Abstract
Through this study, the objective was to contribute to the knowledge regarding floristic composition, classification and conservation status of the studied plant species as well as the dispersion syndromes of flora found in a disjoint Cerrado area in the Chapada do Araripe, Crato-CE. For the research development Rapid Survey method, applied in three walking lines (Line 1, Line 2 and Line 3) was adopted. Floriferous branches, fruits and seeds from species in the study area were collected in order to identify them and to characterize their diaspores, in view of fitting them into the corresponding dispersion syndromes. A total of 103 species were identified, the richest species taxa were: Fabaceae, Apocynaceae, Euphorbiaceae, Malpighiaceae and Myrtaceae. The most abundant species in the studied area were: Cordiera myrciifolia (“bola”) Miconia albicans (“Candeiro-de-pelo”), Caryocar coriaceum (pequi) and Copaifera langsdorffii (“pau d'oleo”). Three new occurrences were also recorded for the state of Ceará: Eriope tumidicaulis, Myrciaria cf. tenella and Stachytapheta cf. crassifolia. The most frequent dispersion syndrome was zoochoria, followed by anemocoria. Considering that most of the species occurring in the study area have their dispersion diaspores transported by a fauna element, the importance of these species for the maintenance of the observed floristic richness is evident.
Highlights
The Cerrado is considered the most diversified tropical savanna in the world regarding phytophysiognomies, possessing high biodiversity (Klink & Machado 2005; Lefebvre & Nascimento 2016) with vegetation that covers a true mosaic of environments sheltering diverse ecosystems, ranging from open formations, subdivided between rural and savanna formations, to forest physiognomies (Ribeiro & Walter 2008)
Through this study, the objective was to contribute to the knowledge regarding floristic composition, classification and conservation status of the studied plant species as well as the dispersion syndromes of flora found in a disjoint Cerrado area in the Chapada do Araripe, Crato-CE
In order to fill some of this knowledge gap, this study aimed to determine the floristic composition, conservation state of the studied plant species and the dispersion syndromes of species occurring in a disjoint Cerrado area of the Chapada do Araripe, Crato-CE, Northeast of Brazil, contributing to the understanding of the ecological processes that work in this vegetative formation
Summary
The Cerrado (brazilian savannah) is considered the most diversified tropical savanna in the world regarding phytophysiognomies, possessing high biodiversity (Klink & Machado 2005; Lefebvre & Nascimento 2016) with vegetation that covers a true mosaic of environments sheltering diverse ecosystems, ranging from open formations, subdivided between rural and savanna formations, to forest physiognomies (Ribeiro & Walter 2008). It is, one of the global biodiversity hotspots due to its high degree of endemism (Myers et al 2000; Ponciano 2015). In order to fill some of this knowledge gap, this study aimed to determine the floristic composition, conservation state of the studied plant species and the dispersion syndromes of species occurring in a disjoint Cerrado area of the Chapada do Araripe, Crato-CE, Northeast of Brazil, contributing to the understanding of the ecological processes that work in this vegetative formation
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