005020000a2200169000450024500750000065000090007565000210008465000360010565100140014104100130015570000240016870000270019270000210021970000220024010000200026277300500028210aSignificance of protected areas for the land birds of southern finland14aAves14aAreas protegidas14aBiología de la conservación 4pFinlandia0 aInglés1 aRajasärkkä, Ari1 aVäisänen, Risto A.1 aVickholm, Markku1 aVirolainen, Erkki1 aVirkkala, Raimo1 tConservation Biology324h2q532-544d1994g8