| ,2013,二疣犀甲对不同寄主茎干的产卵选择[J].环境昆虫学报,35(1):13-17 |
| 二疣犀甲对不同寄主茎干的产卵选择 |
| Oviposition selection of Oryctes rhinoceros among different host stems |
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| DOI： |
| 中文关键词: 二疣犀甲 产卵选择 寄主茎干 产卵基质 |
| 英文关键词:Oryctes rhinoceros oviposition selection rotten material of host stem substrate for laying eggs |
| 基金项目:海南省重点科技计划项目（ZDXM20110014）；公益性行业（农业）科研专项项目（200903026） |
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| 中文摘要: |
| 在室内采用选择行为方法，研究了二疣犀甲Oryctes rhinoceros(Linnaeus)对不同寄主茎干的产卵选择行为。结果表明，二疣犀甲对不同腐烂状态椰子茎干的产卵选择性具有明显差异，其中以半腐烂状态的茎干对二疣犀甲的产卵引诱效果最强，单雌产卵数和孵化率分别为27.06粒和87.41%，其次为完全腐烂的茎干，而健康茎干的引诱效果最差。5种不同棕榈植物的半腐烂茎干对二疣犀甲的产卵诱集结果表明，二疣犀甲在椰子和油棕茎干上的产卵量最高且差异不显著。而在不同椰子品种半腐烂茎干之间，二疣犀甲优先选择香水椰子和海南高种椰子茎干腐烂物产卵，单雌产卵量分别为28.14粒和24.25粒。在不同原因造成的死亡椰子茎干中，二疣犀甲优先选择台风折断死亡的茎干产卵，其次为染虫死亡茎干，最后为感病死亡茎干。少量的二疣犀甲幼虫粪便能诱集成虫在寄主上产卵，在粪便比例为25%时，对二疣犀甲成虫产卵诱集效果最强，单雌产卵量最高，达到34.67粒，之后随着粪便在产卵基质中比例的增加，二疣犀甲的产卵行为逐渐受到抑制，产卵量减少。 |
| 英文摘要: |
| Oviposition selection of Oryctes rhinoceros among different host stem was studied in laboratory.The results showed that O.rhinoceros had the highest oviposition preference to half-rotting stems among coconut stem with different rotting state(fecundity per female and hatching rate were 27.06 and 87.41%), followed by fully-rotting and normal stem; Among 5 different palm stems, O.rhinoceros selected coconut and oil palm stems firstly with non-significantly difference; Among different variety coconut stems, Aromatica green dwarf and coconut Hainan tall were more attractive than others, and fecundity per female were 28.14 and 24.25.O.rhinocerosshowed best oviposition preference and hatchability in stem destroyed by typhoon followed pest destroyed, and stems destroyed by disease showed poorest attractive ability among coconut stem with different death cause; Small amount of larvae dung may attract the oviposition behaviors of O.rhinoceros, and the fecundity per female raised to 34.67 at the ratio of dung was 25%, then the oviposition behavior was restrain along with the increase of dung ratio in ovipositional substrates |
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