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

2002_Data: Abundances of 23 individual insect species on 22 birch genotypes planted in 6 blocks in both Kuikanniitty and Parikkala study sites in 2002. Data also contain the columns for species richness and total mean abundance. Those four species that were not surveyed in Parikkala 2002 were excluded from Kuikanniitty species richness and total mean abundance calculations to better enable site comparisons. Columns containing species counts are named as in Table 1 in the associated article. Site: 1=Kuikanniitty, 2=Parikkala
2003_Data: Abundances of 27 individual insect species on 22 birch genotypes planted in 6 blocks in both Kuikanniitty and Parikkala study sites in 2003. 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. 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.

2002年数据集：记录了在2002年于库伊卡尼伊蒂和帕里卡拉研究地点种植的22种白桦树基因型上发现的23种昆虫个体的丰度。数据中还包含了物种丰富度和总平均丰度列。为了便于站点比较，排除了在帕里卡拉2002年未进行调查的四种物种。包含物种计数的列名称参见相关文章中的表1。研究地点：1=库伊卡尼伊蒂，2=帕里卡拉。
2003年数据集：记录了在2003年于库伊卡尼伊蒂和帕里卡拉研究地点种植的22种白桦树基因型上发现的27种昆虫个体的丰度。数据中还包含了物种丰富度和总平均丰度列。包含物种计数的列名称参见相关文章中的表1。研究地点：1=库伊卡尼伊蒂，2=帕里卡拉。
2003年库伊卡尼伊蒂附加数据集：记录了在库伊卡尼伊蒂种植的22种白桦树基因型上发现的27种昆虫个体的丰度。每个区块包含每个基因型的两棵幼苗：一棵在2002年喷洒了除虫菊酯，另一棵为未喷洒的对照组。数据中还包含了物种丰富度和总平均丰度列。包含物种计数的列名称参见相关文章中的表1。农药：0=对照组，即自然食草，1=2002年通过除虫菊酯喷洒去除的食草动物。研究地点：1=库伊卡尼伊蒂。