Norman Kerri, Pellis Sergio, Barrett Louise, Peter Henzi S
Department of Psychology, The University of Lethbridge, 4401 University Drive, Lethbridge, Alberta T1K 3M4, Canada; Department of Neuroscience, The University of Lethbridge, 4401 University Drive, Lethbridge, Alberta T1K 3M4, Canada.
Department of Psychology, The University of Lethbridge, 4401 University Drive, Lethbridge, Alberta T1K 3M4, Canada; Applied Behavioural Ecology and Ecosystems Research Unit, Department of Environmental Sciences, University of South Africa, P.B. X6, Florida 1710, South Africa.
Behav Processes. 2015 Jan;110:88-95. doi: 10.1016/j.beproc.2014.09.001. Epub 2014 Sep 16.
We used two sets of videotaped data of playing domestic dog dyads to determine whether rolling over during play served as a signal of submission or whether it was a combat maneuver adopted as part of an ongoing play sequence. Our results provide strong support for the latter. In the absence of any overt indication of agonism, the frequency with which rollovers occurred was determined primarily by play bout length. The discrepancy in partner size had no effect on the probability that rollovers would occur and there was no evidence that smaller dogs were more likely to rollover or to sustain a supine posture for longer, if they did. The supine phase of rollovers was significantly skewed to short durations. Most rollovers were either defensive (evading a nape bite) or offensive (launching an attack). None could be categorized as submissive. We conclude that asymmetries in the performance of rollovers cannot be assumed to point to asymmetries in the relationships between play partners. This article is part of a Special Issue entitled: Canine Behavior.
我们使用了两组家养犬二元组玩耍的录像数据，以确定玩耍时翻身是作为屈服信号，还是作为正在进行的玩耍序列的一部分而采用的战斗策略。我们的结果为后者提供了有力支持。在没有任何明显争斗迹象的情况下，翻身出现的频率主要由玩耍回合的时长决定。伙伴体型差异对翻身发生的概率没有影响，而且没有证据表明体型较小的狗更有可能翻身，或者如果翻身的话，更有可能长时间保持仰卧姿势。翻身的仰卧阶段明显偏向于短时长。大多数翻身要么是防御性的（躲避颈部咬伤），要么是进攻性的（发起攻击）。没有一个可以归类为屈服行为。我们得出结论，不能认为翻身行为中的不对称性就意味着玩耍伙伴之间关系的不对称。本文是名为《犬类行为》的特刊的一部分。
