Takahashi L K, Blanchard R J
Department of Psychology, University of Hawaii, Honolulu, HI 96822 U.S.A.
Behav Processes. 1982 Apr;7(1):49-62. doi: 10.1016/0376-6357(82)90052-3.
Intra- and interspecific agonistic encounters in Long-Evans and field-trapped Rattus norvegicus and Rattus rattus showed a consistency in the form and character of attack and defensive behaviors. Colony alpha males exhibited high levels of lateral attack, on-top, and chasing behaviors which resulted in a high percentage of bites on the intruder's back. Bites directed to the back were countered by intruders through the utilization of boxing, on-back, and flight defense. These findings indicate that agonistic interactions in Rattus are underlined by back-attack and back-defense strategies. A sex difference in biting was also consistent across strains: males bit the back and flanks and females the head of an anesthetized stranger which suggest differences in the motivation of male and female attack.
在长 Evans 大鼠以及野外捕获的褐家鼠和黑家鼠中，种内和种间的争斗遭遇在攻击和防御行为的形式与特征上表现出一致性。群体中的优势雄性表现出高水平的侧向攻击、骑背攻击和追逐行为，这导致对入侵者背部的咬伤比例很高。入侵者通过拳击、背身防御和逃跑防御来应对指向背部的咬伤。这些发现表明，家鼠的争斗互动以背部攻击和背部防御策略为突出特点。不同品系间在撕咬方面的性别差异也具有一致性：雄性会撕咬麻醉状态下陌生个体的背部和侧面，而雌性则撕咬其头部，这表明雄性和雌性攻击动机存在差异。
