| 周亦红*;赵志模;邓新平.美洲斑潜蝇和南美斑潜蝇同龄幼虫种内竞争的研究[J].植物保护,2000,26(6):1-3. |
| 美洲斑潜蝇和南美斑潜蝇同龄幼虫种内竞争的研究 |
| Intraspecific competition among lavae of Liriomyza sativae Blanchard and L. huidobrensis (Blanchard) |
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| DOI： |
| 中文关键词: 美洲斑潜蝇 南美斑潜蝇 幼虫 种内竞争 |
| 英文关键词:Liriomyza sativae Liriomyza huidobrensis larval intraspecific competition |
| 基金项目: |
| 周亦红*;赵志模;邓新平 |
| 西南农业大学植保系,重庆400716;*南京农业大学植保系99博士生;210095 |
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| 中文摘要: |
| 在相同条件下研究了美洲斑潜蝇和南美斑潜蝇实验种群同龄幼虫的种内竞争。结果表明 ,随着 1龄幼虫密度的增加 ,2种斑潜蝇幼虫和蛹的存活率及平均蛹重均逐渐下降 ,但密度对成虫性比无明显影响 ;2种斑潜蝇蛹存活率及雌性比随平均蛹重的增加而增大 ,但最高级别的蛹存活率反而有所下降。比较分析表明 ,在本文实验条件下 ,美洲斑潜蝇幼虫抗拥挤能力较南美斑潜蝇更强 |
| 英文摘要: |
| Intraspecific competition among lavae of Liriomyza sativae Blanchard and L. huidobrensis (Blanchard) were studied. The results showed that the survival percentage of larvae and pupae, and average pupal weight of these two species of leafminers declined as the density of first instar larvae increased, but its density did not significantly affect the sex ratio of adult. Pupal survivorship and female sex ratio rose with the increase of average pupal weight, but the survivorship reduced at the peak of pupal weight. Comparative studies indicated that L. sativae could tolerate denser crowd than L. huidobrensis under this experimental conditions. |
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