| 陈绍勇,毕俊怀,何志超,李树然,刘睿,汪洋,赵雪.2015.鄂尔多斯丽斑麻蜥两性异形及繁殖输出.动物学杂志,50(2):214-220. |
| 鄂尔多斯丽斑麻蜥两性异形及繁殖输出 |
| Sexual Dimorphism and Reproductive output of Eremias argus from Ordos |
| 投稿时间：2014-07-15 修订日期：2015-02-09 |
| DOI：DOI: 10.13859/j.cjz.201502007 |
| 中文关键词: 丽斑麻蜥 两性异形 雌性繁殖 |
| 英文关键词:Eremias argus Sexual dimorphism Female reproduction |
| 基金项目:内蒙古自治区“草原英才”人才工程项目资助 |
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| 中文摘要: |
| 摘要：两性异形和雌性繁殖输出是丽斑麻蜥（Eremias argus）种群生活史研究的重要内容。本文研究了丽斑麻蜥成体两性异形及雌性繁殖输出，研究用的95条怀卵雌体和38条（18♂20♀）成体于2013年6、8月捕自内蒙古鄂尔多斯。被测形态特征有体重、头体长、头长、头高、头宽、上臂长、前臂长、腕指长、大腿长、小腿长、踝趾长、腋跨距和尾长；怀卵雌性个体在实验室条件下饲养至产卵，称量产后母体体重、卵重，记录窝卵数。丽斑麻蜥成体存在两性异形，表现为雄性个体的头部、四肢长及尾长都显著大于雌性，腋跨距显著小于雌性。本实验中最小的产卵雌体头体长为44.0 mm，产卵期在6月4日至7月15日，窝卵数2~5枚，平均2.9枚，窝卵数(P= 0.043)、窝卵重(P= 0.026)与头体长显著正相关，相对窝卵重(P= 0.001)与头体长呈负相关；窝卵数(P= 0.000)、卵均重(P= 0.000)与窝卵重显著正相关，窝卵数与卵均重不显著负相关(P= 0.200)。 |
| 英文摘要: |
| Abstract: Sexual dimorphism and reproductive output is an important part of life history of Eremias argus. In June and August 2013,We collected 95 pregnant females and 38(18♂20♀) adult E. argus from a population in Ordos of Inner Mongolia (northern China) in order to study sexual dimorphism and female reproductive output. The examined morphological traits included body mass, snout-vent length, head length，head height, head width, brachium length, ante-brachium length, wrist-finger length(the length of wrist to the tip of the forth finger), thigh length, shank length, ankle-toe length(the length of ankle to the tip of the forth toe), abdomen length and tail length; The pregnant females were feed in the terrarium until parturition, mother body mass and eggs were weighed, clutch size was recorded by us . The data of morphological traits were analyzed by the one-way ANOVA and ANCOVA, and then female reproductive traits were outcomes of the regressive analysis and the partial correlative analysis. The results showed that E. argus is a sexually dimorphic species, and it specifically presents: the head size, limb length and tail length are larger in males and abdomen length of females is larger (Table1). The smallest reproductive female in our sample was 44.0 mm snout-vent length (SVL). It occurred between 4 June and 15 July, when egg-laying came; and clutch size is varied from 2 to 5 eggs (mean = 2.9). Clutch size (P= 0.043) and clutch mass (P= 0.026) were positively related to female SVL, and relative clutch mass (P= 0.001) was negatively related to female SVL (Fig.1); clutch size (P= 0.000) and average egg weight (P= 0.000) were positively related to clutch mass, and clutch size was negatively related to average egg weight (P= 0.200).
Key words: Eremias argus；Sexual dimorphism；Female reproduction |
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