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Konno, Y. (Tohoku Univ., Sendai (Japan))
Rikusuigaku zasshi, 2003, Letnik: 64, Številka: 2Journal Article
Palsas (peaty permafrost mounds) are one of the typical periglacial landforms found in Arctic regions. In Japan, palsas are found only in the southern part of Hiragatake (43°37’N, 142°54’E, 1,720 m a.s.l.) in the Daisetsuzan National Park, Hokkaido. To clarify the species composition of aquatic insect communities in a palsa bog, I sampled aquatic insects in ponds from June to September in 2002. A total of 238 individual aquatic insects from 15 species belonging to 5 orders were collected. Among those species, Oligotricha hybridoides (Phryganeidae: Trichoptera), Agabis daisetsuzanus (Dytiscoidea: Coleoptera), Hydroporus konoi (Dytiscoidea), and Sialis sibirica (Sialidae: Megaloptera) were dominant in palsa ponds.
