共 23 条
[3]
COLE DN, 1997, USDA FOREST SERV INT, V496, P1
[4]
DIAMOND J M, 1975, Biological Conservation, V7, P129, DOI 10.1016/0006-3207(75)90052-X
[5]
Fairbanks WS, 2002, NAT AREA J, V22, P277
[6]
Fletcher RJ, 1999, J RAPTOR RES, V33, P233
[8]
Liddle MJ, 1997, RECREATION ECOLOGY
[9]
MANDELBROT BB, 1982, FRACTRAL DIMENSIONS
[10]
High rates of extinction and threat in poorly studied taxa
[J].
CONSERVATION BIOLOGY,
1999, 13 (06)
:1273-1281