Sexual Size Dimorphism of Lacertid Lizards from Korea

다국어 초록 (Multilingual Abstract)

This study was conducted to find the sexual size dimorphism(SSD) in morphometric characters of three species , Eremias argus, Takydromus amurensis and T. wolteri in lacertid lizard from Korea. Six external traits, snout‐vent length, tail length, head length, head width, forelimb length and hind-limb length were focused to compare two sexes among the each three lizards. Student's t‐test was used to compare the adult SVL between the sexes for each species. For the other parts of the body, a one‐way analysis of covariance(ANCOVA) with SVL as the covariate was used. In all these species, males have longer tail and head than females like general lacertid lizard. In addition, male E. arugus have broader head and longer forelimbs and hind-limbs than conspecific females. Likewise, male T. wolteri have broader head than females. In the three lacertid lizards from Korea, snout‐vent length did not significantly differ between the sexes. To understand the causes for SSD in SVL, ecological information, such as the presence/absence of male-male combat and the correlation between the SVL of female and litter size, is required. Therefore, further ecological study on the three species of lacertid lizard from Korea will make it possible to explain the reason SSD is not found in SVL.

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