Collective behaviour of wild Asian elephants in risky situations: how do social groups cross roads?
Collective behaviour of wild Asian elephants in risky situations: how do social groups cross roads?
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DOI：
10.1163/1568539x-00003465
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发表时间：
2017-01-01
期刊：
影响因子：
1.3
通讯作者：
Sukumar, Raman
中科院分区：
文献类型：
--
作者：
Mizuno, Kaori;Sharma, Nachiketha;Sukumar, Raman
在群居动物中，一些成员可能会通过遵循其他成员的决定而受益。在印度南部的穆杜玛莱国家公园，自由活动的野生亚洲象必须经常过马路，而且会被车辆打扰。我们评估了道路和交通特征的测量是否可以作为风险指标，并比较了不同年龄段在横穿马路事件期间的行为。更多的人在更宽的道路上表现出兴奋的行为。与幼象相比，更多的成年大象最先进入这条路，这被认为是最危险的位置。不成熟的人在路上往往走在其他人的前面，这表明对于不成熟的人来说，在十字路口开始时跟随成年人比在整个十字路口跟随更重要。这些发现可能表明，在危险情况下，经验较少的群体成员通过遵循有经验的群体成员的决定而受益。
Among group-living animals, some members may derive benefit by following the decisions of other members. Free-ranging wild Asian elephants in Mudumalai National Park, southern India, must often cross roads and can be disturbed by vehicles. We assessed if measures of road and traffic characteristics serve as indicators of risk, and compared behaviours of different age classes during road-crossing events. More individuals displayed excitable behaviour on wider roads. A larger number of adults entered the road first, which is considered the most dangerous position, compared with immature elephants. Immature individuals tended to move ahead of others on the road, suggesting that it is more important for immature individuals to follow adults at the beginning of a crossing than to follow along for the entire crossing. These findings may suggest that less experienced group members derive benefit by following the decisions of experienced ones under risky situations.