abril 17, 2007

Primer aviso ...


La radiación emitida por los teléfonos móviles puede estar haciendo desaparecer a las abejas
La radiación puede interferir en sus sistemas de navegación de modo que no sean capaces de volver a la colmena.
En EE UU hay 24 estados afectados, y en Europa ya se ha dejado notar por Polonia, Grecia, Italia, España, Portugal y Reino Unido.


Las asociaciones de apicultores prefieren mostrarse cautos hasta que no se haga un estudio a gran escala.


A finales del pasado mes de marzo saltaba la alarma ante la misteriosa desaparición de abejas, que habían dejado vacíos el 25% de enjambres estadounidenses.
En Alemania y España también se preguntaban qué ocurría a principios de este mes, y especulaban con la posibilidad de que los insecticidas, una enfermedad (varroasis) o incluso el calentamiento global, estuvieran matando masivamente a estos insectos.Tras una investigación, científicos alemanes parecen tener la pieza sobrante que completaría el puzzle, y es más tecnológica que ninguna de las teorías presentada; según los investigadores germanos, las abejas están desapareciendo por culpa de la radiación que emiten los teléfonos móviles.


Desde Gran Bretaña se ha pedido que se profundice en la investigación ya que la paulatina extinción del insecto comienza a ser un problema acuciante para los apicultores británicos, según publica el Daily Telegraph.Al parecer, la radiación interfiere en los sistemas de navegación de las abejas de modo que el 70% de las abejas expuestas a ella no son capaces de volver a la colmena tras haber marchado a buscar polen y néctar, según el informe publicado por la Universidad Landau.Colony collapse disorder en media Europa.


Los investigadores están buscando una explicación convincente para explicar el Colony collapse disorder (CCD), esta misteriosa desaparición que hace que las abejas abandonen repentinamente sus colonias y desaparezcan para morir.


Esta desorientación explicaría que no se encontraran los cadáveres de los insectos, ya que podrían acabar muriendo en cualquier parte.En Estados Unidos ya son 24 los estados afectados, cuyas pérdidas ascienden del 50 al 90% de las colonias.Sin embargo, el CCD ha traspasado las fronteras de Norteamérica y ya es un quebradero de cabeza para los dirigentes europeos, que ven cómo se extiende por Polonia, Grecia, Italia, España, Portugal y Reino Unido.John Chapple es uno de los primeros apicultores londinenses y ha alertado de que 30 de sus 40 colmenas están vacías y, además, las restantes han llegado a perder hasta el 75% de las abejas.


Las asociaciones de apicultores prefieren mostrarse cautos ante esta revelación y consideran que hasta que no se haga un estudio a gran escala será difícil estar seguros de que la radiación sea la verdadera causante de la desorientación y muerte de estos insectos.



Scientists claim radiation from handsets are to blame for mysterious 'colony collapse' of bees


It seems like the plot of a particularly far-fetched horror film. But some scientists suggest that our love of the mobile phone could cause massive food shortages, as the world's harvests fail.
They are putting forward the theory that radiation given off by mobile phones and other hi-tech gadgets is a possible answer to one of the more bizarre mysteries ever to happen in the natural world - the abrupt disappearance of the bees that pollinate crops. Late last week, some bee-keepers claimed that the phenomenon - which started in the US, then spread to continental Europe - was beginning to hit Britain as well.


The theory is that radiation from mobile phones interferes with bees' navigation systems, preventing the famously homeloving species from finding their way back to their hives. Improbable as it may seem, there is now evidence to back this up.


Colony Collapse Disorder (CCD) occurs when a hive's inhabitants suddenly disappear, leaving only queens, eggs and a few immature workers, like so many apian Mary Celestes. The vanished bees are never found, but thought to die singly far from home. The parasites, wildlife and other bees that normally raid the honey and pollen left behind when a colony dies, refuse to go anywhere near the abandoned hives.


The alarm was first sounded last autumn, but has now hit half of all American states. The West Coast is thought to have lost 60 per cent of its commercial bee population, with 70 per cent missing on the East Coast.


CCD has since spread to Germany, Switzerland, Spain, Portugal, Italy and Greece. And last week John Chapple, one of London's biggest bee-keepers, announced that 23 of his 40 hives have been abruptly abandoned.


Other apiarists have recorded losses in Scotland, Wales and north-west England, but the Department of the Environment, Food and Rural Affairs insisted: "There is absolutely no evidence of CCD in the UK."


The implications of the spread are alarming. Most of the world's crops depend on pollination by bees. Albert Einstein once said that if the bees disappeared, "man would have only four years of life left".


No one knows why it is happening. Theories involving mites, pesticides, global warming and GM crops have been proposed, but all have drawbacks.


German research has long shown that bees' behaviour changes near power lines.
Now a limited study at Landau University has found that bees refuse to return to their hives when mobile phones are placed nearby. Dr Jochen Kuhn, who carried it out, said this could provide a "hint" to a possible cause.


Dr George Carlo, who headed a massive study by the US government and mobile phone industry of hazards from mobiles in the Nineties, said: "I am convinced the possibility is real."


The case against handsets


Evidence of dangers to people from mobile phones is increasing. But proof is still lacking, largely because many of the biggest perils, such as cancer, take decades to show up.
Most research on cancer has so far proved inconclusive. But an official Finnish study found that people who used the phones for more than 10 years were 40 per cent more likely to get a brain tumour on the same side as they held the handset.


Equally alarming, blue-chip Swedish research revealed that radiation from mobile phones killed off brain cells, suggesting that today's teenagers could go senile in the prime of their lives.
Studies in India and the US have raised the possibility that men who use mobile phones heavily have reduced sperm counts. And, more prosaically, doctors have identified the condition of "text thumb", a form of RSI from constant texting.

Professor Sir William Stewart, who has headed two official inquiries, warned that children under eight should not use mobiles and made a series of safety recommendations, largely ignored by ministers.

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