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71.
Archaeological fish bones reveal increases in marine fish utilisation in Northern and Western Europe beginning in the 10th and 11th centuries AD. We use stable isotope signatures from 300 archaeological cod (Gadus morhua) bones to determine whether this sea fishing revolution resulted from increased local fishing or the introduction of preserved fish transported from distant waters such as Arctic Norway, Iceland and/or the Northern Isles of Scotland (Orkney and Shetland). Results from 12 settlements in England and Flanders (Belgium) indicate that catches were initially local. Between the 9th and 12th centuries most bones represented fish from the southern North Sea. Conversely, by the 13th to 14th centuries demand was increasingly met through long distance transport – signalling the onset of the globalisation of commercial fisheries and suggesting that cities such as London quickly outgrew the capacity of local fish supplies.  相似文献   
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A World Bank demographer reviews recent population changes in Russia, relating trends in fertility, mortality, natural increase, and migration to the social and economic effects of the transition to a market economy. Significant trends (a precipitous drop in fertility, an extraordinary increase in mortality—especially among middle-aged males—and a consequent decline in natural increase) are identified and analyzed, with dislocations caused by the uncertainties of economic and political transition suggested as the principal causes. The effect of net in-migration to Russia (probably mainly ethnic Russians from the Near Abroad countries) in partially offsetting the natural population decrease is examined as well. 5 tables, 16 references.  相似文献   
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Edward Lhwyd's ambitious Archaeologia Britannica project, for which he undertook an extensive tour of the Celtic-speaking regions of Britain and Brittany from 1697 to 1701, was to include “A Comparison of the Customes and Traditions of the Britains with those of other Nations.” Though this part of the Archaeologia was not written, some of the data that were collected survive. Lhwyd's comments on the material reveal that as an antiquary his primary interests were historical and lay in customs and rites as survivals, rather than in narrative; as an experimental scientist he was consistently sceptical of traditional or popular explanations of phenomena. Edward Lhwyd was the first systematically to record Welsh folklore, and the geographical breadth of his collecting, his structured approach, and his critical responses make him the foremost pioneer in the field.  相似文献   
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