Reproductive Biology of a Blue-tail Skinks(Plestiodon)Population from a Temperate Forest,East-central Puebla,México  

作　　者：Manuel FERIA-ORTIZ Isaías hazarmabeth SALGADO-UGARTE 

机构地区：[1]Museo de Zoología,Facultad de Estudios Superiores Zaragoza,Universidad Nacional Autónoma de México,Iztapalapa,México [2]Laboratorio de Biometría y Biología Pesquera,Facultad de Estudios Superiores Zaragoza,Universidad Nacional Autónoma de México,Iztapalapa,México

出　　处：《Asian Herpetological Research》2024年第3期183-193,共11页亚洲两栖爬行动物研究（英文版）

基　　金：funded by the Biology Major of the Facultad de Estudios Superiores Zaragoza,Universidad Nacional Autónoma de México(UNAM);Scientific collecting permit issued by Semarnat(SGPA/DGVS 12013/12)。

摘　　要：We studied the cycles of reproduction and fat bodies of a blue-tailed skink population of an undescribed species of the Plestiodon brevirostris group.Sexual maturity is attained by females and males as they both reach about 59 mm of SVL.Vitellogenesis started in June-July,with ovulation occurring during late-October to mid-November,and parturition in mid-spring.Litter size varied from two to six,with a mean of 3.86±0.15 embryos in uterus,and showed a positive correlation with female body mass and SVL.During gestation,a significant increase in the average wet mass of embryos in uterus was evident.In comparison,there were no notable changes in the average dry mass.Juvenile growth data suggest that sexual maturity,both males and females,is reached at 16-17 months of age.Testicles and epididymides exhibited maximal weight during August-September.Testicular regression occurred in September.Mating apparently takes place from mid-summer to early fall.Lipids stored in female fat bodies are used for vitellogenesis and for nutrition during the winter months.In males,the stored lipids appear to be used in reproductive activities during the mating season.

关 键 词：growth litter size minimum size at maturity reproduction SCINCIDAE VIVIPARITY 

分 类 号：Q958[生物学—动物学]