Título:	Phytosociology, diversity and floristic similarity of a Cerrado fragment on Southern Ceará state, Brazilian Semiarid.
Autoria:	CALIXTO JÚNIOR, J. T. MOURA, J. C. de LISBOA, M. A. N. CRUZ, G. V. GONÇALVES, B. L. M. BARRETO, E. S. de S. T. BARROS, L. M. DRUMOND, M. A. MENDONÇA, A. C. A. M. ROCHA, L. S. G. SILVA, M. A. P. da CORDEIRO, L. S.
Afiliação:	JOÃO TAVARES CALIXTO JÚNIOR, Universidade Regional do Cariri – URCA, Crato, CE JOSÉ CÍCERO DE MOURA, Universidade Regional do Cariri – URCA, Crato, CE MARIA AMANDA NOBRE LISBOA, Universidade Regional do Cariri – URCA, Crato, CE GABRIEL VENÂNCIO CRUZ, Universidade Regional do Cariri – URCA, Crato, CE BRENDA LUANA MUNIZ GONÇALVES, Universidade Regional do Cariri – URCA, Crato, CE EDUARDO SAMPAIO DE SOUSA TAVARES BARRETO, Universidade Regional do Cariri – URCA, Crato, CE LUIZ MARIVANDO BARROS, Universidade Regional do Cariri – URCA, Crato, CE MARCOS ANTONIO DRUMOND, CPATSA ANA CLEIDE ALCÂNTARA MORAIS MENDONÇA, Universidade Regional do Cariri – URCA, Crato, CE LEONARDO SILVESTRE GOMES ROCHA, Universidade Federal Rural do Rio de Janeiro MARIA ARLENE PESSOA DA SILVA, Universidade Regional do Cariri – URCA, Crato, CE LUCIANA SILVA CORDEIRO, Universidade Regional do Cariri – URCA, Crato, CE.
Ano de publicação:	2021
Referência:	Scientia Forestalis, v. 49, n. 130, e3459, 2021.
Conteúdo:	There is a lack of studies on phytosociology of Cerrado fragments within the Caatinga biome, located in the Southern region of Ceará State, associated to the Brazilian Crystalline Shield geological formation. Thus, contributing to the diagnosis and knowledge of this plant community, a survey on the general flora and especially the structure of arboreal vegetation was made. Every individual with SND ≥ 3cm (total height), within 12 parcels with 12x30 m (0.432 ha) of area was sampled. The floristic similarity was calculated by the Jaccard index, in comparison with ten other Brazilian Cerrado areas. Fourty-six species distributed in 22 families were found, comprising a total of 906 individuals, with AD=2,097.22 ind.ha-1. The highest abundance was found within families Fabaceae (20.31%) and Vochysiaceae (19.98%). Qualea parviflora, Annona leptopetala, Hymenaea stignocarpa and Callisthene fasciculata had the highest IVI index species. The calculated biodiversity indexes were: alpha diversity of Shannon (H’) = 3.8 and equitability of Pielou (J’) = 0.83. The results obtained show the area as a vegetation relict, under threat due to the penetration of Caatinga species, climatic changes, insufficient conservation efforts and fast anthropic deforestation. As a result, this relict area tends to shrink to a fragment much smaller than it was in the past.
Thesagro:	Vegetação Caatinga Flora
NAL Thesaurus:	Phytosociology
Palavras-chave:	Serra do Boqueirão Manchas de Cerrado Lavras da Mangabeira Vegetação arbórea
Digital Object Identifier:	https://doi.org/10.18671/scifor.v49n130.01
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CPATSA)