Flora and Fauna Changes During Conversion from Conventional to Organic Farming
Table 4.3.
Summary of the analyses of covariance of Skylark occurrence 2000-2001 in relation to
vegetation biomass. For each of the two dependent variables (mean and latemean), the
percentage of variation explained by the reduced model is given in brackets. P values
of significant factors are shown.
Factor
Class / continuous
Mean (90%)
Latemean (74%)
Crop
Class variable
0.017
Year
Class variable
Crop×Year
Class variable
Cereal
Covariate
< 0.0001
0.0003
Cereal×Crop
Covariate
|