摘要
为明确桑天牛寄主选择行为策略及不同环境条件对其繁殖行为的影响,在室内选择和非选择性条件下测试了桑天牛对不同补充营养材料的行为响应,在人工模拟环境条件下观察桑天牛交配行为和产卵量的变化。结果表明,桑天牛在选择性条件下取食量以构树最多,单头雌虫总产卵量以杨树最高,卵孵化率在不同补充营养材料之间无显著差异;非选择性条件下取食量以桑树最多,而构树上着卵量达最高,桑树和杨树次之,对乌桕和苦楝的取食和产卵选择极少。卵孵化率在构树、桑树和杨树之间无显著差异。以桑树和构树为补充营养材料的桑天牛成虫寿命最长。桑天牛成虫交配行为节律表现出19:00-24:00及08:00左右是其交配行为高峰期。在人工模拟室外环境条件下,确定了桑天牛交配和产卵行为活性最佳环境条件为温度36℃,相对湿度40%~50%,光照时间8 h。
To clear the host selection strategies for Apriona germari and influence of environmental conditions on their reproductive behavior,the behavioral responses to different supplementary nutrition materials were tested indoor under selective and nonselective conditions,and changes of mating behavior and oviposition were observed in the artificial environmental conditions.The results revealed that the feeding area on Broussonetia papyrifera was the maximum by A.germari under selective conditions,the total oviposition for single female was the highest on poplars,and no significant difference was showed on the hatching rate of eggs among different supplementary nutrition materials.However,the feeding area on mulberry was the most under non-selective conditions,but eggs producted on Broussonetia papyrifera reached the highest,and those on mulberries and poplars was secondary,while the feeding and oviposition on Sapium sebiferum and Melia azedarach were rare.There was no obvious difference at the egg hatching rates among Broussonetia papyrifera,mulberries and poplars.The longevity of A.germari adults feeding on mulberries and Broussonetia papyrifera was the longest.The activity rhythms of A.germari adults showed that the peak of their mating behaviors occurred at 7: 00-9: 00 pm and 8: 00am or so.In the artificial simulation of outdoor environmental conditions,the optimal environmental conditions for mating and oviposition behavior of A.germari was the temperature of 36degrees,relative humidity of 40% ~ 50% and illumination time of 8h.
出处
《生物灾害科学》
2012年第1期78-84,共7页
Biological Disaster Science
基金
国家自然科学基金项目(31060116)
江西省科技支撑计划项目(2010BNA06500)
江西省教育厅青年科学基金项目(GJJ10105)
关键词
桑天牛
补充营养
环境条件
行为反应
Apriona germari
supplementary nutrition,environmental conditions
behavioral response
