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From: "deelusbybeekeeper" <deelusbybeekeeper@excelonline.com>
Date: Fri, 12 Jan 2001 12:19:42 -0800
To: <BiologicalBeekeeping@egroups.com>
Subject: Re: cell size in supers
Hi to all on Biological Beekeeping
Helmut wrote the following:
> If larger drone also
has the
> appropriate larger tool , then it might not fit the reduced
size of the
> queen and therefore mating is not possible ???
Reply:
Helmut, I would not exactly say that mating is impossible, but
highly
unlikely though, but for probably other reasons.While Drs. Nathan
M Schiff
and Walter S. Sheppard have written in papers in the Journal
of Economic
Entomology as far back as 1995 that the lack of A.m. mellifera
haplotypes in
the commercial population is indicative of restricted gene flow
between
feral and commmercial populations, I believe tht it is more appropriately
relative to size of the drones involved vs the size of the queens,
as well
as overuse of artificial insemination technology.
It is known that the specific
gravity of the bee changes with enlargement of
size by artificial mutation through use of bigger cell bases,
however, this
is detrimental aerodynamically. To have the same amount of muscle
covering a
larger area makes for less overall effectiveness of flight, which
includes
speed. Also, as the bees enlarge with cell size artificially,
the wings do
not enlarge proportionally, in relation to the size of the thorax,
adjusted
by the width of the cell, creating thus workerbees, then thus
enlarged
drones and subsequently the queens, that cannot carry pollen
and honey at
the same time and thus necessatating more trips to the field.
Also, the
slower speed that goes with being bigger, also makes for less
trips being
able to be accomplished, on top of the fact that the poor bees
now need to
make more, because they cannot carry so much. Now as the workerbees
get
bigger, along with the drones and then the queens artificially,
problems
arise.
Namely, enlarged domesticated
drones have problems ketching faster flying
smaller natural sized queens, which makes for artificially restricted
gene
flow. Also enlarged domesticated queens fly slower than the quicker
feral
drones and are easily hit upon by them. In an area with few commercial
outfits, like in many of our western states, the feral then pulls
apart the
domesticated strains quite easily. In an area with heavy commercial
outfits
and good domestic sphere of influence and killing off of feral
bees, this is
counterbalanced with the abundance of artificially enlarged drones,
in ratio
to feral drones, and you don't see it so much, as in the north
eastern part
of the US.
However, with the advent of
parasites now and the larger artificial system
falling apart, as nature tries to correct its problem, this enlarged
drone
dominance with spheres of influence, is quickly falling apart
and the feral
survivers are now gaining more numbers.I don't think that many
larger
beekeepers will have perpetual money to fight mother nature for
the rest of
their lives. They will eventually be forced to change, to go
back to what
works, or go broke.
Helmut also wrote:
> I wonder if one purchases
a queen off the market with her genes adjusted
> to larger cell brood, will it not mess up what you are trying
to
> accomplish ???
Reply:
It certainly will not make
you work any easier, Helmut. Better to go into a
pattern of holding and expanding what you have,acclimatized to
your own
area, than buy something that defeats your intended purpose and
keeps your
problems going with mites and secondary diseases.
Reply:
> Any ideas what breeders
are doing nowadays ???
Some are already starting to
size down for the coming market and also not
wanting to perpetuate stocks that will not stand on their own.
But like
anything else, the idea starts small for change and then gains
speed as
problems arise.
Regards,
Dee A. Lusby
Tucson, Arizona
USA
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