At least half of the 3600 species of Bromeliaceae are pollinated by hummingbirds. There is
little doubt that the four to 12 evolutionary shifts towards and c. 32 shifts away from …

Nectar is the most common floral resource that mediates plant–pollinator interactions, and its
spatiotemporal distribution is related to pollinator attraction and can influence pollinator …

Nectar is an important floral resource, often representing the only source of water for
pollinators in arid environments. We investigated whether successive nectar removal would …

Plant sexual and breeding systems, temporal variations in sex expression, and herkogamy
were investigated. Of the 294 plant species surveyed, 73.8% were hermaphroditic, 18.7 …

Knowledge of the patterns of variation in plant mating systems and fitness, in the context of
conservation biology, is essential for understanding microscale differences and their …

Abstract The genus Dyckia (Bromeliaceae) is endemic to South America, and its species
show important ecological roles in xeric environments. The flowering phenology as well as …

To determine whether visits by wild pollinators correspond well with the physiological
patterns of animal-pollinated crops, we investigated the diurnal dynamics of nectar secretion …

The herbaceous vine Mandevilla funiformis (Vell.) K. Schum. occurs in open vegetation in
the Southern Brazil. The present study was carried out in a sandbank, east of Florianópolis …

The pollination syndrome hypothesis usually does not successfully apply to the diversity of
floral phenotypes or help predict the pollinators of most plant species. In Bromeliaceae …

• Antecedentes e objetivos: Espécies congêneres apresentam várias características
reprodutivas semelhantes e podem competir pelos serviços prestados pelos polinizadores …