Habitat preferences of diurnal raptors in relation to human access to their breeding territories in the Balkan Mountain Range, Bulgaria

Table 2 Cost Path analyses

Cost Path analyses
Cost Path from settlements to the centers of breeding territories^a
Cost Path from roads to the centers of breeding territories
Cost Path from operating lodges to the centers of breeding territories^b
Cost Path from pedestrian routes to the centers of breeding territories
Cost Path from religious tourism centers to the centers of breeding territories
Cost Path from operating quarries or mines to the centers of breeding territories
Cost Path from starting points for recreational activities (rocks used for rock climbing, starting points for hang gliding and paragliding, caves, waterfalls, and lifts) to the centers of breeding territories
Cost Path All‒Cost Path from any point of an anthropogenic object in the united layer to the centers of the breeding territories
Percentage distribution of breeding territories in relation to Natura 2000 areas—special Protection Areas (SPA) and Sites of Community Importance (SCI)
Percentage distribution of breeding territories in relation to Protected Areas—parks and reserves^c

^aThe population numbers of the settlements were set as an additional condition in the calculation of the cost path. For this purpose, data from the 2011 census of the National Statistical Institute (www.nsi.bg) were used, taking into account the number of the active population, which included people aged 5 to 70 years
^bThe capacity in terms of number of beds in the Balkan Mountains lodges was set as an additional condition in the calculation of the cost path
^cIn cases where the breeding territory fell simultaneously in the two types of Protected Areas, the Protected Area with a higher status was predominantly taken into account

ISSN: 2053-7166