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中国农学通报

中国农学通报 ›› 2013, Vol. 29 ›› Issue (7): 40-44.doi: 10.11924/j.issn.1000-6850.2012-3575

• 林学 园艺 园林 • 上一篇    下一篇

哈尔滨白条草蜥的两性异形和雌体繁殖

马涛 杜青霖 赵文阁 刘鹏   

  • 收稿日期:2012-11-02 修回日期:2012-12-04 出版日期:2013-03-05 发布日期:2013-03-05
  • 基金资助:
    黑龙江省教育厅科学技术研究项目“黑龙江省四种蜥蜴生活史特征的区域性适应机制的研究”(12511162)；哈尔滨师范大学科技发展预研项目“中国大陆草蜥属蜥蜴生活史表型的地理变异及系统发育研究”(11XYG-04)；国家自然科学基金项目“胎生蜥蜴生活史特征的地理变异和对寒冷气候适应性的研究”(31172079)；哈尔滨师范大学大学生创新基金项目(20100079)；哈尔滨师范大学科技创新团队和人才工程团队项目。

Sexual Dimorphism and Female Reproduction in White-striped Grass Lizard Takydromus wolteri (Lacertidae)

  • Received:2012-11-02 Revised:2012-12-04 Online:2013-03-05 Published:2013-03-05

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摘要： 为比较白条草蜥不同种群形态和繁殖特征的地理变异，于2011年和2012年的4—8月，通过野外捕捉、实验室饲养的方法，对黑龙江省哈尔滨地区的白条草蜥(Takydromus wolteri)种群的两性异形和繁殖输出进行研究。结果表明：白条草蜥的哈尔滨种群具有明显的两性异形现象，雌性和雄性平均体长分别为55.86 mm和52.13 mm，雌性的体长显著大于雄性(F1,62=15.337，P＜0.001)。去除体长的影响，雌性具有较大的腹长(F1,61=4.937，P＜0.05)，雄性具有较大的头部（头长：F1,61=103.56，P＜0.001；头宽：F1,61=68.524，P＜0.001）；较大的雌性具有较高的年生殖力(r=0.732，F1,18=20.821，P＜0.01)和年繁殖输出(r=0.681，F1,18= 15.579，P＜0.01)。与以往研究相比，白条草蜥的两性异形现象具有明显的地理变异，北方的哈尔滨种群两性的体长均明显大于南方的滁州种群两性的体长，符合贝格曼定律。

关键词: 光谱法, 光谱法

Abstract: In order to compare the geographic variation of the morphological and reproductive characteristics between different populations of Takydromus wolteri, this study was conducted between April and August, 2011 and 2012. Sexual size dimorphism (SSD) and female reproductive output of the Takydromus wolteri population from Harbin (Heilongjiang Province) were studied with the method of field capturing and laboratory feeding. Our results showed that the Harbin population of T. wolteri was in SSD and the female was significant larger than the male in snout-vent length (SVL) (F1,62=15.337, P＜0.001). The mean SVL of females was 55.86 mm while the mean SVL of males was 52.13 mm. Females had larger abdomen length (F1,61=4.937, P＜ 0.05) and males had larger heads (head length: F1,61=103.56, P＜0.001; head width: F1,61=68.524, P＜0.001) as the same SVL because larger females had a higher annual fecundity (r=0.732，F1,18=20.821，P＜0.01) and reproductive output (r=0.681，F1,18=15.579, P＜0.01). SSD was positively geographic variation in the T. wolteri of different population, and SVL of Harbin population in the north was obviously larger than Chuzhou population in the south in both sexes, which accorded with the Bergman’s rule.