Skip to main content
Log in

Unraveling the cryptic life of the southern naked-tailed armadillo, Cabassous unicinctus squamicaudis (Lund, 1845), in a Neotropical wetland: Home range, activity pattern, burrow use and reproductive behaviour

  • Original investigation
  • Published:
Mammalian Biology Aims and scope Submit manuscript

Abstract

The natural history of the southern naked-tailed armadillo Cabassous unicinctus squamicaudis is not well known. Here, we provide basic information about burrow systems, home ranges, activity, morphometric measures, and reproductive behaviour. We monitored 10 individuals through VHF telemetry and direct observations in the central Pantanal of Brazil for 24 months. Males (2.06km2) had significantly larger home ranges than females (0.59 km2) and home ranges of males overlapped with those of several females. There was very little overlap in ranges of the same sex and very few social interactions were observed. Southern naked-tailed armadillos dug convoluted galleries to forage, and, unless they used their entrance to exit, they emerged on average 2m away (ranging from 0.01 m to 17m) from the burrow entrance. When leaving their burrows, they spend on average 6.5 min above ground, travelling an average of 83 m (ranging from 1 m to 781 m) before going back underground. They do not return to sleep in a particular burrow, changing burrows frequently. The studied armadillos were diurnal, and spend 99.25% of the day underground, emerging only during the hottest period of the day (mid-afternoon). The southern naked-tailed armadillos should be classified as a subterranean species, rather than fossorial since they spent most of their time underground where foraging also takes place. Minimum densities of C. u. squamicaudis were estimated at 2.21 adults/km2. Gestation was estimated to last for 4 months. Parental care of a single young lasted on average 4 months. Niche overlap between E. sexcinctus and C. u. squamicaudis in the study area is minimal.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  • Abba, A.M., Superina, M., 2010. The 2009/2010 armadillo red list assessment. Edentata 11 (2), 135–184.

    Google Scholar 

  • Abba, A.M., Cassini, G.H., Valverde, G., Tilak, M., Vizcaíno, S.F., Superina, M., Delsuc, F., 2015. Systematics of hairy armadillos and the taxonomic status of the Andean hairy armadillo (Chaetophractus nationi). J. Mamm. 96, 673–689.

    Article  Google Scholar 

  • Altmann, J., 1974. Observational study of behaviour: sampling methods. Behaviour 49, 227–267.

    Article  CAS  Google Scholar 

  • Anacleto, T.C.S., 2007. Food habits of four armadillo species in the Cerrado Area, Mato Grosso Brazil. Zool. Stud. 46, 529–537.

    Google Scholar 

  • Begall, S., Burda, H., Schleich, C.E., 2007. Subterranean Rodents: News From Underground. Springer, Heildeberg.

    Book  Google Scholar 

  • Benfica, C.E.R.T., 2013. Diversidade e uso do habitat por rapinantes diurnos em uma area protegida do Cerrado, Sudeste do Brasil. Dissertaçao de Mestrado. Instituto de Biociencias de São Paulo, Departamento de Ecologia, Universidade de São Paulo, SP.

    Google Scholar 

  • Bonato, V., Martins, E.G., Machado, G., Silva, C.Q.D., Reis, S.F.D., 2008. Ecology of the armadillos Cabassous unicinctus and Euphractus sexcinctus (Cingulata: Dasypodidae) in the Brazilian Cerrado. J. Mamm. 89, 168–174.

    Article  Google Scholar 

  • Borges, P.A.L., Tomás, W.M., 2008. Guia de rastros e outros vestígios de mamíferos do Pantanal. Embrapa Pantanal, Corumbá, MS.

    Google Scholar 

  • Borghi, C.E., Campos, C.M., Giannoni, S.M., Campos, V.E., Sillero-Zubiri, C., 2011. Updated distribution of the pink fairy armadillo Chlamyphorus truncatus (Xenarthra, Dasypodidae), the world’s smallest armadillo. Edentata 12, 14–19.

    Article  Google Scholar 

  • Campos, Z., Muniz, F., Desbiez, A.L.J., Magnusson, W.E., 2016. Predation on eggs of Schneider’s dwarf caiman, Paleosuchus trigonatus (Schneider, 1807), by armadillos and other predators. J. Nat. Hist. 50, 1543–1548.

    Article  Google Scholar 

  • Carter, T.S., Encarnação, C.D., 1983. Characteristics and use of burrows by four species of armadillo in Brazil. J. Mamm. 64, 103–108.

    Article  Google Scholar 

  • Carter, T.S., 1985. Armadillos of Brazil. National Geographic Society Research Reports, 20., pp. 101–107.

    Google Scholar 

  • Dalponte, J.C, Tavares-Filho, J.A., 2004. Diet of the yellow armadillo Euphractus sexcinctus in south-central Brazil. Edentata 6, 37–41.

    Article  Google Scholar 

  • ESRI, 2016. ArcGIS Desktop: Release 10.4. Environmental Systems Research Institute, Redlands, CA.

    Google Scholar 

  • Eisenberg, J.F., Redford, K.H., 1999. Mammals of the Neotropics: The Central Neotropics. The University of Chicago Press Chicago, IL, Ecuador, Peru, Bolívia, Brazil.

    Google Scholar 

  • Emerling, C.A., Springer, M.S., 2015. Genomic evidence for rod monochromacy in sloths and armadillos suggests early subterranean history for Xenarthra. Proc. R. Soc. Lond. [Biol]. 282, e20142192.

  • Emmons, L.H., Feer, F., 1997. Neotropical Rainforest Mammals: A Field Guide. The University of Chicago Press, Chicago, IL.

    Google Scholar 

  • Encarnação, C.D., 1987. Contribuicão à Ecologia dos Tatus (Xenarthra, Dasypodidae) Serra da Canastra, Minas Gerais. Mestrado em Zoologia, Museu Nacional Universidade Federal do Rio de Janeiro, Universidade Federal do Rio deJaneiro, Rio de Janeiro, RJ, 210pp.

    Google Scholar 

  • Feijó, A., Cordeiro-Estrela, P., 2016. Taxonomic revision of the Dasypus kappleri complex, with revalidations of Dasypus pastasae (Thomas, 1901) and Dasypus beniensis Lönnberg, 1942 (Cingulata, Dasypodidae). Zootaxa 4170, 271–297.

    Article  Google Scholar 

  • Foster, V.C., Sarmento, P., Sollmann, R., Tôrres, N., Jácomo, A.T.A., Negrões, N., Fonseca, C., Silveira, L., 2013. Jaguar and puma activity patterns and predator-prey interactions in four Brazilian biomes. Biotropica 45, 373–379.

    Article  Google Scholar 

  • Greene, H.W., 2005. Organisms in nature as a central focus for biology. Trends Ecol. Evol. 20 (1), 23–27.

    Article  Google Scholar 

  • Loughry, W.J., McDonough, C.M., 2013. Beyond natural history: some thoughts about research priorities in the study of xenarthrans. Edentata 14, 9–14.

    Article  Google Scholar 

  • Loughry, W.J., Superina, M., McDonough, C., Abba, A.M., 2015. Research on armadillos: a review and prospectus. J. Mamm. 96, 635–644.

    Article  Google Scholar 

  • Maccarini, T.B., Attias, N., Medri, I.M., Marinho-Filho, J., Mourão, G.M., 2015. Temperature influences the activity patterns of armadillo species in a large neotropical wetland. Mamm. Res. 60, 403–409.

    Article  Google Scholar 

  • Massocato, F.G., Desbiez, A.L.J., 2017. Presençae importanciadotatu-canastra Priodontes maximus (Kerr, 1792) na maiorárea protegida do leste do Estado de Mato Grosso do Sul, Brasil. Edentata 18, 26–33.

    Google Scholar 

  • McDonough, C.M., Loughry, W.J., 2003. Armadillos (Dasypodidae). In: Hutchins, M. (Ed.), Grzimekís Animal Life Encyclopedia. Gale Group, Farmington Hill, UK, pp. 181–192.

    Google Scholar 

  • McDonough, C.M., Loughry, W.J., 2008. Behavioural ecology of armadillos. In: Vizcaíno, S.F., Loughry, W.J. (Eds.), The Biology of the Xenarthra. University Press of Florida, Gainesville, FL, pp. 281–293.

    Google Scholar 

  • McDonough, C.M., 1997. Pairing behavior of the nine-banded armadillo (Dasypus novemcinctus). Am. Mid. Nat. 138, 290–298.

    Article  Google Scholar 

  • McNab, B.K., 1980. Energetics and the limits to atemperate distribution in armadillos. J. Mamm. 61, 606–627.

    Article  Google Scholar 

  • Medri, I.M., Mourão, G.M., Rodrigues, F.H.G., 2011. Ordem Cingulata. In: Reis, N.R., Peracchi, A.L., Pedro, W.A., Lima, I.P. (Eds.), Mamíferos do Brasil, Author’s Edition. Londrina, pp. 75–90.

    Google Scholar 

  • Medri, I.M., 2008. Ecologia e História Natural do Tatu-peba, Euphractus sexcinctus (Linnaeus, 1758), no Pantanal da Nhecolândia, Mato Grosso do Sul. Instituto de Ciências Biológicas, Departamento de Ecologia, Programa de Pós - Graduação em Ecologia, Universidade de Brasília, Brasília, DF, 167 pp.

    Google Scholar 

  • Monguillot, J.C., Miatello, R., 2009. Presencia de Cabassous chacoensis en el Parque Nacional Talampaya La Rioja, Argentina. Edentata 8-10, 56–57.

    Google Scholar 

  • Pinheiro, J.C., Bates, D.M., 2000. Linear mixed-effects models: basic concepts and examples. In: Mixed-Effects Models in S and S-Plus., pp. 3–56.

    Google Scholar 

  • Porfirio, G., Foster, V.C., Fonseca, C, Sarmento, P., 2016. Activity patterns of ocelots and their potential prey in the Brazilian Pantanal. Mamm. Biol. 81, 511–517.

    Article  Google Scholar 

  • R Development Core Team, 2016. R: A Language and Environment forStatistical Computing. The R Foundation forStatistical Computing.

    Google Scholar 

  • Redford, K.H., Wetzel, R.M., 1985. Euphractus sexcicntus. Mamm. Species 252, 1–4.

    Article  Google Scholar 

  • Redford, K.H., 1985. Food habits of armadillos (Xenarthra, Dasypodidae). In: Montgomery, G.G. (Ed.), The Evolution and Ecology of Armadillos, Sloths, and Vermilinguas. Smithsonian Institution Press, Washington, DC, pp. 429–438.

    Google Scholar 

  • Rodgers, A.R., Kie, J.G., 2011. HRT: Home Range Tools for ArcGIS - User’s Manual-V 1.1. Centre for Northern Forest Ecosystem Research, Ontario, Canada.

    Google Scholar 

  • Samuel, M.D., Fuller, M.R., 1994. Wildlife radiotelemetry. In: Bookhout, T.A. (Ed.), Research and Management Techniques for Wildlife and Habitats. The Wildlife Society, Bethesda, pp. 370–418.

    Google Scholar 

  • Sarwas, R., 2016. Animal Movement Extension Scripts for ArcGIS, Disponível em: https://github.com/regan-sarwas/AnimalMovement. Consulted: 27 June 2016.

    Google Scholar 

  • Schoener, T.W., 1974. Resource partitioning in ecological communities. Science 185, 27–39.

    Article  CAS  Google Scholar 

  • Smith, P., Owen, R.D., Atkinson, K., Del Castillo, H., Northcote-Smith, E., 2011. First records of the southern naked-tailed armadillo Cabassous unicinctus (Cingulata: Dasypodidae) in Paraguay. Edentata 12, 53–57.

    Article  Google Scholar 

  • Smith, P., 2011. Southern Naked-Tailed ArmadilloCabassous Unicinctus-Mammals of Paraguay N° 40, 10pp.

  • Soriano, B.M.A., 2000. Boletim Agrometeorológico: Fazenda Nhumirim. Embrapa Pantanal. Boletim Agrometeorológico 4, 81pp.

  • Superina, M., Trujillo, F., 2013. Armadillos del Mundo. In: Trujillo, F., Superina (Eds.), Armadillos de los Llanos Orientales. Fundacion Omacha, ODL, Corporinoquia, Cormacarena, Bioparque los Ocarros, Corpometa, Bogotá, pp. 28–47.

    Google Scholar 

  • Superina, M., Pagnutti, N., Abba, A.M., 2014. What do we know about armadillos? An analysis of fourcenturies of knowledge about agroup of South American mammals, with emphasis on their conservation. Mamm. Rev. 44, 69–80.

    Article  Google Scholar 

  • Tamburini, D.M., Briguera, C.V., 2012. Nuevo registro del cabasu, Cabassous chacoensis Wetzel, 1980 para la Provincia de Cordoba, Argentina. Edentata 13, 69–71.

    Article  Google Scholar 

  • Tomas, W.M., Camilo, A.R., Campos, Z., Chiaravalloti, R.M., Lacerda, A.C.R., Lima Borges, P.A., Medri, I.M., Nunes, A.P., Tomas, M.A., Goulart, C.S., Morzele, H.B., Lopes, V.A., Aragona, M., 2009. Ocorrência de tatu-de-rabo-mole, Cabassous unicinctus (Cingulata, Dasypodidade) no Pantanal, Brasil. Boletim de Pesquisa e Desenvolvimento 87, 1–19.

    Google Scholar 

  • Tortato, F.R., Althoff, S.L., 2009. Evaluationofabiotic factors on the activity period of crab-eating fox (Cerdocyon thous - Carnivora: Canidae). Biotemas 22, 147–152.

    Article  Google Scholar 

  • Ubaid, F.K., Mendonca, L.S., Maffei, F., 2010. Contribuição ao conhecimento da distribuição Geográfica do Tatu-Rabo-Mole-Grande Cabassous tatouayno Brazil: revisão, status e comentários sobre aespécie. Edentata 11, 22–28.

    Article  Google Scholar 

  • Vizcaíno, S.F., Milne, N., 2002. Structure and function in armadillo limbs (Mammalia Xenarthra: Dasypodidae). J. Zool. Lond. 257, 117–127.

    Article  Google Scholar 

  • Vizcaíno, S.F., Farina, R.A., Mazzetta, G., 1999. Ulnar dimensions and fossoriality in armadillos and other South American mammals. Acta Theriol. 44, 309–320.

    Article  Google Scholar 

  • Wetzel, R.M., 1980. Revision of the naked-tailed armadillos, genus Cabassous McMurtrie. Ann. Carnegie Mus. 49, 323–357.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Arnaud Leonard Jean Desbiez.

Electronic supplementary material

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Desbiez, A.L.J., Massocato, G.F., Kluyber, D. et al. Unraveling the cryptic life of the southern naked-tailed armadillo, Cabassous unicinctus squamicaudis (Lund, 1845), in a Neotropical wetland: Home range, activity pattern, burrow use and reproductive behaviour. Mamm Biol 91, 95–103 (2018). https://doi.org/10.1016/j.mambio.2018.02.006

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1016/j.mambio.2018.02.006

Keywords

Navigation