Relationships between body growth indices and environmental factors on the reproductive cycle of the Gymnodactylus geckoides Spix, 1825 (Squamata, Gymnophthalmidae) in Northeast Brazil


  • Leonardo P. C. Oitaven
  • Beatriz B. M. R. Silva
  • Simone A. Gavilan
  • Eduardo J. R. Dias
  • Marcio F. Chaves
  • Luis M. Lobo
  • Juan S. M. Gonzalez
  • Daniel O. Mesquita
  • Geraldo J. B. de Moura

Palabras clave:

Brood, Cell Development, Endogenous Factors, Energy Cycle, Exogenous Factors, Gecko, Reproductive Tasks


In this study, we analyzed the energy and reproductive cycles of female and male Gymnodactylus geckoides in the Caatinga area of northeast Brazil. We investigated whether these proxies of body condition, such as reproductive cells maturation and cellular structures changed in response to variation in abiotic and biotic factors (i.e., humidity, temperature, seasonality, body temperature, growing rate and gonad volume), using individuals stored under scientific conditions collected between September 2018 and December 2021. The condition factor showed an isometric growth pattern in the population studied. Meanwhile, the lipid, hepatic, and gonad factors correlated with body growth and showed monthly and seasonal variations, as well as reproductive cell maturation and cellular structure morphology. The cycles displayed constant replacement of energy reserves and mature reproductive cells, indicating constant and acyclic reproduction in G. geckoides. Energy reserves appear to be used for many reproductive activities, including meeting, gestation, and egg laying that occur at different frequencies during different periods in the dry and rainy seasons. Therefore, the reproductive cycle is likely to be strongly controlled by biotic factors, which are modeled using abiotic factors and environmental conditions (environmental patterns which proportionate greater resource availability). Our study is the first to investigate energy cycles and reproductive strategies in G. geckoides. It has shown that this species stores greater amounts of energy during the rainy season and then depletes these reserves during the dry period, since the rainy season correspond to the increase in energy consumption, mainly because of gestation and egg laying.


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Cómo citar

Oitaven, L. P. C., Silva, B. B. M. R., Gavilan, S. A., Dias, E. J. R., Chaves, M. F., Lobo, L. M., Gonzalez, J. S. M., Mesquita, D. O., & de Moura, G. J. B. (2023). Relationships between body growth indices and environmental factors on the reproductive cycle of the Gymnodactylus geckoides Spix, 1825 (Squamata, Gymnophthalmidae) in Northeast Brazil. Cuadernos De Herpetología, 37(1). Recuperado a partir de