A veil of ignorance can promote fairness in a mammal society

Marshall HH, Johnstone RA, Thompson FJ, Nichols HJ, Wells D, Hoffman J, Kalema-Zikusoka G, Sanderson JL, Vitikainen EIK, Blount JD, Cant MA (2021)
Nature Communications 12(1): 3717.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
Download
Es wurden keine Dateien hochgeladen. Nur Publikationsnachweis!
Autor*in
Marshall, H. H.; Johnstone, R. A.; Thompson, F. J.; Nichols, H. J.; Wells, D.; Hoffman, JosephUniBi ; Kalema-Zikusoka, G.; Sanderson, J. L.; Vitikainen, E. I. K.; Blount, J. D.; Cant, M. A.
Abstract / Bemerkung
**Abstract**
Rawls argued that fairness in human societies can be achieved if decisions about the distribution of societal rewards are made from behind a veil of ignorance, which obscures the personal gains that result. Whether ignorance promotes fairness in animal societies, that is, the distribution of resources to reduce inequality, is unknown. Here we show experimentally that cooperatively breeding banded mongooses, acting from behind a veil of ignorance over kinship, allocate postnatal care in a way that reduces inequality among offspring, in the manner predicted by a Rawlsian model of cooperation. In this society synchronized reproduction leaves adults in a group ignorant of the individual parentage of their communal young. We provisioned half of the mothers in each mongoose group during pregnancy, leaving the other half as matched controls, thus increasing inequality among mothers and increasing the amount of variation in offspring birth weight in communal litters. After birth, fed mothers provided extra care to the offspring of unfed mothers, not their own young, which levelled up initial size inequalities among the offspring and equalized their survival to adulthood. Our findings suggest that a classic idea of moral philosophy also applies to the evolution of cooperation in biological systems.
Erscheinungsjahr
2021
Zeitschriftentitel
Nature Communications
Band
12
Ausgabe
1
Art.-Nr.
3717
eISSN
2041-1723
Page URI
https://pub.uni-bielefeld.de/record/2958866

Zitieren

Marshall HH, Johnstone RA, Thompson FJ, et al. A veil of ignorance can promote fairness in a mammal society. Nature Communications. 2021;12(1): 3717.
Marshall, H. H., Johnstone, R. A., Thompson, F. J., Nichols, H. J., Wells, D., Hoffman, J., Kalema-Zikusoka, G., et al. (2021). A veil of ignorance can promote fairness in a mammal society. Nature Communications, 12(1), 3717. https://doi.org/10.1038/s41467-021-23910-6
Marshall, H. H., Johnstone, R. A., Thompson, F. J., Nichols, H. J., Wells, D., Hoffman, J., Kalema-Zikusoka, G., Sanderson, J. L., Vitikainen, E. I. K., Blount, J. D., et al. (2021). A veil of ignorance can promote fairness in a mammal society. Nature Communications 12:3717.
Marshall, H.H., et al., 2021. A veil of ignorance can promote fairness in a mammal society. Nature Communications, 12(1): 3717.
H.H. Marshall, et al., “A veil of ignorance can promote fairness in a mammal society”, Nature Communications, vol. 12, 2021, : 3717.
Marshall, H.H., Johnstone, R.A., Thompson, F.J., Nichols, H.J., Wells, D., Hoffman, J., Kalema-Zikusoka, G., Sanderson, J.L., Vitikainen, E.I.K., Blount, J.D., Cant, M.A.: A veil of ignorance can promote fairness in a mammal society. Nature Communications. 12, : 3717 (2021).
Marshall, H. H., Johnstone, R. A., Thompson, F. J., Nichols, H. J., Wells, D., Hoffman, Joseph, Kalema-Zikusoka, G., Sanderson, J. L., Vitikainen, E. I. K., Blount, J. D., and Cant, M. A. “A veil of ignorance can promote fairness in a mammal society”. Nature Communications 12.1 (2021): 3717.

Export

Markieren/ Markierung löschen
Markierte Publikationen

Open Data PUB

Suchen in

Google Scholar