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首页> 外文期刊>American journal of primatology >Intergroup relations and home range use in Verreaux's sifaka (Propithecus verreauxi)
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Intergroup relations and home range use in Verreaux's sifaka (Propithecus verreauxi)

机译：Verreaux的sifaka（Propithecus verreauxi）之间的族际关系和家庭范围使用

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Relationships between neighboring groups feature prominently in socioecological theory, but few empirical studies have focused on the effects of neighbors on the behavior of primates. Interactions between neighboring groups are most conspicuous during intergroup encounters, but the likelihood of encounters with neighbors can also affect ranging and activity patterns indirectly, and, as a result, behavioral patterns in areas of exclusive use may differ from those in overlap areas of adjacent home ranges. The aim of this study was to examine intergroup relations and spatial variation in home range use in Verreaux's sifaka (Propithecus verreauxi) during the annual mating season. Based on 230 hr of focal animal data collected from ten members of five adjacent groups, we found that behavioral patterns and patterns of resource utilization were not markedly different between areas of exclusive use and overlap areas of adjacent home ranges. Group cohesion tended to be higher in overlap than in core areas, but the proportion of time spent resting and foraging did not differ between these two areas. However, dominant males exhibited a higher scent-marking rate in overlap areas. Observations during intergroup encounters revealed that chases between males occurred frequently, whereas fights involving physical contact were not observed. We also found that the intergroup dominance hierarchy depended on the relative group size or the number of males in each group, with groups of lower dominance rank exhibiting a tendency to sleep proportionally more often in their core areas. The results of this study suggest that in primate species with a moderate level of intergroup aggression, such as Verreaux's sifaka, the possibility of encountering neighbors in areas of home range overlap does not exert strong influence on their behavior and resource utilization.
机译：在社会生态学理论中，相邻群体之间的关系具有显着特征，但是很少有实证研究集中在邻居对灵长类动物行为的影响上。在小组间的相遇中，相邻群体之间的互动最为明显，但与邻居相遇的可能性也可能间接影响测距和活动模式，因此，专用区域内的行为模式可能与相邻房屋重叠区域内的行为模式不同。范围。这项研究的目的是研究在每年交配季节Verreaux的sifaka（Propithecus verreauxi）的家庭使用之间的族群关系和空间变化。根据从五个相邻组的十个成员收集的230小时的重点动物数据，我们发现，在专有使用区域和相邻家庭范围的重叠区域之间，行为模式和资源利用模式没有显着差异。群体内聚力在重叠部分倾向于比核心地区更高，但是在这两个地区之间休息和觅食所花费的时间比例没有差异。但是，优势男性在重叠区域表现出较高的气味标记率。小组间相遇期间的观察表明，雄性之间经常发生追赶，而没有观察到涉及身体接触的战斗。我们还发现，群体间支配地位的等级取决于相对群体的大小或每组男性的数量，支配地位较低的群体在其核心区域更倾向于按比例睡眠。这项研究的结果表明，在具有适度群体间侵略性的灵长类动物中，例如Verreaux的sifaka，在家庭范围重叠的地区遇到邻居的可能性不会对其行为和资源利用产生重大影响。

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