Finzi Alessandro, Rava Eleonora, D'Aniello Biagio
Didactic and Research Centre for Rabbit Welfare and Production, 56019 Pisa, Italy.
School of History, University of St Andrews, St Andrews KY16 9AJ, UK.
Animals (Basel). 2023 Feb 17;13(4):704. doi: 10.3390/ani13040704.
In this study, we report a particular begging strategy by Andean dogs and by humans on the unsurfaced road between the villages of Parotani and Cahiuasi in Bolivia. The positions of the dogs and humans begging and their behavioral displays were recorded. In dogs, the distance from each other was also recorded. Begging locations, for both dogs and humans, were permuted with a score, according to the higher probability of receiving food. The highest scores were assigned to the positions where cars had to slow down and the subjects were well visible, thus meriting a score corresponding to the higher probability of receiving a treat. The occurrences of the correct positioning at the external and internal parts of the bend were compared by a chi-square test. On a range of 93.3 km, the dogs were observed to always lie down at the border of the road, mainly alone (96.3%) and on hairpin bends, present due to the steep slope, obliging the vehicles to slow down. Humans were observed mainly in groups. The percentage of dogs lying on the external part of the bends was 81.2%, which was above the level of chance ( < 0.01). Humans were observed at external bends in 63.6% of cases, which was at chance level. Begging locations, for both dogs and humans, were permuted with a score according to the higher probability of receiving food. The mean scores were 1.48 and 0.65 for dogs and humans, respectively, and the difference was highly significant ( < 0.001).
在本研究中，我们报告了玻利维亚帕罗塔尼村和卡维阿西村之间未铺设路面的道路上，安第斯犬以及人类所采用的一种特殊乞讨策略。记录了犬和人类乞讨时的位置及其行为表现。对于犬，还记录了它们彼此之间的距离。根据获得食物的较高概率，对犬和人类的乞讨地点进行了评分排列。得分最高的是汽车必须减速且乞讨对象清晰可见的位置，因此获得与较高获得食物概率相对应的分数。通过卡方检验比较了在弯道内外正确定位的发生率。在93.3公里的路段上，观察到犬总是躺在路边，主要是单独躺着（96.3%），且在因陡坡而存在的发夹弯处，这迫使车辆减速。观察到人类主要成群出现。躺在弯道外侧的犬的百分比为81.2%，高于随机水平（<0.01）。在63.6%的情况下观察到人类出现在外侧弯道，处于随机水平。根据获得食物的较高概率，对犬和人类的乞讨地点进行了评分排列。犬和人类的平均得分分别为1.48和0.65，差异非常显著（<0.001）。
