Publications

sexual differences in reproductive phenology and their consequences for the demography of baccharis dracunculifolia (asteraceae), a dioecious tropical shrub.	patterns of phenological variation and reproductive investment were studied in the dioecious shrub baccharis dracunculifolia dc (asteraceae), and possible consequences on survivorship were evaluated. the sex ratio was determined in a natural field population (n = 921) of b. dracunculifolia in belo horizonte, brazil. fifty-two males and 56 females were sampled at random from this population. during the reproductive season of 1999, inflorescence production, shoot growth and mortality, and xylem wa ...	2003	12495915
direct evidence for the plant origin of brazilian propolis by the observation of honeybee behavior and phytochemical analysis.	to identify the plant origin of brazilian propolis directly, we observed the behavior of honeybees in minas gerais state of brazil. honeybee workers bit and chewed leaves of the plant, baccharis dracunculifolia, packed the material into their pollen basket, brought it back to their nest, and used it as propolis. we collected the leaves of b. dracunculifolia and propolis, and compared their constituents by liquid chromatography-mass spectrometry (lc/ms) analysis. there was no difference between t ...	2003	12808259