...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Ethology >The maintenance of stable dominance hierarchies and the pattern of aggression: Support for the suppression hypothesis
【24h】

The maintenance of stable dominance hierarchies and the pattern of aggression: Support for the suppression hypothesis

机译：维持稳定的支配地位等级和侵略模式：支持压制假设

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Three hypotheses have been proposed to explain the development and maintenance of dominance hierarchies. According to the first hypothesis the dominance hierarchy is a result of the animals fighting once at their first encounter and then using the outcome of that fight to determine the rank order. The second hypothesis proposes that a dominance hierarchy reflects the fighting ability of the individuals in the group at each moment and is therefore relatively fluid with individuals continuously fighting for position. A third hypothesis, the suppression hypothesis, states that the dominance hierarchy is based to a large extent on the outcome of the first fight between the individuals but the dominant animal in each pair continuously attacks the subdominant individuals to condition them to lose in future encounters. We studied six well-established flocks containing six adult hens each (Gallus gallus domesticus). Five of the flocks had linear hierarchies. The aggression was significantly more often directed towards the next low-ranking individual. There was a good correlation between rank and comb size (height x width), but no significant correlation between rank and weight, or rank and level of fluctuating asymmetry. There was no significant correlation between levels of aggression and similarity of comb size for individuals of neighboring ranks. Our results tentatively support the suppression hypothesis for the maintenance of dominance hierarchies in the domestic hen.
机译：提出了三个假设来解释优势等级的发展和维持。根据第一个假设，优势等级是动物在第一次接触时就战斗一次的结果，然后使用该战斗的结果来确定等级顺序。第二个假设提出，优势等级反映了群体中每个时刻个体的战斗能力，因此在个体不断为地位而战时相对灵活。第三个假说是抑制假说，说统治地位在很大程度上是基于个体之间第一次打斗的结果，但是每对中的优势动物不断攻击劣势个体，使他们在将来的遭遇中失去。我们研究了六个成熟的鸡群，每个鸡群包含六只成年母鸡（家鸡）。五个羊群具有线性层次结构。侵略显然更多地是针对下一个低级个人。等级与梳齿大小（高度x宽度）之间具有良好的相关性，但等级与体重或波动性和非对称性的等级与水平之间无显着相关性。攻击等级和邻近等级的人的梳子大小相似度之间无显着相关性。我们的研究结果初步支持了抑制假设，以维持家禽的优势等级。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号