Zou goed kunnen ja, en de giffen zouden daar waarschijnlijk pas gaan werken, waardoor de bijen op een gegeven moment niet meer binnen willen komen.quote:Op dinsdag 24 april 2007 11:49 schreef SSSsssSSS het volgende:
Een betere oorzaak naar m'n mening.....
"In many cases, scientists have found evidence of almost all known bee viruses in the few surviving bees found in the hives after most have disappeared. Some had five or six infections at the same time and were infested with fungi -- a sign, experts say, that the insects' immune system may have collapsed.
The scientists are also surprised that bees and other insects usually leave the abandoned hives untouched. Nearby bee populations or parasites would normally raid the honey and pollen stores of colonies that have died for other reasons, such as excessive winter cold. "This suggests that there is something toxic in the colony itself which is repelling them," says Cox-Foster."
Bron: Http://www.spiegel.de/international/world/0,1518,473166,00.html
Het artikel doelt op Genitsch Gemodificeerde gewassen welke een afweerstof maken voor ziektes en plagen....Mischien dat de bijen dat meenemen naar het nest, vandaar dat er geen predatie optreedt na het verlaten van het nest.
omdat het probleem veel gecompliceerder isquote:
Het probleem is veel gecompliceerder ja dat hoef je mij niet te vertellen, maar om nu alle kettingreacties te gaan lopen vertellen heeft toch geen nut he? Verder is het heel makkelijk om te zeggen dat iets gecompliceerd is zonder het toe te lichten.quote:Op woensdag 25 april 2007 11:15 schreef Vassili_Z het volgende:
[..]
omdat het probleem veel gecompliceerder is
je lijkt wel zo'n tegenstander van dat de aarde teveel opwarmt met het argument als: mwoaaaa maakt niet uit, vroeger hadden we ook temperatuurschommelingen blablabla
Is dit nou een self-fulfilling profecy ?quote:Op donderdag 26 april 2007 20:08 schreef Hallulama het volgende:
Reuters - 26 Apr 2007: Taiwan stung by millions of missing bees
http://www.chicagotribune(...)9640.story?track=rssquote:A fungus that caused widespread loss of honeybee colonies in Europe and Asia may be playing a crucial role in the phenomenon known as Colony Collapse Disorder that is wiping out bees across the United States, researchers in California said Wednesday.
The new findings represent the first solid evidence pointing to a potential cause of the disorder. But they are "highly preliminary" and from only a few hives in California's Merced County, said Joe DeRisi, a biochemist at the University of California, San Francisco.
Other researchers said Wednesday that they, too, had found the fungus, a single-celled parasite called Nosema ceranae, in affected hives from around the country -- as well as in some hives that have survived. Those researchers also have found two other fungi and a half-dozen viruses in the dead bees.
N. ceranae is "one of many pathogens" in the bees, said entomologist Diana Cox-Foster of Pennsylvania State University. "By itself, it is probably not the culprit ... but it may be one of the key players."
Cox-Foster was one of the organizers of a meeting in Washington this week at which about 60 bee researchers discussed Colony Collapse Disorder.
"We still haven't ruled out other factors, such as pesticides or inadequate food resources following a drought," she said.
Many researchers at the meeting in Washington widely dismissed a report that cell phone towers and radio waves may be to blame for the bees' disappearance. The theory has percolated throughout the Internet, despite repeated denunciations by bee researchers.
http://www.sciencedaily.com/releases/2007/04/070426113951.htmquote:A honey bee mite has been discovered at a bee farm in Manoa, Oahu, after abandoned hives from Makiki Heights were relocated to the property last week. Varroa mites were detected on bees in three of the abandoned hives on April 6 by the beekeeper and reported to the Hawaii Department of Agriculture (HDOA). Samples of the mites have been sent to a mite specialist at a U.S. Department of Agriculture (USDA) laboratory on the mainland for confirmatory identification.
The varroa mite is considered one of the most serious honey bee pests and occurs almost worldwide. Hawaii had been one of the few places where the mite was not known to occur. It is not known at this time how the mites were introduced to Oahu. So far, surveys conducted on hives in the Tantalus, UH-Manoa and Makiki area have detected varying degrees of infestation of the mite. Surveys on commercial hives on the Big Island, where several of the state’s queen bee raising operations are located, have not detected the Varroa mite.
“This bee mite poses a major threat to Hawaii’s bee industry and to feral bee populations,” said Sandra Lee Kunimoto, Chairperson of the Hawaii Board of Agriculture. “Teams of HDOA staff have been working rapidly to determine the extent of the infestation and to establish containment and control plans.”
HDOA Plant Industry staff from three branches, including entomologists, plant quarantine inspectors, plant pest control specialists and pesticides specialists, have mobilized statewide and are working closely with the local bee industry and USDA officials.
“We are enlisting the help of all beekeepers, commercial and backyard hobbyists, to help us in assessing the extent of this infestation,” said Lyle Wong, administrator of HDOA’s Plant Industry Division. “HDOA officials will be visiting bee hives to conduct surveys and the cooperation of beekeepers is very crucial in possibly stopping the spread of the varroa mite.”
Entomologists and pest control specialists will survey all islands for the mites as soon as possible. The Plant Quarantine Branch is preparing a quarantine order preventing the interisland movement of bees and beekeeping equipment. In the meantime, beekeepers are being asked not to move bees interisland.
Toch een beetje een pandamie onder de zoemers.quote:Op vrijdag 27 april 2007 06:52 schreef Hallulama het volgende:
Mooi dat ze 't hebben gevonden, snel opruimen die handel en laat ze weer vrolijk zoemen
2:quote:Documented sub-lethal affects of neonicotinoids
include physiological affects that impact enzyme activity leading to impairment of olfaction
memory. Behavioral affects are reported on motor activity that impact navigation and orientation
and feeding behavior. Additional research has found that imidacloprid impairs the memory and
brain metabolism of bees, particularly the area of the brain that is used for making new
memories. Decourtye et al. (2004). Recent research done on imidacloprid looked at crops where
imidacloprid was used as a seed treatment. The chemical was present, by systemic uptake, in
corn and sunflowers in levels high enough to pose a threat to honey bees. Bonmatin et al. (2003
and 2005).
http://www.ento.psu.edu/MAAREC/CCDPpt/RecGrowersUsingNeonics.pdfquote:A North Carolina University study found that some neonictinoids in combination with certain fungicides, synergized to increase the toxicity of the neonicotinoid to honey bees over 1,000 fold in lab studies. Iwasa et al. (2004). Both the neonicotinoids and the fungicides (Terraguard and
Procure) are widely used. This synergistic effect needs to be looked at more carefully.
quote:Op vrijdag 27 april 2007 19:47 schreef Hallulama het volgende:
Ratenmanagement, weer een nieuw woord geleerd!
Prima toch?quote:Op vrijdag 27 april 2007 20:12 schreef Doderok het volgende:
![]()
Kon geen betere vertaling bedenken ("have aggressive comb management/replacement procedures in place")
http://news.yahoo.com/s/ap/20070503/ap_on_sc/honeybee_die_offquote:Unless someone or something stops it soon, the mysterious killer that is wiping out many of the nation's honeybees could have a devastating effect on America's dinner plate, perhaps even reducing us to a glorified bread-and-water diet.
Honeybees don't just make honey; they pollinate more than 90 of the tastiest flowering crops we have. Among them: apples, nuts, avocados, soybeans, asparagus, broccoli, celery, squash and cucumbers. And lots of the really sweet and tart stuff, too, including citrus fruit, peaches, kiwi, cherries, blueberries, cranberries, strawberries, cantaloupe and other melons.
In fact, about one-third of the human diet comes from insect-pollinated plants, and the honeybee is responsible for 80 percent of that pollination, according to the U.S. Department of Agriculture.
Even cattle, which feed on alfalfa, depend on bees. So if the collapse worsens, we could end up being "stuck with grains and water," said Kevin Hackett, the national program leader for USDA's bee and pollination program.
"This is the biggest general threat to our food supply," Hackett said.
While not all scientists foresee a food crisis, noting that large-scale bee die-offs have happened before, this one seems particularly baffling and alarming.
U.S. beekeepers in the past few months have lost one-quarter of their colonies — or about five times the normal winter losses — because of what scientists have dubbed Colony Collapse Disorder. The problem started in November and seems to have spread to 27 states, with similar collapses reported in Brazil, Canada and parts of Europe.
ik vind deze uitspraak uit het artikel van de FPquote:Op woensdag 11 juni 2008 20:15 schreef OldJeller het volgende:
Die kleine beestjes zijn erg belangrijk.
dan ook onzin, mi is de bij het belangrijkste dier .. zonder bestuiving zullen een boel planten en gewassen verdwijnen, en wat voor gevolgen dat heeft op de langere duur naast wat wij direct voelen in de geldbuidel of (niet) zien op ons bord moeten we nog maar afwachten, planten doen meer dan ons van voedsel voorzien, waar gaat bvb al dat water naar toe dat de plantjes anders gebruikt zouden hebben, welke wortels houden de grond vast als het weer eens hard regent ..quote:De bij is, na varkens en koeien, het belangrijkste dier in Nederland.
Nu in zijn latere jaren begon die meneer toch een behoorlijk hoeveelheid onzin uit te kramenquote:Op maandag 16 april 2007 15:11 schreef buachaille het volgende:
[..]
En lees dan vooral het citaat van Albert Einstein (niet de minste) in de opening:
"Als er geen bijen meer op de aarde zijn, heeft de mens nog vier jaren te leven; geen bijen meer, geen bestuiving meer, geen planten meer, geen dieren meer, geen mensen meer..."
Albert Einstein
Beetje vreemd omdat ook onder andere insecten en dieren zorgen voor bestuiving maar wie ben ik om te twijfelen aan theorieën van Einstein![]()
Heeft er iemand trouwens wel eens Koninginnegelei gegeten? Lekker!!![]()
Willem Alexander geeft het ook aan de kleine Ariane Wilhelmina heb ik uit onbetrouwbare bron vernomen.
http://www.snopes.com/quotes/einstein/bees.aspquote:Op donderdag 12 juni 2008 11:42 schreef icecreamfarmer_NL het volgende:
[..]
Nu in zijn latere jaren begon die meneer toch een behoorlijk hoeveelheid onzin uit te kramen
quote:If the intent of propagating this quote is to get our attention, it's certainly been working. Did Einstein sagely foresee an environmental crisis we're only just now beginning to notice?
To answer that last question (without denying the importance of the honeybees), we have to consider the related question of "Did Einstein really say this?" First off, searches of Einstein's writings and speeches and public statements, as well as of (scholarly) compilations of Einstein quotations reveal nary a reference to the "four years" phrase or any other statement mentioning bees (save for a brief comparison between humans and colony insects such as ants and bees). The compiler of The New Quotable Einstein also found no Einsteinian source for this quote and lists it as "Probably Not by Einstein."
Secondly, even though Einstein died in 1955, assiduous searching of a variety of databases of historical printed material (e.g., books, newspapers, magazines) has so far failed to turn up any mention of this quote (attributed to Einstein or anyone else) antedating 1994, when it suddenly started popping up in newspaper articles reporting on a protest in Brussels staged by beekeepers:
A pamphlet distributed [in Brussels] by the National Union of French Apiculture quoted Albert Einstein. "If the bee disappears from the surface of the earth, man would have no more than four years to live. No more bees, no more pollination ... no more men!"
Die mensen begrepen hem gewoon niet.quote:Op donderdag 12 juni 2008 11:42 schreef icecreamfarmer_NL het volgende:
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Nu in zijn latere jaren begon die meneer toch een behoorlijk hoeveelheid onzin uit te kramen
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