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蝙蝠活动与在比利尼斯山脉的迁徙昆虫生物流相关
Will L Hawkes1,2, Kelsey Davies1, Scarlett Weston1
1Centre for Ecology and Conservation, University of Exeter, Cornwall Campus, Penryn, UK.
Royal Society open science
|August 18, 2023
概括
高海拔的比利尼斯山脉昆虫迁徙是蝙蝠的重要食物来源. 夜间活动的,包括棉花虫,吸引了像Nyctalus spp.这样的寄居和迁徙蝙蝠物种的高活动.
科学领域:
- 生态生态学 生态生态学
- 动物学 动物学
- 昆虫学 昆虫学是一门学科.
背景情况:
- 比利尼斯山脉的高海拔山口是来自北欧的昆虫的关键迁徙热点.
- 以前的研究主要集中在该地区的白天迁徙昆虫.
- 夜间迁徙昆虫的聚集和蝙蝠的利用仍然没有得到充分的研究.
研究的目的:
- 为了研究Pyrenees山脉昆虫迁徙的夜间组成部分.
- 为了确定迁徙昆虫是否作为蝙蝠物种的食物来源.
- 了解夜间迁徙昆虫和蝙蝠之间的相互作用.
主要方法:
- 在高海拔的比利尼斯山脉山口进行了三个季节的捕食昆虫.
- 使用声学蝙蝠探测器来监测蝙蝠活动.
- 确定了昆虫物种和量化蝙蝠活动模式.
主要成果:
- 捕获了66种昆虫物种,其中夜虫占90%,其中包括害虫Helicoverpa armigera.
- 观察到Nyctalus spp. 的高活性. 和Tadarida teniotis蝙蝠与的到来同步.
- 有证据表明,迁徙昆虫是居民和迁徙蝙蝠的关键食物来源.
结论:
- 秋季期间,夜间迁徙的昆虫在皮利尼斯山脉繁多.
- 这种昆虫迁徙支持居民和迁徙蝙蝠种群的能源储备.
- 蝙蝠采用飞食策略或中途停留,而居民蝙蝠可能会将资源用于冬眠脂肪储存.
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