> 2 <br />> <http://www.nature.com/nature/journal/v509/n7500/full/naturel3290.html#ref2> <br />> has withstood the test of independent replication <br />> under truly blinded ! <br />> experimental conditions. No effect has therefore been widely <br />> accepted as scientifically provenl <br />> <http://www.nature.com/nature/journal/v509/n7500/full/naturel3290.html#refl> <br />> 2 <br />> <http://www.nature.com/nature/journal/v509/n7500/full/naturel3290.html#ref2> <br />> 3 <br />> <http://www.nature.com/nature/journal/v509/n7500/full/naturel3290.html#ref3> <br />> 4 <br />> <http://www.nature.com/nature/journal/v509/n7500/full/naturel3290.html#ref4> <br />> 5 <br />> <http://www.nature.com/nature/journal/v509/n7500/full/naturel3290.html#ref5> <br />> 6 <br />> <http://www.nature.com/nature/*ournal/v509/n7500/full/naturel3290.html#ref6> <br />> . Here we show that migratory birds are unable to use their <br />> magnetic compass in the presence of urban electromagnetic noise. <br />> When European robins, Erithacus rubecula, were exposed to the <br />> background electromagnetic noise present in unscreened wooden <br />> huts at the University of Oldenburg campus, they could not orient <br />> using their magnetic compass. Their magnetic orientation <br />> capabilities <br />> reappeared in electrically grounded, aluminium-screened huts, <br />> which attenuated electromagnetic noise in the frequency range <br />> from 50?kHz to 5?MHz by approximately two orders of magnitude. <br />> When the grounding was removed or when broadband electromagnetic <br />> noise was deliberately generated inside the screened and grounded <br />> huts, the birds again lost their magnetic orientation <br />> capabilities. The disruptive effect of radiofrequency <br />> electromagnetic fields is not confined to a narrow frequency band <br />> and birds tested far from sources of electromagnetic noise <br />> required no screening to orient with their magnetic compass. <br />> These fully double-blinded tests document a reproducible effect <br />> of anthropogenic electromagnetic noise on the behaviour of an <br />> intact vertebrate. <br />> http://www.uni-oldenburg.de/en/news-single/art/electrosmog-disrupts-orientation-in-migratory-birds-948/ <br />> Electrosmog Disrupts Orientation in Migratory Birds <br />> * <http://www.uni-oldenburg.de/uploads/pics/Rotkehlchen.jpg> <br />> http://www.uni-oldenburg.de/typo3temp/pics/lOa9b4bb9l.jpg <br />> European robin. Foto: Robjem/istockphoto <br />> * <http://www.uni-oldenburg.de/typo3temp/pics/320e793138_*pg> <br />> http://www.uni-oldenburg.de/typo3temp/pics/Obldb6l936.epg <br />> Henrik Mouritsen: "Clear and reproducible effect of human-made <br />> electromagnetic fields on a vertebrate." <br />> Start <http://www.uni-oldenburg.de/> *1 <br />