Community structure of insect herbivores on different genotypes of silver birch ( Betula pendula )

Columns containing species counts are named as in Table 1 in the associated article. Site: 1=Kuikanniitty, 2=Parikkala. 2003_Additional_KuikanniittyData: Abundances of 27 individual insect species on 22 birch genotypes planted in 6 blocks in Kuikanniitty. Each block has two saplings from each genotype: one that was sprayed with pyrethrin in 2002 and one non-sprayed control.

Data also contain the columns for species richness and total mean abundance. Columns containing species counts are named as in Table 1 in the associated article. Insecticide: 0=control, i.e. natural herbivory, 1=herbivores removed by pyrethrin sprayings in 2002.

Site: 1=Kuikanniitty.