Do pollen thieves and nectar robbers reduce flower attractiveness to bumblebee pollinators in Impatiens oxyanthera?
Tag - dichogamy
William Salter
Aconitum offers bees more nectar to carry its toxic pollen
Male flowers of Aconitum protect their pollen by adding alkaloids. Without pollen as a reward, botanists asked how the flower compensated pollinators.
Dale Maylea
Accurate position exchange of stamen and stigma resolves the herkogamy dilemma in a protandrous plant, Ajuga decumbens (Labiatae)
Spatial separation of stamen and stigma (herkogamy) is an effective way for angiosperm species to reduce sexual interference and prevent self-pollination. It can however also reduce the possibility of pollinators...
Flowers evolve to balance the risks and rewards of self-pollination
The longer a plant waits to self-pollinate, the longer it has to attract pollen from outside. But waiting too long can have consequences.
Alun Salt
Herkogamy and dichogamy in style dimorphic flowers of Narcissus broussonetii (Amaryllidaceae)
Across the plant kingdom, there is an extraordinary diversity of flower forms, many of which are related to variation in the morphology and arrangement of reproductive organs. To prevent self-pollination, plants have...
Outbreeding and inbreeding strategies in plant communities of the Venezuelan Gran Sabana Plateau
Ramírez and Hokche evaluated the breeding system, sexual system, dichogamy and herkogamy of herbaceous-shrubby communities from the Gran Sabana Plateau, Venezuela
Plant biotic interactions and fitness in habitat edges
Habitat variations influence the richness and composition of insect guilds. This affects plant reproduction, which depends upon functional relationships with insects involving both pollination and predation. The impact...
AoBPLANTS
Heterodichogamy and thrips-pollination in Platycarya strobilacea
Platycarya strobilacea (Juglandaceae) is heterodichogamous - based on observations of inflorescence architecture, sexual expression and pollination biology.
botanyone
In the right place at the right time for pollination
Parnassia epunctulata, a herb with generalized pollination, which exhibits sequential stamen movement.
AJ Cann
Shifts in mating systems under contrasting environments
Establishment of plant populations in novel environments may generate shifts in floral traits and plant mating systems.
Stamen movements and pollination in Ruta
In Ruta graveolens each stamen elevates to above the flower’s centre for anther dehiscence and then falls back before the next stamen elevates, producing a one-by-one rising and falling pattern of movement. Ren and Tang...
Floral traits mediate the pollination role of bees
Pollen-collecting bees are the most important pollinators globally, but are also the most common pollen thieves and can significantly reduce plant reproduction. Hargreaves et al. investigate whether floral...
