Botanical structure of two urbansecondary forest and associations with meliponiculture in eastern Amazon

Abstract

The structure of urban secondary forests and their potential for meliponiculture in the eastern Amazon was studied in the municipality of Belterra, Pará. The sampling was carried out in 25 plots of 40 m2 in two areas (0.1 ha) of secondary forests (SF), in which three classes of DBH values were considered (C1:1 cm ≤ DBH ≤ 5 cm; C2: 5 cm < DBH ≤ 10 cm and C3: DBH ≥ 10 cm). a total of 230 individuals were registered in SF I, comprising 66 species and 27 botanical families and 185 individuals in SF II, comprising 43 species distributed in 24 botanical families. The highest richness and abundance were verified for C1, followed by C2 in both areas. In SF I, the basal area values (G=1.509) were higher than in SF II, while the total volume (V=20.21) was higher than SF I, the mean height for C3 was higher in SF II, and C1 and C2 were higher in SF I. The Shannon-Wiener diversity index was higher in SF I (H = 3.722) than in SF II (H=3.197). It was observed that 75% species have bee pollination systems (mellitophilous flora) and are thus considered sources of honey resources.

Keywords:
Secondary succession; Biodiversity; Mellitophilous flora, bees, Meliponiculture