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The role of previous social encounters and body mass in determining social rank: an experiment with white-tailed deer

机译：先前的社交经历和体重在确定社交等级中的作用：白尾鹿实验

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摘要

The social organization of many vertebrates is based on dominance behaviours occurring between pairs of individuals. Initial encounters between any two individuals can be crucial in determining the dominance relationship that will prevail between them throughout their lifetime. Achieving a high dominance status can be critical when competition for limited resources such as foraging sites is intense. The mechanisms that prevail for the establishment and stability of dominance relationships between individuals are, however, poorly understood. Our study aims to identify factors influencing the establishment of dominance relationships between young individuals, using white-tailed deer, Odocoileus virginianus, fawns as a model species, and to evaluate the possibility of long-term individual recognition after temporal separation. We used an experimental approach to test the alternative hypotheses that dominance relationships after temporal separation are explained by (1) the outcome of the previous encounters between opponents or (2) the body mass difference between individuals independently of the outcome of initial encounters. Social rank was established during the first encounters between individuals based on differences in body mass and was maintained afterwards even when the differences in mass between individuals were reversed. Our results suggest that individual long-term recognition may influence the outcome and the stability of dominance relationships after temporal separation of individuals. Dyadic dominance relationships seem to be established early in life and may then endure into adulthood.
机译：许多脊椎动物的社会组织都是基于个体对之间的主导行为。任何两个人之间的初次接触对于确定一生之间将占据主导地位的关系至关重要。当对有限资源（例如觅食地点）的竞争非常激烈时，获得较高的统治地位至关重要。然而，人们对于建立和稳定个人之间的主导关系的机制知之甚少。我们的研究旨在使用白尾鹿，维吉尼亚小鹿，小鹿作为模型物种，确定影响年轻个体之间优势关系的因素，并评估时间分离后长期个体识别的可能性。我们使用一种实验方法来检验替代假设，即暂时分离后的优势关系由以下因素解释：（1）对手之间先前相遇的结果或（2）个人之间的体重差异与最初相遇的结果无关。社交等级是在个体之间的第一次相遇中根据体重差异而建立的，此后甚至在个体之间的质量差异发生逆转时也保持不变。我们的结果表明，个体的长期识别可能会影响个体的时间分离后的结果和优势关系的稳定性。二元优势关系似乎早在生活中就已建立，然后可能持续到成年。

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  • 来源
    《Animal behaviour》 |2006年第pt5期|p.1103-1110|共8页
  • 作者

    JOEELLE TAILLON; STEEVE D. COTE;

  • 作者单位

    Natural Sciences and Engineering Research Council of Canada-Produits forestiers Anticosti;

  • 收录信息 美国《科学引文索引》(SCI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 动物学;
  • 关键词

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