The 82nd Annual Meeting of the American Association of Physical Anthropologists (2013)


Hierarchical analysis of population structure by isonymy in the city of Binghamton, NY

KEVIN E. SHERIDAN1,2,3 and SALVATORE P. INGRASSIA4.

1History, Philosophy and Social Sciences, Broome Community College, 2Public Archaeology Facility, Binghamton University, 3Department of Anthropology, Binghamton University, 4Department of Biological Sciences, Binghamton University

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Surname analysis affords biological anthropologists the ability to understand population dynamics analogous to genetic relationships. Recent developments in the field of surname genetics include the application of random isonymy calculation to multiple levels of population subdivisions within towns, villages and municipalities. Such methods are useful in examining the historical impact of immigration on population structure, since available census data typically includes country of origin as well as surname.

This study examines the surname structure present in the 1925 New York State Census of the city of Binghamton in Broome County, NY. Random isonymy (Ri) and consanguinity (Ri/4) via head of household were calculated for the entire city and for 13 wards within the city. These values were compared to the percentage of immigrant heads of household for each ward. The Ri value for the entire city of Binghamton was 0.00070111, and varied between a high of 0.00211528 in the 5th Ward and a low of 0.00042 in the 1st Ward. The 1st Ward had the highest percentage of immigrant heads of household (65%), well above the city average of 22%. However, in general there was a slight positive correlation between Ri and percentage of immigrant heads of household by ward. This project was conducted as part of the Binghamton Neighborhood Project and the Evolutionary Studies (EvoS) program of Binghamton University.

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