| 1. |
- Hedenstierna-Jonson, Charlotte, 1971-, et al.
(author)
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Viking Mobility in the Baltic Sea Region
- 2020
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In: Viking Encounters. - Aarhus : Aarhus University Press. - 978 87 7184 265 4 ; , s. 57-66
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Book chapter (peer-reviewed)abstract
- Tough mobility and migration could be regarded as diagnostic features of the Viking Age, it is not possible to generalize and treat the Viking World as a homogenous society. Patterns of mobility and migration were linked to social structures and contexts. Studying the composition of the material culture within a site or individual context has been the prevailing method within archaeology to approach issues of mobility. Although this approach has acknowledged restrictions, it has been the method at hand. However, migration and mobility are not necessarily reflected in the material culture, meaning other approaches are called for. The first question to ask is: what variations in mobility patterns between urban and rural contexts are there, and are there indications of significant differences between various geographical regions? Even between sites characterized as trading posts (i.e. not rural), with similar material evidence of long-distance trade and advanced crafts, we might have significant differences, relating to the seasonal or permanent character of the site. In the following paper, we present the results from strontium isotope analyses on archaeological materials from a number of Viking-Age sites within present-day Sweden. The results of the analyses conducted within the ATLAS project will be compared to other isotope studies from Scandinavia, and discussed in relation to local, regional and supra-regional contexts. On a more local level, the possible cultural influence of migrants is investigated.
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| 2. |
- Hedenstierna-Jonson, Charlotte, et al.
(author)
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Viking Mobility in the Baltic Sea Region
- 2020
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In: Viking encounters. - Aarhus : Aarhus Universitetsforlag. - 9788771842654 ; , s. 61-70
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Book chapter (peer-reviewed)
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| 3. |
- Ingvarsson, Anne, et al.
(author)
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Bioarchaeological field analysis of human remains from the mass graves at Phaleron, Greece
- 2019
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In: Opuscula. - : Editorial Committee of the Swedish Institutes at Athens and Rome (ECSI). - 2000-0898. ; 12, s. 7-158
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Journal article (peer-reviewed)abstract
- In 2016, archaeological excavations undertaken by the Ephorate of Antiquities of West Attica, Piraeus and Islands 3.8 km south-west of Athens, Greece, revealed mass burials of 79 skeletons in three rows. The burials are dated to the 7th century BC. The anthropological field documentation was undertaken by The Swedish Institute of Athens, and followed established bioarchaeological protocols regarding taphonomic processes, age, sex, injuries, and pathological changes. The descriptions and interpretations should be regarded as preliminary field observations. A majority of the individuals were young adult or juvenile males, most of them without signs of active disease and with a generally good oral health status, but with corroded iron shackles around their wrists. Cause of death could not be determined although extensive and likely perimortem fractures were observed. The only object related to injury and/or possible cause of death was an arrowhead found in the chest of one of the skeletons. Why and where the individuals were killed is a matter of conjecture; the observations from the field documentation neither validate, nor disprove the hypothesis that these individuals were captives and victims of the socalled "Cylonian conspiracy" in the 7th century BC.
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| 4. |
- Kjellström, Anna, et al.
(author)
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Dietary patterns and social structures in medieval Sigtuna, Sweden, as reflected in stable isotope values in human skeletal remains
- 2009
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In: Journal of Archaeological Science. - : Elsevier BV. - 0305-4403 .- 1095-9238. ; 36:12, s. 2689-2699
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Journal article (peer-reviewed)abstract
- Stable isotopes (delta C-13, delta N-15) have been studied in human burials from the medieval town Sigtuna in Sweden. Dietary patterns of 80 adult individuals were analyzed on three cemeteries representing the phases of establishment, prosperity and decline of the town. All analyzed individuals were radiocarbon dated. One of the cemeteries, Church 1, represents a population of higher social status than those at the other two cemeteries. The delta C-13 values are homogenous and showed that the protein intake was mainly of terrestrial origin in the whole population. delta N-15 values varies more and they may indicate a higher input of vegetables in the diet at one of the cemeteries, the Nunnan block. Already in the initial phases of Sigtuna a social hierarchy had been established which is reflected in dietary patterns. Apparently more animal protein was consumed among the high status population of the town. Furthermore, differences in dietary patterns between the sexes were noted. In all phases the females show more clustered values indicating a more homogeneous diet than that of the males.
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| 5. |
- Linderholm, Anna, et al.
(author)
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Stable isotope analysis of a medieval skeletal sample indicative of systemic disease from Sigtuna Sweden
- 2011
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In: Journal of Archaeological Science. - : Elsevier BV. - 0305-4403 .- 1095-9238. ; 38:4, s. 925-933
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Journal article (peer-reviewed)abstract
- In Sigtuna, Sweden, several medieval cemeteries have been excavated, from which approximately 800 skeletons have been excavated and analysed. Archaeological finds and anthropological analyses have exposed social differences between the cemeteries. Stable isotope analyses have shown that the inhabitants of the town consumed a mixed diet. Significant differences in dietary patterns between the cemeteries may be related to social stratification. In the outskirts of a churchyard excavated in 2006, bone changes showing systemic inflammatory disease indicative of leprosy were observed in six individuals. The burial location suggests that the affected belonged to a lower social stratum. Bone samples were taken from these six individuals, 19 other human skeletons and five animals from the same cemetery for analysis of the stable isotope composition of carbon (C), nitrogen (N) and sulphur (S). The results showed no significant differences in delta(13)C and delta(15)N values between the groups, i.e. the seemingly healthy humans and the humans affected by severe inflammatory disease appear to have had similar diets. Nor was a significant difference observed in delta(34)S data between the six affected individuals and the rest of the sample, implying that no difference in origins could be observed between the two groups studied. However, a comparison between the present study and the previous analysis resulted in significant differences in carbon values. Based on the results obtained in this investigation it is suggested that if a dietary difference existed between people in the outskirts of a cemetery (for example those suffering from leprosy) and people buried in higher ranked regions, it was not a difference in food source but rather in other parameters. Instead dietary differences and possibly social variations are demonstrated between cemeteries. The results from the present study highlight the hierarchical arrangements of social classes in the early medieval society.
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| 6. |
- Alfieri, James M., et al.
(author)
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Genomic investigation refutes record of most diverged avian hybrid
- 2023
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In: Ecology and Evolution. - : Wiley. - 2045-7758. ; 13:1
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Journal article (peer-reviewed)abstract
- The most diverged avian hybrid that has been documented (Numida meleagris × Penelope superciliaris) was reported in 1957. This identification has yet to be confirmed, and like most contemporary studies of hybridization, the identification was based on phenotype, which can be misleading. In this study, we sequenced the specimen in question and performed analyses to validate the specimen's parentage. We extracted DNA from the specimen in a dedicated ancient DNA facility and performed whole-genome short-read sequencing. We used BLAST to find Galliformes sequences similar to the hybrid specimen reads. We found that the proportion of BLAST hits mapped overwhelmingly to two species, N. meleagris and Gallus gallus. Additionally, we constructed phylogenies using avian orthologs and parsed the species placed as sister to the hybrid. Again, the hybrid specimen was placed as a sister to N. meleagris and G. gallus. Despite not being a hybrid between N. meleagris and P. superciliaris, the hybrid still represents the most diverged avian hybrid confirmed with genetic data. In addition to correcting the “record” of the most diverged avian hybrid, these findings support recent assertions that morphological and behavioral-based identifications of avian hybrids can be error-prone. Consequently, this study serves as a cautionary tale to researchers of hybridization.
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| 7. |
- Ameen, Carly, et al.
(author)
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Specialized sledge dogs accompanied Inuit dispersal across the North American Arctic
- 2019
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In: Proceedings of the Royal Society of London. Biological Sciences. - : The Royal Society. - 0962-8452 .- 1471-2954. ; 286:1916
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Journal article (peer-reviewed)abstract
- Domestic dogs have been central to life in the North American Arctic for millennia. The ancestors of the Inuit were the first to introduce the widespread usage of dog sledge transportation technology to the Americas, but whether the Inuit adopted local Palaeo-Inuit dogs or introduced a new dog population to the region remains unknown. To test these hypotheses, we generated mitochondrial DNA and geometric morphometric data of skull and dental elements from a total of 922 North American Arctic dogs and wolves spanning over 4500 years. Our analyses revealed that dogs from Inuit sites dating from 2000 BP possess morphological and genetic signatures that distinguish them from earlier Palaeo-Inuit dogs, and identified a novel mitochondrial clade in eastern Siberia and Alaska. The genetic legacy of these Inuit dogs survives today in modern Arctic sledge dogs despite phenotypic differences between archaeological and modern Arctic dogs. Together, our data reveal that Inuit dogs derive from a secondary pre-contact migration of dogs distinct from Palaeo-Inuit dogs, and probably aided the Inuit expansion across the North American Arctic beginning around 1000 BP.
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| 8. |
- Aurell, Emelie, et al.
(author)
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Mikroplaster : Redovisning av regeringsuppdrag om källor till mikroplaster och förslag på åtgärder för minskade utsläpp i Sverige
- 2017
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Reports (other academic/artistic)abstract
- I augusti 2015 fick Naturvårdsverket i uppdrag från regeringen att identifiera viktigare källor i Sverige till utsläpp av mikroplaster till havet och verka för att reducera utsläppen från dessa källor. I den här rapporten redovisar Naturvårdsverket uppdraget. Vi presenterar resultaten från den första, övergripande kartläggningen av källor till och spridning av mikroplaster i Sverige, en bedömning av vilka av de kartlagda källorna som primärt bör åtgärdas samt vilka steg som behöver tas för att förebygga utsläpp och minska spridning av mikroplaster till hav, sjöar och vattendrag från dessa källor.Förekomsten av mikroplast i den marina miljön har uppmärksammats allt mer under senare år, inte minst på global nivå. Mikroplast är ett samlingsnamn för små, små plastfragment (1 nm till 5 mm). De mikroplaster som hittats i världshaven, men även i sötvattensystem, har olika ursprung. Mikroplast kan bildas oavsiktligt när plastföremål slits och plastpartiklar frigörs, eller när vi inte återanvänder, återvinner eller slänger plastmaterial på rätt sätt utan plasten blir skräp som succesivt bryts ned till mindre och mindre bitar i naturen. Det finns också plast som från början tillverkas som små pellets eller korn.Utgångspunkten för arbetet har varit miljökvalitetsmålen Hav i balans samt levande kust och Levande sjöar och vattendrag samt målet om Giftfri miljö. Reduceradeutsläpp av mikroplaster till hav, sjöar och vattendrag bidrar till att nå dessa mål.Uppdraget har genomförts av Naturvårdsverket i samarbete med Havs- och vattenmyndigheten, andra berörda myndigheter, samt med deltagande av berörda organisationer och andra intressenter mellan augusti 2015 och maj 2017. Slutsatserna är Naturvårdsverkets egna.
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| 9. |
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| 10. |
- Bergström, Anders, et al.
(author)
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Grey wolf genomic history reveals a dual ancestry of dogs
- 2022
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In: Nature. - : Springer Science and Business Media LLC. - 0028-0836 .- 1476-4687. ; 607:7918, s. 313-320
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Journal article (peer-reviewed)abstract
- The grey wolf (Canis lupus) was the first species to give rise to a domestic population, and they remained widespread throughout the last Ice Age when many other large mammal species went extinct. Little is known, however, about the history and possible extinction of past wolf populations or when and where the wolf progenitors of the present-day dog lineage (Canis familiaris) lived. Here we analysed 72 ancient wolf genomes spanning the last 100,000 years from Europe, Siberia and North America. We found that wolf populations were highly connected throughout the Late Pleistocene, with levels of differentiation an order of magnitude lower than they are today. This population connectivity allowed us to detect natural selection across the time series, including rapid fixation of mutations in the gene IFT88 40,000–30,000 years ago. We show that dogs are overall more closely related to ancient wolves from eastern Eurasia than to those from western Eurasia, suggesting a domestication process in the east. However, we also found that dogs in the Near East and Africa derive up to half of their ancestry from a distinct population related to modern southwest Eurasian wolves, reflecting either an independent domestication process or admixture from local wolves. None of the analysed ancient wolf genomes is a direct match for either of these dog ancestries, meaning that the exact progenitor populations remain to be located.
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