Using Dietary Isotopes to Investigate Unidentified Skeletal Remains
Author Information
Author(s): Damon Tarrant, Laura Yazedjian, Joe Hepburn, Stephen Fonseca, Sahra Talamo, Michael Richards
Primary Institution: Simon Fraser University
Hypothesis
Stable isotope analysis can be effectively used to estimate whether unidentified human remains are archaeological or of forensic interest.
Conclusion
Isotope analysis can help determine if unidentified skeletal remains are modern or historical, allowing for more efficient death investigations.
Supporting Evidence
- Isotope analysis achieved 93% accuracy in predicting the temporal group of remains.
- Logistic regression models were developed to estimate whether remains are archaeological or contemporary.
- Radiocarbon dating confirmed the temporal classification of the remains.
Takeaway
Scientists can use special tests on bones to figure out if they are from recent deaths or old archaeological finds, which helps in solving cases faster.
Methodology
Carbon and nitrogen stable isotope analysis of human bone collagen combined with logistic regression modeling.
Potential Biases
Potential misclassification of archaeological cases as contemporary due to dietary similarities.
Limitations
The small number of individuals with an archaeological terrestrial diet may limit the model's accuracy.
Participant Demographics
Unidentified skeletal remains from British Columbia, Canada.
Statistical Information
P-Value
p<0.0001
Confidence Interval
95% CI: 81%–99%
Statistical Significance
p<0.0001
Digital Object Identifier (DOI)
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