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Re: [beemonitoring] Duration of Pollen Viability in a beehive

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  • Jack Neff
    Linda: Have your checked Dafni & Firmage, 2000 Pollen viability and longevity: practical, ecological and evolutionary implications Plant Systematics and
    Message 1 of 10 , Feb 10, 2010
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      Linda:  Have your checked Dafni & Firmage, 2000 "Pollen viability and longevity: practical, ecological and evolutionary implications" Plant Systematics and Evolution.  222: 113-132 or Kraal, 1962 "How long do honey-bees carry germinable pollen on them?" Euphytica 11: 53-56.  Moistened corbicular pollen has zero longevity since the added nectar causes osmotic havoc but longevity of the loose stuff will vary with the species and environmental conditions.  While some pollen can be quite long lived (i.e. some orchid pollinaria), most pollen life spans are in days or even hours.  You might also want to check DeGrandi-Hoffmann et al 1986 "Influence of honey bee in-hive pollen transfer on cross-pollination and fruit set in apple"  Environmental Entomology 15:7823-735 who propose that pollen transfer by jostling workers in the hive explains high fruit set in apple orchards where individuals workers show high constancy to particular varieties (clones).
      I believe this was later questioned because of the extent of grooming.


      John L. Neff
      Central Texas Melittological Institute
      7307 Running Rope
      Austin,TX 78731 USA

      From: Linda Newstrom <newstroml@...>
      To: Sam Droege <sdroege@...>; "beemonitoring@yahoogroups.com" <beemonitoring@yahoogroups.com>
      Sent: Sun, February 7, 2010 9:06:52 PM
      Subject: [beemonitoring] Duration of Pollen Viability in a beehive


      Hi everyone

      Can anybody lead me to people or literature on the topic of how long pollen on bees will remain viable?

      That is, if a beekeeper moved the hives from one farm to another would the pollen on the bees still be able to contaminate the crop in the new location (e.g., GM crops or seed certification issues)?




      Linda Newstrom-Lloyd


      Phone DD +64 3 321 9853

      Phone Home +64 383 4047

      Mobile 021 385 953


      From: beemonitoring@ yahoogroups. com [mailto:beemonitori ng@yahoogroups. com] On Behalf Of Sam Droege
      Sent: Saturday, 6 February 2010 11:11 a.m.
      To: beemonitoring@ yahoogroups. com
      Subject: RE: [beemonitoring] Measuring Osmia Phenology as a Measure of Climate Change - Feedback




      Actually you are right it is useful for documenting phenologies, which one would think would be known, but you are right I can't think of any off the top of my head.  However, some of the aggregate nesting bees must have had someone plot out the general ebb and flow of numbers in some paper....

      Yes, it should be a nice correlate with the plant data...and a good test into some of the notions that people have that plant and bee phenologies may go out of sync in some climate change scenarios.

      Since my long-term monitoring hat is usually the one I wear I didn't thing about the basic science idea that you had...it would actually be a very good first entree into the system.  Since funding groups generally like open-ended monitoring programs (sigh) your idea would actually be more fundable than a Climate Change one, but would easily morph into a CC as the year's progressed.

      I am actually more afraid of too many participants than too few, given that there I was going to do project in my spare time....however, if we could send western nests to you...that would allow a great deal of expansion.  Once the system is in place for uploading the pictures...there is little penalty for adding more people...its the nest processing that will add up.

      So, bottomline, yes, we should go for it, but would need to make sure we have the ability to open and run nests later this year.  I am going to be looking at a bunch of Wayne's nests in a week or so, to get a sense of how that works.

      There is also the need to come up with a good trap nest design...(that can be built at home...without a drill!)


      Sam Droege  sdroege@usgs. gov                      
      w 301-497-5840 h 301-390-7759 fax 301-497-5624
      USGS Patuxent Wildlife Research Center
      BARC-EAST, BLDG 308, RM 124 10300 Balt. Ave., Beltsville, MD  20705
      Http://www.pwrc. usgs.gov

       Further in Summer than the Birds
      Pathetic from the Grass
      A minor Nation celebrates
      Its unobtrusive Mass.

       No Ordinance be seen
      So gradual the Grace
      A pensive Custom it becomes
      Enlarging Loneliness.

       Antiquest felt at Noon
      When August burning low
      Arise this spectral Canticle
      Repose to typify

       Remit as yet no Grace
      No Furrow on the Glow
      Yet a Druidic Difference
      Enhances Nature now

                       -- Emily Dickinson


      "Cane, Jim" <Jim.Cane@ARS. USDA.GOV>


      <beemonitoring@ yahoogroups. com>


      02/05/2010 02:41 PM


      RE: [beemonitoring] Measuring Osmia Phenology as a Measure of Climate Change - Feedback

      Sent by:

      beemonitoring@ yahoogroups. com



      Sam and others- first, let me say that this is a great concept!  But before jumping to the Holy Grail,  finding a response to climate _change_, it will be useful (very!) to even measure, map and predict the range of their phenologies across the continent, which won’t require such long time series data.  I don’t believe that such exists for any solitary bee, does it? For this bee, we know that timely emergence involves first the satisfaction of accumulated chill hours, followed by some moderate amount of heat unit accumulation.  Importantly, I think that it would also be grand to link the proposed measures to lilac bloom phenology, using the National Phenology Network, for then it would also allow for interpolation between points where we would have no Osmia lignaria data but where we do have lilac phenology data (and their powerful modeling abilities to boot).  I’ve found the lilac monitoring to be pretty painless provided you have them growing where you can check every day or two just during bloom (mine are on my bike ride home and at my house and our lab, one set right next to the campus NOAA weather station).  Read about it at:


      http://www.usanpn. org/


      Besides lilac, I think that the other really dandy relevant plant whose bloom is being monitored nation-wide is forsythia,

      http://www.usanpn. org/?q=Forsythia _spp

       I recollect that its bloom precedes fruit tree bloom by a little bit, and so O. lignaria.  Imagine being able to advise someone in some distant and unfamiliar state that x days after forsythia blooms where they live (and many people recognize forsythia), they should deploy their O. lignaria, or look for first nesting, or whatever.  We can’t do they very well right now.


      If one wanted to document climate change, last year and this year would make for a great comparison in the Intermountain West, as last year the cool spring delayed O. lignaria emergence by 3 weeks across the region.  This year they are more likely to be on time, so a 3-week jump in emergence!  I am saying this in jest, but to make a point that the noise from inter-seasonal variation will greatly confound any subtle background trend, or make for false early interpretations.  Conversely, learning if bee emergence can be tied to or predicted by any other tracked phenological event (such as lilac bloom) continent-wide would be a huge leap in understanding, and might be achieved in a few years of monitoring.  Imagine if we knew that a degree day accumulation map, or a Hardiness Zone map, accurately predicted emergence, or knew how to calculate specifically how to adjust predicted emergence dates from those mapped values!


      None of this is to throw cold water on the idea, but rather refocus a little to make very best use of the effort for fantastic shorter term insights that we currently lack for any and all bees.  I’d certainly be keen on participating, or maybe even making it work.  If we can formalize the protocol, I do believe that I could convince folks that I know at USANPN in Tucson to add this as a module if we wanted.






      ============ ========= ========= =

      James H. Cane

      USDA-ARS Bee Biology and Systematics Lab

      Utah State University, Logan, UT 84322 USA

      tel: 435-797-3879   FAX: 435-797-0461

      email: Jim.Cane@ars. usda.gov  

      http://www.ars. usda.gov/ npa/logan/ beelab

      http://www.biology. usu.edu/people/ facultyinfo. asp?username= jcane

      Gardening for Native Bees: http://extension. usu.edu/files/ publications/ factsheet/ plants-pollinato rs09.pdf


      "The obscure takes time to see,

      but the obvious takes longer"
      Edward R. Murrow



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