ARPHA Conference Abstracts : Conference Abstract
Conference Abstract
Population dynamics of two troglobitic Troglorhopalurus (Scorpiones: Buthidae) scorpions from Brazil
expand article infoJonas Gallão, Maria Elina Bichuette§
‡ Universidade de São Paulo, Ribeirão Preto, Brazil
§ Universidade Federal de São Carlos, São Carlos, Brazil
Open Access


Population dynamics studies raise relevant data to understanding ecological aspects and natural history of species as well as better conservation strategies. Using two scorpions species, Troglorhopalurus translucidus Lourenço, Baptista & Giupponi, 2004 and Troglorhopalurus lacrau (Lourenço & Pinto-da-Rocha, 1997) from Chapada Diamantina, Bahia state, Brazil, we estimate populacional parameters through mark and recapture methodology, and Jolly-Seber estimator. In addition, data on both species as sexual ratio, reproductive biology, growth, longevity, feeding habitats, and seasonality were analyzed in the caves and afterwards compared to other scorpion species as well as other arachnids. We captured and marked 82 specimens of T. translucidus and 65 specimens of T. lacrau. Population estimates were 361 ± 199 individuals to T. translucidus and 333 ± 252 to T. lacrau. Population estimates were considered high for the troglobitic scorpions when compared to subterranean arachnids or even with epigean species of scorpions. Both troglobitic scorpions featured remarkable differences in relation to epigean scorpions as higher longevity, longer reproductive period, slower growth. Besides T. translucidus showed marked seasonality with populational variations in rainy seasons in contrast to T. lacrau with populational stability.  Suppl. material 1

Presenting author

Maria Elina Bichuette

Presented at

24th International Conference on Subterranean Biology

Funding program

Fundação de Amparo À Pesquisa do Estado de São Paulo (FAPESP); Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Hosting institution

Universidade de Aveiro, Aveiro - Portugal

Supplementary material

Suppl. material 1: Population dynamics of two troglobitic Troglorhopalurus Lourenço Baptista & Giupponi, 2004 (Scorpiones: Buthidae) scorpions from Brazil 
Authors:  Jonas E. Gallão, Maria E. Bichuette
Data type:  poster