GENETIC-ANALYSIS OF SPRUCE STANDS IN THE LIMESTONE ALPS - A PILOT-STUDY

Genetic diversity is required as a basis for adaptability of forest tr ee populations under changing environmental conditions. Adaptation to extreme environments may lead to a short term genetic optimum, on the long run, however, to loss of diversity. The aim of this study was to estimate the amount of variation in spruce stands at the Schulterberg area. Isozyme analysis was employed to investigate three stands along an altitude transect. Although the number of polymorphic loci decrease d at higher altitudes, no striking differences were found with respect to gene diversity. There is no indication of reduced adaptability in the marginal area close to the forest line.