Fenologia reprodutiva, polinizadores e dispersores de Bactris gasipaes Kunth., no município de Tefé, Amazonas

Abstract

Seed dispersal is a common and fundamental ecological activity in tropical forests around the world. Plant propagation by seed dispersal is recognized as one of the fundamental factors affecting plant recruitment and is an important step in the reproductive cycle of most of them. About 98% of the angiosperms are pollinated by animals (zoocoria), showing their efficiency with respect to their reproduction. In this context, the present research was developed to study reproductive phenology and to recognize the dispersers and pollinators of Bactris gasipaes Kunth (common pupunha) in the rural area in municipality of Tefé - AM. The study was conducted in a tropical forest, in the road of the Emade (Km 01), rural area of the municipality, with about 36 palm trees, between the months of May to November of 2016. For the collection of data was prepared a form pre-defined , it was containing basic requirements for date of observation, observer's name, time, code and / or number of the individual, presence of flowers and fruits, and species of observed pollinators and dispersers. From the seven months in which the present research took place, only four of these were found to have inflorescences in the peach palm trees. Regarding the fruiting practically in every month, the frequency of fruit production was remarkable. There was no evidence of the existence of dispersing agents during the conduction of the research. However, insects of the genus Phyllotrox of the family Curculionidae, a fruit fly species (Drosophila sp.) and five types of bees of the genus Trigona and Apis.