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Revista Peruana de Biología
versión On-line ISSN 1727-9933
Resumen
LASPIUR, Alejandro y ACOSTA, Juan Carlos. Sexual dimorphism of Liolaemus cuyanus Cei & Scolaro, 1980 (Iguania: Liolaemidae) in a population of San Juan, Argentina. Rev. peru biol. [online]. 2007, vol.14, n.1, pp.47-50. ISSN 1727-9933.
The study of sexual dimorphism can offer answers about the biological meaning that implies the morphological differentiation between males and females. However, these differences can be consistently explained knowing that exist selective pressures that influences on degree of sexual dimorphism in the species. For these reasons, we study the sexual dimorphism in a population of Liolaemus cuyanus of San Juan's Monte. We measure 12 morphometrics variables in 51 females and 43 males. Of these, eight were significantly bigger in the males: the snout-vent length, the width, the length and the high of head, the interocular distance, femur's length, tibio-fibula's length and the tail's length. The distance of separation between limbs was significant bigger in the females. It is explained and compare the obtained results with dimorphisms found in other species of the genus.
Palabras clave : Sexual dimorphism; Liolaemus cuyanus; Monte; San Juan; Argentina.