S
Sean S. Downey
Researcher at Ohio State University
Publications - 33
Citations - 1544
Sean S. Downey is an academic researcher from Ohio State University. The author has contributed to research in topics: Population & Agriculture. The author has an hindex of 15, co-authored 30 publications receiving 1314 citations. Previous affiliations of Sean S. Downey include University of Maryland, College Park & University College London.
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Journal ArticleDOI
Regional population collapse followed initial agriculture booms in mid-Holocene Europe
Stephen Shennan,Sean S. Downey,Sean S. Downey,Adrian Timpson,Kevan Edinborough,Sue Colledge,Tim Kerig,Katie Manning,Mark G. Thomas +8 more
TL;DR: It is shown that the introduction of agriculture into Europe was followed by a boom-and-bust pattern in the density of regional populations, and the results suggest that the demographic patterns may have arisen from endogenous causes, although this remains speculative.
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Major East–West Division Underlies Y Chromosome Stratification across Indonesia
Tatiana M. Karafet,Brian Hallmark,Murray P. Cox,Herawati Sudoyo,Sean S. Downey,J. Stephen Lansing,J. Stephen Lansing,Michael F. Hammer +7 more
TL;DR: A four-phase colonization model is put forward in which Paleolithic migrations of hunter-gatherers shape the primary structure of current Indonesian Y chromosome diversity, and Neolithic incursions make only a minor impact on the paternal gene pool, despite the large cultural impact of the Austronesian expansion.
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The impact of the Neolithic agricultural transition in Britain: a comparison of pollen-based land-cover and archaeological 14C date-inferred population change
TL;DR: In this article, the authors compare the extent to which these two independent sources show common trends and timing in terms of demographic and environmental change across Britain during the millennia prior to and after the appearance of the first farming communities.
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Coevolution of languages and genes on the island of Sumba, eastern Indonesia.
J. Stephen Lansing,Murray P. Cox,Sean S. Downey,Brandon Michael Gabler,Brian Hallmark,Tatiana M. Karafet,Peter Norquest,John W. Schoenfelder,John W. Schoenfelder,Herawati Sudoyo,Joseph C. Watkins,Michael F. Hammer +11 more
TL;DR: A model to explain linguistic and demographic coevolution at fine spatial and temporal scales is proposed and a positive correlation was found between the percentage of Y chromosome lineages that derive from Austronesian (as opposed to aboriginal) ancestors and the retention of PAn cognates.
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The Neolithic Demographic Transition in Europe: Correlation with Juvenility Index Supports Interpretation of the Summed Calibrated Radiocarbon Date Probability Distribution (SCDPD) as a Valid Demographic Proxy
TL;DR: The largest analysis of European cemeteries to date with an independent line of evidence, the summed calibrated date probability distribution of radiocarbon dates (SCDPD) from archaeological sites supports the unique contribution of SCDPDs as a valid demographic proxy for the demographic patterns associated with early agriculture.