Flora e aspectos auto-ecológicos de um encrave de cerrado na chapada do Araripe, nordeste do Brasil

• Autor(a) principal: Costa, Itayguara Ribeiro da
• Data de Publicação: 2004
• Outros Autores: Araújo, Francisca Soares de, Lima-Verde, Luiz Wilson
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da Universidade Federal do Ceará (UFC)
• Texto Completo: http://www.repositorio.ufc.br/handle/riufc/63303
• topic: Cerrado; Flora vascular; Dispersão; Fenologia; Formas de vida; Cerrado; Vascular flora; Dispersal syndromes; Phenology; Life forms

(Flora and autecology’s aspects of a disjunction cerrado at Araripe plateau, Northeastern Brazil). This study subject to investigate the floristic composition and richness, the reproductive phenological patterns, the dispersal syndromes and life forms of species of a disjunt cerrado in semiarid climate at Araripe plateau during a one year period. We found 107 species and 41 families. Fabaceae, Myrtaceae, Poaceae, Apocynaceae, Euphorbiaceae and Malpighiaceae showed the largest number of species. For 47 of the woody species found, we studied the geographical distribution based on 27 papers of the Brazilian cerrados. Twelve species are of widespread occurence in the cerrado, and 13 are restricted to the Araripe plateau. Zoocory, autocory, and anemocory are the predominant syndromes of dispersal. The predominant life forms were phanerophytes (50.7%), hemicriptophytes (14.9%) and camephytes (13.1%). The cerrado of Araripe have lower species richness than continous cerrados, but a similar pattern of reproductive phenology, dispersal syndromes and life forms in more humid zones.