%0 Article
%T Invertebrates of young Scots pine stands near the industrial town of Harjavalta, Finland.
%A Heliövaara, Kari
%A Väisänen, Rauno
%D 1989
%J Silva Fennica
%V 23
%N 1
%R doi:10.14214/sf.a15527
%U https://silvafennica.fi/article/5368
%X <p>Invertebrates of young Scots pine (<em>Pinus sylvestris</em> L.) stands were preliminarily studied along a gradient of industrial air pollutants in Harjavalta, south-western Finland. Bark samples and net samples on pine branches and needles were taken in May–June, 1987. The number of aphids on needles was highest near the industrial plants. The number of mites in bark was positively correlated with the increasing distance from the pollutant source. Detrended correspondence analysis ordination calculated according to the bark invertebrates showed that the sampling sites of the zones far from the emission source formed a distinct group while those of the zones near the source were relatively widely dispersed indicating disturbances in faunal structure.</p>
<p>The PDF includes an abstract in Finnish.</p>