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如何数鸟鸟鸟鸟鸟?科学家想到的这个方法绝了
每年的秋季和春季,气流在高空汇聚成看不见的高速公路,成千上万的候鸟在此踏上迁徙的旅程。当观鸟爱好者们纷纷背起相机和望远镜往外跑,有一群科学家却忙着“云观鸟”,在雷达数据中寻找候鸟的踪迹。用雷达探测飞行动物的研究属于一个前沿领域,称为空中生态学(aer ...
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