;"Mean angle (μ)";"Angular standard deviation";"Mean length of the vector (r)";"Rayleigh test (p)"
"Species richness – first year";24.313°;135.029°;0.062;0.669
"Species richness – second year";176.807°;134.372°;0.064;0.654
"Number of contact – first year";299.547°;144.949°;0.041;0.113
"Number of contact – second year";231.546°;125.382°;0.091;"< 0.001"