Ecogeography of Lippia rotundifolia Cham. in Minas Gerais, Brazil

Abstract

Lippia rotundifolia is a specie native to the Brazilian Cerrado, endemic to the Cadeia do Espinhaço mountain range. Due to the limited information about the species, the present study aimed to characterize the ecogeography, climate conditions and physical and chemical characteristics of the soil of Lippia rotundifolia in the state of Minas Gerais, Brazil. Thirteen sites were ecogeographically characterized: Parque Estadual Veredas do Peruaçu; Gigante; Rio do Peixe; AEP of Olhos D’água; Joaquim Felício; Parque Estadual do Rio Preto; São Gonçalo do Rio das Pedras; Rio Tigre; RPPN Brumas do Espinhaço; Lapinha; Poço Bonito; Abóboras; and Parque Estadual de Serra Nova. Environments belonged to Cerrado and Caatinga biomes, specifically in rocky and altitude fields. The species occurs at altitudes between 691-1311m, with precipitation between 700 to 1600mm and average temperature between 14.5 to 24°C. In these vegetation types, the soils were sandy, hyper dystrophic and highly toxic with a low cation exchange capacity. These characteristics make the species undemanding with regard to edaphoclimatic and ecogeographic factors.

Genetic diversity of <i>Lippia rotundifolia</i> Cham. in Minas Gerais, Brazil

“…The low genetic diversity observed can be explained by the small population density, which made it impossible to keep sampling with the same distance between the individuals as sampled for Lippia origanoides (Suárez et al, 2008), where the authors reported that the sampling between individuals equidistant 1.2 Km, results in different genotypes. Another factor observed in this study was that the temperature may also have contributed to the genotypic adaptation of the plant (Vega-Vela & Sánchez, 2012;Meira, Martins, & Resende, 2017).…”

Estudos ecogeográficos de Eplingiella fruticosa (Salzm. Ex Benth. Harley& J.F.B. Pastore): Uma espécie medicinal do semiárido do Brasil

“…Adicionalmente, por ser uma espécie não cultivada, cuja exploração se dá de forma extrativista, torna-se extremamente vulnerável a erosão genética, sendo imprescindíveis estudos e ações que subsidiem trabalhos na área de conservação, domesticação e desenvolvimento de sistemas de cultivos (Silva, 2015). Nesse contexto, a ecogeografia é uma ferramenta de grande importância, pois permite predizer em que tipo de ambiente uma espécie nativa ocorre e, ainda, a sua adaptação aos fatores geográficos, edáficos e climáticos (Meira, 2017).…”