饥饿时的年龄对萼花臂尾轮虫生活史对策的影响  

Effect of Starvation on Life History Strategy of Rotifer Brachionus Calyciflorus

作　　者：葛雅丽[1] 席贻龙[1] 

机构地区：[1]安徽师范大学生命科学学院,安徽芜湖241000

出　　处：《安徽师范大学学报（自然科学版）》2006年第2期159-162,共4页Journal of Anhui Normal University(Natural Science)

基　　金：国家自然科学基金(39870158);安徽省优秀青年基金(04043050);安徽省自然科学基金(00042416);安徽省"重要生物资源的保护和利用研究"重点实验室专项基金

摘　　要：应用单个体培养方法比较研究了饥饿时的年龄对萼花臂尾轮虫生活史对策的影响.结果表明饥饿时的年龄对轮虫的寿命、总生殖期历时和轮虫一生中的产卵量均有显著的影响,但是对轮虫一生所产后代和饥饿后所产后代中的混交雌体百分率无显著的影响.龄长为1天的轮虫进入饥饿状态后具有减少生殖量、延长存活时间的生活史对策.Effect of the age of the rotifer Brachionus calyciflorus at starvation on life history strategy was studied by individual culture. The results showed that the age of the rotifer at starvation had significant effects on lifespan, duration of the reproduction period and number of eggs produced in her life, but not on percentages of mictic females in the offspring produced during her life and starvation. The rotifer starved at the age of 1 day lengthened her lifespan and tolerance time to starvation by means of lowering her number of eggs produced in her lifetime.

关 键 词：萼花臂尾轮虫 饥饿 年龄 生活史对策 

分 类 号：Q959.181[生物学—动物学]