Table 2. Results of the linear regression model (daily food uptake), fractional logit regression model (gut-body weight ratio) and Cox proportional hazard model (survival).

Coefficients	Estimate	St. Error	Pr(>|t|)
Panel I: Daily food uptake
Intercept	0.1162	0.0096	<0.001
Melezitose	0.0027	0.0029	0.947
Melezitose day +10	0.0184	0.0061	0.003
2018	0.0109	0.0030	<0.001
2019	0.0151	0.0040	<0.001
Days	-0.0018	0.0003	<0.001
Bees_alive	-0.0017	0.0001	<0.001
Panel II: Gut-body weight ratio
Intercept	-0.0520	0.1099	0.636
Melezitose	0.0866	0.0154	<0.001
Melezitose day +10	0.0550	0.0260	0.034
2018	0.0157	0.0136	0.248
2019	0.0028	0.0142	0.842
Days	0.0012	0.0016	0.440
Panel III: Survival
Melezitose	0.9319	0.0555	<0.001
Melezitose day +10	2.2514	0.1073	<0.001
2018	-0.1144	0.0584	0.050
2019	-0.8595	0.0771	<0.001

The multivariate R² for the linear regression in Panel I is 0.253 and the F-test for overall significance yields F(6.893) = 50.4 (p < 0.001). For the fractional logit regression in Panel II, we report average partial effects. The multivariate R² is 0.174 based on 330 observations. The log-rank test (4.1740) yields 628.1 (p < 0.001).