Moving from one habitat to another, the dispersal of individuals has consequences for their conditions, population dynamics and gene flow. Our major motivation was to explore the effects of different forestry treatments, such as preparation (partial) cuts and clear cuts, on the selected population of the forest ground beetle, Carabus coriaceus (Coleoptera: Carabidae). We tagged six individuals (three males and three females) with small radio-transmitters and each was released in the treatment habitat core, at the edges and in the core of control forests respectively. The recorded trajectories were divided into two major movement phases: a random walk and a directional movement using hidden Markov models. Our results revealed that in the core zone of preparation cuts, the random walk and the directional movement were equally distributed in the trajectory. A clear directional movement was observed in the clear cuts suggesting the beetles moved directly toward the adjacent (control) forest interior. The trajectories at the edges of both treatments were dominated by the random walk and so for the controls. These results suggest that forest ground beetles can avoid the forestry treatments especially clear cuts, however edge habitats and (the studied) preparation cuts can mitigate the migration constraints due to their more favorable environmental conditions compared to clear cuts.

从一个栖息地移动到另一个栖息地，个体的分散会对他们的条件、种群动态和基因流动产生影响。我们的主要动机是探索不同的林业处理方法，例如准备（部分）砍伐和清除砍伐，对选定的林地甲虫Carabus coriaceus种群的影响（鞘翅目：Carabidae）。我们用小型无线电发射器标记了六个个体（三个雄性和三个雌性），每个个体分别在处理栖息地核心、控制森林的边缘和核心释放。记录的轨迹分为两个主要运动阶段：随机游走和使用隐马尔可夫模型的定向运动。我们的结果表明，在准备切割的核心区域中，随机游走和定向运动在轨迹中均匀分布。在清晰的切割中观察到明显的定向运动，表明甲虫直接向相邻的（对照）森林内部移动。两种处理边缘的轨迹由随机游走主导，对照组也是如此。