Abstract
Studies under laboratory conditions on the natural history of wild rodents allow detecting certain attributes that are difficult to observe in their natural environment, for example, litter development. Therefore, for three pups of Nephelomys meridensis, growth features were described in a controlled environment. Photographic and weighting records were obtained during the monitoring of this species, and we also recorded other changes that occurred along with the observations. Data about the characteristics of fur, eye-opening, and the mobility of the breeding were reported as well.
References
Cárdenas-González C. 2017. Taxonomía y distribución del género de roedores andinos: Nephelomys (Cricetidae: Sigmodontinae) en Colombia. Tesis de Maestría. Universidad Nacional de Colombia. Bogotá. https://repositorio.unal.edu.co/handle/unal/59609
Conto D. 2007. Reproduction, development and growth of Akodon lindberghi (Hershkovitz, 1990) (Rodentia, Muridae, Sigmodontinae). Brazilian Journal of Biology 67(4):707-13. https://doi.org/10.1590/S1519-69842007000400017
Durant O, Perez R. 1982. Actividad reproductiva y crecimiento en dos poblaciones de Sigmodon hispidus (Rodentia : Cricetidae). Acta Científica Venezolana 33: 249-254.
Mello DA. 1978. Some aspects of the biology of Oryzomys eliurus (Wagner, 1845) under laboratory conditions (Rodentia, Cricetidae). Revista Brasileira de Biologia, 38(2), 293-295.
Mello DA. 1986. Estudos sobre o ciclo biológico de Holochilus brasiliensis (Cricetidae, Rodentia) em laboratório. Boletim do Museu Paraense Emílio Goeldi, Zoologia, 2, 181-192.
Mello DA, Mathias CH. 1987. Breeding of Akodon arviculoides (Rodentia, Cricetidae) in the laboratory. Revista Brasileira de Biologia, 47(3), 419-423.
Moscarella RA, Aguilera M. 1999. Growth and reproduction of Oryzomys albigularis (Rodentia : Sigmodontinae) under laboratory conditions. Mammalia 63 (3), 349-362 https://doi.org/10.1515/mamm.1999.63.3.349
Moscarella RA, Benado M, Aguilera M. 2001. A comparative assessment of growth curves as estimators of male and female ontogeny in Oryzomys albigularis. Journal of Mammalogy 82(2):520–526. https://doi.org/10.1644/1545-1542(2001)082<0520:ACAOGC>2.0.CO;2
Tesh RB. 1970. Notes on the reproduction, growth, and development of echimyid rodents in Panama. Journal of Mammalogy, 51(1), 199-202. https://doi.org/10.2307/1378568
Van Engelen MA, Nielsen MK, Ribeiro EL. 1995. Differences in pup birth weight, pup variability within litters, and dam weight of mice selected for alternative criteria to increase litter size. Journal of Animal Science 73(7):1948–1953. https://doi.org/10.2527/1995.7371948x
Villamizar-Ramírez ÁM, Serrano-Cardozo VH, Ramírez-Pinilla MP. 2017. Reproductive activity of a population of Nephelomys meridensis (Rodentia: Cricetidae) in Colombia. Mastozoología Neotropical. 24(1):177–189.
Weksler M. 2006. Phylogenetic Relationships of Oryzomine Rodents (Muroidea: Sigmodontinae): Separate and Combined Analyses of Morphological and Molecular Data. Bulletin of the American Museum of Natural History 296(296):1–149. https://doi.org/10.1206/0003-0090(2006)296[0001:PROORM]2.0.CO;2

This work is licensed under a Creative Commons Attribution 4.0 International License.

