EconPapers    
Economics at your fingertips  
 

Paternal provisioning results from ecological change

Ingela Alger, Paul L. Hooper, Donald Cox (), Jonathan Stieglitz and Hillard Kaplan
Additional contact information
Paul L. Hooper: Department of Anthropology [Albuquerque] - The University of New Mexico [Albuquerque] - NMC - New Mexico Consortium
Jonathan Stieglitz: IAST - Institute for Advanced Study in Toulouse, Department of Anthropology [Albuquerque] - The University of New Mexico [Albuquerque] - NMC - New Mexico Consortium

Post-Print from HAL

Abstract: Paternal provisioning among humans is puzzling because it is rare among primates and absent in nonhuman apes and because emergent provisioning would have been subject to paternity theft. A provisioning "dad" loses fitness at the hands of nonprovisioning, mate-seeking "cads." Recent models require exacting interplay between male provisioning and female choice to overcome this social dilemma. We instead posit that ecological change favored widespread improvements in male provisioning incentives, and we show theoretically how social obstacles to male provisioning can be overcome. Greater availability of energetically rich, difficult-to-acquire foods enhances female–male and male–male complementarities, thus altering the fitness of dads versus cads. We identify a tipping point where gains from provisioning overcome costs from paternity uncertainty and the dad strategy becomes viable. Stable polymorphic states are possible, meaning that dads need not necessarily eliminate cads. Our simulations suggest that with sufficient complementarities, dads can emerge even in the face of high paternity uncertainty. Our theoretical focus on ecological change as a primary factor affecting the trade-off between male mating and parenting effort suggests different possibilities for using paleo-climatic, archaeological, and genomic evidence to establish the timing of and conditions associated with emergence of paternal provisioning in the hominin lineage.

Keywords: Cooperation; Parental investment; Human evolution; Fatherhood; Paternal care (search for similar items in EconPapers)
Date: 2020
Note: View the original document on HAL open archive server: https://hal.science/hal-02923942v1
References: Add references at CitEc
Citations: View citations in EconPapers (6)

Published in Proceedings of the National Academy of Sciences of the United States of America, 2020, 117 (20), pp.10746-10754. ⟨10.1073/pnas.1917166117⟩

Downloads: (external link)
https://hal.science/hal-02923942v1/document (application/pdf)

Related works:
Journal Article: Paternal provisioning results from ecological change (2020) Downloads
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:hal:journl:hal-02923942

DOI: 10.1073/pnas.1917166117

Access Statistics for this paper

More papers in Post-Print from HAL
Bibliographic data for series maintained by CCSD ().

 
Page updated 2025-03-19
Handle: RePEc:hal:journl:hal-02923942