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Table 4 Relationship between parental feeding rate, brood size, nestling age and nest-beginning time for the Isabelline Shrike

From: Male parent birds exert more effort to reproduce in two desert passerines

Model Fixed effect Β  ±  SE t P 95% CI
Female feeding rate Brood size 1.108  ±  0.145 7.639 < 0.001 0.821‒1.394
Nestling age 0.481  ±  0.050 9.552 < 0.001 0.381‒0.580
Nest-beginning time 0.012  ±  0.015 0.813 0.418 − 0.017 to 0.042
Male feeding rate Brood size 1.174  ±  0.158 7.412 < 0.001 0.861‒1.487
Nestling age − 0.073  ±  0.069 − 2.493 0.014 − 0.310 to − 0.036)
Nest-beginning time − 0.047  ±  0.014 − 3.343 < 0.001 − 0.074 to − 0.019