The effect of growth on stable nitrogen isotope ratios in subadult bone collagen

2009 ◽  
pp. n/a-n/a ◽  
Author(s):  
A. L. Waters-Rist ◽  
M. A. Katzenberg
Keyword(s):  
Nitrogen Isotope ◽  
Isotope Ratios ◽  
Bone Collagen ◽  
Stable Nitrogen Isotope

How ‘Best’ to Determine Trophic Levels in Archaeological Agricultural Communities

2017 ◽  
Author(s):  
Linda Reynard
Keyword(s):  
Stable Isotope ◽  
Trophic Level ◽  
Nitrogen Isotope ◽  
Isotope Ratios ◽  
Trophic Levels ◽  
Bone Collagen ◽  
Carbon And Nitrogen ◽  
Agricultural Communities ◽  
Plant Remains ◽  
Isotope System

Stable isotope ratios of bone collagen have been used to determine trophic levels in diverse archaeological populations. The longest established and arguably most successful isotope system has been nitrogen, followed by carbon, and more recently hydrogen. These trophic level proxies rely on a predictable change in isotope ratio with each trophic level step; however, this requirement may not always be met, which can lead to difficulties in interpreting archaeological evidence. In agricultural communities, in particular, there are several possible complications to the interpretation of nitrogen and carbon isotopes. Recent approaches to overcome these limitations include better quantification and understanding of the influences on consumer isotope ratios; inclusion of evidence from plant remains; further investigation of apatite δ13C—collagen δ13C spacing in bones; measurement of carbon and nitrogen isotope ratios in individual amino acids, rather than collagen; and development of other stable isotope proxies for trophic level, such as hydrogen isotopes.

Influence of Forest Disturbance on Stable Nitrogen Isotope Ratios in Soil and Vegetation Profiles

2015 ◽  
Vol 79 (5) ◽  
pp. 1470-1481 ◽  
Author(s):  
Jennifer D. Knoepp ◽  
R. Scott Taylor ◽  
Lindsay R. Boring ◽  
Chelcy F. Miniat
Keyword(s):  
Forest Disturbance ◽  
Nitrogen Isotope ◽  
Isotope Ratios ◽  
Stable Nitrogen Isotope
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