D.rufozonatum,E.carinata,E.taeniura, and Z.dhumnades increased reproductive output mainly through increasing clutch size,whereas P.korros through increasing both clutch size and egg size.

• 赤链蛇、王锦蛇、黑眉锦蛇和乌梢蛇雌体主要通过增加窝卵数增加繁殖输出，而灰鼠蛇雌体则主要通过增加窝卵数和卵大小增加繁殖输出。