Agonistic interactions during competition for different resources in captive European wild pigs (Sus scrofa)

Edgar M. Schnebel, Joseph G. Griswold
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引用次数: 25

Abstract

We observed a group of captive wild pigs to determine how agonistic encounters vary as a function of preceding activities and with the availability and distribution of resources. Data are presented supporting previous competition hypotheses. The frequency and intensity of encounters was highest during competition for resources that were limited and defendable. Activities associated with limited but undefendable resources were followed by fewer encounters which were of lower intensity. When unlimited and undefendable resources were involved, agonistic encounters were infrequent. Comparisons with earlier work show that patterns of agonistic behavior in groups of Sus scrofa, regardless of the environmental setting, are not simply related to the preceding activity per se, but are related systematically to the availability and distribution of resources associated with that activity. A short-term decrease in the tendency of one male to displace its rank neighbor, not encompassed by familiar notions of rank-neighbor relations, was discovered. A previously undescribed visual display used to prevent or inhibit aggression was observed.

圈养欧洲野猪(Sus scrofa)争夺不同资源过程中的拮抗相互作用
我们观察了一组圈养的野猪,以确定对抗遭遇如何随着先前的活动以及资源的可用性和分配而变化。数据支持以前的竞争假设。在争夺有限和可防御的资源时,遭遇战的频率和强度最高。与有限但无法防御的资源有关的活动之后,遭遇较少,强度较低。当涉及到无限和不可防御的资源时,敌对的遭遇很少发生。与早期工作的比较表明,无论环境环境如何,苏斯克罗法群体的竞争行为模式不仅与先前的活动本身有关,而且与与该活动相关的资源的可用性和分配系统相关。研究发现,一个男性取代其等级邻居的趋势在短期内会减少,这并不包含在等级邻居关系的熟悉概念中。观察到一种先前未描述的用于防止或抑制攻击的视觉显示。
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