DYNAMICS OF THE PHYTOCOENOTIC ROLE OF ARTHONIA LAPIDICOLA (TAYLOR) BRANTH & ROSTR. IN EPILITHIC LICHEN-GROUPINGS IN MAARDU PHOSPHORITE QUARRIES, NORTH ESTONIA
1994; Estonian Academy Publishers; Volume: 43; Issue: 4 Linguagem: Inglês
10.3176/biol.1994.4.05
ISSN1406-0108
Autores Tópico(s)Botanical Studies and Applications
ResumoNew to the lichen species of Estonia, Arthonia lapidicola (Taylor) Branth 8 Rostr.was found on limestone substrates of different exposure ages (9, 14, 19, 24 years) in Maardu phosphorite guarries in North Estonia.Here the dynamics of the phytocoeno- tic role of this species in lichen groupings is analysed.In Maardu quarries A. lapidicola quickly colonizes newly exposed limestone substrates, successfully competing with Leca- nora hagenii (Ach.)Ach. and excluding the latter from the lichen groupings at the early successional stages.But at later successional stages, A, lapidicola itseliis extruded from lichen groupings by foliose lichens Phaeophyscia orbicularis (Neck.)Moberg and P. nigricans (Florke) Moberg during a period of five years.;Key words:
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