Document Detail

Carbon and nitrogen stable isotopic signatures of human dietary change in the Georgia Bight.
MedLine Citation:
PMID:  1443094     Owner:  NLM     Status:  MEDLINE    
Measurement of carbon and nitrogen stable isotope ratios (delta 13C and delta 15N) in samples of human bone collagen (n = 93) from a temporal series of four prehistoric (early preagricultural, late preagricultural, early agricultural, late agricultural) and two historic (early contact, late contact) periods from the Georgia Bight, a continental embayment on the southeastern U.S. Atlantic coast, reveals a general temporal trend for less negative delta 13C values and less positive delta 15N values. This trend reflects a concomitant decrease in emphasis on marine resources and increased reliance on C4-based resources, especially maize. This dietary reorientation is most apparent for the early agricultural sample (AD 1150-1300), coinciding with the Mississippian fluorescence in the eastern United States. There is, however, a shift toward the use of C3 (non-maize) foods during the last prehistoric period (AD 1300-1450), which is likely related to environmental stress and social disruption. A heavier use of maize and terrestrial resources in general after the establishment of mission centers on barrier islands is indicated. A reduced dietary breadth during the mission period may have contributed to the extinction of these populations in the eighteenth century.
C S Larsen; M J Schoeninger; N J van der Merwe; K M Moore; J A Lee-Thorp
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  American journal of physical anthropology     Volume:  89     ISSN:  0002-9483     ISO Abbreviation:  Am. J. Phys. Anthropol.     Publication Date:  1992 Oct 
Date Detail:
Created Date:  1992-12-02     Completed Date:  1992-12-02     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0400654     Medline TA:  Am J Phys Anthropol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  197-214     Citation Subset:  IM    
Department of Sociology and Anthropology, Purdue University, West Lafayette, Indiana 47907.
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MeSH Terms
Bone and Bones / chemistry*
Carbon Isotopes
Collagen / chemistry*
Nitrogen Isotopes
Reg. No./Substance:
0/Carbon Isotopes; 0/Nitrogen Isotopes; 9007-34-5/Collagen

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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