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Table 3 Descriptive statistics of the cost path values of various impact points (anthropogenic objects) calculated for all three species under study

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

Cost path Aquila chrysaetos (n = 38) Buteo rufinus (n = 54) Falco peregrinus (n = 20)
Impact points Mean Min Max SD Mean Min Max SD Mean Min Max SD
Settlement 90,609 22,440 280,375 55,517 59,465 5587 170,656 39,839 75,266 22,156 223,431 47,958
Lodges 572,636 139,370 1,005,450 233,616 716,139 188,531 1,316,020 239,448 563,885 126,458 1185,330 309,488
Road 772,518 154,350 2,120,293 536,853 405,925 16,532 1,535,778 296,832 611,835 83,041 1995,407 510,412
Trail 133,723 13,197 306,222 80,500 80,627 4863 265,758 65,269 138,805 31,999 374,660 83,476
Quarries/Mines 2,352,757 533,792 5,816,220 1,413,244 1,585,221 183,749 3,637,854 840,781 2,203,449 213,645 4,897,610 1,195,145
Religious 1,357,485 177,925 2,818,153 619,713 920,064 90,372 2,138,050 481,457 1,456,415 458,864 3,881,310 768,204
Recreation 688,855 116,479 1,615,979 371,224 534,988 18,901 1,397,080 320,524 556,976 67,935 1,487,392 361,736
All 71,433 13,197 149,412 37,897 42,604 4863 130,039 30,751 64,827 22,390 128,624 33,508