Acknowledgment
This work was accomplished within a research program of TEI of Epirus called URBAN: Integrated Framework of Management, Protection and Utilization of Urban and peri-Urban Forest. This research has been co-financed by the European Union (European Social Fund – ESF) and Greek national funds through the Regional Operational Program (ROP) of Epirus of the National Strategic Reference Framework (NSRF) - Research Funding Program NEA GNOSI.