Title of article :
Predatory insects as bioindicators of heavy metal pollution
Author/Authors :
Matti Nummelin، نويسنده , , Martin Lodenius، نويسنده , , Esa Tulisalo، نويسنده , , HEIKKI HIRVONEN، نويسنده , , Timo Alanko، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2007
Pages :
9
From page :
339
To page :
347
Abstract :
Heavy metal concentrations of different predatory insects were studied near by a steel factory and from control sites. Waterstriders (Gerridae), dragon fly larvae (Odonata), antlion larvae (Myrmeleontidae) and ants (Formicidae) were analyzed by AAS. In most cases the metal concentrations were higher near the factory, but e.g. waterstriders had higher cadmium concentrations in control area. Discriminant analysis clearly reveals that all these insect groups can be used as heavy metal indicators. However, the commonly used ants were the least effective in indicating the differences between the factory and control sites. Waterstriders are good in detecting differences in iron and manganese, but seem to be poor in accumulating nickel and lead. Antlions are efficient in detecting differences in iron. Antlions and ants are effective in accumulating manganese; as well antlions are efficient in accumulating cadmium. Waterstriders are poor in accumulating lead, but antlions and ants are effective.
Keywords :
Formicidae , Gerridae , Odonata , Steel factory , Tva¨rminne , Myrmeleontidae
Journal title :
ENVIRONMENTAL POLLUTION
Serial Year :
2007
Journal title :
ENVIRONMENTAL POLLUTION
Record number :
730921
Link To Document :
بازگشت