Ecological Archives E091-183-A2

Netta Klemola, Tommi Andersson, Kai Ruohomäki, and Tero Klemola. 2010. Experimental test of parasitism hypothesis for population cycles of a forest lepidopteran. Ecology 20:2507–2513.

Appendix B. Graphs providing abundance data for each replication unit of the parasitoid-exclusion experiment.

FigB1
 
   FIG. B1. Mean (+ SE) larval abundance index (number of larvae per 100 short shoots) in closed cages (black bars), open cages (gray bars) and control plots (striped bars) in 2006–2009. Eight permanently marked branches were counted in each cage or control plot. Note different scale for y-axis in panel D.


 

FigB2
 
   FIG. B2. Annual larval abundance index (number of larvae found per ten-minute search) in closed cages (black bars), open cages (gray bars), and control plots (striped bars) in 2006–2009. The dashed horizontal line gives the approximated larval abundance required for clearly visible defoliation of mountain birch forest, which can be considered as a lower limit for the outbreak density.

 

FigB3
 
   FIG. B3. Maximum adult abundance observed on one occasion in closed cages (black bars) and open cages (gray bars) in 2006–2009.

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