Takahashi L K, Lisk R D
J Comp Psychol. 1984 Sep;98(3):267-75.
Social interactions of cycling female golden hamsters paired with ovariectomized animals in large enclosures were primarily agonistic over the 4-day estrous cycle. These aggressive interactions were intense as indicated by frequent occurrences of chase and flight behavior. Dominant and subordinate social ranks were established in the majority of pairs (96%) tested, and even females in sexual heat were capable of attacking and dominating their rivals. Furthermore, cycling females exhibited significantly more aggressive acts than ovariectomized opponents 1 day prior to sexual receptivity. No differences in fighting patterns were found between animals on the other 3 days of the estrous cycle. Additional analyses revealed clear differences in agonistic elements, including flank marking, between dominant and subordinate females regardless of whether they were gonadectomized or intact. These analyses also showed that dominant individuals frequently chased and bit opponents during encounters within their nesting area. The data are examined for implications on the adaptive organization of female hamster agonistic behavior and the neuroendocrine regulation of species-typical behavior over the estrous cycle.
在大围栏中，将处于发情周期的雌性金黄仓鼠与卵巢切除的动物配对，它们之间的社会互动在4天的发情周期内主要表现为争斗行为。频繁出现的追逐和逃跑行为表明这些攻击性行为很激烈。在大多数测试的配对（96%）中都建立了主导和从属的社会等级，甚至处于发情期的雌性也能够攻击并支配它们的对手。此外，在性接受前1天，处于发情周期的雌性比卵巢切除的对手表现出明显更多的攻击行为。在发情周期的其他3天，动物之间的战斗模式没有差异。进一步的分析揭示了主导和从属雌性之间在争斗元素上的明显差异，包括侧腹标记，无论它们是性腺切除还是完整的。这些分析还表明，主导个体在其筑巢区域内相遇时经常追逐和咬对手。本文研究了这些数据对雌性仓鼠争斗行为的适应性组织以及发情周期中物种典型行为的神经内分泌调节的影响。
