A TECHNIQUE FOR RECORDING MIGRATORY ORIENTATION OF CAPTIVE BIRDS
A TECHNIQUE FOR RECORDING MIGRATORY ORIENTATION OF CAPTIVE BIRDS
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作者：
EMLEN, ST;EMLEN, JT
本文描述了一种简单、廉价的技术，用于获取圈养移民的定向祖gunruhe数据。测试鸟被放在小的、宽口的白色吸墨纸漏斗中，这些吸墨纸安装在潮湿的墨垫上，上面盖上纱罩。鸟儿每次跳跃时，都会在倾斜的吸墨纸上沿着跳跃方向留下墨迹，然后再滑回垫子上。然后可以将吸墨纸上的足迹记录转换为适合统计评估的数值项。
A simple, inexpensive technique is described for obtaining data on oriented Zugunruhe in captive migrants. Test birds are placed in small, wide-mouthed funnels of white blotting paper mounted over moist ink pads and topped with screen covers. Each time a bird hops, it leaves inked footprints on the sloping blotting paper in the direction of the hop before sliding back down to the pad. The footprint records on the blotters then can be translated into numerical terms suitable for statistical evaluation.