Tavvavuoma is a vast and unexploited mire complex set in one of the northernmost plateau regions of Lapland. The Site is rich and diverse: it includes palsa mires, alpine rivers, freshwater lakes, pools and mountain birch woodland. The Site is unusual in Sweden due to its natural hydrological regime which remains intact, unlike many other river valleys in the region which have been dammed for hydro-electricity production. Due to the cold climate, Tavvavuoma is also known as the most palsa-rich area in Sweden, with some palsas (peat mounds formed by the growth of permanently frozen ice lenses under the surface) reaching a height of up to seven metres. Climate change is affecting the condition of the palsas in Tavvavuoma. The palsa mires are characterized by a mosaic of microhabitats and the conditions provide opportunities for an unusually rich and varied plant and animal life. The vegetation here is strongly influenced by permafrost. The birdlife at the site is extremely rich for mires in this region, and as many as 78 bird species have been noted. At least 50% of these species breed within the Site, and densities of breeding Anatidae and waders reach the regionally high numbers of 70 pairs per square kilometre. Numerous lakes and streams attract fish and birds as well as fisherman and ornithologists.

Last publication date: 06-04-2017