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Flower Long
Sugar high for bees (MIT)
A field of flowers may seem innocuous — but for the birds and bees that depend
on it for sustenance, that floral landscape can be a battlefield mined with
predators and competitors. The more efficient a pollinator is in feeding, the
less chance it has of becoming food itself.
Now mathematicians at MIT have found that efficient feeding depends on how
sugary a flower’s nectar is, and whether an animal dips or sucks the nectar
out. The researchers found that animals such as bees, which probe with their
tongues, are “viscous dippers,” and are most efficient when feeding on more
sugary, or viscous, nectar. Suction feeders, such as birds and butterflies
that draw nectar up through tubes, do their best when sucking up thinner, less
sugary nectar.
The difference, says John Bush, a professor of applied mathematics, may point
to a co-evolutionary process between flowers and their pollinators.
“Do the flowers want a certain type of bug or bird to pollinate them? And are
they offering up the nectar of their preferred pollinator?” Bush asks. “It’s
an interesting question whether there’s a correlation between the morphology
of the plant and the morphology of the insect.”
The researchers ...
Mr. flower