Aggregation patterns in hierarchy/proximity spaces

We address the relevancy of this approach with a simulation study where samples, formed by ordered subunits and units, are designed to exhibit the different types of structuring. The method is also illustrated with a case study (distribution of aphids on Citrus branches). It results from this application a decomposition of the complexity of pattern structuring and the evidence, for a single species in its natural environment, to develop diverse types of pattern structuring. Additionally to their direct implications, the results of the test battery may provide valuable preliminary hypotheses and could serve as a constraining context for the next step of modelling.