Example image of eyePlorer eyePlorer map for 'Ester Böserup': 1910 1999 Economist September 24 International organization United Nations Agriculture Food security Population Thomas Robert Malthus Gender role Population density Slash and burn Crop rotation Developing country Mauritius Tropical climate Doubling time Total fertility rate Mortality rate Birth rate Population growth Family planning Health care Tax exemption Third World Adil Najam Cultural ecology Carrying capacity Guns, Germs, and Steel Malthusian catastrophe Shifting cultivation