Responses to population pressure in the Papua New Guinea highlands.
D003247:Conservation of Natural Resources; D003710:Demography; D003906:Developing Countries; D004641:Emigration and Immigration; D004777:Environment; D008542:Melanesia; D010139:Pacific Islands; D010219:Papua New Guinea; D011153:Population; D011157:Population Dynamics
Demographic Factors; Developing Countries; Environment; Melanesia; Migration; Migration, Internal; Natural Resources; Oceania; Papua New Guinea; Population; Population Dynamics