |
| Instituto Superior de Correlacion Geologica (CONICET) |
| Instituto de Ecologia Regional, Laboratorio de Investigaciones Ecologicas de Las Yungas (Universidad Nacional de Tucuman) |
| Universidad Nacional de Chilecito (UNdeC) |
| Instituto de Ambiente de Montana y Regiones Aridas |
| Instituto Superior de Correlacion Geologica (Universidad Nacional de Tucuman) |
| Universidad Nacional de Chilecito |
| Instituto Superior de Correlación Geológica |
| Instituto de Ecologia Regional |
| Agradecimiento |
|---|
| We thank the numerous assistants who helped us with the field work in northwestern Argentina, especially G. Namen, D. Miotti, W. Villafane (Almita), and R. Gonzalez. We are indebted to all the curators of the museum collections for allowing access to specimens under their care. Special thanks to R. Harbord who kindly provided the photographs of the holotypes of Akodon amoenus, A. lactens, A. orbus, and Bolomys negrito. M. D. Carleton and J. Vilela made valuable suggestions on an earlier version of this contribution. Support was provided by the Instituto de Ambiente de Montana y Regiones Aridas, Universidad Nacional de Chilecito (UNdeC), the Instituto Superior de Correlacion Geologica (CONICET and Universidad Nacional de Tucuman), the Catedra de Paleontologia de la Universidad Nacional de Tucuman, and the Instituto de Ecologia Regional, Laboratorio de Investigaciones Ecologicas de Las Yungas (Universidad Nacional de Tucuman). Financial support was provided by FONDECYT 1141055 to GD, and PICT 2012-0050 to JPJ. |
| We thank the numerous assistants who helped us with the field work in northwestern Argentina, especially G. Namen, D. Miotti, W. Villafane (Almita), and R. Gonzalez. We are indebted to all the curators of the museum collections for allowing access to specimens under their care. Special thanks to R. Harbord who kindly provided the photographs of the holotypes of Akodon amoenus, A. lactens, A. orbus, and Bolomys negrito. M. D. Carleton and J. Vilela made valuable suggestions on an earlier version of this contribution. Support was provided by the Instituto de Ambiente de Montana y Regiones Aridas, Universidad Nacional de Chilecito (UNdeC), the Instituto Superior de Correlacion Geologica (CONICET and Universidad Nacional de Tucuman), the Catedra de Paleontologia de la Universidad Nacional de Tucuman, and the Instituto de Ecologia Regional, Laboratorio de Investigaciones Ecologicas de Las Yungas (Universidad Nacional de Tucuman). Financial support was provided by FONDECYT 1141055 to GD, and PICT 2012-0050 to JPJ |
