Dominancy and dominance Communities

Dominancy of a species is fp be considered as an expression of the success, the species has in the struggle for life, and as the concurrence may be taken as the essential plant sociological factor, the dominancy must, from a theoretical point of view, be of great importance for this branche of science. Now the case is that dominancy shows itself in different respects. In the first place the predominating, tallest plants determine for the greater part the appearance and the rough composition of the botanical landscape. In the second place, the often mosaiclike variance of dominants forms the more detailed structure of the plantcover. In the third place, the mass working of predominating species changes the original habitat in the long run more or less. Clear examples of this are the succession in silting up, in forming of dunes and of land by water- and marshplants. In the fourth place dominancy of a species indicates special characteristics of the habitat.