| 云南扁萤幼虫捕食功能研究 |
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| 引用本文： | 吴健卓,郭琼,杨毓银,陈文龙.云南扁萤幼虫捕食功能研究[J].贵州大学学报(农业与生物科学版),2016(3):25-29. |
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| 作者姓名： | 吴健卓 郭琼 杨毓银 陈文龙 |
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| 作者单位： | 贵州省山地农业病虫害重点实验室，贵州 贵阳 550025; 贵州大学昆虫资源开发利用省级特色重点实验室，贵州 贵阳 550025 |
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| 基金项目： | 贵州省科技创新人才团队项目“贵州省节肢动物资源开发利用科技创新人才团队”(编号20144001)；贵州省烟草公司“贵州省蚜茧蜂复合防控烟蚜的研究与应用”[201372]。 |
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| 摘 要： | 为了解云南扁萤幼虫捕食效能,本文从温度、捕食者密度、猎物种类三个方面对云南扁萤幼虫的捕食功能进行了研究。结果表明:四龄幼虫在不同梯度温度下的捕食效果为35℃30℃25℃20℃;捕食率随着捕食者密度的增加而降低,当捕食者密度从1增加到5时捕食率下降相对较快,而当捕食者密度从5增加到7时,捕食率下降却较为平缓;云南扁萤幼虫对灰巴蜗牛具有正喜好性和负转换行为,对野蛞蝓表现为负喜好性和正转换行为。
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| 关 键 词： | 云南扁萤 捕食功能 温度 转换行为 |
Study on the predatory function of larva of Lampyrigera yunnana (Fairmaire) [ Coleoptera:Cantharidae] |
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| Abstract: | In order to understand the predacious function of the Lampyrigera yunnana larvae, this paper focuses on the influence of the temperature, the density of predators and the prey species on the predacious function of Lampyrigera yun-nana larvae. The results indicated that: from 20℃ to 35℃ , the predation efficiency raised with the ascent of temperature;but the predation efficiency decreased with the ascent of the predator density, the predation efficiency rapidly decreased when the predator density increased from 1 to 5, then it steadily decreased when the predator density increased from 5 to 7. The L. yunnana larvae showed positive preference and negative switching behavior to Bradybaena ravida; conversely, the L. yunnana larvae present negative preference and positive switching behavior to Agriolimax agrestis. |
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| Keywords: | Lampyrigera yunnana Predatory function Temperature Switching |
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