Scholarlink

<p>Behavioral responses of the cabbage looper, <i>Trichoplusia ni</i> (Hübner) (Lepidoptera: Noctuidae), to ultrasonic echolocation calls of insectivorous bats remain unclear for nocturnal predator–prey interactions. This study addressed ultrasonic pulse temporal characteristics that elicit escape responses from <i>T. ni</i> by subjecting tethered, flying moths of both sexes and host-searching mated females in particular to controlled ultrasound stimulation. By comparing moths flight response to bat call simulations with pulse-repetition rates (PRRs) ranging from 1 to 160 pulse/s, we show that ultrasonic pulses broadcast at 20 pulse/s (PRR20) are more effective in triggering <i>T. ni</i> evasive flight behaviors, especially for males which more frequently show flight cessation than females under tethered flight conditions. Focusing on mated females, the offspring (larvae) of which damage crops, ultrasonic pulses with PRR20 significantly reduced moth orientation towards host plants and decreased egg-laying frequency near them. These findings, provided by a quantitative assessment of <i>T. ni</i> response towards bat-like ultrasounds, demonstrates PRR20 as a major temporal parameter for ultrasonic pulse-induced evasive behavior in this species.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Analyses of bat-avoidance responses of cabbage looper moth with a focus on ultrasonic pulse repetition rates

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年8月17日

查看全文
  • Ming Siang Lem,
  • Ryo Nakano,
  • Masashi Nomura

摘要

Behavioral responses of the cabbage looper, Trichoplusia ni (Hübner) (Lepidoptera: Noctuidae), to ultrasonic echolocation calls of insectivorous bats remain unclear for nocturnal predator–prey interactions. This study addressed ultrasonic pulse temporal characteristics that elicit escape responses from T. ni by subjecting tethered, flying moths of both sexes and host-searching mated females in particular to controlled ultrasound stimulation. By comparing moths flight response to bat call simulations with pulse-repetition rates (PRRs) ranging from 1 to 160 pulse/s, we show that ultrasonic pulses broadcast at 20 pulse/s (PRR20) are more effective in triggering T. ni evasive flight behaviors, especially for males which more frequently show flight cessation than females under tethered flight conditions. Focusing on mated females, the offspring (larvae) of which damage crops, ultrasonic pulses with PRR20 significantly reduced moth orientation towards host plants and decreased egg-laying frequency near them. These findings, provided by a quantitative assessment of T. ni response towards bat-like ultrasounds, demonstrates PRR20 as a major temporal parameter for ultrasonic pulse-induced evasive behavior in this species.