Distribution pattern

General can be divided into the rules of distribution, concentration distribution and random distribution type. Each individual in the population if their independent survival without contact with other individuals, namely random distribution, this distribution is consistent in the environmental conditions, and there is no cluster under the conditions of existence; but few of the population is randomly distributed in the forest on the ground; some invertebrate animal, especially spiders that showed random distribution; living in central Newfoundland moose, also in winter groups randomly distributed, but in their cluster, it is no longer a random distribution. Concentration distribution is irregular, probably into homogeneous groups in changing the regular distribution or random distribution. When the animal can occupy space than it needs, their distribution is less obstacles, usually with regular distribution; distribution rule is the existence of internal struggle between populations, each individual competition, the existence of self survival and maintain a small circle, small circle between not near distance, so it is also uniform. Regularity.