• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国政府科技报告 >Flight Behaviour of Males of Two Moths, Cadra Cautella and Pectinophora Gossypiella, in Homogeneous Clouds of Pheromone.
【24h】

Flight Behaviour of Males of Two Moths, Cadra Cautella and Pectinophora Gossypiella, in Homogeneous Clouds of Pheromone.

机译：信息素均匀云中两只飞蛾（Caura Cautella）和果蝇（pectinophora Gossypiella）雄性的飞行行为。

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Abstract. It is thought that orientation by male moths along pheromone plumes is guided by interception of filaments of pheromone along that plume and that clean air gaps are required for upwind progress. Given that several investigations have determined that cells sensitive to pheromone can resolve only low rates of encounter with pheromone filaments, generally less up to 10 pulses %%1, it would appear that individual filaments encountered at higher rates would not be resolved by the insects' sensory system and, therefore, the stimulus would be perceived as a non-flickering signal. Behaviorally, this has been thought to be expressed as the cessation of upwind progress. Previous studies with Cadra cautella (Walker) (Lepidoptera: Pyralidae) demonstrated that upwind flight by these males is not inhibited in rapidly pulsed plumes. Therefore, to determine whether a flickering signal is required for upwind progress by C. cautella, males were introduced to homogeneous clouds of pheromone in a wind tunnel and their behaviour recorded. For comparison, Pectinophora gossypiella (Saunders) (Lepidoptera: Gelechiidae), a species from a long-diverged lineage, was also used. Upwind progress by C. cautella is not impeded by the constant olfactory signal provided by a homogeneous cloud of pheromone, but this is not true for P. gossypiella. Further, although C. cautella directs its flight upwind in a homogeneous cloud, its heading is not always due upwind. Potential mechanisms are discussed. It is suggested that C. cautella does not require a flickering signal to progress upwind.

著录项

相似文献

  • 外文文献
  • 中文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号