Journal
JOURNAL OF TROPICAL ECOLOGY
Volume 16, Issue -, Pages 733-746Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S0266467400001681
Keywords
amazonia; Augochlorini; bat-pollination; bee-pollination; Halictidae; Leguminosae; Megalopta; melittophily; Parkia; nocturnal pollination
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Canopy observations of the rain forest tree Parkia velutina (Leguminosae: Mimosoideae) in Amazonian Brazil indicate that it is pollinated by night-flying bees. The small red flowers are organized into spherical heads; they open in the late afternoon and attract Megalopta bees (Halictidae: Augochlorini) which forage for pollen after dark. In contrast to the numerous bat-pollinated species of Parkia, no nectar was detected. Nocturnal melittophily is proposed as a possible intermediate stage in the evolution of chiropterophily from diurnal entomophily in Parkia.
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