札幌およびその近郊におけるシワクシケアリの2型について
1981 年 31 巻 2 号 p. 131-137
詳細
1981 年 31 巻 2 号 p. 131-137
Based upon ecological aspects, Myrmica ruginodis Nylander from Sapporo and its vicinitv is divided into two forms, one occurring in riverside areas and the other in woodland. The riverside form is polygynous and produces fewer new queens, which suggests colony reproduction by fission and the internest movement of workers. The woodland form is generally monogynous, produces many queens, and conducts colony reproduction by solitary queens.
