Calomys musculinus
Taxonomy [top]
| Kingdom | Phylum | Class | Order | Family |
|---|---|---|---|---|
| ANIMALIA | CHORDATA | MAMMALIA | RODENTIA | CRICETIDAE |
| Scientific Name: | Calomys musculinus | |||
| Species Authority: | (Thomas, 1913) | |||
Common Name/s:
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| Taxonomic Notes: | Included in C. laucha by Hershkovitz (1962) but morphological and karyotypic evidence supports its specific status (Corti et al. 1987). Synonymy follows Massoia et al. (1968) and Contreras and Rosi (1980), who considered murillus a subspecies of C. musculinus; others have treated the former as a species (Reig 1986). In the molecular study of Salazar-Bravo et al. (2001), it is noteworthy that their sample of C. musculinus from Buenos Aires Province, presumably referable to murillus proper (type locality La Plata, Buenos Aires Prov.), was genetically like population samples drawn from NW Argentina, presumably referable to musculinus proper. Until the issue can be substantively resolved, we continue to view murillus as a subjective synonym. Further research into taxonomic issues is necessary. | |||
Assessment Information [top]
| Red List Category & Criteria: | Least Concern ver 3.1 | |||
| Year Assessed: | 2008 | |||
| Assessor/s: | Pardinas, U. & D'Elia, G. | |||
| Reviewer/s: | Amori, G. (Small Nonvolant Mammal Red List Authority) & Schipper, J. (Global Mammal Assessment Team) | |||
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Justification: This species is listed as Least Concern in view of its wide distribution, presumed large population, and because it is unlikely to be declining at nearly the rate required to qualify for listing in a threatened category. |
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| History: |
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Geographic Range [top]
| Range Description: | This species occurs in arid habitats over wide elevations in west central Bolivia (Anderson, 1997), western Paraguay, and Argentina (Jujuy and Salta provinces as far south as Chubut; Díaz 2000; Mares et al. 1997; Ortiz et al. 2000; Pearson 1995); limits uncertain (Musser and Carleton 2005). Pocasi et al. (2005) predict that the range extends to parts of Peru and Uruguay and Salazar-Bravo et al. (2001) suggest the range may extend as far as central Brazil - but no records have been found to validate these inferences. |
| Countries: |
Native:
Argentina; Bolivia; Paraguay
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| Range Map: | Click here to open the map viewer and explore range. |
Population [top]
| Population: | This species is abundant. |
| Population Trend: |
Stable
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Habitat and Ecology [top]
| Habitat and Ecology: | This species is seasonally reproductive, breeding during the longer photoperiods from spring to the beginning of autumn (Buzzio and Castro-Vasquez 2002). It is a highland species typically found at middle elevations above 1,000 m (Salazar-Bravo et al. 2001).This species occurs in lower abundances in disturbed areas and favours shrubland creosotebush habitats (Tabeni and Ojeda 2005). Found strongly associated with croplands in Argentine agroecosystems (Yahnke 2006). |
| Systems: | Terrestrial |
Threats [top]
| Major Threat(s): | No major threats for this species. |
Conservation Actions [top]
| Conservation Actions: | The range includes several protected areas. |
Bibliography [top]
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Buzzio, O. L. and Castro-Vasquez, A. 2002. Reproductive biology of the corn mouse, Calomys muscilinus, a Neotropical Sigmodontine. Mastozoología Neotropical 9(2): 135-158. Contreras, J. R. and Rosi, M. I. 1980. El raton de campo Calomys muscilinus codovensis (Thomas) en la provincia de Mendoza. I. Consideraciones Taxonomicas. Historia Natural 1: 17-25. Corti, M., Merani, M. S. and de Villafane, G. 1987. Multivariate morphometrics of vesper mice (Calomys): Preliminary assessment of species, population, and strain divergence. Zeitschrift für Säugetierkunde 52: 236-242. Hershkovitz, P. 1962. Evolution of Neotropical cricetine rodents (Muridae) with special reference to the phyllotine group. Fieldiana: Zoology 46: 1-524. Mares, M. A. , Ojeda, R. A., Braun, J. K. and Barquez, R. A. 1997. Systematics, distribution, and ecology of the mammals of Catamarca Province, Argentina. In: T. L. Yates, W. L. Gannon, D. E. Wilson (ed.), Life among the muses: Papers in honor of James S. Findley. The Museum of Southwestern Biology, University of New Mexico, Albuquerque, New Mexico, USA. Massoia, E., Fornes, A., Wainberg, R. L. and De Fronza, T. G. 1968. Nuevos aportes al conocimiento de las especies bonaerenses del genero Calomys (Rodentia-Cricetidae). Revista de Investigaciones Agropecuarias, INTA, Serie 1, Biologi¡a y Produccion Animal 5: 63-92. Pearson, O. P. 1995. Annotated keys for identifying small mammals living in or near Nahuel Huapi National Park or Lanin National Park, southern Argentina. Mastozoología Neotropical 2: 99-148. Salazar-Bravo, J., Dragoo, J. W., Tinnin, D. S. and Yates, T. L. 2001. Phylogeny and Evolution of the Neotropical Rodent Genus Calomys: Inferences from Mitochondrial DNA Sequence Data. Molecular Phylogenetics and Evolution 20(2): 173-184. Tabeni, S. and Ojeda, R. A. 2005. Ecology of the Monte Desert small mammals in disturbed and undisturbed habitats. Journal of Arid Environments 63: 244-255. Yahnke, C. J. 2006. Habitat use and natural history of small mammals in the central Paraguayan Chaco. Mastozoología Neotropical 13(1): 103-116. |
| Citation: | Pardinas, U. & D'Elia, G. 2008. Calomys musculinus. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 10 February 2012. |
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