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生态因子的波动对多刺裸腹溞雄体发生的影响
引用本文:王金秋,张佳忆,黄博.生态因子的波动对多刺裸腹溞雄体发生的影响[J].应用生态学报,2000,11(1).
作者姓名:王金秋  张佳忆  黄博
作者单位:复旦大学环境和资源生物学系!上海200433(王金秋,张佳忆),华东师范大学生物学系!上海200062(黄博)
基金项目:国家自然科学基金!资助项目 (39770 579)
摘    要:采用克隆培养法,研究了几种主要生态因子的波动对多刺裸腹氵蚤雄体发生的影响和该氵蚤对上述生态因子波动的敏感程度.结果表明,无论是一次性剧烈刺激,还是持续性渐进刺激,该氵蚤均未能直接产生雄体,即氵蚤的孤雌生殖雌体不能直接转变为混交雌体(两性生殖雌体);在光照、温度、饵料密度、pH值持续性渐进波动时,该氵蚤种群的内禀增长率分别为0.7748、0.7481、0.6539和0.6310d-1ind-1,比对照组降低0.9%、4.0%、16.4%和19.3%,表明该氵蚤对饵料密度和pH值的波动较为敏感,对温度的敏感性次之

关 键 词:多刺裸腹溞  雄体发生  混交雌体  孤雌生殖雌体  生态因子

Influence of fluctuating ecological factors on male occurrence of Moina macrocopa
WANG Jinqiu,ZHANG Jiayi,HUANG Bo.Influence of fluctuating ecological factors on male occurrence of Moina macrocopa[J].Chinese Journal of Applied Ecology,2000,11(1).
Authors:WANG Jinqiu  ZHANG Jiayi  HUANG Bo
Abstract:Studies with clonal culture show that female M.macrocopa did not produce male progeny directly,or,in other words,the parthenogenetic(amictic) female could not transform into microtic(amphoteric) female,when suffered from one off acute or durative progressive stimulation.Under durative progressive stimulation by illumination,temperature,food density or pH ,the intrinsic rates of increase were 0.7748,0.7481,0.6539 and 0.6310 d -1 ind -1 ,0.9%,4.0%, 16.4 % and 19.3% less than the control,respectively,indicating that the animal was more sensitive to the fluctuation of food density and pH followed by temperature.
Keywords:Moina macrocopa    Male occurrence  Amphoteric female  Parthenogenetic female  Ecological factors  
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