5 research outputs found

    The human skeleton from the late iron age burial of Shirakavan (Armenia): a case study

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    This paper presents an bioarchaeological case study from Shirakavan. The skeletal remains belong to a male aged 40-45 years of age at death, with a stature above the average (177 cm). The presence of a horse skeleton in the discussed burial suggests that the human skeleton may have belonged to a horse rider. At the proximal end of the femur, there are some enthesopathies previously noted as common in horse riders. Analyses revealed a variety of pathologies, allowing inferences about the lifestyle and well-being of individual from Late Iron Age. The male suffered two cranial fractures, in nasal bones and frontal bone. Accidental falls involving facial injury may have contributed to antemortem tooth loss. Fractures ribs in the individual may be the result of direct blows to the chest or/from falling off of a horse. The clavicle injury observed in the individual discussed here can also be caused by a fall. There is degenerative pitting of the body of the neck vertebras indicating disc damage. Several vertebrae were asymmetrical (scoliosis). Perhaps mastoiditis was the leading cause of death at the individual from Shirakavan

    Stable population structure in Europe since the Iron Age, despite high mobility

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    Ancient DNA research in the past decade has revealed that European population structure changed dramatically in the prehistoric period (14,000–3000 years before present, YBP), reflecting the widespread introduction of Neolithic farmer and Bronze Age Steppe ancestries. However, little is known about how population structure changed from the historical period onward (3000 YBP - present). To address this, we collected whole genomes from 204 individuals from Europe and the Mediterranean, many of which are the first historical period genomes from their region (e.g. Armenia and France). We found that most regions show remarkable inter-individual heterogeneity. At least 7% of historical individuals carry ancestry uncommon in the region where they were sampled, some indicating cross-Mediterranean contacts. Despite this high level of mobility, overall population structure across western Eurasia is relatively stable through the historical period up to the present, mirroring geography. We show that, under standard population genetics models with local panmixia, the observed level of dispersal would lead to a collapse of population structure. Persistent population structure thus suggests a lower effective migration rate than indicated by the observed dispersal. We hypothesize that this phenomenon can be explained by extensive transient dispersal arising from drastically improved transportation networks and the Roman Empire’s mobilization of people for trade, labor, and military. This work highlights the utility of ancient DNA in elucidating finer scale human population dynamics in recent history

    Stable population structure in Europe since the Iron Age, despite high mobility

    Get PDF
    International audienceAncient DNA research in the past decade has revealed that European populationstructure changed dramatically in the prehistoric period (14,000–3000 years before present, YBP),reflecting the widespread introduction of Neolithic farmer and Bronze Age Steppe ancestries.However, little is known about how population structure changed from the historical period onward(3000 YBP - present). To address this, we collected whole genomes from 204 individuals fromEurope and the Mediterranean, many of which are the first historical period genomes from theirregion (e.g. Armenia and France). We found that most regions show remarkable inter-individualheterogeneity. At least 7% of historical individuals carry ancestry uncommon in the region wherethey were sampled, some indicating cross-Mediterranean contacts. Despite this high level ofmobility, overall population structure across western Eurasia is relatively stable through the historicalperiod up to the present, mirroring geography. We show that, under standard population geneticsmodels with local panmixia, the observed level of dispersal would lead to a collapse of populationstructure. Persistent population structure thus suggests a lower effective migration rate than indi-cated by the observed dispersal. We hypothesize that this phenomenon can be explained by exten-sive transient dispersal arising from drastically improved transportation networks and the RomanEmpire’s mobilization of people for trade, labor, and military. This work highlights the utility ofancient DNA in elucidating finer scale human population dynamics in recent history
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