História de vida de Tropidurus hispidus e Tropidurus semitaeniatus (Squamata, Tropiduridae) em uma área de caatinga na Região de Patos, Paraíba.

Abstract

The life history of an organism comprises during its life cycle, the pattern of growth, differentiation, storage and playback. In this work we studied habitat use, activity period, morphology, thermal ecology, behavioral repertoire and living area of two species of lizards Tropidurus hispidus and T. semitaeniatus in Patos, Paraíba, Brazil. The two species of tropidurídeos showed activity peaks at the same times, but with plenty differentiated, where T. semitaeniatus presented with greater number of sightings. The Kolmogorov-Smirnov test showed significant results for differences in activity patterns of T. hispidus and T. semitaeniatus (GL = 2, Dmax = 0.2192, p <0.0001), however both species were in most sightings stopped. Regarding the use of habitat, the principal microhabitat used when first seen for both species was rocky surface. The average body temperature of T. semitaeniatus was 35.02 ° C ± 1.66, n = 44e of the temperature T. hispidus was 34.53 ± 2.29 ° C, n = 23. 141 sightings were recorded (91 to 149 for T. hispidus and T. semitaeniatus), so that all observations were made in the dry and sunny days. These observations totaled 39 behaviors described, performed by both species and categorized behaviors Trail, Thermoregulation, Exhibitionism, territorialism, Foraging and Reproductive. Males of both species were larger and heavier than females. The average home range of T. hispidus was 22.4 ± 15.85m ², and the average overall displacement was 26.75 ± 19.19m. The size difference between the sexes living area of T. hispidus can be explained by sexual size dimorphism present in this species and the need for adult males establish larger areas to include females in their areas during the breeding season.