Graded leadership by dominant animals in a herd of female beef cattle on pasture
Graded leadership by dominant animals in a herd of female beef cattle on pasture
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DOI：
10.1016/j.anbehav.2010.01.019
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发表时间：
2010-05-01
期刊：
影响因子：
2.5
通讯作者：
Simecek, Petr
中科院分区：
文献类型：
--
作者：
Sarova, Radka;Spinka, Marek;Simecek, Petr
在动物群体的领导中，占支配地位的个体所起的作用还没有得到很好的理解。我们调查了是否占主导地位的肉牛，牛，有更多的影响力，牛群运动的牧场比更多的下属奶牛。从黎明到黄昏，对一群15头Gasconne奶牛进行为期3周的观察。每隔1分钟用GPS项圈记录所有成年奶牛的位置，并在5分钟扫描中记录每头奶牛的行为。通过随意取样记录优势等级。通过对记录数据的聚类分析，我们区分了三种群体行为模式：休息，觅食和旅行。在旅行和觅食期间，优势牛更靠近牛群的前部。在行进过程中，更占优势的奶牛也有更直接的轨迹，并且与最近的邻居和整个牛群更加一致。在觅食过程中，优势牛的轨迹短于从属牛。结果表明，觅食和短距离旅行运动的女性肉牛是不是由任何特定的个人，而是由一个等级的领导类型的影响，也就是说，更占主导地位的奶牛，更强的影响力，它可能对牛群的运动。(C)2010年，动物行为研究协会。由爱思唯尔有限公司出版。保留所有权利。
The role of dominant individuals in leading groups of animals is not yet well understood. We investigated whether dominant beef cows, Bos taurus, have more influence on herd movement on pasture than more subordinate cows. A herd of 15 Gasconne cows was observed for a 3-week period between dawn and dusk. The positions of all adult cows were recorded with GPS collars at 1 min intervals and the behaviour of each cow was recorded in 5 min scans. The dominance hierarchy was recorded by ad libitum sampling. Through cluster analysis of the recorded data, we distinguished three herd behaviour patterns: resting, foraging and travelling. Dominant cows were closer to the front of the herd during both travelling and foraging. During travelling, more dominant cows also had more direct trajectories and were more aligned both with their nearest neighbours and with the whole herd. During foraging, the trajectories of dominant cows were shorter than those of subordinate cows. The results indicate that foraging and short-distance travelling movements by female beef cattle are not led by any particular individual but rather are influenced by a graded type of leadership; that is, the more dominant a cow is, the stronger the influence it may have on the movements of the herd. (C) 2010 The Association for the Study of Animal Behaviour. Published by Elsevier Ltd. All rights reserved.