Geographical and temporal variation in environmental conditions affects nestling growth but not immune function in a year-round breeding equatorial lark

Table 3 Logistic growth curve variables for growing nestlings of Red-capped Larks in South Kinangop, North Kinangop and Kedong, in addition to the overall curve based on the averages of the three locations

	A (S.E.)	t_i (S.E.)	K (S.E.)	95% C.I.	K_restricted (S.E.)	95% C.I.
Body mass (g)
South Kinangop	19.5 (2.66)	5.6 (1.00)	0.34 (0.065)	0.21–0.47	0.43 (0.108)	0.21–0.65
North Kinangop	19.7 (2.16)	5.2 (0.82)	0.36 (0.068)	0.21–0.49	0.55 (0.115)	0.29–0.80
Kedong	15.9 (0.38)	4.1 (0.15)	0.54 (0.031)	0.48–0.60	0.57 (0.034)	0.51–0.64
Overall	17.5 (0.59)	4.7 (0.23)	0.43 (0.029)	0.38–0.49
Wing length (mm)
South Kinangop	558.9 (3882.94)	23.7 (6.88)	0.19 (0.057)	0.07–0.30	0.21 (0.083)	0.04–0.37
North Kinangop	101.4 (65.63)	11.1 (4.49)	0.26 (0.065)	0.13–0.39	0.37 (0.087)	0.17–0.56
Kedong	53.2 (4.17)	6.4 (0.50)	0.39 (0.037)	0.32–0.46	0.39 (0.074)	0.24–0.54
Overall	72.4 (10.84)	8.8 (1.05)	0.28 (0.060)	0.14–0.41
Tarsus length (mm)
South Kinangop	29.0 (3.02)	5.1 (0.97)	0.25 (0.034)	0.18–0.31	0.30 (0.043)	0.21–0.38
North Kinangop	28.0 (2.32)	4.2 (0.75)	0.26 (0.038)	0.18–0.33	0.34 (0.052)	0.22–0.45
Kedong	24.3 (0.60)	2.9 (0.18)	0.37 (0.022)	0.32–0.41	0.36 (0.033)	0.29–0.42
Overall	25.5 (0.71)	3.5 (0.22)	0.30 (0.038)	0.21–0.38

The logistic function is W(t) = A/(1 + exp. (−K (t - t_i)), where W(t) is the weight at age t, A is the asymptote of the growth curve, K is the growth rate constant, and t_i is the inflexion point or age at maximal growth rate. K_restriced is the growth constant when restricting the data set to individuals with repeated measures on days 1, 4, 7 and 10 (Kedong n = 10 nestlings, North Kinangop n = 3 nestlings, South Kinangop n = 10 nestlings). Values in parentheses represent 1 SE. For K, the 95% confidence intervals are given. Hatching day is defined as day 1

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