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The dominance of certain individuals over others (hierarchy) is a feature of many animal social structures. Many methods exist to infer hierarchies from social interactions, but there are no clear guidelines on the number of observations required to infer dominance hierarchies reliably in specific animal groups.

One reason for this is the 'steepness' of the hierarchy - whether higher-ranked individuals win almost all conflicts, or where the outcome of a conflict is much less predictable.

aniDom is a R-package developed to investigate this, allowing uncertainty and steepness of an inferred hierarchy to be measured.


aniDom is open-source and can be downloaded via the following link:



For more information please refer to:

Sanchez Tojar, Schoeder and Farine (2017) A practical guide for inferring reliable dominance hierarchies and estimating their uncertainty, J. Animal Ecology, DOI:10.1111/1365-2656.12776


Further work by the authors can be found here:

Damien Farine (@DamienFarine): https://sites.google.com/site/drfarine/

Alfredo Sanchez Tojar (@ASanchez_Tojar): https://www.researchgate.net/profile/Alfredo_Sanchez-Tojar


Internal case number 8156




Inferring Dominance Hierarchies and Estimating Uncertainty in Animal Social Structures

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