研究发现,蜂鸟利用类似冬眠状态在迁徙期间节能。 Hummingbirds use a hibernation-like state to conserve energy during migration, study finds.

新的研究揭示了蜂鸟如何在迁徙过程中利用一种称为 torpor 的类似冬眠的状态来保存能量。 New research reveals how hummingbirds use a hibernation-like state called torpor to conserve energy during migration. 科学家发现，Calliope 和红褐色蜂鸟至少需要 180 毫克脂肪才能开始新的一天，一旦达到 500 毫克，它们就会进入 torpor 以防止夜间脂肪流失。 Scientists found that Calliope and rufous hummingbirds need at least 180 milligrams of fat to start their day and enter torpor once they reach 500 milligrams to prevent overnight fat loss. 这项研究在《皇家学会议事录》B中发表,有助于了解鸟类的能源使用情况及其食物来源的变化如何影响其生存。 This study, published in Proceedings of The Royal Society B, helps understand the birds' energy use and how changes in their food sources might affect their survival.