Flowering plants of the Grota do Angico Natural Monument, Caatinga of Sergipe, Brazil

Abstract

The purpose of this study was to survey the Angiosperms from an area of Caatinga, in the Grota do Angico Natural Monument, state of Sergipe, Brazil. A total of 174 species and 51 families were registered. Fabaceae (29 species) is the family with the highest number of species, followed by Asteraceae (11), Euphorbiaceae (10), Malvaceae and Poaceae (9 each) and Rubiaceae (8), Bromeliaceae, Cactaceae and Convolvulaceae (7 each). Most species are herbaceous (55.2%), followed by trees (20.7%), shrubs and vines (7.5% each), subshrubs (6.3%), epiphytes (1.7%) and hemiparasites (1.2%). Approximately 17% (30 species) of the flora are endemic to the Caatinga, one species is rare and two are vulnerable. Our results reinforce the importance of conserving the remaining forest vegetation against the anthropic pressure.

Caracterização e atributos da vegetação herbácea em um fragmento de Caatinga no Estado de Sergipe, Brasil

“…Griseb., Ageratum conyzoides L. e Paspalum fimbriatum Kunth (tabela 1), com cerca de 47% do total dos VIs e apresentado-se em teoria como as espécies de maior sucesso em explorar os recursos da área. Em Sergipe, estas espécies possuem registro em boa parte dos estudos existentes na Caatinga, tanto naqueles realizados especificamente com o estrato herbáceo (Oliveira et al 2013), como em todos os estratos (Nogueira-Jr 2011, Machado et al 2012, Silva et al 2013b. O diâmetro elevado de Aechmea aquilega (Salisb.)…”

Changes in leaf chlorophyll content associated with flowering and its role in the diversity of phytophagous insects in a tree species from a semiarid Caatinga

“…The climate is classified as tropical semi-arid (BShw - Köppen), with low and irregular average annual rainfall (about 500 mm/year). The dry season generally lasts some seven to eight months a year, from September to April ( Silva, Prata & Mello, 2013 ). The vegetation is semiarid and deciduous xerophytic, with a tree layer containing 174 species belonging to 51 families, ranging from 7 m to 15 m ( Silva, Prata & Mello, 2013 ).…”

“…The dry season generally lasts some seven to eight months a year, from September to April ( Silva, Prata & Mello, 2013 ). The vegetation is semiarid and deciduous xerophytic, with a tree layer containing 174 species belonging to 51 families, ranging from 7 m to 15 m ( Silva, Prata & Mello, 2013 ). The MNGA has several fragments of secondary forest in diverse stages of succession with approximately 15 years of forest regeneration, surrounded by pastures ( Ribeiro et al, 2013 ; Silva et al., 2013 ).…”

Florística do Entorno de Cavernas em Remanescentes de Mata Atlântica e Caatinga de Sergipe (Floristic of Surrounding Caves in Remnants of Atlantic Rainforest and Caatinga of Sergipe State, Brazil)

“…Por outro lado, a família Asteraceae foi à de maior número de espécies nos remanescentes de Caatinga estudados em Sergipe, assim como foi observado por outros estudos nestas áreas (Machado et al, 2012;Ferreira et al, 2013;Silva et al, 2013). Para este bioma são registradas 82 espécies de 45 gêneros de Asteraceae (Flora do Brasil 2020 em construção, 2017).…”