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Conquest: the Destruction of the American Indios. Massimo Livi-Bacci University of Florence British Society for Population Studies University of Manchester, September 10-12, 2008. Estimates of America’s Population at Contact (million). America’s Population 1500-1800.
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Conquest: the Destruction of the American Indios Massimo Livi-Bacci University of Florence British Society for Population Studies University of Manchester, September 10-12, 2008
America’s Population 1500-1800 • Contact: unknown number, 100% indios;in 1800=25.0, 45% indios & mestizos: • 1500-1800: “high returns” to european immigration. Stock of europeans in 1800=8.0; Net immigration: 2.3; Ratio=3.6 • 1500-1800: “negative returns” to african “immigration” (slavery): Stock of africans in 1800=5.6; net “immigration”=7.2; Ratio=0.8
The Catastrophe • Population of America at contact: “high” and “low” counters (8 to 110 million); • Hispaniola: 1492=0.2/0.3 (personal estimates: “modern” estimates ranging 0,06-8.0 !!); 1518=12,000; 1550=extinction (Epid. 1518-19) • Mexico: 1519=(3.3/37.5): 1568= 3.0; 1608=1,1 (Epid: 1520-21; 1545-47; 1576-80). • Peru: 1570=1.290; 1600=0,851 (Epid: 1520s, unlikely; 1558; 1585-91
Motolinia’s 10 Plagues(Mexico) • (1) Smallpox; (2) War; • (3) Famine as a consquence of war; • (4) Cruelty, greed, oppression (calpixques); • (5) Heavy tributes and services; (6) Gold; • (7) Building Mexico city; (8) Enslavement; • (9) Provisioning the mines;(10) factions among the Spaniards
Smallpox: general characteristics • Crowd disease: develops in animals living in close contact: flocks, herds (virus of smallpox, measles etc); • Interaction, evolution, adaptation: virus migrates to humans; Eurasia, Africa; • But not in America: no large mammals (but bison, turkeys, llamas, dogs); little opportunities for interaction; low human density; recent settlement of humans; • Lack of immunity among Indios: everybody susceptible; • Latency: 12-14 days after infection: no symptoms; • Infectiousness: 12 day max: high fever, nausea, pains, eruptions, eventually death • Mortality of the infected: 20 to 50% according to age.
Smallpox: basic model I • Interval among outbreaks: ca. 15 years; • 80% are infected; • 40% of the infected die; • No growth in the population between outbreaks; • Susceptible population after the first outbreak: 20% not infected; 60% of those infected who survived; newborn in the 15 years interval; • Population of 1000 at first outbreak reduced to 600 after 15 years and to 423 after 30 years; • Mortality rate: 40% f.o; 16% s.o.
Smallpox: basic model II • Interval between outbreaks: ca. 15 years; • 70% are infected (population more dispersed; learns to escape contagion etc; • 40% of the infected die at first outbreak, but 30% at second, third… outbreaks (the sick are not abandoned etc; • Population rebounds 15% between outbreaks; • Initial population of 1000, reduced to 901 after 30 years
Four paradigms after ConquestParadigm I: Caribbean (destruction without epidemics) • Population disappears; catastrophic decline; • High ratio Europeans/Indios; • Enslavement and dislocation;destructuring of communities; • Forced labor (gold mines); • “Appropriation” of young women (F/M=0,8); • Low fertility (Children/women ratio 0.3); • High mortality and low fertility: no rebound
Hispaniola in 1514(Alburquerque’s Repartimiento: first census of America)
Paradigm II: Coastal lowlands, Gulf of Mexico, Peru (catastrophic) • Higher pathological density; favorable environment for diffusion of new pathologies; • Malaria & plasmodium: mortality and emigration; • Vulnerable environment (coastal valleys of Peru): appropriation of best land and water resources; • High impact of europeans (Peru); • General dislocation (Brazilian variant)
Paradigm III: highlands of Mexico, Peru (rapid decline and resilience) • Lesser dislocation of society, but: • restructuring of settlements (much stronger in Peru than Mexico); • Destructive impact of wars in Peru (1520s-1540s); • Radial conformation of Mexican meseta, comb-like conformation of Peru: possible impacts on diffusion of pathologies; • Lesser impact of pathologies at high altitudes?
The Collapse of Mexico’s Population (according to Cook and Borah)
Population of New Spain, 1570(Royal Cosmographer Lopez de Velasco)
Paradigm IV: Paraguay(Expansion in spite of epidemics) • Frequent epidemics, high epidemic mortality (young age structure); • Very high fertility: Jesuits enforce early and universal marriage, high fertility; • Strong rebounds after epidemics and high population growth in the interepidemic intervals; • Preservation of Guaranì communities from dislocation, forced labor, enslavement