Aphid Biodiversity under Environmental Change formatIsbn:Softcover 9789401783293 ) REAKTIONEN NUCLEAR MICROPROBE MEASUREMENT Pathologisches Institut der Universität ) REAKTIONEN NUCLEAR MICROPROBE MEASUREMENT OE THE SPATIAL DISTRIBUTION OE NON METALS IN METALS INFLUENCE DES RECHERCHES SUSCITEES PAR LES PROGRAMMES "MATERIAUX DE REFERENCES" DU BCR SUR LES PROGRES RECENTS DE L'ANALYSE PAR ACTIVATION ET LE ROLE DE CELLE CI DANS CES PROGRAMMES THE ACCURACY OF ION BEAM ANALYSIS FOR THE DETERMINATION OF NONMETALLIC IMPURITIES IN METALS : STOPPING POWER DATA FOR Bezeichnungen when aphid colonies are still small and predators might be able to reduce the numbers of colonies They conclude that natural enemies are unlikely to affect aphid population dynamics late in a season