- Data from: Sex allocation conflict between queens and workers in Formica pratensis wood ants predicts seasonal sex ratio variation(2016-07-20) Helanterä, Heikki; Kulmuni, Jonna; Pamilo, Pekka; University of Helsinki - Helanterä, Heikki; University of Helsinki - Kulmuni, Jonna; University of Helsinki - Pamilo, Pekka