Stenocercus doellojuradoi: Clutch size

Abstract

Stenocercus doellojuradoi (Tropiduridae) is a Chaco endemic species of Argentina, and regarded as a vulnerable species associated with Chaco forests (Pelegrin et al. 2006. Herpetozoa 19(1/2):85–86). The Chaco ecoregion is a vast woodland that covers more than 1.2 million km2 , including portions of Argentina, Bolivia, and Paraguay, ranging from tropical (18ºS) to subtropical (31ºS) latitudes. The southernmost portion of the Chaco (Dry Chaco) is characterized by having lower temperatures and rainfall (Bucher 1982. Ecological Studies 42:48–79). Although S. doellojuradoi is a common species within its limited distribution, its natural story has been poorly studied, and there is no available information on its reproductive biology. In the context of an ecological study on lizard assemblages in the Dry Chaco of Córdoba, Argentina (30.37ºS, 65.43°W), we recorded females with oviductal eggs in November, January, and February; one female (SVL = 77 mm, 18 g) from November was found to be carrying six eggs (mean length ± SD = 13.33 ± 1.37 mm). This is the fi rst report of reproductive data for this species.