Stigao je i kratak izveštaj mlađeg člana istraživačkog tima:
Hello Mr. ...,
For some reason I never received your e-mail to me. I went and looked for it, but can not find it anywhere, so I apologize if you felt I may have ignored it. First I heard of it was from Dr. Sheppard.
As he mentioned, I just got done collecting data from this winters storage trials, so still have to do some analysis. Here in the USA, at least on the west coast, there are several methods of wintering people already do. One of the more common, and probably stressful ones for the bees, is keeping them in California in large holding yards, where they're still active but don't have much forage - so have to be fed regularly. Then we have those who winter their bees outdoors in colder areas, like Washington - so the bees are less active than in California. Finally, we have those who winter their bees indoors - several thousand colonies in large, well ventilated warehouses. Sometimes they control the temperature, sometimes they just blow cold air from outside and don't worry too much.
And then we have this thing with controlled atmosphere storage, which became of some interest. This last winter, I had some colonies in all 4 types of systems, with the two indoor systems kept at about 40°F or 4.5°C. Both those kept outdoors in California, and outdoors here in Washington seem to have been in the worst shape come the end of February, with more dead colonies and lower frame counts.
The carbon dioxide levels in the controlled atmosphere room reached a high between 5.5-6.5%. This does not appear to have hurt the bees from what I've seen so far. I can not say I see a difference between those kept just in a cold room, and those kept in cold with the elevated carbon dioxide.
I still have a bit of work to go though. But that can at least give you an idea of what I've seen so far. If you have any specific questions, feel free to ask. And as Dr. Sheppard mentioned, we'll attempt to keep you up to date on any publications that come out of this.
Thank you,
Jason Long
Kao što je Dr. Šepard pomenuo, Upravo sam završio sa prikupljanjem podataka sa ovogodišnje zimske probe, tako da još uvek treba da se urade neke analize.
Ovde u SAD, bar na zapadnoj obali, postoji nekoliko metoda prezimljavanja koje ljudi koriste. Jedan od najčešćih, i verovatno najstresnijih za pčele, je njihovo držanje u Kaliforniji u velikim otvorenim skladištima, gde su još uvek aktivne ali nemaju dovoljno hrane tako da moraju da se redovno prehranjuju. Dalje imamo one koji prezimljavaju svoje pčele na hladnom prostoru, kao što je država Vašington gde su pčele manje aktivne nego u Kaliforniji. Na kraju, imamo one koji prezimljavaju svoje pčele u zatvorenom prostoru, nekoliko hiljada košnica u velikim, dobro ventiliasnim skladištima. Ponekada kontrolišu temperaturu, ponekad samo uduvavaju hladan vazduh spolja i ne brinu mnogo.
I onda imamo ovu stvar sa kontrolisanom atmosferom u skladištu koja postaje interesantna. Prošle zime, imao sam košnice u sva četiri tipa sistema, sa dva zatvorena sistema držana na oko 4.5°C. Oba koja drže pčele unutra su u Kaliforniji, a ova napolju u Wašingtonu izgleda da su u najgore stanje došla krajem februara, sa više mrtvih društava i manjim brojem ramova.
Nivo ugljen dioksida u skladištima sa kontrolisanom atmosferom dostigao je nivo od 5.5-6.5%. To izgleda nije smetalo pčelama koliko do sada vidim. Ne mogu da kažem da vidim razliku između onih koje su bile držane u hladnom prostoru i onih koje su bile držane u atmosferi sa povišenim ugljen dioksidom.
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