Ratnieks a no insulation and winter ventilation advocate

[user 6228]

I can add another entomology proffessor to the list who does not distinguish between heat loss and temperature difference...
and the chesnut "bees heat the cluster not the hive"....

http://www.lasiqueenbees.com/how-to/autumn-preparation-of-hives-for-winter

 

[jenkinsbrynmair]

Well, you know my opinion of the bloke anyway.................

 

[Erichalfbee]

I can add another entomology proffessor to the list who does not distinguish between heat loss and temperature difference...
and the chesnut "bees heat the cluster not the hive"....

http://www.lasiqueenbees.com/how-to/autumn-preparation-of-hives-for-winter

Not surprising. Anyway he "learned" his beekeeping in The USA
Maybe just as well. Opening up an active insulated hive in the middle of winter to scrape out brood might result in lots of airborne bees not making it home

 

[Finman]

"bees heat the cluster not the hive"....

[/url]

What I can add to that is: Listen to bees

 

[jenkinsbrynmair]

bet he's got more degrees than you

 

[Finman]

bet he's got more degrees than you

Yes. I have only Celsius and he has Fahrenheit. IT is much more. 100 F = 37C.

.
Almost 3 times more degrees than me.

.

 

[Swarm]

and the chesnut "bees heat the cluster not the hive"....

A bit like Emperor penguins then, they heat the huddle.

 

[pargyle]

Yes. I have only Celsius and he has Fahrenheit. IT is much more. 100 F = 37C.

.
Almost 3 times more degrees than me.

.

Actually .... that was funny finny ....

 

[user 6228]

A bit like Emperor penguins then, they heat the huddle.

The statement is only valid when the enclosure surrounding the huddle/cluster has for all practical purpose infinite conductance... While you can argue that for the penguins outside in the winter antartic in gales with driving snow or under a clear night sky, its really not true for honey bees inside a tree. You can try to make it true by making their box really thin and then open the top, but even then you will get a temperature difference

 

[Swarm]

I see it as basically the same principle just different extremes, a bit like it would be comparing all the various examples of natural nest.

 

[Hivemaker.]

I see it as basically the same principle just different extremes, a bit like it would be comparing all the various examples of natural nest.

Like the giant honey bee, that makes it's nest on the outside of a tree, on a branch.

 

[Finno]

almost 3 times more degrees than me

��������

 

[user 6228]

Like the giant honey bee, that makes it's nest on the outside of a tree, on a branch.

appart from the branch and the empty comb also having a finite lumped conductance

(empty comb is very good insulator)

so they are quite a few rungs up from the penguins in organising a lower conductance nest.

 

[Fusion_power]

A. Laboriosa lives in the Himalayas at altitudes that often see freezing temps. They build their exposed combs on rock faces and under overhangs. They seem to know how to keep brood warm.

 

[Hivemaker.]

appart from the branch and the empty comb also having a finite lumped conductance

(empty comb is very good insulator)

I imagine the single comb is usually filled with food and brood.

 

[Finman]

A. Laboriosa lives in the Himalayas at altitudes that often see freezing temps. .

Have you been there? Or how you know.

As far I understand, giant honeybee migrates according seasons to avoid unfavorite environment.

 

[Finman]

(empty comb is very good insulator)

.

If combs are not in the box, bees consume their winter stores in couple of months. They will not see next spring. Not even Christmas.
.
Most of Apis cerana combs hang in open air .

 

[Hivemaker.]

If combs are not in the box, bees consume their winter stores in couple of months. They will not see next spring. Not even Christmas.

Here some do though.

 

[Swarm]

Evolution is a strange thing isn't it? Fancy animals deciding to head for colder conditions than those they knew. Polar bears head out onto the ice when winter arrives, male Emperor penguins huddle up in the most extreme conditions and Honeybees left their warm home and some even ended up in miserable Britain. Very strange.

 

[Finman]

Evolution is a strange thing isn't it? Fancy animals deciding to head for colder conditions than those they knew. Polar bears head out onto the ice when winter arrives, male Emperor penguins huddle up in the most extreme conditions and Honeybees left their warm home and some even ended up in miserable Britain. Very strange.

IT is only 30 km to Europe.