Table/Figure – Pesticides Research No. 127 2009 – Buffer zones for biodiversity of plants and arthropods: is there a compromise on width?

Buffer zones for biodiversity of plants and arthropods: is there a compromise on width?

Model 15 Linear mixed model for analysing the accumulated number of species. The model assumes that the number of species depends on the area in a non-linear relation (Desmer and Cowling, 2004) where the α-parameters Estimate the number of species at an area of 1 (here the number of species in the distance closest to the hedge) while the β-parameters estimates the steepness of the increase in species with increased area. A β-value of 1 indicate a linear increase with are and a β-valueless than 1 indicate a decreasing increase as the area increases.