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C-13
2
CARBON ISOTOPES
2
CLIMATE-CHANGE
2
DELTA-C-13
N-15 INCORPORATION
2
NITROGEN
2
REPRODUCTION
2
TURNOVER
isotopic clock
2
mathematical model
2
sensitivity analysis
2
stable carbon isotope
2
timing of events
2
ANIMAL-TISSUES
1
Ecology
1
Environmental Sciences & Ecology
1
Life Sciences & Biomedicine
1
SHIFTS
1
STABLE-ISOTOPES
1
Science & Technology
1
TISSUES
1
Uncategorized
1
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