earticle

영어

To understand oviposition and egg hatching of the Mongolian racerunner (Eremias argus) in the laboratory and field, we allowed 21 female lizards to lay their eggs, collected eggs, measured mass, length, and width of the eggs, incubated the eggs, and measured mass and snout-vent length (SVL) of hatchlings. Females laid about 3 eggs per clutch over two clutches in a breeding season between late May and early July, 2010, and buried the eggs in the sand at approximately 15 – 20 cm depth. Mass, length and width of the eggs from the first and second clutches in the laboratory were not different. The relative clutch mass (total egg mass/gravid female mass) of the first clutch in the laboratory was smaller as 0.26 than 0.39 of the second clutch in the field. The incubation period of eggs in a common used incubator was shorter as 38 days than 50 days of a hand-made incubator although the former showed about 5% hatching failure. Mass and SVL of hatchlings were not different depending on the incubator types, common used and hand-made incubators, and on the first and second clutches in the laboratory.