[Pollinator] [beemonitoring] Is B. citrinus....disappearing

[John Purdy]

is there a formal population tracking program?  In the Canpolin research
consortium we had projects with pan traps operated by volunteers.  I can
get details from Lawrence Packer at York Univeristy if you are interested.

On Thu, Dec 4, 2014 at 1:58 PM, Lisa Horth <lisahorth at gmail.com> wrote:

> Here in Norfolk, VA this fall we had 25 B.impatiens and 0 B.citrinus.
>
>
> On Tue, Dec 2, 2014 at 10:16 AM, 'Droege, Sam' sdroege at usgs.gov
> [beemonitoring] <beemonitoring-noreply at yahoogroups.com> wrote:
>
>>
>>
>> All:
>>
>> Several people have mentioned to me that B. citrinus is hard to find.  I
>> looked our data today and found the following patterns:
>>
>> Years 2002-2014 (still a lot of 2014 data to enter)
>>
>> Data are collected for lots of different reasons, but always throughout
>> the year.  Note that like other Bombus, B. citrinus do occur in pan traps
>> but not seemingly in greater or lesser percentages from B. impatiens.
>>
>> [image: Inline image 1]
>>
>>
>> The ratio is the ratio of B. citrinus to B. impatiens.
>>
>> B. impatiens is the presumed primary host for B. citrinus
>>
>> Looks like a tanking situation to me.
>>
>> sam
>>
>>
>> The February Bee
>>
>> The bumblebee crept out on the stone steps.
>> No roses. Nothing to gather.
>> Nothing but itself, the cold air,
>> and the spring light.
>> It rubbed its legs together
>> as if it wished to start a fire
>> and wear its warmth.
>> Under its smart yellow bands
>> the black body shone like patent leather.
>> It groomed itself, like a pilot
>> ready for takeoff and yet not ready:
>> when my shadow fell over him
>> he flicked his wings, checking them,
>> and took off into the bare garden.
>>
>> - Nancy Willard
>>
>>
>>
>> --
>> *Bees are Not Optional*
>>
>> *Apes sunt et non liberum*
>>
>>  __._,_.___
>>   ------------------------------
>> Posted by: "Droege, Sam" <sdroege at usgs.gov>
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>
>
>
> --
>
> Associate Professor
> Dept of Biological Science
> Old Dominion University
> Norfolk, VA 23529
> lhorth at odu.edu
>
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-- 
John Purdy PhD
Environmental Scientist
Abacus Consulting Services Ltd
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