南滑蜥繁殖行为和繁殖策略的研究

南滑蜥Scincella reevesii 系温暖气候区卵胎生蜥蜴,每年繁殖1次,繁殖季节为5月下旬到6月上旬.平均每只繁殖雌蜥产仔6(3～9)条.雌蜥分娩持续时间为30～ 60 min,仔蜥在产出时包被卵膜.南滑蜥雌体采取高投入的繁殖策略,平均繁殖投入为0.359,平均窝仔投人为0.247.相关性回归分析表明,窝仔数、窝仔重与雌蜥体长呈正相关关系,幼仔重与雌蜥体长不相关；窝仔数与雌蜥的繁殖投入及窝仔投入均成正相关,与分娩时的能耗投入不相关,与幼仔投入成显著负相关.

Research on Reproductive Behavior and Strategy of Scincella reevesii

Reeves’ smooth skink(Scincella reevesii),which is oviviparous lizard,reproduces once a year beginning from the last of May to the early of June.The average laying number is 6(3~9) per female.The parturition lasts for 30 to 60 min and the baby lizard’s oolemma is not broken after being born.The reproductive strategy taken by the female is to invest much energy,and the average value of reproductive investment is 0.359,while the average value of litter investment is 0.247.The correlative regression analysis shows that litter size,litter mass are positively correlated with SVL of females,however neonatal mass is not correlated with SVL of female.Litter size is also positively correlated with reproductive investment and litter investment,but not notably correlated with energy expenditure in parturition.Moreover,there is negative correlation between litter size and neonatal investment.