Lentic aquatic insects in the ponds of a palsa bog in Daisetsuzan National Park, Hokkaido

Research output: Contribution to journalArticle

Abstract

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 hybriedoides (Phryganeidae: Trichoptera) , Agabis daisetsuzanus (Dytiscoidea: Coleoptera), Hydroporus konoi ( Dytiscoidea , and Sialis sibirica (Sialidae: Megaloptera) were dominant in palsa ponds.

Original languageEnglish
Pages (from-to)145-149
Number of pages5
JournalJapanese Journal of Limnology
Volume64
Issue number2
DOIs
Publication statusPublished - 2003 Aug

Keywords

  • Bog
  • Daisetsuzan National Park
  • Lentic aquatic insects
  • Palsa

ASJC Scopus subject areas

  • Aquatic Science
  • Ecology
  • Water Science and Technology

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