Floristic evolution in an agroforestry system cultivation in Southern Brazil

Silva, Luís C.R.; Machado, Sebastião; Galvão, Franklin; Filho, Afonso Figueiredo

doi:10.1590/0001-3765201620150026

Cited by 5 publications

(4 citation statements)

References 9 publications

(4 reference statements)

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“…Thus, lower diversity index values in the top-left part of the maps, between the Y-coordinate 250-500 m and X-coordinate 0-200 m (Figure 4), were caused by the higher dominance of pioneer species, especially Mimosa scabrella Benth. (Silva et al 2016), resulting in local diversity reductions for Shannon's and Margalef's indices and increasing dominance for Simpson's index.…”

Section: Discussionmentioning

confidence: 99%

Spatial variability of tree species diversity in a mixed tropical forest in Southern Brazil

Pelissari

Filho

Ebling

et al. 2018

An. Acad. Bras. Ciênc.

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Floristic surveys and diversity indices are often applied to measure tree species diversity in mixed tropical forest remnants. However, these analyses are frequently limited to the overall results and do not allow to evaluate the spatial variability distributions of tree diversity, leading to develop additional tools. This study aimed to estimate the spatial variability of tree diversity and map their spatial patterns in a Brazilian mixed tropical forest conservation area. We used indices to measure the tree species diversity (dbh ≥ 10 cm) in 400 sampling units (25 m x 25 m) from a continuous forest inventory. Semivariograms were fitted to estimate spatial dependences and punctual kriging was applied to compose maps. Mean diversity values were constant in the continuous inventories, indicating a forest remnant in an advanced stage of ecological succession. On the other hand, tree diversity presented spatial patterns identified by geostatistics, in which the dynamics were composed of heterogeneous mosaics spatially influenced by tree species with different ecological features and densities, gap dynamics, advancement of forest succession, mortality, and Araucaria angustilofia's cohorts.

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Section: Discussionmentioning

confidence: 99%

Spatial variability of tree species diversity in a mixed tropical forest in Southern Brazil

Pelissari

Filho

Ebling

et al. 2018

An. Acad. Bras. Ciênc.

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“…Here, we identify several groups of species that can be combined in mixed cropping systems based on similar climatic niche requirements under current and future climatic conditions. Important economic species such as Araucaria angustifolia (Zechini et al, 2018), Acca sellowiana (Donazzolo et al, 2020), Euterpe edulis (Favreto et al, 2010), I. paraguariensis (Siminski et al, 2016) and M. scabrella (da Silva et al, 2016) have already been traditionally combined with other agricultural crops in managed landscapes in southern Brazil. However, other popularly known medicinal species such as Bugweed Solanum mauritianum , Espinheira‐santa Monteverdia ilicifolia and Green Pepper Basil Ocimum carnosum remain neglected and underutilized, particularly due to imposed and deeply rooted cultural standards, which favour exotic products and crops (Coradin et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

Integrating climate change into agroforestry conservation: A case study on native plant species in the Brazilian Atlantic Forest

Lima

Joner

et al. 2023

Journal of Applied Ecology

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Designing multispecies systems with suitable climatic affinity and identifying species' vulnerability under human‐driven climate change are current challenges to achieve successful adaptation of natural systems. To address this problem, we need to (1) identify groups of species with climatic similarity under climate scenarios and (2) identify areas with high conservation value under predicted climate change. To recognize species with similar climatic niche requirements that can be grouped for mixed cropping in Brazil, we employed ecological niche models (ENMs) and Spearman's ρ for overlap. We also used prioritization algorithms to map areas of high conservation value using two Shared Socioeconomic Pathways (SSP2‐4.5 and SSP5‐8.5) to assess mid‐term (2041–2060) and long‐term (2061–2080) climate change impacts. We identified 15 species groups with finer climatic affinities at different times depicted on hierarchical clustering dendrograms, which can be combined into agroecological agroforestry systems. Furthermore, we highlight the climatically suitable areas for these groups of species, thus providing an outlook of where different species will need to be planted over time to be conserved. In addition, we observed that climate change is predicted to modify the spatial association of these groups under different future climate scenarios, causing a mean negative change in species climatic similarity of 9.5% to 13.7% under SSP2‐4.5 scenario and 9.5% to 10.5% under SSP5‐8.5, for 2041–2060 and 2061–2080, respectively. Synthesis and applications. Our findings provide a framework for agroforestry conservation. The groups of species with finer climatic affinities identified and the climatically suitable areas can be combined into agroecological productive systems, and provide an outlook of where different species may be planted over time. In addition, the conservation priority zones displaying high climate stability for each species individually and all at once can be incorporated into Brazil's conservation plans by policymakers to prioritize specific sites. Lastly, we urge policymakers, conservation organizations and donors to promote interventions involving farmers and local communities, since the species' evaluated have proven to maintain landscapes with productive forest fragments and can be conserved in different Brazilian ecosystems.

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“…In spite of the fact that not all species have already been found in current agricultural systems or been managed by farmers, they all have one or multiple uses and can be combined in mixed cropping. Some species such as A. angustifolia 31 , A. sellowiana 32 , E. edulis 33 , Ilex paraguariensis 34 , and Mimosa scabrella 35 have already traditionally been combined with other agricultural crops in managed landscapes in southern Brazil. All taxonomic authorities and species common names are listed in Supplementary Table S3 .…”

Section: Methodsmentioning

confidence: 99%

Climate change threatens native potential agroforestry plant species in Brazil

Lima

Joner

et al. 2022

Sci Rep

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Climate change is one of the main drivers of species extinction in the twentyfirst-century. Here, we (1) quantify potential changes in species' bioclimatic area of habitat (BAH) of 135 native potential agroforestry species from the Brazilian flora, using two different climate change scenarios (SSP2-4.5 and SSP5-8.5) and dispersal scenarios, where species have no ability to disperse and reach new areas (non-dispersal) and where species can migrate within the estimated BAH (full dispersal) for 2041–2060 and 2061–2080. We then (2) assess the preliminary conservation status of each species based on IUCN criteria. Current and future potential habitats for species were predicted using MaxEnt, a machine-learning algorithm used to estimate species' probability distribution. Future climate is predicted to trigger a mean decline in BAH between 38.5–56.3% under the non-dispersal scenario and between 22.3–41.9% under the full dispersal scenario for 135 native potential agroforestry species. Additionally, we found that only 4.3% of the studied species could be threatened under the IUCN Red List criteria B1 and B2. However, when considering the predicted quantitative habitat loss due to climate change (A3c criterion) the percentages increased between 68.8–84.4% under the non-dispersal scenario and between 40.7–64.4% under the full dispersal scenario. To lessen such threats, we argue that encouraging the use of these species in rural and peri-urban agroecosystems are promising, complementary strategies for their long-term conservation.

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Floristic evolution in an agroforestry system cultivation in Southern Brazil

Cited by 5 publications

References 9 publications

Spatial variability of tree species diversity in a mixed tropical forest in Southern Brazil

Spatial variability of tree species diversity in a mixed tropical forest in Southern Brazil

Integrating climate change into agroforestry conservation: A case study on native plant species in the Brazilian Atlantic Forest

Climate change threatens native potential agroforestry plant species in Brazil

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