摘要
根据对滇蛙（Rana pleuraden）和昭觉林蛙（R．chaochiaoensis）标本外部形态比较和野外观察结果，滇蛙和昭觉林蛙的雌雄性比大约在1：1之间，而它们的形态特征、栖境与习性、繁殖时间等均存在分化。昭觉林蛙更适应陆地生活。昆明地区的滇蛙和昭觉林蛙的繁殖策略不同，滇蛙的繁殖在3—7月，昭觉林蛙的在9—11月。昭觉林蛙选择在冬季繁殖，可以避开与其它蛙类的繁殖竞争，但其更深层次的生物学意义值得进一步探讨。
According to the results of external character comparisons and filed observation on Rana pleuraden and R. chaochiaoensis ,the male and female ratio of both frogs is about 1： 1. However, their external characters, inhabits and habits and breeding time differentiate obviously. R. chaochiaoensis is more adapted land life than R. pleuraden. The breeding strategy of both frogs in Kunming area is different. The breeding time of R. pleuraden is from March to July and R. chaochiaoensis is from September to November. Breeding time selected in inclement winter by R. chaochiaoensis could avoid competition with other frogs, but the biological meaning of deeper level is deserved to discuss further.
出处
《四川动物》
CSCD
北大核心
2007年第2期386-389,I0007,共5页
Sichuan Journal of Zoology
基金
国家重点基础研究发展计划(973计划)项目(No.2003CB415100)
云南省自然科学基金项目(2000C0054M)
Russell E.Train Education for Nature(EFN)Program(RJ17)
WWF项目资助
关键词
滇蛙
昭觉林蛙
形态特征
习性分化
Rana pleuraden
Rana chaochiaoensis
morphological character
habitat differentiation
