Closed community

[1][2] Frederic Clements was an American ecologist and pioneer who studied vegetation formation and development, he created the idea that plants are supposed to birth, grow/mature, and decay.

The community (fauna or human) is always constant and thriving, even if there were to be a catastrophic event, an individual or small group can manage to survive and regrow or rebuild in the same area they originated or relocate elsewhere and succeed.

The concept of many plants and animals coexisting together, having an ecosystem and building upwards was the theory he aimed for (example: rain forest).

The general theory later failed due to the fact that there was little or extremely basic comparable information about the logic of a being, the concept worked more in favor towards smaller organisms.

[3][4] In a 1957 article published in the Southwestern Journal of Anthropology, archaeologist Eric R. Wolf argued that the organization of subsistence farmers into "closed, corporate communities" is a recurrent feature "in two world areas, widely separated by past history and geographical space: Mesoamerica and Central Java.