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Table 4 Summary statistics of a minimum adequate model for relationship between mean species fat score and mean species pectoral muscle score for 33 species including six Palearctic migrant, six resident, and 21 intra-African migrant bird species trapped between 2001 and 2013

From: Body reserves in intra-African migrants

Variable df F Estimate Error t p
Intercept 1 148.4 −3.42 2.13 −1.6 0.12
Mean pectoral muscle score 1 0.1 3.30 1.46 2.3 0.03
Migrants 2 13.1 3.69 2.14 1.7 0.10
Residents    3.30 2.14 1.5 0.14
Mean pectoral muscle score × migrants 2 3.5 −3.35 1.46 −2.3 0.03
Mean pectoral muscle score × residents    −3.14 1.46 −2.2 0.04
Residual 27    0.18   
  1. Status ‘Palearctic migrants’ is set as intercept in the model
  2. Significant p values are highlighted in bold