Abstract
ABSTRACT The Legado Verdes do Cerrado Sustainable Development Reserve is home to the largest private contiguous area of native vegetation in the Cerrado (Brazilian Savanna) biome, but its flora is still little studied. A floristic and phytosociological study was carried out in four phytophysiognomies of the Reserve (cerrado sensu stricto, cerradão, dry forest and ciliary forest). Eighty 10 x 10-m plots were systematically installed, with 20 in each phytophysiognomy. All live woody individuals with diameter at breast height ≥ 5 cm and height greater than 130 cm were measured. A total of 933 live individuals were sampled, with an estimated density of 1,166 ind ha-1, belonging to 154 species and 46 families. Diversity and equability were assessed at 4.47 nats ind-1 and 0.88, respectively. The diametric distribution of the individuals showed a negative exponential (reverse J), while the one for height classes showed a tendency towards normal distribution. Species richness and structural parameters were within the values found for native vegetation, except for the cerrado sensu stricto.
Highlights
The Cerrado (Brazilian Savanna) biome owns diverse landscapes and vegetation that form a true mosaic (Bueno et al 2018, Felfili & Felfili 2001)
The Cerrado communities sampled in the LVC showed a high floristic diversity
The studied tree communities are characterized by a high diversity, low species dominance and the presence of exclusive and rare species
Summary
The Cerrado (Brazilian Savanna) biome owns diverse landscapes and vegetation that form a true mosaic (Bueno et al 2018, Felfili & Felfili 2001). At least 25 phytophysiognomies have already been mentioned in the literature, considering subtypes, inserted in forests, savannas and grasslands formations (Ribeiro & Walter 2008, Walter et al 2015). Much of the Cerrado vegetation is fragmented, with around 5055 % of its original coverage remaining (Françoso et al 2015, Sano et al 2019, Alencar et al 2020). Of this total, only 3 % is considered strictly protected in conservation units (Françoso et al 2015). The creation and implementation of conservation units are important tools for protecting biodiversity. To be effective, they need to be concretely implemented, with adequate management levels (Coelho & Rezende 2016)
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