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. 2018 Mar 14;9(1):33. doi: 10.3390/insects9010033

Table 3.

Results of the Generalized Additive Model (GAM) analysing the abundance of spider guilds in 21 native shrubs with different abundance of pests and sampling period as covariates.

Model Types of Variables Variables Estimate SE χ2 df p Value
Hunter spiders Numerical Whitefly abundance 0.015 0.005 18.771 1 <0.001
Numerical Thrips abundance −0.005 0.004 7.943 1 <0.01
Categorical Plant species 193.792 20 <0.001
Smoothed Month of sampling 113.1 8.35 <0.001
Web-weavers Numerical Whitefly abundance 0.014 0.007 4.0544 1 <0.05
Numerical Thrips abundance −0.004 0.004 0.782 1 0.3765
Categorical Plant species 164.204 20 <0.001
Smoothed Month of sampling 336 8.89 <0.001