We can observe that the shuffled process causes a reduction of one-dimensional and disjoint burst types; in particular, we see a significant decrease in one-dimensional bursts. In fact, about 50% of bursts are onedimensional or disjoint, unlike what we would observe if the choice were obtained randomly. Moreover, the overall degree of interleaving is very low. In Figure 3 we report the histogram of the values of the interleaving degree computed on the interleaved burst type only. The results show a low coefficient value, more than 80% are below or equal to 0.5, accounting for a very low level of interleaving attitude. The aforementioned arguments enforce the hypothesis that the execution order of phone activities is mainly affected by the need to minimize the switching overhead between different communication media. People experience a certain inertia which makes them to lean in single dimension and to persist in there up to completion of the planned burst activities. These results JFD00244 magnify the burst nature of human communication and highlight the extent to which the multidimensional approach enriches the big picture of mobile phone communication. The early stages of speciation often begin with divergent selection for locally adapted traits. This can occur in continuously distributed populations connected by gene flow although it is probably more prevailing in K 858 isolated allopatric populations. The degree of divergence reflects the balance between the selection for an adaptive trait, and gene flow from nearby populations. In the early stages of population divergence populations share most of the ancestral genetic variation. Genes underlying traits under divergent selection are expected to diverge faster, whereas changes in neutral genetic variation is a slow process in larger populations as governed by genetic drift. Hence, neutral genetic markers often do not reveal population structure in recently diverged populations because of insufficient time for drift to result in divergence or because a balance between gene flow and genetic drift tends to homogenize population differences. Divergence can result from selection on adaptive traits in contrasting phenotypes. For example, divergent selection in the spider, Agelenopsis aperta, has resulted in both desert and riparian habitat related phenotypes. In other examples, specialization on either alfalfa or red clover by pea aphids has resulted in two divergent ecotypes.