Digestive tracts of armadillos: an approach to their dimensions
DOI:
https://doi.org/10.31687/SaremNMS22.6.4Keywords:
armadillos, body mass, body length, intestine, XenarthraAbstract
In this note, we registered the length of the small and large intestines of nine armadillo species (Cabassous chacoensis, Chaetophractus vellerosus, Chaetophractus villosus, Chlamyphorus truncatus, Dasypus hybridus, D. novemcinctus, Euphractus sexcinctus, Tolypeutes matacus and Zaedyus pichiy). Based on data obtained from the literature, we made an approximation of the relationship between the digestive tract length and two morphometric variables (body mass and body length) for six of the nine armadillo species. Although allometric analyses are necessary to confirm this, body mass could be a morphometric variable that allows inferring the length of the small intestine of different armadillo species, expecting greater length for species with greater body mass.
References
Abba A. M., G. H. Cassini, & F. C. Galliari. 2011. Nuevos aportes a la historia natural de la mulita pampeana Dasypus hybridus (Mammalia: Dasypodidae). Iheringia, Série Zoologia 101:325–335.
Abba, A. M., & M. Superina. 2016. Dasypus hybridus (Cingulata: Dasypodidae). Mammalian Species 48:10–20. https://doi.org/10.1093/mspecies/sew001.
Carlini, A. A., E. Soibelzon, & D. Glaz. 2016. Chaetophractus vellerosus (Cingulata: Dasypodidae). Mammalian Species 48:73–82. https://doi.org/10.1093/mspecies/sew008.
Carvalho M. M., et al. 2014. Caracterização comparativa do intestino das espécies da Ordem Xenarthra. Pesquisa Veterinaria Brasileira 34:49–56. https://doi.org/10.1590/S0100-736X2014001300010.
Díaz, M. M., & R. M. Barquez. 2002. Los mamíferos de Jujuy, Argentina. L.O.L.A. (Literature of Latin America), Buenos Aires.
Estecondo, S., S. M. Codon, & E. Casanave. 1995. Histología del tracto digestivo de Chaetophractus villosus (Desmarest, 1804) y Chaetophractus vellerosus (Gray, 1865) (Mammalia, Dasypodidae). Iheringia, Série Zoologia 78:9–18.
Estecondo, S., S. M. Codon, & E. B. Casanave. 1996. Histological study of the digestive tract of Dasypus hybridus and Zaedyus pichiy (Mammalia, Dasypodidae). Iheringia, Série Zoologia 81:7–12.
Ezquiaga, M. C. 2013. Estudios parasitológicos en Dasypodidae (Mammalia, Xenarthra) de Argentina: el valor de la diversidad en la interpretación de las asociaciones parásito-hospedador-ambiente. Tesis doctoral. Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, La Plata, Argentina.
Gallo, J. A., M. C. Ezquiaga, L. Fasola, & A. M. Abba. 2021. Helminth-fauna of Patagonian armadillos: comparative analysis of parasites geographical variation. Anais da Academia Brasileira de Ciências 93:1–12. https://doi.org/10.1590/0001-3765202120210624. eCollection 2021.
Gallo, J. A., M. Superina, & A. M. Abba. 2022. Chaetophractus villosus (Cingulata: Chlamyphoridae). Mammalian Species 54:186–201. https://doi.org/10.1093/mspecies/seab017.
McNab, B. K. 1985. Energetics, population biology, and distribution of Xenarthrans, living and extinct. The evolution and ecology of armadillos, sloths and vermilinguas. (G. G. Montgomery, ed.). Smithsonian Institution Press, Washington, London.
Nagya, K. A., & G. G. Montgomery. 2012. Field metabolic rate, water flux and food consumption by free-living Silky Anteaters (Cyclopes didactylus) in Panama. Edentata 13:61–65.
Olocco Diz, M. J., B. Quse, & G. G. Gachen. 2006. Registro de medidas y pesos del tubo digestivo de un ejemplar de Chaetophractus villosus. Edentata 7:23–25.
Parera, A., & F. Erize. 2002. Los mamíferos de la Argentina y la región austral de Sudamérica. Editorial El Ateneo, Buenos Aires.
Redford, K. H., & R. M. Wetzel. 1985. Euphractus sexcinctus. Mammalian Species 245:1–4. https://doi.org/10.2307/3503786.
Ríos, T. A. 2020. Estudios parasitológicos en xenartros (Mammalia: Xenarthra) del Chaco argentino. Tesis Doctoral. Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, La Plata, Argentina.
Superina, M., & A. M. Abba. 2018a. Zaedyus pichiy (Cingulata: Dasypodidae). Mammalian Species 46:1–10. https://doi.org/10.1644/905.1.
Superina, M., & A. M. Abba. 2018b. Family Chlamyphoridae (Chlamyphorid armadillos). Handbook of the mammals of the world. Volume 8. Insectivores, sloths and colugos. (D. E. Wilson & R. A. Mittermeier, eds.). Lynx Edicions, Barcelona.
Vizcaíno, S. F., M. S. Bargo, R. F. Kay, & N. Milne. 2006. The armadillos (Mammalia, Xenarthra, Dasypodidae) of the Santa Cruz formation (early-middle Miocene): An approach to their paleobiology. Palaeogeography Palaeoclimatology Palaeoecology 237:255–269. https://doi.org/10.1016/j.palaeo.2005.12.006.
Vizcaíno, S. F. 2009. The teeth of the “toothless”: novelties and key innovations in the evolution of xenarthrans (Mammalia, Xenarthra). Paleobiology 35:343–366. https://doi.org/10.1666/0094-8373-35.3.343.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2022 Jorge A. Gallo, Tatiana A. Rios, Noralí Pagnutti, María Cecilia Ezquiaga, Agustín M. Abba
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
