Three Species of Lichens Tolerant of High Concentrations of Copper
- 1 January 1977
- Vol. 29 (2) , 290-293
- https://doi.org/10.2307/3543616
Abstract
In 1974 cover analyses were made in 2 green bands with sparse vegetation of lichens on a gneissic rock near Godhavn (69.degree. 15'' N, 53.degree. 34'' W) on Disko Island in West Greenland. Analyses of vegetation were also made in the dense cover of saxicolous lichens on the surrounding rock surfaces. In addition samples of lichens and rock substrate were taken from the different types of surfaces and analyzed for contents of Ca, Mg, Mn, Fe, Cu, Pb, Ni and Zn. In regard to Ca, Mg, Mn, Fe, Pb, Ni and Zn there were no significant differences between the investigated zones, except a reference from Fortunebay, which has a rather low content of Mg. The values for Cu showed, however, considerable differences for substrate and lichens in the zones compared. Three species of lichens, Umbilicaria lyngei Schol., Alectoria pubescens (L.) R. H. Howe and Lecanora polytropa (Ehrh.) Rabenh., prove to be able to survive on a rock surface with a high content of Cu and moreover accumulate high concentrations of this element.This publication has 0 references indexed in Scilit: