In the graph , the population line levels off at around 1,500 and a suggestion that the carrying capacity of this environment is 1,500.
The carrying capacity is the maximum population size that can be supported by an environment on a sustained basis which is the point at which the population growth rate is zero.
The point at which the population line levels off is the carrying capacity and the point represents the maximum population size that the environment can support.
If we draw a horizontal line at the point where the population line levels off. The y-intercept of this horizontal line is the carrying capacity. From the graph , the horizontal line would intersect the y-axis at 1,500. Therefore, the carrying capacity of this environment is 1,500.