Age structure and body size in a breeding population of Asiatic toad (Bufo gargarizans) in southwestern China

被引：0

作者：

Mi, Zhi Ping ^{[1
]}

机构：

[1] China West Normal Univ, Coll Life Sci, Nanchong 637009, Peoples R China

来源：

NORTH-WESTERN JOURNAL OF ZOOLOGY | 2015年 / 11卷 / 01期

基金：

中国国家自然科学基金;

关键词：

skeletochronology; age structure; body size; sexual size dimorphism; Bufio gargarizans; WESTERN CHINA; SKELETOCHRONOLOGICAL ESTIMATION; DIFFERENT ALTITUDES; NORTHEASTERN CHINA; RANA-NIGROMACULATA; AMOLOPS-MANTZORUM; SEXUAL-DIMORPHISM; TORRENT FROG; MATE CHOICE; WOOD FROG;

D O I：

暂无

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

Age structure of adult Bufo gargarizans in the breeding season was investigated by skeletochronology. The results showed that age at first reproduction was estimated to be 2 years in males and 3 years in females. The lifespan was at least 6 years for males and 7 years for females. On average, females were significantly older than males. In addition, age structures differed between the sexes. Female toads were significantly longer in body size and heavier in body mass than males. There was a significant positive correlation between age and both body size and body mass within each sexes. Age differences between the sexes caused the sexual size dimorphism in Bufo gargarizans.

引用

页码：178 / 182

页数：5

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