| effect of nectar secretion rate on pollination success of passiflora coccinea (passifloraceae) in the central amazon. | the pollination of passiflora coccinea by the hummingbird phaethornis superciliosus was studied in central amazon, brazil. we hypothesized that a greater nectar secretion rate (nsr) increases the pollination success of single flowers through ph. superciliosus visiting behavior. for control flowers, nsr was an increasing function of flower base diameter (fbd). the total number of ph. superciliosus probes per flower was an increasing function of fbd. additionally, deposition of pollen on stigmas i ... | 2006 | 16906307 |