This pseudorandom placement prevents clumping of the elements.
However, the fact that clumping is seen in a tiny population of pioneer species strongly indicates illumination as a major factor.
Clumping occurs when the observed probability is higher than the theoretical, over-dispersion when it is lower.
There was little or no clumping or rouleaux formation.
First, clumping might reflect the clustering of mice in favourable microsites.
Clumping occurred within 10 s for positive reactions.
While moving seeds both horizontally and vertically, thus reducing clumping of seeds, dung beetles make seeds less detectable to seed predators, therefore enhance seed survival.
The clumping process prior to shock formation minimises the solidification of the molten aluminium.
