that's not a question
competition would be the first thing. Then as the limited resource diminishes members of the species would die or migrate to a new location, but if they all stayed there the species would eventually go extinct.
Such situations result in comoetion and struggle for existance .
competition among members of an ecosystem for resources and elimination of one or more species from an ecosystem
competition between species of Paramecium, causing him to devise the competitive exclusion theory
One species can get the resources they need during the day while the other species gets the resources they need at night.
It is not nessary but it posible.
Since food and other resources are limited, the members of a species must compete with each other to survive. Competition does not always involve direct physical fights between members of a species. Instead, competition is usually indirect.
Depending on which organism has the advantage that one will survive and the other species will die off and become extinct unless it finds a new niche.
I guess when they're running out of resources.
competition
All the resources of the internet including, but not limited to, websites
They are called limited because they take millions of years to form and most probably no-one has millions of years to live.