Related Experiment Video
Updated: May 25, 2026
04:10
Visually Sexing Loggerhead Shrike (Lanius Ludovicianus) Using Plumage Coloration and Pattern
Published on: March 8, 2020
Investigating sex-biased migration during the Neolithic transition in Europe, using an explicit spatial simulation
Rita Rasteiro1, Pierre-Antoine Bouttier, Vítor C Sousa
1Instituto Gulbenkian de Ciências, Oeiras, Portugal. rr147@le.ac.uk
Proceedings. Biological Sciences
|February 3, 2012
Summary
Neolithic farmers
Area of Science:
- Human evolution
- Population genetics
- Archaeogenetics
Background:
- The Neolithic transition involved significant cultural and demographic shifts.
- Studies suggest differing patterns in mitochondrial DNA (mtDNA) and Y-chromosome data during the European Neolithic.
- These discrepancies may stem from distinct male and female demographic histories.
Observation:
- Post-marital residence (PMR) rules (patrilocality, matrilocality, bilocality) likely influenced social organization during the hunter-gatherer to farmer transition.
- Sex-biased migration patterns associated with PMR rules can shape genetic diversity.
- An individual-based simulation explored 45 scenarios of PMR and admixture between hunter-gatherers and farmers.
Findings:
- Different PMR systems generate distinct genetic diversity and differentiation patterns.
- Asymmetries between mtDNA and Y-chromosome data can arise from sex-biased behaviors and mutation rate differences.
- Patrilocality in farmers best explains current genetic diversity patterns compared to matrilocality or bilocality.
- Hunter-gatherer PMR rules influenced farmer genetic diversity even after hunter-gatherers diminished.
Implications:
- Understanding PMR rules is crucial for interpreting human genetic diversity during the Neolithic.
- Simulation models provide insights into the complex interplay of culture and genetics.
- The findings highlight the lasting impact of ancient social structures on contemporary human populations.
Related Concept Videos
00:53Migration
Migration is long-range, seasonal movement from one region or habitat to another. This common strategy, carried out by many different organisms around the world, is an adaptive response that typically corresponds to changes in an organism’s environment, like resource availability or climate. Migrations can involve huge groups of thousands of animals as well as single individuals traveling alone and can range from thousands of kilometers to just a few hundred meters.
02:29Hybrid Zones
Hybrid zones are narrow regions where two closely related species interact, mate, and produce hybrids. Relative to either parent species, hybrids may possess distinct phenotypic or genetic differences that impact their survival and reproductive success. The genetic variances introduced by hybridization influence species diversity and speciation processes within the hybrid zone.
01:23Criticisms of the Evolutionary Perspective
In a study where individuals posing as strangers offered compliments and proposed casual sex to students, the responses differed significantly based on gender. Not a single woman accepted the proposal, while 70% of the men agreed. This outcome provides a useful scenario to explore through the lens of evolutionary psychology and social learning theory, highlighting the diverse perspectives on human sexual behaviors.
Evolutionary psychology provides one explanation for these findings, suggesting...
Evolutionary psychology provides one explanation for these findings, suggesting...
01:09Mutation, Gene Flow, and Genetic Drift
In a population that is not at Hardy-Weinberg equilibrium, the frequency of alleles changes over time. Therefore, any deviations from the five conditions of Hardy-Weinberg equilibrium can alter the genetic variation of a given population. Conditions that change the genetic variability of a population include mutations, natural selection, non-random mating, gene flow, and genetic drift (small population size).
01:56Gastrulation
Gastrulation establishes the three primary tissues of an embryo: the ectoderm, mesoderm, and endoderm. This developmental process relies on a series of intricate cellular movements, which in humans transforms a flat, “bilaminar disc” composed of two cell sheets into a three-tiered structure. In the resulting embryo, the endoderm serves as the bottom layer, and stacked directly above it is the intermediate mesoderm, and then the uppermost ectoderm. Respectively, these tissue strata will form...
01:07Speciation Rates
Overview