Can persist without any immigration, however, its numbers depend on immigration. If there is no immigration, then the abundance is much lower than in the presence of immigration Dependent populations . Cannot persist without immigration, however, organisms can reproduce there. Reproduction is not sufficient to sustain population numbers. Do not reproduce at all.
All organisms are immigrants.
Temporary populations . In contrast to the first 4 types, these populations always get extinct after a while. Re-colonization is a rare event and thus, for some period of time the population is absent in the area. Temporary populations may reproduce however it is not sufficient. These are populations that consist of individuals in specific stages.