A double pedigree reveals genetic but not cultural inheritance of cooperative personalities in wild banded mongooses

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Nichols , H J , Arbuckle , K , Sanderson , J L , Vitikainen , E I K , Marshall , H H , Thompson , F J , Cant , M A & Wells , D A 2021 , ' A double pedigree reveals genetic but not cultural inheritance of cooperative personalities in wild banded mongooses ' , Ecology Letters , vol. 24 , no. 9 , pp. 1966-1975 . https://doi.org/10.1111/ele.13833

Title: A double pedigree reveals genetic but not cultural inheritance of cooperative personalities in wild banded mongooses
Author: Nichols, Hazel J.; Arbuckle, Kevin; Sanderson, Jennifer L.; Vitikainen, Emma I. K.; Marshall, Harry H.; Thompson, Faye J.; Cant, Michael A.; Wells, David A.
Contributor: University of Helsinki, Biosciences
Date: 2021-09
Language: eng
Number of pages: 10
Belongs to series: Ecology Letters
ISSN: 1461-023X
URI: http://hdl.handle.net/10138/333405
Abstract: Personality traits, such as the propensity to cooperate, are often inherited from parents to offspring, but the pathway of inheritance is unclear. Traits could be inherited via genetic or parental effects, or culturally via social learning from role models. However, these pathways are difficult to disentangle in natural systems as parents are usually the source of all of these effects. Here, we exploit natural 'cross fostering' in wild banded mongooses to investigate the inheritance of cooperative behaviour. Our analysis of 800 adult helpers over 21 years showed low but significant genetic heritability of cooperative personalities in males but not females. Cross fostering revealed little evidence of cultural heritability: offspring reared by particularly cooperative helpers did not become more cooperative themselves. Our results demonstrate that cooperative personalities are not always highly heritable in wild, and that the basis of behavioural traits can vary within a species (here, by sex).
Subject: cooperation
cultural inheritance
helping syndromes
heritability
missing inheritance
personality
CONSISTENT INDIVIDUAL-DIFFERENCES
FITNESS CONSEQUENCES
EVOLUTION
CARE
BEHAVIOR
BIOLOGY
HERITABILITY
TRANSMISSION
INFORMATION
RECIPROCITY
1181 Ecology, evolutionary biology
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