Fine-scale genetic structure among greater sage-grouse leks in central Nevada

Table 1 Summary results from Mantel models testing if genetic distance (D; [70]) among sage-grouse leks is predicted by geographic distance, habitat suitability, and potential barriers to movement (e.g. roads and power lines)

Model variables	R ²	P
Distance + habitat^a	0.336	<0.001
Distance	0.286	<0.001
Distance + permeable barriers^b	0.080	0.287
Distance + low-permeable barriers^b	0.068	0.262

^aThe habitat suitability resistance surface was derived from the inverse of a sage-grouse nest selection model (see Fig. 1 for more details)
^bMovement barrier resistance surfaces were derived from a 100 m buffer around all roads and power lines within the study area. Each pixel within 100 m of a barrier was assigned either the maximum environmental resistance value observed in the habitat suitability model (Permeable Barriers) or assigned an environmental resistance value four orders of magnitude greater than the maximum environmental resistance value (Low-permeable barriers)

ISSN: 2730-7182