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Red tegu

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(Redirected from Tupinambis rufescens) Species of lizard
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Red tegu
In Argentina
Conservation status

Least Concern  (IUCN 3.1)
CITES Appendix II (CITES)
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Family: Teiidae
Genus: Salvator
Species: S. rufescens
Binomial name
Salvator rufescens
(Günther, 1871)
Synonyms
  • Teius rufescens Günther, 1871
  • Tupinambis rufescens Boulenger, 1885

The red tegu (Salvator rufescens) is a lizard native to western Argentina, Bolivia and Paraguay. It is sold in the pet trade around the world due to its ease of care and relatively docile nature.

Description

As hatchlings, most red tegus display little, if any, red coloration. The red tegu grows rapidly, typically reaching maturity in two to three years. It is not uncommon for well-fed juveniles to experience growth spurts of more than an inch per week. They are typically brownish-green with black strips across their width and several broken white stripes down their length. They develop red coloration as they mature; males are usually brighter than females. Adult females can reach 91 cm (just under 3 ft) in length. Males are significantly larger, reaching up to 140 cm (4.5 ft) and developing large jowls.

  • Female (center) and male (right) resting Female (center) and male (right) resting

Behavior

Skull

In the wild, red tegus are diurnal and terrestrial. Living in a temperate climate in Argentina, they brumate in the winter, burying themselves and remaining largely dormant during the coldest periods, in some areas for up to seven months. They also burrow as a matter of habit at other times of year.

In the ecotone between the arid Chaco and the Espinal of central Argentina, they are known to naturally hybridise with the Argentine black and white tegu (Salvator merianae) with a stable hybrid zone.

Diet

The red tegu is a very opportunistic feeder. Wild specimens will eat a variety of plant and animal matter: fruits, vegetables, insects, rodents, birds, and fish. Red tegus raised in captivity will often be more picky eaters, especially as juveniles, and may prefer a diet of mostly meat.

Being omnivores, red tegus will eat a diverse range of foods, with a focus on animal protein, including small to medium rodents, birds, many insects, and any dead animal they can scavenge.

Captivity

These reptiles are common in the exotic pet trade due to their mostly docile nature. Red tegus in captivity can be known to live up to 15–20 years. They can be trained with clickers and are known for following their owners around the house "like a dog". MacGyver the Lizard is a famous example of one such red tegu.

References

  1. Cacciali, P., Carreira, S., Fitzgerald, L., Kacoliris, F., Montero, R., Pelegrin, N., Scott, N., Aparicio, J., Moravec, J. & Gonzales, L. 2021. Salvator rufescens. The IUCN Red List of Threatened Species 2021: e.T44579822A44579826. https://dx.doi.org/10.2305/IUCN.UK.2021-2.RLTS.T44579822A44579826.en. Accessed on 31 August 2023.
  2. "Appendices | CITES". cites.org. Retrieved 2022-01-14.
  3. Salvator rufescens at the Reptarium.cz Reptile Database. Accessed 2018-10-25.
  4. Bartlett, R., & Bartlett, P. (1996). Monitors, Tegus, and Related Lizards. Barron’s Educational Series.
  5. Pianka, E. R. (2006). Lizards: Windows to the Evolution of Diversity. University of California Press.
  6. ^ Cabaña, Imanol; Chiaraviglio, Margarita; Di Cola, Valeria; Guisan, Antoine; Broennimann, Olivier; Gardenal, Cristina N.; Rivera, Paula C. (2020). "Hybridization and hybrid zone stability between two lizards explained by population genetics and niche quantification". Zoological Journal of the Linnean Society. 190 (2): 757–769. doi:10.1093/zoolinnean/zlaa018. hdl:11336/141610.
Taxon identifiers
Salvator rufescens
Tupinambis rufescens
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