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Both Torn Webster and Toge
Johansson (August issue) seemed quite displeased at what I consider
to be Ruth Rosin's excellent guest editorial in the June issue.
In her editorial, Rosin wrote: "Touting the honey bee 'dance
language' hypothesis ... continues to delude beekeepers into
believing that use of the honey bee 'dance language' to communicate
with honey bees is some day still going to greatly help beekeepers.
It also prevents honey bee researchers from studying how they
could really help beekeepers by learning to maximally utilize
the ability of honey bees to find food by use of odor..."
During the last couple of years I have communicated extensively
with both Webster and Johansson and have furnished them with
a wealth of scientific evidence that differs from their religious-like
belief in bee language (much of the evidence furnished to them
gathered by bee language proponents themselves). Despite that
extensive effort on my part, Webster and Johansson provided Bee
Culture readers only with evidence and opinion that supported
their own fixed positions.
In a 1991 invited review article in a scientific journal (as
furnished to Webster), my co-workers and I illustrated how the
earlier results published by J. Gould, A. Michelson, and W. Kirchner
(as alluded to by Webster) actually countered the claims by those
researchers that they had "proved" that bee language
exists. Webster did not provide that input to Bee Culture
readers. However, scientists are expected to cite counter
evidence and claims.
Johansson failed to provide readers with a balanced account of
the excellent results obtained by John Eckert in the early 1930s.
Instead, Johansson wrote "The suggestion that bees locate
blooms by odor from downwind only is contrary to J.E. Eckert's
finding in 1933 that prevailing wind did not influence their
flight." By contrast, Eckert actually wrote on p. 282 of
his account, "The direction of the prevailing winds appeared
to have no definite relation to the principal direction in which
the bees were flying from the different apiaries." Thus,
that statement was not based on an actual experiment and was
not a "finding" by Eckert. At the time, Eckert had
no knowledge of competition between apiaries, a factor that could
determine the direction of flight lines.
In his selective reporting. Johansson failed to include another
quotation from Eckert in the same account: "The data in
table 11 and figure 6 shows that beyond a 0.5 mile radius the
bees distributed themselves principally in one direction."
A brief glance at the information in table 11 of Eckerts account
reveals that the principal flight directions were generally against
the prevailing wind direction! Neither did either letter writer
mention the existence of an excellent 1973 report by Larry Friesen,
one that documented the importance of wind direction during honey
bee recruitment to food sources. (That study was summarized in
our 1990 book published by Columbia University Press - a source
also not mentioned by either writer.)
Both letter writers thus continue the practice of bee language
proponents - focus on popular and semi-popular accounts that
support the hypothesis but ignore even later scientific contributions
that counter those claims.
Furthermore, language proponents seem no longer able to state
their belief in a simple scientific statement - one that can
be tested by experiment. Even though they reluctantly now admit
that odor is important, they seem unwilling to conduct even simple
experiments that could reveal information about the foraging
patterns of colonies with respect to prevailing wind direction.
We have now had the dance language hypothesis for a half a century,
with no noticeable advantage to beekeepers or growers. (And,
in science, a hypothesis that does not prove useful usually becomes
discarded long before that much time has elapsed.) How much longer
will beekeepers and growers remain in the dark about the importance
of wind direction in their operations - after all, odors can
only travel downwind!
1973 - Friesen, L. J., The
search dynamics of recruited honey bees, Apis mellifera ligustica
Spinola. Biological Bulletin. 144:107-131.
1990 - Wenner, A.M. and P.H. Wells., Anatomy of a Controversy:
The
Question of a "Language" Among Bees. Columbia University
Press.
1991 - Wenner, A.M., D. Meade, and L. J. Friesen., Recruitment,
search behavior, and flight ranges of honey bees. American
Zoologist. 31(6):768-782.
Adrian Wenner
Santa Barbara. CA
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