Gong Lixin, Geng Yang, Wang Zhiqiang, Lin Aiqing, Wu Huan, Feng Lei, Huang Zhenglanyi, Wu Hui, Feng Jiang, Jiang Tinglei
Jilin Provincial Key Laboratory of Animal Resource Conservation and Utilization, Northeast Normal University, Changchun 130117, China.
Key Laboratory of Vegetation Ecology of Education Ministry, Institute of Grassland Science, Northeast Normal University, Changchun 130024, China.
iScience. 2022 Aug 17;25(9):104973. doi: 10.1016/j.isci.2022.104973. eCollection 2022 Sep 16.
Foraging on nocturnally migrating birds is one of the most challenging foraging tasks in the animal kingdom. Only three bat species (e.g., ) known to date can prey on migratory birds. However, how these bats have exploited this challenging dietary niche remains unknown. Here, we demonstrate that . hunts at the altitude of migrating birds during the bird migration season. The foraging . exhibited high flight altitudes (up to 4945 m above sea level) and high flight speeds (up to 143.7 km h). . in flight can actively prey on birds in the night sky via echolocation cues. Genes associated with DNA damage repair, hypoxia adaptation, biting and mastication, and digestion and metabolism have evolved to adapt to this species' avivorous habits. Our results suggest that the evolution of behavioral innovation and genomic novelty are associated with the exploitation of challenging dietary opportunities.
捕食夜间迁徙的鸟类是动物王国中最具挑战性的觅食任务之一。迄今为止，已知只有三种蝙蝠（例如）能够捕食候鸟。然而，这些蝙蝠如何利用这一具有挑战性的饮食生态位仍不为人知。在这里，我们证明，在鸟类迁徙季节， 在候鸟飞行的高度进行捕食。这种觅食的 表现出很高的飞行高度（海拔高达4945米）和飞行速度（高达每小时143.7公里）。飞行中的 可以通过回声定位线索在夜空中主动捕食鸟类。与DNA损伤修复、低氧适应、撕咬和咀嚼以及消化和新陈代谢相关的基因已经进化，以适应该物种的食鸟习性。我们的结果表明，行为创新和基因组新奇性的进化与利用具有挑战性的饮食机会有关。
