Responses of West Greenland caribou to the approach of humans on foot
Responses of West Greenland caribou to the approach of humans on foot
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西格陵兰驯鹿对人类步行接近的反应
DOI：
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发表时间：
2000
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影响因子：
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通讯作者：
P. Aastrup
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文献类型：
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作者：
P. Aastrup
在两个驯鹿种群（Akia和Isortoq）在西格陵兰产犊期间，夏季和狩猎后，在1997-98年的方法，人类的反应进行了研究。对于每一组遇到的接近的人和驯鹿之间的距离在他们的第一个恐惧的迹象（“恐惧阈值距离”），之间的距离和驯鹿当他们开始移动（“飞行阈值距离”），和驯鹿运行的距离（“运行距离”）与激光测距仪测量。总体而言，驯鹿群体的惊吓阈值、逃跑阈值和奔跑距离都比单个个体长，表明驯鹿的警惕性更高。有犊牛的组比雌、雄组警惕性高，但雌、雄组间无差异。这种模式在Akia人群中最为明显。好奇心行为的频率表明，Akia驯鹿狩猎后的警惕性低于Isortoq驯鹿，而在其他季节没有位置差异。在Akia的驯鹿是最警惕的产犊期间，而在Isortoq人口最高的警惕性被发现狩猎后。狩猎似乎提高了伊索托克人的意识。它的结论是格陵兰驯鹿的飞行和恐惧反应是类似的其他驯鹿种群之间发现的，并应采取预防措施，以尽量减少干扰驯鹿产犊期间。
Responses to the approach of a human were studied in two caribou populations (Akia and Isortoq) in West Greenland during calving, summer and after the hunt in 1997–98. For each group encountered the distance between the approaching person and the caribou at their first sign of fright (“fright threshold distance”), the distance between the person and the caribou when they began to move away (“flight threshold distance”), and the distance the caribou ran (“run distance”) were measured with a laser range finder. Generally, groups of caribou had longer fright threshold, flight threshold and run distances, indicating more vigilance than single individuals. Groups with calves were more vigilant than female and male groups, while there was no difference between female and male groups. This pattern was most clear in the Akia population. The frequency of curiosity behaviour indicated that the Akia caribou were less vigilant than the Isortoq caribou after the hunting, while there was no locational difference during the other seasons. Caribou in Akia were most vigilant during calving, whereas in the Isortoq population the highest vigilance was found after hunting. Hunting seemed to have heightened awareness in the Isortoq population. It is concluded that flight and fright reactions of Greenland caribou are similar to those found among other caribou populations, and that precautions should be taken to minimize disturbing caribou during calving.