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- Fornander, Elin, et al.
(författare)
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Identifying mobility in populations with mixed marine/terrestrial diets : strontium isotope analysis of skeletal material from a passage grave in Resmo, Öland, Sweden
- 2015
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Ingår i: Forging identities. - Oxford : British Archaeological Reports. - 9781407314334 ; , s. 183-192, s. 183-192
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Bokkapitel (refereegranskat)abstract
- Strontium isotope analysis of skeletal material as a means to reconstruct prehistoric residential patterns has previously mainly been applied to populations with terrestrial diets. Here we present a model for populations with mixed marine/terrestrial diets, which is based on two-component mixing of strontium isotopes. Applying this model, we can estimate the original strontium isotope value of the terrestrial component of the diet. Accordingly it is possible to identify non-local individuals even if they had a mixed marine/terrestrial diet. The model is applied to tooth enamel samples representing nine individuals recovered from a passage grave in Resmo, on the island of Öland in the Baltic Sea, where at least five non-local individuals, representing at least two different geographical regions of origin, were identified. Non-local individuals were more frequent during the Bronze Age than during previous phases.
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| 7. |
- Skar, Birgitte, et al.
(författare)
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A submerged Mesolithic grave site reveals remains of the first Norwegian seal hunters
- 2016
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Ingår i: Marine Ventures. - Sheffield : Equinox Publishing. - 9781781791363 - 9781781793879 ; , s. 225-239
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Bokkapitel (refereegranskat)abstract
- Submerged Mesolithic settlement sites and graves have shown to provide repositories of well-preserved organic remains particularly in the Baltic Sea region. Although marine Stone Age archaeology In Norway is in its infancy it has already led to discoveries that shed new light on Middle Mesolithic livelihood and death, so far unknown from the terrestrial archaeological record. Stable carbon and nitrogen isotopes (δ13C, δ15N) analyzed from individuals from submerged burials on the Hummervikholmen site in southern Norway reveal that the deceased had lived off a diet consisting of more than 80% marine protein from the highest trophic level. The find circumstances of the three to five individuals, found west of Kristiansand, confirm the existence of a Middle Mesolithic burial tradition and indicate that this hunter-gatherer population in southern Norway possessed boat technology. The finds highlight a period during the Middle Mesolithic of Norway where cultural change so far has only been indicated in the lithic technology.
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| 8. |
- Webb, Emily C., et al.
(författare)
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Compound-specific amino acid isotopic proxies for detecting freshwater resource consumption
- 2015
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Ingår i: Journal of Archaeological Science. - : Elsevier BV. - 0305-4403 .- 1095-9238. ; 63, s. 104-114
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Tidskriftsartikel (refereegranskat)abstract
- Of central importance to palaeodietary reconstruction is a clear understanding of relative contributions of different terrestrial (i.e., C3 vs. C4 plants) and aquatic (i.e., freshwater vs. marine) resources to human diet. There are, however, significant limitations associated with the ability to reconstruct palaeodiet using bulk collagen stable isotope compositions in regions where diverse dietary resources are available. Recent research has determined that carbon-isotope analysis of individual amino acids has considerable potential to elucidate dietary protein source where bulk isotopic compositions cannot. Using δ13CAA values for human and faunal remains from Zvejnieki, Latvia (8th – 3rd millennia BCE), we test several isotopic proxies focused on distinguishing freshwater protein consumption from both plant-derived and marine protein consumption. We determined that the Δ13CGly-Phe and Δ13CVal-Phe proxies can effectively discriminate between terrestrial and aquatic resource consumption, and the relationship between essential δ13CAA values and the Δ13CGly-Phe and Δ13CVal-Phe proxies can differentiate among the four protein consumption groups tested here. Compound-specific amino acid carbon-isotope dietary proxies thus enable an enhanced understanding of diet and resource exploitation in the past, and can elucidate complex dietary behaviour.
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| 9. |
- Webb, Emily C., et al.
(författare)
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Compound-specific amino acid isotopic proxies for distinguishing between terrestrial and aquatic resource consumption
- 2018
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Ingår i: Archaeological and Anthropological Sciences. - : Springer Science and Business Media LLC. - 1866-9557 .- 1866-9565. ; 10:1, s. 1-18
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Tidskriftsartikel (refereegranskat)abstract
- Compound-specific amino acid carbon-isotope compositions have shown particular promise for elucidating dietary behaviors in complex environmental contexts, and may also be able to mitigate the effect of many of the limitations inherent to palaeodietary reconstructions. Here, we investigate the efficacy of compound-specific amino acid isotopic proxies in characterizing the consumption of different dietary protein sources using amino acid carbon-isotope compositions for humans and fauna from Rössberga (Early to Middle Neolithic), Köpingsvik (Mesolithic and Middle Neolithic), and Visby (Medieval Period), Sweden. We also assess the explanatory capabilities of an isotopic mixing model when used with essential amino acid carbon-isotope compositions of humans and local fauna. All three isotopic proxies distinguished among humans from the three sites consistently and informatively, and were able to enhance the broad interpretations made using bulk isotopic compositions. The mixing model palaeodietary reconstruction revealed considerable diversity in relative protein source contributions among individuals at both Köpingsvik and Visby. Comparing the mixing model for bulk carbon- and nitrogen-isotope compositions to the model for essential amino acid isotopic compositions further demonstrated the likelihood of underestimation and overestimation of marine protein consumption for both aquatic-dominant and mixed marine-terrestrial diets when using bulk isotopic compositions.
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