Transition Studies in Flowering Plants  

by Rolf Baumberger

Flower Pollinators

The primary pollinator of red flowers is the hummingbird Calypte anna. This bird can also be observed pollinating pure yellow australis populations, although those flowers are even pollinated by insects (hawkmoth syndrome).











  

Make a comment:

Tom Somers
13.05.2019 00:41:49
It’s not clear to me what you mean by “flitting.”
Kommentar:
With flitting is meant if a flower cannot keep the color or shape stable during anthesis. With Diplacus, the flowers become larger within 4 to 5 days and brighter in the shade. Stable Diplacus individuals do not show this behavior. Now you can show that this flutter has something to do with the transformation of the flower. The flower shape can switch back and forth for a while between the two stages - flitting or flutter. The flutter becomes less and less pronounced over time until finally, only the red stable state is visible during the entire flowering period of an individual.
rolfy
P.S.
Maybe that I have to skip this expression sometimes - for a word that expresses pendulous shifting
Daniel Grimm
22.03.2018 18:22:08
An impressing study. Question: why do the plants start changing their colors? Mutation caused by what trigger factor?
Daniel
Kommentar:
It's not easy to explain this because nature is not answering questions of this kind. - Global warming could be the main reason that brings, in turn, lots of migrating nectar feeding hummingbirds from the South.
These birds build up a triggering constraint for the yellow flowering plants, and these will swap finally to the red flowering side and serve new as nectar proliferators for hummingbirds.
rolfy

Mail to: rolfy.baumberger@gmail.com, Zurich Switzerland