0 the fact of a country or city, etc. having too many people for the amount of food, materials, and space available there: --
A pervasive hazard causes a gradual reduction in the resource potential of a landscape and affects the resident population in much the same way as overpopulation.
The land-subdivision and overpopulation theses imply a causal connection between being poor compared to other people in the land of origin and the decision to emigrate.
Their absence is certainly conspicuous, given the implicit focus on reproduction, as the source of overpopulation and the consequent "vice and misery," within the text.
This is a good example of different levels at which one can identify a case of "overpopulation" under diverse circumstances.
Respondents were asked about advanced industrialized country resource consumption, the operations of multinational corporations, and developing country overpopulation.
Other social liabilities such as war fare, interruption of trade routes, impoverishment of soil nutrients, and overpopulation would have exacerbated relationships with the background conditions.
The study of networks in migration history so far seems to employ less explicit models than the overpopulation approach.
That problem is population, or more specifically, human overpopulation.
