Flora of Brazilian humid Chaco: composition and reproductive phenology

By

Freitas, Tiago Green De
Souza, Camila Silveira De
Aoki, Camila
Arakaki, Luan Marcell Mitsuo
Stefanello, Thiago Henrique
Bagnatori Sartori, Ângela Lúcia
Sigrist, Maria Rosângela

Type

Article

Date of Publication

2013-10-1

Original Publication

Check list : journal of species lists and distribution

Volume

9

Series / Issue

Issue: 5

Pages

973--979

Contributed by

Pensoft Publishers

Language

English

Published by

[São Paulo, Brazil] Luís Felipe Toledo 2005-

Identifiers

DOI: https://doi.org/10.15560/9.5.973

 

Abstract

We present the floristic composition and reproductive phenological data for a remnant of Arborized Stepic Savanna, vegetation type of humid Chaco, Porto Murtinho, Mato Grosso do Sul State, Brazil. We recorded 87 species of 31 families; Leguminosae presented the highest richness (14 species), followed by Malvaceae (9), Cactaceae (7) and Asteraceae (7). The herbaceous layer is relevant in the seasonal studied community (53.5% of the species) and there is predominance of non-perennial species (hemicryptophytes and therophytes), which demonstrate the importance of underground structures or seed banks in the vegetation. The community has continual flowering and fruiting with highest intensity in the rainy season, the most favorable period for plant growth and reproduction. The predominance of autochoric species in relation to anemochoric and zoochoric ones suggests partial independence of seed/fruit dispersal agents. Zoochorous species predominated in the rainy season, whereas anemochorous and autochorous species were more representative in the dry season.