2009-2010年,在黑龙江省的东北林蛙主要分布地区东南山地的亚布力地区、小兴安岭南部兴隆地区和小兴安岭北部乌伊岭地区对东北林蛙的生长与繁殖参数进行了研究.结果表明:黑龙江省3个地区各年龄的雌蛙繁殖度差异显著,随年龄增长繁殖度差异增加.雌蛙体质量的变化对繁殖产生显著影响:①亚布力、兴隆、乌伊岭3个地区雌蛙的繁殖度分别为(1.470±0.370)、(1.914±0.824)、(1.148±0.146)g/cm;②亚布力、兴隆、乌伊岭3个地区雌蛙的生长率分别为0.361±0.065、0.365±0.050、0.291±0.047;③亚布力、兴隆、乌伊岭3个地区林蛙生长与繁殖存在投资权衡,生长投入多的林蛙,繁殖能力下降,反之亦然.繁殖度可作为东北林蛙种质资源选择和优良品种培育重要参数之一.%Growth and reproduction parameters of Northeastern China wood frog (Rana dybowskii)in three forest regions, Wuyiling Region in the northern slope of the Lesser Khingan Mountains, Xinglong Region in the south slope of the Lesser Khingan Mountains and Yabuli Region in the Southeast of Heilongjiang Province during 2009-2010. Results showed that there were significant differences in reproduction degree of female wood frogs between different ages in all the three forest regions. The difference in reproduction degree increased with age. The change in body weight had a marked influence on the reproduction of wood frogs. The reproduction degrees of female wood frogs in Yabuli, Xinglong and Wuyiling were ( 1.470± 0.370), (1.914 ± 0. 824) and (1. 148＋0. 146)g/cm, respectively. The growth rates of the female wood frogs in the three regions were 0. 361 ±0. 065, 0. 365 ±0. 050 and 0. 291 ±0. 047, respectively. Budget tradeoff occurred between growth and reproduction. The reproduction capacity of those wood frogs obtained more investment in their growth declined sharply, and vice versa. The reproduction degree is one of the important parameters for idioplasm selection and varietal breeding of northeastern China wood frogs.
展开▼
