Secondary forests on anthropogenic soils in Brazilian Amazonia conserve agrobiodiversity

摘要: Throughout Brazilian Amazonia anthropogenic soils that are the product of pre-Columbian settlements called Terra Preta de Indio (Indian Dark Earths, TPI). These dramatically different from surrounding due to long-term human activity, but there is little information about how secondary forest succession affected by these differences. We tested if community structure (density, richness and basal area), floristic composition domesticated species’ density were similar between TPI non-anthropogenic (NAS) in 52 25 × 10 m plots successional stages near three traditional communities along middle Madeira River, Central Amazonia. sampled 858 woody individuals on (77 domesticated) 1095 NAS (27 domesticated); 550 understory palms (169 778 (123 domesticated). found 179 species (10 domesticated), 190 (8 74 (25%) both environments. Although was fairly similar, they showed significantly distinctive compositions, for palms. The higher than individuals, not intimate association with activity has lead formation distinct forests favored concentration populations crop species. Hence, concentrate agrobiodiversity, offering advantages situ conservation genetic resources, unique ecosystems should be considered efforts.