- Popular article2009. Meervleermuizen in Fryslân. De Levende Natuur 110 : 73-76.
- Article in journal2009. Genetic variability of feral and ranch American mink Neovison vison in Poland. Acta Theriologica 54 : 1-10. DOI: 10.1007/BF03193132
- Book chapter2009. Ochrona przyrody i krajobrazu we współdziałaniu z lokalnymi społecznościami na przykładzie parków narodowych w Anglii. In: Trwałość i efektywność ochrony przyrody w polskich parkach narodowych. Eds. A. Andrzejewska, A. Lubański. Kampinoski Park Narodowy, Izabelin : 67-79.
- Article in journal2009. Global decline in aggregated migrations of large terrestrial mammals. Endangered Species Research 7 : 55-76. DOI: 10.3354/esr00173
- Article in journal2009. Tree age is a key factor for the conservation of epiphytic lichens and bryophytes in beech forests. Applied Vegetation Science 12 : 93-106. DOI: 10.1111/j.1654-109X.2009.01007.x
- Book2009. Ostatni żubr. Zakład Badania Ssaków PAN, Białowieża
- Article in journal2009. Do ungulates preferentially feed in forest gaps in European temperate forests?. Forest Ecology and Management 258 (7) : 1528-1535. DOI: 10.1016/j.foreco.2009.07.010
- Article in journal2009. Decline and potential recovery of the European grey partridge (Perdix perdix) population - a review. European Journal of Wildlife Research 55 : 455-463. DOI: 10.1007/s10344-009-0311-2
- Article in journal2009. The need to rationalize and prioritize threatening processes used to determine threat status in the IUCN Red List. Conservation Biology 23(6) : 1568-1576. DOI: 10.1111/j.1523-1739.2009.01260.x
- Article in journal2008. Reproductive behaviour of wild-living wolves Białowieża Primeval Forest (Poland). Journal of Ethology 26 : 69-78. DOI: 10.1007/s10164-006-0031-y PDF
