Brazil nut stock and harvesting at different spatial scales in southeastern Amazonia

The regeneration of Brazil nut trees in relation to nut harvest intensity in the Trombetas River valley of Northern Amazonia; Brazil

This study examined the harvest of nuts from Brazil nut trees (Bertholletia excelsa) in the valley of the Trombetas River; a 760-km tributary on the northern bank of the Amazon River in Pará state; Brazil. The region is characterised by old-growth forests dominated by Brazil nut trees. Demographic data were obtained from twenty-five 50-m × […]

Spatial dynamics of cone production in Mediterranean climates: A case study of Pinus pinea L. in Portugal

Seed production of trees is key to natural regeneration of forests and to successful conservation management. Despite its importance no spatially explicit analyses of seed production have so far been carried out in this important field. Analyses like these are particularly important in areas with regular summer droughts. We used Pinus pinea L. as a […]

Evaluating the opportunities and limitations to multiple use of Brazil nuts and timber in Western Amazonia

Multiple-use forest management; which includes timber; non-timber forest products; and environmental services; is considered a promising tropical conservation and development strategy. In the tri-national frontier region of Madre de Dios (Peru); Acre (Brazil); and Pando (Bolivia) in Western Amazonia; we evaluated perceptions of representatives from four stakeholder groups – communities; industries (Brazil nut and timber); […]

Brazil nut conservation through shifting cultivation.

The regeneration of Brazil nut trees depends on tree-fall gaps in the forest. However; shifting cultivation fallows also create comparable biotic and abiotic opportunities for the dispersion and establishment of this gap-loving species. At the same time; the ability of Brazil nut trees to resprout enables fallow individuals to survive successive slash-and-burn cycles. Recognizing the […]