Most of the northeastern territory of Brazil is occupied by scrub, which is characterized by xerophytic
vegetation, different vegetation types and a biome considered more sensitive to human interference and
climate. This study aimed to characterize the floristic composition and structure of a fragment savanna
located in Chapada Moura region, at Farm Elmo Moreno Iguatu, Ceará state. Forty-five (45) plots of
10x20 m were established and all individuals with diameter ≥ 3 cm and height ≥ 1 m were measured.
Two thousand and two hundred fifty-six (2256) individuals ha
-1, representing 36 species, 29 genera and 13
families were observed. Species diversity was low compared to other vegetation types with Shannon Index
of 1.59.
Croton sonderianus
and
Combretum leprosum
were the species with the highest DoR, DR, F, IVC
and IVI followed
Pityrocarpa moniliformis. The presence of a large number of unique and rare woody
species shows that the work done so far has not yet sampled the diversity of species present in the different
regions of the Biome. This 70-year preserved area is still in early stages of ecological succession evidenced
by low species richness and greater occurrence of species of the genus
Croton.
