open access

https://hdl.handle.net/2115/49045

Ecological characteristics in oligochaetes (Annelida, Citellata) found in red snow “Akashibo” at Ozehagara mire, central Japan

日本語

oligochaetes

2012-03-31

Institute of Low Temperature Science, Hokkaido University

Low Temperature Science

70

87-92

To elucidate the reason for abundant occurrence of oligochaetes (Annelida, Citellata) in the red snow“Akashibo”at Ozegahara mire, central Japan, ecological and reproductive features of oligochaetes are briefly reviewed, and the faunal characteristics in oligochaetes in Sphagnum mires and snows were discussed from the viewpoints of habitat preference of oligochaetes. Along with Sphagnum mire itself, the snow on the mire is a kind of ecotone in which content of liquid water varies drastically and enable to harbor both terrestrial and aquatic forms. The Akashibo snow found in the snowmelt season consisted of granular ice particles and saturated water, providing interstitial habitats for small aquatic animals. The water bearing Akashibo snows harbored many enchytraeid and naidid oligochaetes which are primarily aquatic and small enough to move in the wet snow.

紀要論文

Version of Record

1880-7593