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Acta Amazonica

Print version ISSN 0044-5967

Abstract

STEFANELLO, Daniel et al. Syndromes of diaspores dispersal of species of riparian vegetation of the river from Pacas, Querência - MT. Acta Amaz. [online]. 2010, vol.40, n.1, pp. 141-150. ISSN 0044-5967.  http://dx.doi.org/10.1590/S0044-59672010000100018.

The adaptations of plants, as its agents dispersers correlated with the morphological characteristics of each specie and family, and with the region in which it dominates, and the seeds progressed according to the dispersors. The zoochory is the most frequent seed dispersal in the tropical forest, hence the importance in the conservation of ecological corridors, which allowed the spread of species of a fragment to another. Given the fact, this study aimed to trace the major processes of the seed dispersal of species occurring in the Riparian Evergreen Seasonal Forest areas of the Pacas river, Querência - MT, to identify the main dispersal type. The informations on dispersal syndromes were collected in the field during the sampling the vegetation, wich was divided in strata, according to the eight of the individuals sampled. We identified 69 species, belonged 51 genera and 31 botanic families. The families with the greatest richness were Annonaceae and Fabaceae, which showed the greatest variety syndromes. The zoochory were syndrome the more important, with 86% the total species, followed by anemochory (10%), autochory (3%) and barochory (1%). The lower (understory) and intermediate (canopy) strata have percentage zoochoric species higher than upper stratum (emergente), where the anemochory was the more important. These results demonstrate the strong relationship between the vegetation and animals in the maintenance of plant populations in the riparian environment and the importance of maintaining ecological corridors between forest fragments.

Keywords : Riparian forest; seed; zoochory; anemochory.

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