Persistence of capercaillie (Tetrao urogallus) lekking areas depends on forest cover and fine-grain fragmentation of boreal forest landscapes

Sirkiä, Saija; Helle, Pekka; Lindén, Harto; Nikula, Ari; Norrdahl, Kai; Suorsa, Petri; Valkeajarvi, Pentti (2011)