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Table 2 Univariate models showing fixed effect estimates for nestling house wren traits

From: Genetic and environmental variation in condition, cutaneous immunity, and haematocrit in house wrens

Trait/Effect Level Coefficient ± SE DF num DF den F P
TARSUS       
μ   18.33 ± 0.094 1 177.5 83199 <0.001
Year1 2005 −0.066 ± 0.079 2 233.2 2.41 0.093
  2006 0.0728 ± 0.075     
Sex Male 0.275 ± 0.074 2 637.5 22.83 <0.001
  Female 0.031 ± 0.075     
HAEMATOCRIT       
μ   42.06 ± 0.98 1 319.5 5003 <0.001
Year1 2005 −1.33 ± 0.87 2 394.3 1.18 0.310
  2006 −1.01 ± 0.87     
Sex Male 0.517 ± 0.636 2 1308 0.59 0.550
  Female 0.311 ± 0.635     
PHA       
μ   0.785 ± 0.040 1 320.1 491.5 <0.001
Year1 2005 −0.327 ± 0.035 2 386.6 49.95 <0.001
  2006 −0.106 ± 0.032     
Sex Male −0.047 ± 0.031 2 1340 1.32 0.270
  Female −0.039 ± 0.031     
MASS (“Condition”)       
μ   9.81 ± 0.105 1 316.9 17361 <0.001
Year1 2005 −0.309 ± 0.088 2 431.8 8.46 <0.001
  2006 −0.346 ± 0.088     
Sex Male 0.225 + 0.079 2 1505 5.53 0.004
  Female 0.157 + 0.079     
Tarsus   0.519 + 0.034 1 2101 235.7 <0.001
Tarsus2   −0.149 + 0.027 1 2100 31.37 <0.001
Tarsus3   −0.027 + 0.004 1 2035 54.2 <0.001
  1. 1Year effects for 2005 and 2006 are shown relative to the predicted mean in 2004.
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