A great majority of the swampy forest communities have been preserved in a close to natural state. Aquatic and mire vegetation has also been maintained in a fairly natural state (about 10 per cent of the area). Amongst almost 90 non-woody plant communities, notable are mire communities in particular those of raised bogs (Sphagnetalia magellanici) and transitional bogs including floating moss mats (Caricion lasiocarpae, Rhynchosporion albae). Forests of the site belong to the major unbroken forest tract in Poland - Augustów Forest so that wildlife is characteristic of great woodlands with two species of large predators i.e. wolf and lynx. Swampy forests shelter large herbivores such as elk, red deer, roe deer and wild boar.