科研之友
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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.
- 出版日期2015-6
- 单位西华师范大学
