When the members of a population reproduce at a constant rate and overshoot the carrying capacity of their environment, it is called growth.

Exponential growth

Explanation:

The carrying capacity can be defined as the maximum number of individuals of the population that an ecosystem can support on the basis of availability of resources such as food, water, habitat and other needs. The exponential growth can be define as the per capita increase in growth of the population of a species in a concerned location and in a considered time duration when the resources availability is surplus. The exponential growth exceeds the carrying capacity of the ecosystem or other region.    

Therefore, on the basis of the above explanation When the members of a population reproduce at a constant rate and overshoot the carrying capacity of their environment, it is called exponential growth.  

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