Population Structure and Fruit Production of Carapa guianensis (Andiroba) in Amazonian Floodplain Forests: Implications for Community-Based Management

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dc.contributor.author Staudhammer, Christopher Lynn
dc.contributor.author Londres, Marina
dc.contributor.author Schulze, Mark
dc.contributor.author Kainer, Karen A.
dc.coverage.spatial Amazon River Estuary (Brazil) en_US
dc.date.accessioned 2018-11-20T18:47:44Z
dc.date.available 2018-11-20T18:47:44Z
dc.date.issued 2017
dc.identifier.citation Londres, M., Schulze, M., Staudhammer, C., Kainer, K. (2017): Population Structure and Fruit Production of Carapa guianensis (Andiroba) in Amazonian Floodplain Forests: Implications for Community-Based Management. Tropical Conservation Science, vol. 10. DOI: https://doi.org/10.1177/1940082917718835 en_US
dc.identifier.uri http://ir.ua.edu/handle/123456789/4972
dc.description.abstract Andiroba (Carapa guianensis) is a multiple-use tree species that plays a crucial socioeconomic role across thousands of Amazonian traditional and indigenous communities. In the floodplain forests of the Amazon estuary, we partnered with local forest managers to investigate C. guianensis ecological parameters, addressing seed production rates, tree density, and size class structure across a range of environmental conditions and forest use history. C. guianensis population structure was measured in three forest types: baixio, restinga, and terra preta, differentiated by tidal influence, species dominance and composition, and edaphic conditions. We found significant differences across forest types, whereby seedling and sapling densities were higher in terra preta and adult densities were higher in baixio. Adult densities were 28.7, 23.0, and 19.5 trees/ ha, and seedling densities were 22.9, 105, and 151 trees/ha in baixio, restinga, and terra preta forest types, respectively. Seed production rates varied significantly across forest types, year, size class, crown form, and crown illumination. There were higher numbers of viable seeds in terra preta versus baixio (5.5 kg and 2.6 seeds/tree/year, respectively) as well as more trees with better crown forms, more light, and larger diameter sizes. Long-term patterns of community timber management intensity by forest type significantly influenced both population structure and population-level seed production. Nonetheless, assessment of seed production for the total population suggests that the local community was collecting less than 1% of the viable C. guianensis seeds produced annually within community forest lands. This study illustrates the potential of management to impact the sustainability of an important multiple use species and shows the impact that community conservation planning and action can have on future natural resource availability. en_US
dc.format.mimetype application/pdf en_US
dc.subject Amazon estuary en_US
dc.subject nontimber forest products en_US
dc.subject timber en_US
dc.subject sustainable use en_US
dc.subject forest-based livelihoods en_US
dc.title Population Structure and Fruit Production of Carapa guianensis (Andiroba) in Amazonian Floodplain Forests: Implications for Community-Based Management en_US
dc.type text en_US


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