. . . . "situation" . "Population ecology" . . . . "subpopulation" . "population trend" . "autecology" . "demographic" . "2" . . . "explode" . . "historical associations among population" . "population" . "population ecology#History" . "equilibrium" . "2.3" . . . . "Population ecology" . . . "population structure" . . . "autecological" . . "populations" . . "population ecological" . . "population ecology" . . .