Costs and Benefits of Experimentally Induced Changes in the Allocation of Growth versus Immune Function under Differential Exposure to Ectoparasites
Figure 1
Physiological traits of control (C, open symbols) and methionine-supplemented (M, filled symbols) blue tit nestlings reared in deparasitized and parasitized nests; least square means ± SE.
Sample sizes (number of nestlings) are indicated on the graphs.