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Poliniza??o e dispers?o de sementes em Myrtaceae do Brasil

DOI: 10.1590/S0100-84042006000400002

Keywords: myrtaceae, pollination, seed dispersal, reproductive ecology, tropical forest.

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Abstract:

myrtaceae is one of the most important plant families in brazilian vegetation, especially forests. its white, hermaphrodite flowers, with numerous stamens, and the fleshy fruits are exploited by a variety of animal species. this revision aimed to summarize the knowledge of the reproductive ecology of brazilian myrtaceae, bringing together information about the pollinators and seed dispersers of a great number of species. data were compiled from the literature, complemented with unpublished information from the authors and other researchers. the majority of the pollination studies were carried out in cerrado vegetation, whereas seed dispersal studies were conducted mainly on atlantic forest. pollen is the major resource offered by myrtaceae flowers. the flowers are visited mainly by bees, the pollinators of almost all species studied until now. the greatest number of visits to flowers is from meliponinae and bombinae bees (apidae). other insects such as flies and wasps also visit myrtaceous flowers, occasionally acting as pollinators. bird pollination was reported for acca sellowiana (o. berg) burret and myrrhinium atropurpureum schott, in which the main floral resource are the fleshy and sweet petals. birds and monkeys are the main seed dispersers of brazilian myrtaceae, although other mammals, reptiles, fish and ants may interact and casually disperse seeds. information on the pollination and seed dispersal agents of myrtaceae in brazil are still scarce, and its knowledge is essential to species preservation and the conservation of the brazilian forests.

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