Habitat selection by Cantabrian capercaillie Tetrao urogallus cantabricus at the edge of the species' distribution

摘要: Abstract We studied the patterns of habitat availability and use by Cantabrian capercaillie Tetrao urogallus cantabricus, an isolated endangered population at southwestern edge species distribution. combined field surveys GIS analyses to show that this differs from its conifer-specialist conspecifics in it inhabits beech Fagus sylvatica oak Quercus petraea forests, without specialisation as regards tree long enough forest cover remains. The is highly fragmented, smaller patches have been abandoned during last few decades; display areas remain occupied are now located farther edges. Lower density more widespread distribution bilberry Vaccinium myrtillus characterised grounds. However, even showed densities well within optimum range for other populations, a result should be taken into...