Viability of the Babassu Palm Eco-socio-system in Brazil: The Challenges of Coviability

Mitja, Danielle; Sirakov, Nikolay; Santos, Alessio Moreira dos; González-Pérez, Sol Elizabeth; Macedo, Deiane Jorge; Delaître, Eric; Demagistri, Laurent; Loisel, Patrice; Miranda, Izildinha Souza; Rey‐Valette, Hélène; Rocha, Maria Regina Teixeira da; Fontez, Bénedicte; Libourel, Thérèse

doi:10.1007/978-3-319-78111-2_14

Cited by 4 publications

(4 citation statements)

References 19 publications

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“…For example, while both regions 1 and 2 have undergone a clear-cut, region 1 has a long history of being maintained as a pasture before been abandoned, while region 2 was directly abandoned after being cut. This could explain why in region 1 there is a great dominance of palms as some palm species are known to be aggressive competitors in pasture, such as Attalea speciosa [57]. This species, which is common and widely distributed across the Amazon forest, is known for invasion of pastures that can cause abandonment of the land and also because cleaning pasture with fire has a positive effect on this species, favouring its dominance [24].…”

Section: Canopy Palm Distribution In Secondary Forestsmentioning

confidence: 99%

Regional Mapping and Spatial Distribution Analysis of Canopy Palms in an Amazon Forest Using Deep Learning and VHR Images

Wagner¹,

Dalagnol

Casapia

et al. 2020

Remote Sensing

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Mapping plant species at the regional scale to provide information for ecologists and forest managers is a challenge for the remote sensing community. Here, we use a deep learning algorithm called U-net and very high-resolution multispectral images (0.5 m) from GeoEye satellite to identify, segment and map canopy palms over ∼3000 km 2 of Amazonian forest. The map was used to analyse the spatial distribution of canopy palm trees and its relation to human disturbance and edaphic conditions. The overall accuracy of the map was 95.5% and the F1-score was 0.7. Canopy palm trees covered 6.4% of the forest canopy and were distributed in more than two million patches that can represent one or more individuals. The density of canopy palms is affected by human disturbance. The post-disturbance density in secondary forests seems to be related to the type of disturbance, being higher in abandoned pasture areas and lower in forests that have been cut once and abandoned. Additionally, analysis of palm trees’ distribution shows that their abundance is controlled naturally by local soil water content, avoiding both flooded and waterlogged areas near rivers and dry areas on the top of the hills. They show two preferential habitats, in the low elevation above the large rivers, and in the slope directly below the hill tops. Overall, their distribution over the region indicates a relatively pristine landscape, albeit within a forest that is critically endangered because of its location between two deforestation fronts and because of illegal cutting. New tree species distribution data, such as the map of all adult canopy palms produced in this work, are urgently needed to support Amazon species inventory and to understand their distribution and diversity.

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Section: Canopy Palm Distribution In Secondary Forestsmentioning

confidence: 99%

Regional Mapping and Spatial Distribution Analysis of Canopy Palms in an Amazon Forest Using Deep Learning and VHR Images

Wagner¹,

Dalagnol

Casapia

et al. 2020

Remote Sensing

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“…2, Fig. 3; Mitja et al 2018;Mitja et al 2019). Juvenile with an aerial stipe (regardless of sheath coverage) and without the signs of male or female reproductive organs 6…”

Section: Study Speciesmentioning

confidence: 99%

“…Araujo et al (2016) described 60 uses, including oil production from the seeds, the use of the leaves for roof construction, and palm heart for human food. Among the Kayapó Indians, the leaves are used to make masks representing animals, such as monkeys, for various traditional festivals (Mitja et al 2019). The ecological importance of the babassu lies in the fact that it exists in the long term in environments that are different from primary forests and pastures, and in these environments, its fruits are an important resource for wildlife.…”

Section: Study Speciesmentioning

confidence: 99%

What is the influence of anthropogenic impact on the population structure of Attalea speciosa Mart. ex Spreng. in the Brazilian Amazonian region?

et al. 2022

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Attalea speciosa (babassu) is a native palm of the primary forest from Amazonian and Cerrado biomes, and has multiple economic and cultural uses. However, this palm can become dominant in open areas, with a long-term persistence in the community. The objective of this study was to compare the population structure and morphology of babassu in three habitat types characterizing forest succession: primary forest, pasture, and babaçual (babassu-dominated secondary forest). For this purpose, we monitored 6,333 individuals for three years at six life stages in 11 sites with 25 plots located in PA-Benfica, Itupiranga-Pará, Brazil. The morphological parameters showed differences between secondary environments (pasture and babaçual) and primary forests, suggesting that this species has a high capacity for phenotypic plasticity. The inverse J-shaped distribution was observed only in primary forests, with the density of all stages constant along the whole study, unlike pastures and babaçual areas. While the density of seedlings is highest in primary forests, stage 4 and 5 juveniles and adults are most numerous in babaçuals. Our results suggest that the higher dominance of A. speciosa in babaçual areas can be associated with the resilience of this species to anthropogenic disturbances.

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“…Six stages have been defined varying from the seedling to the adult palm tree (Fig. 1, see Mitja et al (2019) for more details). In addition, the reproductive stage and fructification of the babassu has been studied by Barot et al (2005) and Anderson et al (1991) providing knowledge for understanding the reproductive process and recruitment in our modelling.…”

Section: Biology Of Babassu In Pasturesmentioning

confidence: 99%

A stage-structured hierarchical Bayes model for the babassu palm tree population dynamics – Estimated from anthropogenic open area data sets

Sirakov

Fontez

Libourel³

et al. 2019

Ecological Modelling

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Viability of the Babassu Palm Eco-socio-system in Brazil: The Challenges of Coviability

Cited by 4 publications

References 19 publications

Regional Mapping and Spatial Distribution Analysis of Canopy Palms in an Amazon Forest Using Deep Learning and VHR Images

Regional Mapping and Spatial Distribution Analysis of Canopy Palms in an Amazon Forest Using Deep Learning and VHR Images

What is the influence of anthropogenic impact on the population structure of Attalea speciosa Mart. ex Spreng. in the Brazilian Amazonian region?

A stage-structured hierarchical Bayes model for the babassu palm tree population dynamics – Estimated from anthropogenic open area data sets

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