Use este identificador para citar ou linkar para este item: https://repositorio.inpa.gov.br/handle/1/16631
Título: Historical landscape domestication in ancestral forests with nutrient-poor soils in northwestern Amazonia
Autor: Franco-Moraes, Juliano
Baniwa, Armindo F.M.B.
Costa, Flávia Regina Capellotto
Lima, Helena Pinto
Clement, Charles Roland
Shepard, Glenn Harvey
Palavras-chave: Biodiversity
Conservation
Ecology
Nutrients
Population Statistics
Rivers
Soils
Biodiversity Conservation
Direct Observations
Environmental Limitations
Floristic Compositions
Human Modification
Indigenous People
Nutrient-poor Soils
Old-growth Forest
Forestry
Anthropogenic Effect
Biodiversity
Conservation Status
Forest Soil
Indigenous Population
Land Rights
Landscape
Management Practice
Old-growth Forest
Soil Nutrient
Biodiversity
Conservation
Ecology
Forestry
Nutrients
Rivers
Amazonia
Data do documento: 2019
Revista: Forest Ecology and Management
É parte de: Volume 446, Pags. 317-330
Abstract: Past human modification of forests has been documented in central, southwestern, and eastern Amazonia, especially near large rivers. Northwestern Amazonia, and interfluvial forests there in particular, are assumed to exhibit little past human impact. We analyzed soils and floristic structure and composition of interfluvial forests located in the Içana River basin, northwestern Amazonia, to assess their degree of past human modification. Ancient Baniwa village sites, abandoned centuries ago, have given rise to “ancestral forests” with as much as 57% of all trees/palms belonging to a group of species managed currently by the Baniwa, compared to only 10% of such species in old-growth forests that are not remembered as having been inhabited or managed in Baniwa oral tradition. Participatory mapping and direct observations revealed ancestral forests to be widely distributed throughout the region, whereas old-growth forests are rare. Managed species in ancestral forests contributed 5-fold more to total tree/palm biomass than in old-growth forests. Human management has produced lasting changes in floristic composition, maintained total tree/palm biomass, and improved soil quality. This is the first study to demonstrate past human modification in Amazonian interfluvial forests, while explicitly isolating historical human management from edaphic effects on floristic structure and composition. Despite environmental limitations on human population size, posed by nutrient-poor black water rivers and acidic, sandy soils, indigenous peoples of northwestern Amazonia left a clear, lasting cultural legacy in ancestral forests. Given legal changes that threaten indigenous peoples' land rights currently under debate in Brazil, we call for a reconsideration of biodiversity conservation policies and indigenous rights in areas that show enduring legacies of management by indigenous populations. © 2019 Elsevier B.V.
DOI: 10.1016/j.foreco.2019.04.020
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