ABSTRACT
Necrophoresis by ant workers can lead to the formation of cemeteries. This chapter focuses on the spatial distribution of clusters in the author's proposed model and demonstrates that cluster size follows a distinctive distribution. It defines a cluster as a pile if it consisted of more than five corpses. Agents in the proposed models were allowed to detect only one lattice at each time. Piles on different lattices were dealt with separately. In the early stages, many piles are constructed and these disappear as time evolves. Using a simpler model just like a threshold model does not necessarily produce a few piles with large size. This is perhaps because piles would grow in various locations if the probability of drop is fixed to a certain value. To this end, ants might make a decision using completely different information concurrently with a simple threshold rule. Such an awkward manner can bridge a gap between an individual behaviour and an aggregate behaviour.
