SYNECOLOGICAL STUDY TO ESTABLISH THE ECOLOGICAL SIGNIFICANCE OF SPECIES PINUS NIGRA SSP. BANATICA WITHIN A PHYTOCOENOSIS PUBLISHEDMădălina Borca, Svetislav Maximovici
The study has proposed to establish the ecological significance of the species Pinus nigra ssp. banatica within a phytocoenosis from the National Park Domogled - Cerna Valley, but also the degree of ecological similitude of the studied phytocoenoses of the investigated biotopes, as well as the degree of coenotic affinity existing between the identified species through synecological analysis using specific environmental indicators. To achieve the established goal and objectives there have been used quantitative research methods of biocoenoses, and there were calculated an analytical ecological indicators (constancy), and synthetic ecological indicators (coefficient of ecological similitude Sörensen and the Jaccard index of coenotic affinity). The results showed that the species Pinus nigra ssp. banatica was encountered in all five studied areas, belonging to the class V of constancy. Among the species with constancy K = III, IV, V, Pinus nigra ssp. banatica has 100% coenotic affinity with only two species. With most of the species found as constant in the analyzed phytocoenosis, Pinus nigra ssp. banatica has 80% coenotic affinity (11 species) and 60% coenotic affinity (8 species), and only with a single species has 50% coenotic affinity.
Pinus nigra ssp. banatica, ecological significance, constancy, Sörensen, Jaccard, National Park Domogled - Cerna Valley, phytocoenosis