Author's Organization:Institute of Genetic Ecology, Tohoku University Institute of Genetic Ecology, Tohoku University Faculty of Science, Hokkaido University Institute of Genetic Ecology, Tohoku University
Published: June 01, 1992Received: January 14, 1992Available on J-STAGE: April 18, 2008Accepted: March 19, 1992
Advance online publication: -
Revised: -