Department of Economics and Business Economics

Aggression heuristics underlie animal dominance hierarchies and provide evidence of group-level social information

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Standard

Aggression heuristics underlie animal dominance hierarchies and provide evidence of group-level social information. / Hobson, Elizabeth; Mønster, Dan; DeDeo, Simon.

In: PNAS (Proceedings of the National Academy of Sciences of the United States of America), Vol. 118, No. 10, e2022912118, 03.2021.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Harvard

Hobson, E, Mønster, D & DeDeo, S 2021, 'Aggression heuristics underlie animal dominance hierarchies and provide evidence of group-level social information', PNAS (Proceedings of the National Academy of Sciences of the United States of America), vol. 118, no. 10, e2022912118. https://doi.org/10.1073/pnas.2022912118

APA

Hobson, E., Mønster, D., & DeDeo, S. (2021). Aggression heuristics underlie animal dominance hierarchies and provide evidence of group-level social information. PNAS (Proceedings of the National Academy of Sciences of the United States of America), 118(10), [e2022912118]. https://doi.org/10.1073/pnas.2022912118

CBE

Hobson E, Mønster D, DeDeo S. 2021. Aggression heuristics underlie animal dominance hierarchies and provide evidence of group-level social information. PNAS (Proceedings of the National Academy of Sciences of the United States of America). 118(10):Article e2022912118. https://doi.org/10.1073/pnas.2022912118

MLA

Hobson, Elizabeth, Dan Mønster and Simon DeDeo. "Aggression heuristics underlie animal dominance hierarchies and provide evidence of group-level social information". PNAS (Proceedings of the National Academy of Sciences of the United States of America). 2021. 118(10). https://doi.org/10.1073/pnas.2022912118

Vancouver

Hobson E, Mønster D, DeDeo S. Aggression heuristics underlie animal dominance hierarchies and provide evidence of group-level social information. PNAS (Proceedings of the National Academy of Sciences of the United States of America). 2021 Mar;118(10). e2022912118. https://doi.org/10.1073/pnas.2022912118

Author

Hobson, Elizabeth ; Mønster, Dan ; DeDeo, Simon. / Aggression heuristics underlie animal dominance hierarchies and provide evidence of group-level social information. In: PNAS (Proceedings of the National Academy of Sciences of the United States of America). 2021 ; Vol. 118, No. 10.

Bibtex

@article{9a552358c67843caab244632f3f9ff1f,
title = "Aggression heuristics underlie animal dominance hierarchies and provide evidence of group-level social information",
abstract = "Members of a social species need to make appropriate decisions about who, how, and when to interact with others in their group. However, it has been difficult for researchers to detect the inputs to these decisions and, in particular, how much information individuals actually have about their social context. We present a method that can serve as a social assay to quantify how patterns of aggression depend upon information about the ranks of individuals within social dominance hierarchies. Applied to existing data on aggression in 172 social groups across 85 species in 23 orders, it reveals three main patterns of rank-dependent social dominance: the downward heuristic (aggress uniformly against lower-ranked opponents), close competitors (aggress against opponents ranked slightly below self), and bullying (aggress against opponents ranked much lower than self). The majority of the groups (133 groups, 77%) follow a downward heuristic, but a significant minority (38 groups, 22%) show more complex social dominance patterns (close competitors or bullying) consistent with higher levels of social information use. These patterns are not phylogenetically constrained and different groups within the same species can use different patterns, suggesting that heuristic use may depend on context and the structuring of aggression by social information should not be considered a fixed characteristic of a species. Our approach provides opportunities to study the use of social information within and across species and the evolution of social complexity and cognition.",
keywords = "Animal sociality, Animal conflict, Dominance hierarchy, Self-organizing systems",
author = "Elizabeth Hobson and Dan M{\o}nster and Simon DeDeo",
year = "2021",
month = mar,
doi = "10.1073/pnas.2022912118",
language = "English",
volume = "118",
journal = "Proceedings of the National Academy of Sciences of the United States of America",
issn = "0027-8424",
publisher = "The National Academy of Sciences of the United States of America",
number = "10",

}

RIS

TY - JOUR

T1 - Aggression heuristics underlie animal dominance hierarchies and provide evidence of group-level social information

AU - Hobson, Elizabeth

AU - Mønster, Dan

AU - DeDeo, Simon

PY - 2021/3

Y1 - 2021/3

N2 - Members of a social species need to make appropriate decisions about who, how, and when to interact with others in their group. However, it has been difficult for researchers to detect the inputs to these decisions and, in particular, how much information individuals actually have about their social context. We present a method that can serve as a social assay to quantify how patterns of aggression depend upon information about the ranks of individuals within social dominance hierarchies. Applied to existing data on aggression in 172 social groups across 85 species in 23 orders, it reveals three main patterns of rank-dependent social dominance: the downward heuristic (aggress uniformly against lower-ranked opponents), close competitors (aggress against opponents ranked slightly below self), and bullying (aggress against opponents ranked much lower than self). The majority of the groups (133 groups, 77%) follow a downward heuristic, but a significant minority (38 groups, 22%) show more complex social dominance patterns (close competitors or bullying) consistent with higher levels of social information use. These patterns are not phylogenetically constrained and different groups within the same species can use different patterns, suggesting that heuristic use may depend on context and the structuring of aggression by social information should not be considered a fixed characteristic of a species. Our approach provides opportunities to study the use of social information within and across species and the evolution of social complexity and cognition.

AB - Members of a social species need to make appropriate decisions about who, how, and when to interact with others in their group. However, it has been difficult for researchers to detect the inputs to these decisions and, in particular, how much information individuals actually have about their social context. We present a method that can serve as a social assay to quantify how patterns of aggression depend upon information about the ranks of individuals within social dominance hierarchies. Applied to existing data on aggression in 172 social groups across 85 species in 23 orders, it reveals three main patterns of rank-dependent social dominance: the downward heuristic (aggress uniformly against lower-ranked opponents), close competitors (aggress against opponents ranked slightly below self), and bullying (aggress against opponents ranked much lower than self). The majority of the groups (133 groups, 77%) follow a downward heuristic, but a significant minority (38 groups, 22%) show more complex social dominance patterns (close competitors or bullying) consistent with higher levels of social information use. These patterns are not phylogenetically constrained and different groups within the same species can use different patterns, suggesting that heuristic use may depend on context and the structuring of aggression by social information should not be considered a fixed characteristic of a species. Our approach provides opportunities to study the use of social information within and across species and the evolution of social complexity and cognition.

KW - Animal sociality

KW - Animal conflict

KW - Dominance hierarchy

KW - Self-organizing systems

U2 - 10.1073/pnas.2022912118

DO - 10.1073/pnas.2022912118

M3 - Journal article

C2 - 33658380

VL - 118

JO - Proceedings of the National Academy of Sciences of the United States of America

JF - Proceedings of the National Academy of Sciences of the United States of America

SN - 0027-8424

IS - 10

M1 - e2022912118

ER -