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  1. List of dominance hierarchy species - Wikipedia. Gorillas form social groups with a dominance hierarchy, often topped by a large silverback male. Dominance hierarchies occur in many social animals. Primates.

  2. In the zoological field of ethology, a dominance hierarchy (formerly and colloquially called a pecking order) is a type of social hierarchy that arises when members of animal social groups interact, creating a ranking system.

  3. Dominance hierarchies are best known in social mammals, such as baboons and wolves, and in birds, notably chickens (in which the term peck order or peck right is often applied). In most cases the dominance hierarchy is relatively stable from day to day.

    • The Editors of Encyclopaedia Britannica
  4. 520 species. A dominance hierarchy (formerly and colloquially called a pecking order) is a type of social hierarchy that arises when members of animal social groups interact, creating a ranking system. A dominant higher-ranking individual is sometimes called alpha, and the submissive lower-ranking individual a beta.

  5. Jan 10, 2022 · Dominants punish subordinates via numerous behaviours, including eviction, aggression, social stress and infanticide. For example, some fishes have size-based dominance hierarchies where subordinates restrain their growth to maintain a minimum size difference between dominants and subordinates.

  6. Jan 12, 2022 · Norways Thorleif Schjelderup-Ebbe first described dominance hierarchies in his dissertation in 1921 while studying how domestic chickens both create pecking orders and understand their place in them. Chickens peck those with lower status and are in turn pecked by higher-ranking birds.

  7. Jan 8, 2018 · Scientists have spent decades working out the dominance hierarchies among just two or three species. But now, with the help of thousands of citizen scientists, a team of researchers has pieced together a hierarchy that ranks the feeder-fight-club performance of 136 North American bird species.

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