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Selected to survive and kill: Tityus serrulatus, the Brazilian yellow scorpion

Author

Listed:
  • Ricardo José Gonzaga Pimenta
  • Pedro Ferreira Pinto Brandão-Dias
  • Hortênsia Gomes Leal
  • Anderson Oliveira do Carmo
  • Bárbara Bruna Ribeiro de Oliveira-Mendes
  • Carlos Chávez-Olórtegui
  • Evanguedes Kalapothakis

Abstract

Annually, more than 1.2 million scorpion stings and more than 3,000 deaths occur worldwide. Tityus serrulatus Lutz and Mello, 1922 (Scorpiones, Buthidae) is the most medically relevant species in Brazil where it is spreading rapidly and causing over 90,000 cases of envenomation yearly. We monitored T. serrulatus longevity and ability to reproduce under conditions of food and/or water deprivation. We found that T. serrulatus is highly tolerant to food deprivation, with individuals enduring up to 400 days without food. On the other hand, access to water played a pivotal role in T. serrulatus survival. Food and water deprived scorpions showed weight reduction. Reproduction occurred throughout the year for food-deprived scorpions and controls, but not in the water-deprived groups. Remarkably, food-deprived animals were able to give birth after 209 days of starvation. Tityus serrulatus resistance to food and water deprivation is likely to be an additional factor underlying this species' geographic expansion and the difficulties encountered in controlling it.

Suggested Citation

  • Ricardo José Gonzaga Pimenta & Pedro Ferreira Pinto Brandão-Dias & Hortênsia Gomes Leal & Anderson Oliveira do Carmo & Bárbara Bruna Ribeiro de Oliveira-Mendes & Carlos Chávez-Olórtegui & Evanguedes K, 2019. "Selected to survive and kill: Tityus serrulatus, the Brazilian yellow scorpion," PLOS ONE, Public Library of Science, vol. 14(4), pages 1-10, April.
    • Handle: RePEc:plo:pone00:0214075
    DOI: 10.1371/journal.pone.0214075
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