Coordinated Behaviour in Pigeon Flocks
Coordinated Behaviour in Pigeon Flocks
复制标题
鸽群的协调行为
作者：
M. Yomosa;T. Mizuguchi;G. Vásárhelyi;Máté Nagy
我们利用GPS轨迹数据分析了鸽群的飞行，揭示了鸽群行为最重要的运动学方面。基于两两统计的方法定量研究了鸟群的内部运动，发现在所有数据集中存在以下一般关系：1)以方向变化之间的延迟为特征的决策时间顺序与以鸟群内部纵向相对位置为特征的空间顺序严格相关；Ii)在盘旋运动中，鸽子混合使用两种理想的和根本不同的转弯策略，即平行路径和等半径型转弯。虽然鸽子倾向于保持它们在群中的相对位置，就像在平行路径近似中一样，但那些晚转弯的鸽子也会落后，就像在等半径情况下一样。等半径型车削在小半径车削中也表现得较多。
We analysed pigeon flock flights using GPS trajectory data to reveal the most important kinematic aspects of flocking behaviour. We quantitatively investigated the internal motion of the flock based on pairwise statistics and found the following general relationships in all datasets: i) the temporal order of decisions characterised by the delay between directional changes is strictly related to the spatial order characterised by the longitudinal relative position within the flock; ii) during circling motion, pigeons use a mixture of two idealised and fundamentally different turning strategies, namely, parallel-path and equal-radius type turning. While pigeons tend to maintain their relative position within the flock on average, as in the parallel-path approximation, those who turn later also get behind as in the equal-radius case. Equal-radius type turning also tends to be expressed more during smaller radius turns.
影响因子：
64.8
作者：
Portugal, Steven J.;Hubel, Tatjana Y.;Usherwood, James R.
通讯作者：
Usherwood, James R.