Composition of breeding sites according to environmental variables.

<p>Plots from the correspondence analysis of breeding survey sites showing composition of A) survey sites and B) associated 11 environmental variables from calling surveys. Plots C) and D) show the same information for oviposition surveys based on 10 environmental variables. Significant environmental variables according to the partial correspondence analysis are in bold in plots B and D. PC1 (silt) and PC2 (mud and leaf litter) refer to pool substrate.