Figure 1From: Temporal changes in mosquito abundance (Culex pipiens), avian malaria prevalence and lineage compositionSeasonal changes in the density of Culex pipiens egg rafts and in the rainfall, at Dorigny (Switzerland). Egg raft density was determined as the mean of monthly collected egg rafts per container and per trap date. Error bars are the standard errors of the means. Values between parentheses indicate mean monthly temperature. Egg raft density was significantly different between months not connected by the same letters (Tukey’s HSD test, P < 0.05).Back to article page