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correlation in winter losses

 
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zaunreiter
Moderator Bee


Joined: 26 Nov 2007
Posts: 3097
Location: Germany, NorthWest

PostPosted: Wed Nov 05, 2014 3:37 pm    Post subject: correlation in winter losses Reply with quote

Try to find correlation in international winter losses:
See:
http://immenfreunde.de/forum/download/file.php?id=1480

Does anyone have the offical winter loss rates in the UK? For the last decade?
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Adam Rose
Silver Bee


Joined: 09 Oct 2011
Posts: 586
Location: Manchester, UK

PostPosted: Wed Nov 05, 2014 4:24 pm    Post subject: Reply with quote

From http://www.nationalbeeunit.com/index.cfm?pageid=203 :

Key Points from the 2012-13 Husbandry Survey

• We obtained useful information about beekeeping practices from 1248 beekeepers from over 80 counties across England and Wales.

• The average length of time beekeepers have kept bees is 11.2 years with 11% of beekeepers keeping bees 2 years or less.

• Beekeepers most commonly produced 1-10 kg of honey per colony, whereas 0.9% of beekeepers produced over 50 kg per colony.

• Overall, using internationally recognised calculations from the COLOSS network (http://www.coloss.org/), winter losses from 2012-2013 were calculated as 29.4%.

Can't find good historical data though ...
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Adam Rose
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Joined: 09 Oct 2011
Posts: 586
Location: Manchester, UK

PostPosted: Wed Nov 05, 2014 4:37 pm    Post subject: Reply with quote

http://www.bbka.org.uk/files/pressreleases/bbka_winter_survival_release_18_june_2014_1403026705.pdf has some better data, although it only goes back 5 years or so.
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zaunreiter
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Joined: 26 Nov 2007
Posts: 3097
Location: Germany, NorthWest

PostPosted: Thu Nov 06, 2014 8:46 am    Post subject: Reply with quote

Thanks Adam!

I just integrated the numbers into:

http://immenfreunde.de/forum/download/file.php?id=1481
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zaunreiter
Moderator Bee


Joined: 26 Nov 2007
Posts: 3097
Location: Germany, NorthWest

PostPosted: Fri Nov 14, 2014 1:49 pm    Post subject: Reply with quote

Updated the chart with Canada:
http://immenfreunde.de/forum/download/file.php?id=1490

Data from:
http://www.capabees.com/content/uploads/2013/07/2014-CAPA-Statement-on-Honey-Bee-Wintering-Losses-in-Canada.pdf
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