| 1. |
- Pires, Ana Elisabete, et al.
(författare)
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The curious case of the Mesolithic Iberian dogs : An archaeogenetic study
- 2019
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Ingår i: Journal of Archaeological Science. - : Elsevier BV. - 0305-4403 .- 1095-9238. ; 105, s. 116-129
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Tidskriftsartikel (refereegranskat)abstract
- We investigated the genetic composition of six Canis remains from western Iberia, directly radiocarbon dated to 7,903-7,570 years (cal BP). They were identified as dogs via their archaeological and depositional context, osteometry, and a high percentage of aquatic diet shared with humans. For comparison, genetic data were obtained from an additional 37 Iberian dog remains from the Neolithic to Late Antiquity, as well as two Palaeolithic and a Chalcolithic Canis identified as wolves. Previous data indicated that dog mtDNA haplogroup A (HgA) is prevalent in extant European dogs ( > 50%), in the Near East and Asia, but rare or absent ( < 10%) in European Canis older than 3,000 years (cal BP). We found a high frequency (83%) of dog HgA in Mesolithic Iberian dog remains. This is the first report of a high frequency of dog HgA in pre-Neolithic Europe. We show that, contrary to the current view, Canis with HgA did not necessarily arrive in Europe from East-Asia. This phylogeographical difference in HgA frequency demonstrates that genetic differentiation was high prior to, or as a consequence of, domestication which may be linked with pre-Neolithic local processes for Iberian wolf domestication. Our results emphasize that knowledge of both ancient wolves' and early dogs' genetic profiles from the European periphery should improve our understanding of the evolution of the European dog.
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| 2. |
- Ekblom, Anneli, 1969-
(författare)
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Changing Landscapes : An Environmental History of Chibuene, Southern Mozambique
- 2004
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- This thesis analyses the dynamics of environmental change and its embeddedness in the long term interactions of social history and rainfall variability through the building of an environmental history of the Chibuene locality, the coastal plain of southern Mozambique, 5 km south of the town Vilanculos, from 400 AD to present day. Land-use practices over time are discussed on the basis of vegetation and land-use history based pollen analysis, charcoal influx and diatom analysis. It is shown that the savanna vegetation is a long term feature of the Chibuene landscapes and that there have been several expansions of savannas and subsequent retractions of forests through time, linked primarily with rainfall variation. Written sources and archaeological material are drawn upon for a discussion on changing practices of environmental management and it is argued that as the Chibuene landscape is marked by a high degree of environmental insecurity, it is the competent management of resources that has enabled the continuous occupation of Chibuene from c. the 7th century AD, through management of natural resources, flexible farming practices and wide reaching social networks. The last two decades have seen a marked change in land-use patterns, reflected in a decrease in forests of the Chibuene area, the reasons for which are complex and needs to be further studied. Interviews with individual elders in the village community provide alternative ways of understanding environmental degradation as merely the loss of disappearance of forests, or the failure of crops due to droughts, but also as the erosion of local power, wars and social unrest. In a similar way, through a long-term perspective this study stresses that socio-political life, climatic variability and environmental dynamics are interlinked, highlighting the importance of the complimentarity of different forms of knowledge and ways of knowing the Chibuene landscape.
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