Appendix 2—table 8. Summary output for the random slope mixed-effect model for the number of strikes of the hammer stone used to crack and process oil-palm nuts over sampled field seasons.

1538 observations, 20 encounters, 5 individuals. Values rounded to 3.d.p.

glmer(Strikes ~Year-Scaled + (Year-Scaled |ID) + (1|Encounter), family = poisson)
Random Effect	Variance	SD
Encounter	0.157	0.397
ID (Intercept)	0.042	0.204
ID (Slope – Year-Scaled)	0.011	0.104
Fixed Effect	Estimate	SE	z value
(Intercept)	1.462	0.131	11.149
Scaled Year	0.079	0.051	1.545