A species can only be found in aired that are within the minimum and maximum limits of its tolerance. These limits, therefore, give the geographic range or distribution of a species.
Different abiotic factors are often responsible for the geographic boundaries of a species. For example, a given plant species may be prevented from growing by low temperatures at its prevented boundary and low rainfall at its southern boundary. The main biomes of the world are mainly due to the tolerance range of various typed of plants for rainfall and temperature.