The scarcity of the resources of the small forest area could serve as an indication that the forest area has reached its carrying capacity. The carrying capacity of an ecosystem refers to the number of organisms that the ecosystem can comfortably support indefinitely.
Exceeding the carrying capacity will result in scarcity of resources
Maximum number of individuals of a species an environment can support is called its carrying capacity.
At carrying capacity the resources can become scared to limit the increase in the number of individuals. A population can increase rapidly up to carrying capacity due to the abundance of resource but at carrying capacity it stops.
At carrying capacity the net increase and decrease in the number of individuals in a species become negligible due to constant population size. A population cannot go beyond carrying capacity due to a lack of resources for their growth.
Therefore, if the resources of a small forest area have become scare than we can say that this area has reached its carrying capacity.
