DEVELOPMENT OF DOMINANCE IN DOMESTIC RATS IN LABORATORY AND SEMINATURAL ENVIRONMENTS
DEVELOPMENT OF DOMINANCE IN DOMESTIC RATS IN LABORATORY AND SEMINATURAL ENVIRONMENTS
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DOI：
10.1016/0376-6357(89)90036-3
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发表时间：
1989-06-01
影响因子：
1.3
通讯作者：
BOICE, R
中科院分区：
文献类型：
--
作者：
ADAMS, N;BOICE, R
研究了饲养和饲养在三种不同物理环境中的褐家鼠混合性别群体的优势等级。从35日龄开始，在室外围栏、室内围栏或实验室笼子中观察到菌落持续24周。在这两个围栏群体中，雄性的优势关系都是基于支配者不对称地表现出咬人的攻击和下属毫不含糊地表现出顺从的姿态。这些行为并没有完全发展，也没有出现优势，直到雄性140-150天的年龄。在两种不同类型的实验室笼子环境中，没有观察到攻击和屈服的不对称表现，也没有观察到优势关系；这些雄性在整个成年期继续战斗。然而，所有类型的雄性都会攻击雄性入侵者。物理环境的性质似乎对支配地位的发展有强大的影响，但不影响针对入侵者的争斗行为。
Dominance hierarchies were studied in mixed-sex colonies of albino rats Rattus norvegicus reared and housed in three different types of physical environments. Colonies were observed in either an outdoor pen, an indoor pen, or in laboratory cages for a period of 24 weeks initiated at 35 days of age. In both pen colonies, male dominance relationships were based on the asymmetric display of biting attacks by dominants and the unequivocal display of submissive postures by subordinates. These behaviours did not fully develop, nor did dominance emerge until males were 140-150 days of age. No asymmetric display of attacks and submission, nor dominance relationships were observed in two different types of laboratory cage settings; these males continued to play fight throughout adulthood. However, males of all colony types attacked male intruders. The nature of the physical environment appeared to have a powerful influence on the development of dominance, but did not affect agonistic behaviour directed toward intruders.