‘So there is a trade-off, where birds need to remain lean enough in order to “outrun” their predators during the day but also store enough fat to survive each night.’ Writing in the Royal Society journal Biology Letters, he added that the study shows that rather than ‘idly waiting’ to until the afternoon, the birds start searching out food in the morning.
“所以,鸟类也要遵循权衡法则,为了‘逃脱’被捕食动物吃掉,就要保持身子轻盈,还要在白天储存够过夜的脂肪。” 该研究报告发表在《英国皇家学会生物学快报》杂志上,他还补充说,据研究鸟儿们并不是“无所事事”地空等到下午,它们从早上就开始寻找食物。
‘Our results show these birds display very different patterns of food discovery in the morning and afternoon; very few new food sources were found during the afternoon, whereas nearly every new food source we put out during the morning was quickly discovered.
“我们的研究结果显示这些鸟类在早上和下午找食物的模式大不一样,在下午很少能找到新的食物源,而我们在早上放出去的食物几乎每一个新的食物源都很快就被发现了。”
‘It supports the idea of an ‘early bird’ strategy of scouting for food early on so they can return to feast a couple of hours before dusk in preparation for a long winter’s night.’
“这项研究为‘早起鸟’利用早上找食的策略性方法提供了实验依据,这样它们可以赶在黄昏前飞回来吃掉为度过漫长的冬夜做准备。”
【囧研究:早起的鸟儿有虫吃?可不一定!】相关文章:
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