Table 4.

Parameter estimates [95% confidence intervals] for δ¹⁵N and δ¹³C fitted trajectories during weaning (exponential decay between 6 and 60 months of age).

	δ15N		δ13C
δX∞ (‰)	7.67	[7.21–8.13]	−22.50	[−22.70–22.30]
Δ (‰)	3.31	[2.85–3.76]	0.81	[0.56–1.05]
k (%/month)	5.22	[3.05–7.39]	3.91	[2.20–5.62]

δX_∞, final isotopic steady state; Δ, weaning trophic level decrease; k, isotopic turnover rate.