Ref ID:	34523
Ref Type:	Journal Article
Authors:	Schoeninger, Margaret J. DeNiro, Michael J. Tauber, Henrik
Title:	Stable nitrogen isotope ratios of bone collagen reflect marine and terrestrial components of prehistoric human diet
Date:	1983
Source:	Science
Abstract:	The δ15N values of bone collagen from Eskimos and from Northwest Coast Indians dependent on salmon fishing are about 10 per mil more positive than those from agriculturalists in historic times. Among prehistoric humans, two groups dependent on marine food sources show bone collagen δ15N values that are 4 to 6 per mil more positive than those from two agricultural groups. The nitrogen isotope ratios of bone collagen from prehistoric inhabitants of the Bahamas are anomalously low for reasons that relate to the biogeochemical cycle of nitrogen in coral reefs.
Date Created:	7/5/2001
Volume:	220
Number:	4604
Page Start:	1381
Page End:	1383