Palm community transitions along a topographic gradient from floodplain to terra firme in the eastern Amazon

Salm, Rodolfo; Prates, Anderson Sousa; Simões, Nadson Ressyé; Feder, Lisa

doi:10.1590/1809-4392201401533

Cited by 7 publications

(7 citation statements)

References 23 publications

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“…Environmental factors such as soil characteristics, inundation, and light availability have a direct influence on the survival and regeneration of Attalea. The Attalea genus is known to be present at a nutrient, alkalinity, soil texture, and inundation gradient (Grégoire, 2010;Salm, Prates, Simoes, & Feder, 2015). Attalea occurs on dry to seasonally flooded soils; therefore, this species can be expected close to seasonally inundated areas (Moraes & Zenteno-Ruiz, 2017).…”

Section: Environmental Factorsmentioning

confidence: 99%

Cattle affect regeneration of the palm species Attalea princeps in a Bolivian forest–savanna mosaic

et al. 2019

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Attalea princeps is an important palm species that shapes the forest–savanna mosaic in Beni, Bolivia, as it dominates the two principal forest landscape elements (forest islands and gallery forest), and provides a vital microhabitat, food, and nesting source for numerous plant and animal species. The forest–savanna mosaic is used for extensive grazing, and the palm population is declining on the forest islands due to a low regeneration rate, which threatens the maintenance of this landscape. We therefore examined the (a)biotic factors that influence the population structure of Attalea in the centers and edges of forest islands and gallery forests. Ninety‐one 0.1‐ha plots were established, and 500 palm adults and 3,700 juveniles were measured for their size, health condition, and fire damage. For each plot, habitat characteristics, such as landscape position, grazing pressure, and soil conditions, were measured. Attalea population density was significantly lower on the forest islands than in the gallery forests, especially in the juvenile life stage. A structural equation model showed that juvenile density is positively related to the health condition of juveniles and amount of fruits present, where the amount of fruits is positively affected by the condition of adults. Juvenile density is negatively influenced by grazing, affecting the health condition of the juvenile, as well as organic matter and phosphate availability in the soil. Therefore, it is recommended to decrease the grazing pressure by decreasing livestock densities, fencing off vulnerable forest islands, or by rotating cattle.Abstract in Spanish is available with online material.

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Section: Environmental Factorsmentioning

confidence: 99%

Cattle affect regeneration of the palm species Attalea princeps in a Bolivian forest–savanna mosaic

et al. 2019

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“…According to Salm et al (2015) the A. maripa show low tolerance to floods, obtaining a greater affinity for dry land, fact that may have influenced the greater emission of male inflorescences in this research.…”

Section: Resultsmentioning

confidence: 76%

SPATIAL DISTRIBUTION OF SPONTANEOUS PRODUCTION OF Attalea maripa (Aubl) Mart. IN THE LOW TOCANTINS

et al. 2017

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-The production of biofuels from native Amazonian palm trees, belonging to the family of Arecaceae, like Attalea maripa (Aubl) Mart. (Maripa palm), are objects of studies of alternative energy sources for the biofuels production. Thus, the aim of this research was to evaluate the spatial dynamics of agronomic variables of Maripa palm crop production associated with the characteristics of the sampling sites in a spontaneous growth area in the Low Tocantins region. 100 palms of A. maripa were selected, of spontaneous growth and in production phase, on a 10 ha area in the municipality of Cametá / PA, in which the morpho-agronomical variables were collected (MIN, FIN, ABN, LN

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“…These six explanatory variables were selected, based on findings from previous studies (Terborgh and Andresen, 1998;de Castilho et 180 al., 2006;Poulsen et al, 2006;Costa et al, 2009;Eiserhardt et al, 2011;Göldel et al, 2015;Salm et al, 2015). Topographic variables were selected to represent the form and shape of land surface: slope, aspect and terrain ruggedness.…”

Section: Explanatory Variablesmentioning

confidence: 99%

Too rare for non-timber resource harvest? Meso-scale composition and distribution of arborescent palms in an Amazonian sustainable-use forest

Norris

Chuma

Arévalo-Sandi

et al. 2016

Forest Ecology and Management

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Highlights The occurrence, density and biomass of adult arborescent palms were measured in a National Forest in the eastern Brazilian Amazon. Commercially important arborescent palms were rare. Density and biomass were related to hydrographic and topographic variables. Subsidised agroforestry practices are required to facilitate the commercialization of palm NTFPs. Published as:Norris, D., Chuma, V.J.U.R., Arevalo-Sandi, A.R., Paredes, O.S.L. and Peres, C.A., 2016. Too rare for non-timber resource harvest? Meso-scale composition and distribution of arborescent palms in an Amazonian sustainable-use forest. Forest Ecology and Management, 377,. oleracea, an economically important species. The presence, biomass, and density of palms were uncorrelated with geographic distances among plots. The hydrographic model significantly explained variation in palm presence and biomass, whereas density was only explained by the topographic model. Our findings indicate that arborescent palms are currently too rare to be efficiently harvested as NTFPs in the study area. Yet, comparisons with published estimates suggest that there is significant potential for agroforestry to facilitate the commercialization of palm NTFPs for community based extractive activities.

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Palm community transitions along a topographic gradient from floodplain to terra firme in the eastern Amazon

Cited by 7 publications

References 23 publications

Cattle affect regeneration of the palm species Attalea princeps in a Bolivian forest–savanna mosaic

Cattle affect regeneration of the palm species Attalea princeps in a Bolivian forest–savanna mosaic

SPATIAL DISTRIBUTION OF SPONTANEOUS PRODUCTION OF Attalea maripa (Aubl) Mart. IN THE LOW TOCANTINS

Too rare for non-timber resource harvest? Meso-scale composition and distribution of arborescent palms in an Amazonian sustainable-use forest

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